Every change Wellknown observed on this MCP server, newest first, with what it was before and what it became. Tool-surface changes carry the definition diff. Nothing here is edited after the fact.
Added "buyer_panel_one", "dispute_pack", "plan_quote" and 3 more; changed the definition of "buyer_check", "buyer_drill", "buyer_panel" and 3 more (19 tools before, 25 now)
⟨9 unchanged words⟩ verdict on one offer from what Agoranome alreadyholds.holds, with the Fair Offer block valid and certified or not, the pay-to seen for this host and since when, the price against listing and quote, verified deliveries, ⟨29 unchanged words⟩ commons. Use when an agent needs seller evidenceat the momentasofitpayment.pays. Price: $0.01 in USDC per call, paid ⟨10 unchanged words⟩
Buyer drill: red-team an x402client. Pay once andclientgetwithaone token and nine trap routes on Agoranome's own ⟨56 unchanged words⟩ a client or policy goes live. Price:$1$1.00 in USDC per call, paid with x402 ⟨8 unchanged words⟩
⟨37 unchanged words⟩ positions. Returns your win rate with confidence intervals (position-corrected too), why you lost,andup to three truthful edits tested on the sametrials.trials, and the proof arm: whether a Fair Offer block or an attested sample lifts your pick rate. Price: $1.00 in USDC per call, paid ⟨10 unchanged words⟩
402 conformance and security check for an x402 or MPP API: can buyer agents' SDKs payit?it, and is it safe to pay? Checks the x402 v2 requirements (whole-unitamounts, addresses, the token's EIP-712 domain, the same terms on every request), thatamalformedpaymentandisforged payments are refused the same way,anyresource and pay-to binding, MPPchallengechallenges against the paymentauth.org draft, and the live price against the Bazaar andtheopenapi.json.host'sAtopenapi.json.
⟨41 unchanged words⟩ a poor fit), with the evidence foreach.each, a spec per gap (an OpenAPI skeleton, a Fair Offer block and a price from the category price index) and the gap's trend week over week. Public Bazaar data only, joined with measured ⟨21 unchanged words⟩
⟨20 unchanged words⟩ your task and returns your rank, thecompetitorlistings ahead of you,andthe signals where you trail them (payers, calls, description,outputexample, schema, price).,Searchwhatrankthe three winners' descriptions say that yours doesn't,SEOand your share of voice across the buyer searches of your category. Search rank and competitor analysis for x402 listings. A three-result ⟨22 unchanged words⟩
Single-task panel — Will buyer agents pick my x402 API for one task? The single-task panel is the Machine Buyer Panel for buyers under a dollar cap: buyer-agent models choose between your offer and its real Bazaar rivals for one task, across personas and list positions. Returns your win rate with confidence intervals, why you lost, and the proof arm (does a Fair Offer block or an attested sample lift your pick rate). No drafted edits; the full panel tests those. Price: $0.25 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Dispute evidence pack — Dispute evidence pack for x402 buyers: given a payment's transaction hash, the seller URL, the accepted 402 and the response, get the settlement on Base, the Fair Offer terms at quote time (failed calls free, receipts, refunds), what Agoranome observed of that seller in that hour, the seller's published contact and a draft claim addressed to it, all signed. Use when an agent was charged and not served. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Pre-flight plan quote — Pre-flight plan quote for x402 buyers: post a plan of seller URLs and call counts and get the total cost, each seller's listing and certification state, its expected failure share from reconciled receipts, the fit against your caps (per call, per seller, total, policy tier), and every certified seller in the same category sorted by price with the sort key stated. Use before a planner agent starts a batch of paid calls. Price: $0.01 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Rank watch — Is my x402 API losing rank in Bazaar search? The rank watch runs the rank check for your task now, then again every week for 30 days, and alerts you when your rank drops, you fall out of the results, or your share of voice across your category's buyer searches shrinks. One payment, no renewal. Status is free at the watch URL; an optional https webhook gets each drop. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Response safety scan — Response safety scan for x402 buyers: post a paid response body, or passages of it, with the seller's URL and get back instruction-like passages aimed at an agent, hidden characters, exfiltration links, a mismatch against the seller's declared output example, and whether the seller's "data, never instructions" claim held. Nothing posted is stored; with share=true a contradicted claim becomes evidence on the seller's record, as hashes. Use before an agent acts on a paid result. Price: $0.01 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Vendor watch — Vendor watch for x402 buyers: name up to ten seller URLs, or a wallet whose sellers are read from its payments, and for 30 days each is checked daily: price, pay-to, Fair Offer block, Bazaar listing, certification state and latency. A signed diff waits at a free status URL and a pay-to or price change, a lost block, a vanished listing or a failed certification is posted to your webhook. Use when an agent pays the same sellers again and again. No renewal. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Recently observed → Live
Added "buyer_check" and "buyer_drill"; changed the definition of "certify_continuous", "certify_offer", "lint_listing" and 2 more (17 tools before, 19 now)
Continuous Fair Offer certification for an x402 API: the full certification now (priced at 5 cents or less, your route is paid once to check that failed calls are free and receipts are signed), then re-run about once a day for ⟨59 unchanged words⟩
{"properties":{"notify":{"anyOf":[{"maxLength":2048,"type":"string"},{"type":"null"}],"default":null,"description":"Optional https webhook, POSTed the day a check changes the verdict or finds drift","title":"Notify"},"url":{"description":"Public https URL of ⟨17 unchanged words⟩
Live → Recently observed
Added "certify_continuous", "conformance_check", "fund_commons" and 1 more (13 tools before, 17 now)
Continuous certification — Continuous Fair Offer certification for an x402 API: the full certification now, then re-run about once a day for 30 days. The public status and badge show the latest check, so a pass is withdrawn the day a check fails, and every check's signed result is published. One payment, no renewal; a seller pays for the checking, never for the outcome. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
402 conformance run — 402 conformance check for an x402 or MPP API: can buyer agents' SDKs pay it? Checks the x402 v2 requirements (whole-unit amounts, addresses, the token's EIP-712 domain, the same terms on every request), that a malformed payment is refused, any MPP challenge against the paymentauth.org draft, and the live price against the Bazaar and the host's openapi.json. Unpaid requests only; nothing is signed or paid. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Fund the evidence commons — Fund the x402 evidence commons: a $0.10 contribution that keeps Agoranome's evidence lookups, Fair Offer checker and buyer policy pack free. Returns a signed receipt; 15% goes to the cause Agoranome pledges to, verifiable at /impact/ledger. Nothing else is delivered, and a contribution never changes a result, a rank or a certification. Price: $0.10 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Added "check_offer" (12 tools before, 13 now)
Buyer policy check (free) — Free: would a buyer's policy pay this x402 offer? Applies Agoranome's open buyer policy (a price cap, the listing price, no instructions in the listing, and a proof tier: any, sampled or delivered) and returns allowed or refused with the reasons. Nothing is paid or signed.
