{"$schema":"https://wellknown.network/schemas/agent-record-v1.json","schemaVersion":"1","id":"ag_f82nqje4bahz","handle":"fixsim","url":"https://wellknown.network/agents/fixsim","links":{"self":"https://wellknown.network/agents/fixsim/record.json","html":"https://wellknown.network/agents/fixsim","markdown":"https://wellknown.network/agents/fixsim/record.md","api":"https://wellknown.network/api/v1/agents/fixsim","status":"https://wellknown.network/api/v1/agents/fixsim/status","claim":"https://wellknown.network/agents/fixsim/claim","claimApi":"https://wellknown.network/api/v1/claims","claimDescriptor":"https://wellknown.network/agents/fixsim/claim.json","badge":"https://wellknown.network/agents/fixsim/badge.svg","openapi":"https://wellknown.network/openapi.json","history":"https://wellknown.network/api/v1/agents/fixsim/history","tools":"https://wellknown.network/api/v1/agents/fixsim/tools"},"ard":{"identifier":"urn:air:mcp.fixsim.com:server:fixsim","type":"application/mcp-server-card+json"},"kind":"mcp_server","declared":{"name":"FIXSIM","summary":"Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.","description":"Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.","publisher":{"name":"GammaThreeTrading","url":null},"homepage":"https://www.fixsim.com/sandbox","repository":"https://github.com/GammaThreeTrading/fixsim-mcp","version":"0.1.2","license":null,"protocols":["mcp"],"tags":[],"pricing":null,"endpoints":[{"url":"https://mcp.fixsim.com/mcp","type":"mcp_streamable_http","auth":null,"probeable":true}],"skills":null,"tools":null,"extra":{"updatedAt":"2026-09-13T03:14:07.041606Z","publishedAt":"2026-09-13T03:14:07.041606Z","registryName":"io.github.GammaThreeTrading/fixsim"},"attribution":{"kind":"mcp_registry","name":"mcp_registry","repoUrl":"mcp_registry","summary":"mcp_registry","version":"mcp_registry","description":"mcp_registry","homepageUrl":"mcp_registry","publisherName":"mcp_registry"}},"derived":{"capabilities":[{"slug":"finance.markets","name":"Markets & Trading","confidence":1,"provenance":"derived"},{"slug":"code.execution","name":"Code Execution","confidence":0.911,"provenance":"derived"}],"categories":["code","finance"],"language":"en"},"observed":{"status":"live","statusReason":"Responded 1h ago.","lastOkAt":"2026-10-11T00:26:44.857Z","lastProbedAt":"2026-10-11T00:26:44.857Z","statusComputedAt":"2026-10-11T00:29:02.023Z","reliability30d":{"probes":99,"successRate":1,"p50Ms":122,"basis":"service","measures":{"availability":"availability","latency":"response time","tools":"tool surface observed","summary":"Checks reached the service itself."},"checks":{"total":99,"ok":99,"authBoundaryOk":0,"serviceOk":99,"note":"Counted from the observation rows for the window, checks of the server only (HTTP, A2A card, MCP initialize). ok = authBoundaryOk + serviceOk. `probes` is the sum of daily rollups and includes registry checks, so it can differ from `total`."}},"latestObservations":[{"at":"2026-10-11T00:26:44.857Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":122,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-10T17:28:52.116Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":134,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-10T10:29:35.384Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":157,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-10T04:31:22.530Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":111,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-09T21:26:08.798Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":117,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-09T14:30:02.284Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":127,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-09T07:26:24.440Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":184,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-09T01:26:40.104Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":122,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-08T19:23:48.047Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":117,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}},{"at":"2026-10-08T13:23:20.647Z","kind":"mcp_initialize","ok":true,"httpStatus":200,"latencyMs":123,"error":null,"detail":{"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"toolCount":21,"toolsHash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","serverName":"fixsim","capabilities":["logging","tools"],"serverVersion":"0.1.2","protocolVersion":"2025-06-18"}}],"tools":[{"name":"fixsim_list_orders_out","description":"Orders FIXSIM sent OUT on a session (created with fixsim_send_order). Pass clOrdId to fetch one."},{"name":"sandbox_get_status","description":"Is the user's FIX engine connected to the sandbox session? Returns state: connected, waiting (nobody logged on yet), disabled, or unknown."