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Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply."},{"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. Complaints, questions, quote req…"},{"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. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- fr…"},{"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. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply."},{"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. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback -- free, no account. Every report …"},{"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}. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/feedback --…"},{"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. Complaints, questions, quote requests, or a ser…"},{"id":"watch-url","name":"Watch a URL until a condition fires","tags":["watch","monitoring","polling","accountless","agents"],"description":"POST /watch -- Pay to have us poll a URL for you until a condition fires -- status changed or equals, body contains or stops containing, a JSON path equals or stops equaling, or anything changed since you registered -- or until the TTL runs out. Priced by how often and how long. Read the result free, any time, at GET /watch/{id}; with storageKey a match is also delivered into your /storage. Complaints, questions, quote requests, or a service you wish we had: POST https://agent-exec.448c.org/fee…"}],"tools":null,"extra":{"ard":{"type":"application/a2a-agent-card+json","metadata":null,"identifier":"urn:air:agent-exec.448c.org:a2a:agent-card","artifactUrl":"https://agent-exec.448c.org/.well-known/agent-card.json","representativeQueries":["what skills does agent-exec advertise over a2a?","does agent-exec have an a2a agent card?"]}},"attribution":{"kind":"ard_catalog","name":"ard_catalog","summary":"ard_catalog","description":"ard_catalog","homepageUrl":"ard_catalog","publisherUrl":"ard_catalog","publisherName":"ard_catalog"}},"derived":{"capabilities":[],"categories":[],"language":"en"},"observed":{"status":"live","statusReason":"Responded 4m ago.","lastOkAt":"2026-10-18T07:22:22.832Z","lastProbedAt":"2026-10-18T07:22:22.832Z","statusComputedAt":"2026-10-18T07:25:09.764Z","reliability30d":{"probes":98,"successRate":1,"p50Ms":36,"basis":"service","measures":{"availability":"availability","latency":"response time","tools":"tool surface observed","summary":"Checks reached the service itself."},"checks":{"total":98,"ok":98,"authBoundaryOk":0,"serviceOk":98,"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":"2026-10-18T07:22:22.832Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":38,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-18T00:28:59.483Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":18,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-17T17:24:51.091Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":19,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-17T10:22:01.162Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":55,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-17T03:23:40.094Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":26,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-16T20:35:48.172Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":38,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-16T13:27:57.358Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":30,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-16T06:29:53.628Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":22,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-15T23:27:23.831Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":23,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}},{"at":"2026-10-15T16:29:58.501Z","kind":"a2a_card","ok":true,"httpStatus":200,"latencyMs":55,"error":null,"detail":{"name":"agent-exec","signed":false,"version":"0.1.0","cardPath":"/.well-known/agent-card.json","skillCount":14}}],"tools":null,"package":null,"toolSurface":null,"endpointFacts":[{"id":"ep_s6dxqwbp7hps","url":"https://agent-exec.448c.org","type":"a2a","factsCheckedAt":"2026-10-18T00:28:59.498Z","auth":null,"tls":{"observedAt":"2026-10-18T00:28:59.539Z","protocol":"TLSv1.3","chainValid":true,"chainError":null,"hostMatches":true,"subject":"agent-exec.448c.org","issuer":{"commonName":"YE2","organization":"Let's Encrypt"},"validFrom":"2026-09-20T10:27:20.000Z","validTo":"2026-12-19T10:27:19.000Z","daysToExpiry":62,"sanCount":1,"fingerprint256":"3E:65:C6:9F:78:C0:B5:40:A2:5B:63:EB:40:6F:3F:51:2F:4B:0B:4A:9E:C6:DC:F9:3A:8E:FF:08:AC:8E:A5:14"}}]},"verification":{"claimed":false,"claimedAt":null,"proofs":[]},"provenance":{"sources":[{"source":"ard_catalog","key":"urn:air:agent-exec.448c.org:a2a:agent-card","url":"https://agent-exec.448c.org/.well-known/ard.json","firstSeenAt":"2026-09-21T10:28:20.072Z","fetchedAt":"2026-10-14T15:25:06.297Z","normalizedAt":"2026-10-14T15:25:06.297Z"}]},"firstSeenAt":"2026-09-21T10:28:20.072Z","updatedAt":"2026-09-21T10:28:28.023Z"}