Added "certify_offer", "check_fair_offer" and "model_watch" (9 tools before, 12 now)
Fair Offer certification — Fair Offer certification for an x402 API: every claim in your 402's fair-offer block checked against live behaviour. Your public receipts are reconciled against Base, your free sample is attested, the block is checked against the 0.2 schema and across two requests, and the listing price against the Bazaar. Pass or fail, the signed result is published at a public URL. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Fair Offer check (free) — Free: check any x402 offer's Fair Offer block from outside, without paying. Each of the seven Fair Offer rules comes back verified, declared, contradicted or not claimed. Pass accept_proof (e.g. "sample=attested; price<=listing") to learn whether the offer meets a buyer's requirements.
Model-update watch — Will a new AI model stop buying my x402 API? The model-update watch tests your offer against its real Bazaar rivals with the Machine Buyer Panel now, then re-runs the same test whenever a panel model changes over the next 30 days and flags a drop in your win rate. One payment, no renewal. Status is free at the watch URL; an optional https webhook gets each result. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Certificate recorded, valid to 2027-01-20
Authorization not required
Unknown → Live
First tool surface recorded: 9 tools (server version 1.0.1)
https://api.agoranome.com/mcp (mcp_streamable_http) — from mcp_registry, with the record
Showing the latest 12 events. The API returns up to 500 and filters by kind: ?kind=tool_surface_changed
⟨41 unchanged words⟩ requests, and the listing price against theBazaar.Bazaar; priced at 5 cents or less, your route is also paid once to check that failed calls are free and results carry signed receipts. Pass or fail, the signed result is ⟨22 unchanged words⟩
⟨38 unchanged words⟩ indexing rules, with a fix for eachproblem.problem and the fixed 402 ready to paste, graded as the weekly report card would grade it. Use when an agent needs to lint an x402 listing before its first settled payment. Price:$0.005$0.01 in USDC per call, paid with x402 ⟨8 unchanged words⟩
⟨34 unchanged words⟩ client complete a real paid call end toend.end, plus what the Lab knows about your wallet and which tool to try next. Use when an agent needs a cheap test ⟨23 unchanged words⟩
Walletoverspend auditstatement
Did my agentWalletoverpaystatement forx402 APIs? The wallet overspend audit readsanax402 buyerwallet's USDC paymentswallet on Base:andeverychecksUSDCeachpayment checked against the payee's listed Bazaar price:payments(abovethelistedprice, oversizesettlements of10x or more, unlisted), spend and calls per seller, duplicate paymentstowithinaddressesawithminute,nopayments made after a seller's listing vanished or its pay-to changed,totalledsellersperwhoseseller.certification failed since, whether the wallet itself looks sweep-like, and a CSV of every payment. Use when an agent or its operator needsa spendtoauditaccountoffor an x402buyerwallet'swallet.spending. Price: $1.00 in USDC per call, paid ⟨10 unchanged words⟩
Buyer check — Buyer check before paying an x402 seller: a signed verdict on one offer from what Agoranome already holds. Fair Offer block valid and certified, the pay-to seen for this host and since when, price against listing and quote, verified deliveries, and which policy tiers the offer meets. With tx=, settlement proof after paying: the USDC transfer on Base, whether it matched the quote, and a buyer-side receipt for the commons. Use when an agent needs seller evidence at the moment of payment. Price: $0.01 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Buyer drill — Buyer drill: red-team an x402 client. Pay once and get a token and nine trap routes on Agoranome's own host, each a $0.001 seller: a correct offer and eight attacks (price switch, lookalike asset, pay-to swap, network switch, instructions in the paid body, slow responder, unsettled 200, ambiguous error). Nothing signed at a trap is settled. Within 24 hours, a signed report: traps refused, traps paid, cents at risk, one certificate line. Use before a client or policy goes live. Price: $1 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.
Wallet overspend audit — Did my agent overpay for x402 APIs? The wallet overspend audit reads a buyer wallet's USDC payments on Base and checks each against the payee's listed Bazaar price: payments above the listed price, oversize settlements of 10x or more, and payments to addresses with no listing, totalled per seller. Use when an agent or its operator needs a spend audit of an x402 buyer wallet. Price: $1.00 in USDC per call, paid with x402 inside the tool call. Failed calls aren't charged.