},{"name":"fixsim_send_order","description":"Have FIXSIM send a New Order Single (35=D) OUT on a session to the user's system, so they can test how their system handles inbound orders. Follow up with fixsi"},{"name":"fixsim_list_orders_in","description":"Orders the user's trading system sent INTO FIXSIM on a session (FIXSIM is the counterparty). Includes ClOrdID, symbol, side, quantity, remaining quantity, order"},{"name":"fixsim_list_executions_in","description":"Execution reports the user's system sent INTO FIXSIM on a session (when FIXSIM is the order sender and the user's system is the executing side). Optionally filt"},{"name":"fixsim_act_on_orders","description":"Respond to orders the user's system sent into FIXSIM: acknowledge, fully or partially execute, reject, cancel remaining, expire, done-for-day, restate, or accep"},{"name":"sandbox_set_autofill","description":"Turn automatic fills on or off for a sandbox session. On: every order the user sends is filled immediately at the security's last price. Off (default): orders a"},{"name":"fixsim_cancel_order_out","description":"Have FIXSIM send an Order Cancel Request (35=F) for an order it previously sent out with fixsim_send_order."},{"name":"fixsim_list_sessions","description":"List the FIX sessions on an instance with their FIX version, CompIDs, acceptor/initiator role, host/port, enabled and logged-in state, and sequence numbers."},{"name":"fixsim_list_executions_out","description":"Execution reports FIXSIM sent OUT on a session (acks, fills, partial fills, rejects, cancels). Pass clOrdId to see the full execution history of one order: Exec"},{"name":"fixsim_get_session","description":"Get one FIX session's settings and live state (logged in?, sequence numbers, connection details)."},{"name":"sandbox_act_on_order","description":"Play the exchange for one order the user sent in: fill (full execution), partial (partial fill), reject, or cancel (cancel the remaining quantity). FIXSIM sends"},{"name":"fixsim_get_order_in","description":"Get one inbound order by ClOrdID (tag 11), including its raw FIX message and audit trail. Use this to explain why an order was rejected or what state it is in."},{"name":"sandbox_get_orders","description":"Working orders the user's engine has sent into the sandbox session: ClOrdID, symbol, side, qty, filled, leaves, price, status."},{"name":"sandbox_get_messages","description":"The FIX message log for a sandbox session, oldest first: logons, heartbeats, orders in, execution reports out, rejects. Each message has seq, timeUtc, inbound ("},{"name":"sandbox_create_session","description":"Create a free, anonymous FIX test session on the FIXSIM Developer Sandbox. No account or API key needed. Returns the connection card: host, port, the SenderComp"},{"name":"sandbox_end_session","description":"End a sandbox session now instead of waiting for it to expire. Frees the slot for the user's IP."},{"name":"fixsim_send_raw_fix","description":"Send one or more raw FIX application messages OUT on a session as given (tag=value pairs separated by | or SOH). FIXSIM supplies the session header fields (Begi"},{"name":"fixsim_list_instances","description":"List the FIXSIM instances your API key can access. An instance is a hosted FIX engine; each holds one or more FIX sessions. Start here to learn the instance nam"},{"name":"fixsim_list_securities","description":"Securities (symbol, last price, CUSIP, ISIN) configured on an instance. FIXSIM prices fills from these."},{"name":"sandbox_get_session","description":"Re-fetch a sandbox session's connection card by id, including whether auto-fill is on and when it expires."}],"package":null,"toolSurface":{"id":"ts_8tns4t7x3gy2","endpointId":"ep_597b7tkmhth4","hash":"869e6ba43efc50dc0719589396cb116c15205bb31f2e4f8ce1c9745c942d6626","toolCount":21,"serverName":"fixsim","serverVersion":"0.1.2","protocolVersion":"2025-06-18","firstSeenAt":"2026-09-14T05:25:39.511Z","lastSeenAt":"2026-10-11T00:26:44.859Z","observations":99,"toolNames":["fixsim_list_orders_out","sandbox_get_status","fixsim_send_order","fixsim_list_orders_in","fixsim_list_executions_in","fixsim_act_on_orders","sandbox_set_autofill","fixsim_cancel_order_out","fixsim_list_sessions","fixsim_list_executions_out","fixsim_get_session","sandbox_act_on_order","fixsim_get_order_in","sandbox_get_orders","sandbox_get_messages","sandbox_create_session","sandbox_end_session","fixsim_send_raw_fix","fixsim_list_instances","fixsim_list_securities","sandbox_get_session"],"distinctSurfaces":1},"endpointFacts":[{"id":"ep_597b7tkmhth4","url":"https://mcp.fixsim.com/mcp","type":"mcp_streamable_http","factsCheckedAt":"2026-10-09T14:30:02.301Z","auth":{"observedAt":"2026-10-09T14:30:02.394Z","authRequired":false,"scheme":null,"resourceMetadata":null,"authorizationServer":null,"conformance":{"dpop":false,"rfc8414":false,"rfc9728":false,"pkceS256":false,"clientIdMetadataDocument":false,"dynamicClientRegistration":false}},"tls":{"observedAt":"2026-10-09T14:30:02.678Z","protocol":"TLSv1.3","chainValid":true,"chainError":null,"hostMatches":true,"subject":"mcp.fixsim.com","issuer":{"commonName":"GeoTrust TLS RSA CA G1","organization":"DigiCert Inc"},"validFrom":"2026-09-06T00:00:00.000Z","validTo":"2027-03-06T23:59:59.000Z","daysToExpiry":146,"sanCount":1,"fingerprint256":"F7:B2:62:0E:18:54:FA:39:AD:65:C5:E2:9D:43:B2:C1:1D:BD:82:0A:61:B3:AF:BB:10:FE:FF:43:F0:59:12:CE"}}]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"mcp_registry","key":"io.github.GammaThreeTrading/fixsim","url":"https://registry.modelcontextprotocol.io/v0/servers/io.github.GammaThreeTrading%2Ffixsim","firstSeenAt":"2026-09-14T05:22:33.374Z","fetchedAt":"2026-10-09T21:19:33.953Z","normalizedAt":"2026-10-09T21:19:33.953Z"}]},"firstSeenAt":"2026-09-14T05:22:33.374Z","updatedAt":"2026-10-11T00:30:12.371Z"}