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No account, no API key -- possession of valid payment is sufficient.","description":"Accountless, pay-per-use code execution for software agents: submit source code, get stdout, stderr and exit code back from an isolated, network-less sandbox. No account, no API key -- possession of valid payment is sufficient.","publisher":{"name":"agent-exec","url":"https://agent-exec.45.67.221.128.sslip.io"},"homepage":"https://agent-exec.45.67.221.128.sslip.io/llms.txt","repository":null,"version":"0.1.0","license":null,"protocols":["a2a"],"tags":["compute","sandbox","code-execution","agents","deterministic","x402","directory","paid-placement","advertising","storage","agent-memory","coordination","compare-and-set","fleet","attestation","fetch","proof","handoff","context","continuity","accountless","deadman","verification","irreversible-actions","drift","schema","monitoring","a2a","agent-card"],"pricing":null,"endpoints":[{"url":"https://agent-exec.45.67.221.128.sslip.io","type":"a2a","auth":"none","probeable":true}],"skills":[{"id":"execute-code","name":"Execute code","tags":["compute","sandbox","code-execution","agents","deterministic"],"description":"POST /execute -- Run source code to completion in the sandbox; returns stdout, stderr, exit code."},{"id":"promote-listing","name":"Promote a directory listing","tags":["x402","directory","paid-placement","advertising","agents"],"description":"POST /listings/promote -- Buy paid placement for a directory listing you own, priced by time -- one resource among several this service sells, not the whole product. Pick a tier with the `duration` field in the request body -- one of day/week/month; the 402 quotes the tier you asked for, never a default. `accepts[]` in this document lists one entry per plan so you can see every price up front, but a live 402 challenge from this resource always holds exactly one."},{"id":"store-object","name":"Store an object","tags":["storage","agent-memory","compute","agents"],"description":"POST /storage -- Accountless, pay-per-use durable object storage for software agents: pay once for a byte cap and a retention window, then read your bytes back for free with a wallet signature. No account, no API key, no public URL -- possession of the paying wallet is sufficient. Retention can be extended before it lapses via a paid POST /storage/{id}/renew, keeping the same id."},{"id":"claim-key","name":"Claim a key","tags":["coordination","compare-and-set","fleet","agents"],"description":"POST /claim -- Accountless compare-and-set: pay once to atomically win a caller-named key for your own paying wallet's fleet, or learn who already holds it. Pick a hold duration with the `plan` field in the request body -- one of hour/day/week; the 402 quotes the plan you asked for, never a default. `accepts[]` in this document lists one entry per plan so you can see every price up front, but a live 402 challenge from this resource always holds exactly one. Coordinates one wallet's own fleet ra…"},{"id":"attest-url","name":"Attest a URL","tags":["attestation","fetch","proof","agents"],"description":"POST /attest -- Pay to have us fetch a URL from OUR vantage point and return a signed, timestamped attestation of what we saw -- hash, byte count, status and headers, never the body. Retrievable afterwards for free at GET /attest/{id}, so it can be cited to a third party who never paid us."},{"id":"handoff-context","name":"Hand off context to a successor","tags":["handoff","context","continuity","accountless","agents"],"description":"POST /handoff -- Pay to deposit a typed briefing for your successor process -- what's done and how it was verified, what's not done, what was in flight, what to pick up first. Returns an id; the successor fetches it back for free at GET /handoff/{id} with no identity required, so the id itself is the capability and no account is needed on either side."},{"id":"deadman-journal","name":"Register a dead-man's journal entry","tags":["deadman","verification","irreversible-actions","accountless","agents"],"description":"POST /deadman -- Pay to register an irreversible-action intent with a lease and a verification probe (a GET plus a predicate). Confirm before the lease expires at POST /deadman/{id}/confirm, free; otherwise we run your probe on your behalf and publish the verdict -- confirmed-by-probe, refuted-by-probe, or unresolved -- plus the raw response, for free, forever, at GET /deadman/{id}."},{"id":"drift-check","name":"Diff a venue against our archived baseline","tags":["drift","schema","monitoring","attestation","agents"],"description":"POST /drift -- Pay to re-fetch a venue endpoint we already snapshot and diff it against our archived baseline -- field additions/removals, weight re-basing, enum growth, fleet-wide nulling. Substitute the venue as a path segment: POST /drift/{venue}. Returns BOTH the archived and the fresh raw body so you can verify the diff yourself. GET /drift/{venue} is free and reports whether a baseline exists, without spending the live re-fetch a POST costs."}],"tools":["Execute code","Promote a directory listing","Store an object","Claim a key","Attest a URL","Hand off context to a successor","Register a dead-man's journal entry","Diff a venue against our archived baseline"],"extra":{"ard":{"type":"application/a2a-agent-card+json","metadata":null,"identifier":"urn:air:agent-exec.45.67.221.128.sslip.io:a2a:agent-card","artifactUrl":"https://agent-exec.45.67.221.128.sslip.io/.well-known/agent-card.json","representativeQueries":["what skills does agent-exec advertise over a2a?","does agent-exec have an a2a agent card?"]},"inputModes":["application/json"],"outputModes":["application/json"],"capabilities":{"streaming":false,"pushNotifications":false}},"attribution":{"kind":"a2a_card","name":"a2a_card","summary":"a2a_card","version":"a2a_card","description":"a2a_card","homepageUrl":"a2a_card","publisherUrl":"a2a_card","publisherName":"a2a_card"}},"derived":{"capabilities":[{"slug":"code.execution","name":"Code Execution","confidence":1,"provenance":"declared"},{"slug":"dev.filesystem","name":"Filesystem","confidence":1,"provenance":"declared"},{"slug":"commerce.payments","name":"Payments","confidence":1,"provenance":"declared"},{"slug":"ai.agent-discovery","name":"Agent Discovery","confidence":1,"provenance":"derived"},{"slug":"automation.orchestration","name":"Agent Orchestration","confidence":1,"provenance":"declared"},{"slug":"content.marketing","name":"Marketing","confidence":1,"provenance":"declared"},{"slug":"dev.monitoring","name":"Monitoring & Observability","confidence":1,"provenance":"declared"},{"slug":"knowledge.memory","name":"Agent Memory","confidence":0.638,"provenance":"derived"}],"categories":["ai","automation","code","commerce","content","dev","knowledge"]},"observed":{"status":"unknown","statusReason":"Not checked yet.","lastOkAt":null,"lastProbedAt":null,"statusComputedAt":null,"reliability30d":null,"latestObservations":[{"at":"2026-09-07T15:22:01.438Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":57,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":8}},{"at":"2026-09-07T08:29:20.402Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":29,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":8}}],"tools":null,"package":null},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"a2a_card","key":"https://agent-exec.45.67.221.128.sslip.io/.well-known/agent-card.json","url":"https://agent-exec.45.67.221.128.sslip.io/.well-known/agent-card.json","firstSeenAt":"2026-09-07T07:26:04.520Z","fetchedAt":"2026-09-07T07:26:04.520Z","normalizedAt":"2026-09-07T07:26:04.520Z"},{"source":"ard_catalog","key":"urn:air:agent-exec.45.67.221.128.sslip.io:a2a:agent-card","url":"https://agent-exec.45.67.221.128.sslip.io/.well-known/ard.json","firstSeenAt":"2026-09-07T07:28:22.260Z","fetchedAt":"2026-09-07T07:28:22.260Z","normalizedAt":"2026-09-07T07:28:22.260Z"}]},"firstSeenAt":"2026-09-07T07:26:04.520Z","updatedAt":"2026-09-07T07:30:19.394Z"}