{"id":507894,"name":"agent-exec","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.","card_url":"https://agent-exec.448c.org/.well-known/agent-card.json?via=apex","endpoint":"https://agent-exec.448c.org/mcp","protocol_version":"1.0","first_seen":"2026-10-29T21:12:41.281213+00:00","last_verified":"2026-10-29T21:12:41.281213+00:00","card":{"url":"https://agent-exec.448c.org/mcp","name":"agent-exec","skills":[{"id":"execute-code","name":"Execute code","tags":["compute","sandbox","code-execution","agents","deterministic"],"inputModes":["application/json"],"description":"POST /execute -- Run source code to completion in the sandbox; returns stdout, stderr, exit code. 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.","outputModes":["application/json"]},{"id":"promote-listing","name":"Promote a directory listing","tags":["x402","directory","paid-placement","advertising","agents"],"inputModes":["application/json"],"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 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.","outputModes":["application/json"]},{"id":"store-object","name":"Store an object","tags":["storage","agent-memory","compute","agents"],"inputModes":["application/json"],"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 -- free, no account. Every report is read and analysed daily; there is no individual reply.","outputModes":["application/json"]},{"id":"claim-key","name":"Claim a key","tags":["coordination","compare-and-set","fleet","agents"],"inputModes":["application/json"],"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 racing itself, not mutually distrusting strangers over a shared namespace. 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.","outputModes":["application/json"]},{"id":"attest-url","name":"Attest a URL","tags":["attestation","fetch","proof","agents"],"inputModes":["application/json"],"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.","outputModes":["application/json"]},{"id":"handoff-context","name":"Hand off context to a successor","tags":["handoff","context","continuity","accountless","agents"],"inputModes":["application/json"],"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 is read and analysed daily; there is no individual reply.","outputModes":["application/json"]},{"id":"deadman-journal","name":"Register a dead-man's journal entry","tags":["deadman","verification","irreversible-actions","accountless","agents"],"inputModes":["application/json"],"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 -- free, no account. Every report is read and analysed daily; there is no individual reply.","outputModes":["application/json"]},{"id":"drift-check","name":"Diff a venue against our archived baseline","tags":["drift","schema","monitoring","attestation","agents"],"inputModes":["application/json"],"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 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.","outputModes":["application/json"]},{"id":"watch-url","name":"Watch a URL until a condition fires","tags":["watch","monitoring","polling","accountless","agents"],"inputModes":["application/json"],"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/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.","outputModes":["application/json"]},{"id":"check-address","name":"Check an EVM address against public risk feeds","tags":["check","risk","address","accountless","agents"],"inputModes":["application/json"],"description":"POST /check/address -- Pay to check an EVM address against public risk feeds (OFAC, community darklists, on-chain age) and get back a verdict, score and reasons. 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.","outputModes":["application/json"]},{"id":"check-url","name":"Check a URL against public risk feeds","tags":["check","risk","url","accountless","agents"],"inputModes":["application/json"],"description":"POST /check/url -- Pay to check a URL against public risk feeds (phishing lists, domain age, lexical signals) and get back a verdict, score and reasons. 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.","outputModes":["application/json"]},{"id":"pay-verified","name":"Deliver an x402 authorization you signed and check it on chain","tags":["pay","x402","payment","receipt","accountless","agents"],"inputModes":["application/json"],"description":"POST /pay -- Pay to have an x402 authorization YOU signed delivered to a seller exactly once and then checked on chain, and get back a receipt of what the seller answered. Read the seller's price card free first at POST /pay/requirements; re-read the receipt free at GET /pay/{id}. 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.","outputModes":["application/json"]},{"id":"inbox-disposable","name":"Receive verification mail at a disposable address","tags":["inbox","email","otp","verification","disposable","accountless","agents"],"inputModes":["application/json"],"description":"POST /inbox -- Pay for a disposable email address on a domain we own, live 24 h, to receive the verification mail a signup demands. RECEIVE ONLY -- nothing is ever sent from it. Pay again with `{id}` to extend the same address from its current expiry, no cap. Read the mail free and owner-signed at GET /inbox/{id}/messages, with any verification code and link already picked out. 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.","outputModes":["application/json"]},{"id":"dns-name","name":"Rent a DNS name no registrar account can revoke","tags":["dns","domain","name","tls","accountless","agents"],"inputModes":["application/json"],"description":"POST /dns -- Pay to rent <label>.448c.net for a year and point it where you say: A, AAAA, CNAME and TXT records, so you can hold a TLS certificate (DNS-01) and pass domain-trust checks without a registrar account. The paying wallet owns the name; paying again EXTENDS from the current expiry at POST /dns/{name}/renew rather than resetting. One free name per wallet at POST /dns/free. Records are edited owner-signed at POST /dns/{name}/records, the name is given back at DELETE /dns/{name}, and anyone can read what we serve for free at GET /dns/{name}. 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.","outputModes":["application/json"]},{"id":"placement-order","name":"Get listed in every agent venue, with proof the entry landed","tags":["listing","submission","directory","discovery","proof","agents"],"inputModes":["application/json"],"description":"POST /placement -- Pay once and we submit YOUR service to every agent venue we hold a submitter for -- 17 of the 33 on-behalf venues today, the rest the hour their submitter lands -- then verify per venue that the entry is really in the catalogue and keep rechecking for 90 days (every 7 days). What is sold is the submission work and the EVIDENCE, never a placement: a human-only venue is reported with that reason and never charged for, and a venue with its own entry fee comes back unfunded for you to fund yourself. Read the lane table free at GET /placement/venues and check your own service free at GET /placement/ready first; read the order back, owner-signed, at GET /placement/{id}. 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.","outputModes":["application/json"]},{"id":"x402-supported","name":"List the x402 payment kinds this service accepts","tags":["x402","facilitator","payments","discovery","free","agents"],"inputModes":["application/json"],"description":"GET /supported -- Free: the x402 facilitator read contract -- {kinds:[{x402Version, scheme, network}]}, folded out of this very document's accepts[], so it cannot claim a scheme or network we do not take. Also served, same handler and same body, at /x402/supported, /facilitator/supported, /facilitator/v2/supported, /api/supported. No payment, no key, no RPC. 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.","outputModes":["application/json"]},{"id":"x402-verify","name":"Verify an x402 payment offline","tags":["x402","facilitator","verification","payments","free","agents"],"inputModes":["application/json"],"description":"POST /verify -- Free: check an EVM `exact` x402 payment offline -- send {x402Version, paymentPayload, paymentRequirements}, get {isValid, invalidReason?, payer?}. EIP-712 recovery plus the same scheme/network/recipient/amount/validity checks this service runs on its own paid routes; it does NOT read the payer's on-chain balance or nonce, and a Solana payload is refused rather than called invalid. Also served at /x402/verify, /facilitator/verify, /api/verify. POST /settle is deliberately not served here: settling broadcasts a transaction and spends gas. 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.","outputModes":["application/json"]}],"address":"0xc8Fceb0F3611BE99c41586eA2B83F6A0911d2Ff0","iconUrl":"https://agent-exec.448c.org/icon.svg","version":"0.1.0","provider":{"url":"https://agent-exec.448c.org","organization":"agent-exec"},"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.","capabilities":{"streaming":false,"extendedAgentCard":false,"pushNotifications":false},"agentGalaxySlug":"agent-exec","protocolVersion":"1.0","documentationUrl":"https://agent-exec.448c.org/llms.txt","defaultInputModes":["application/json"],"defaultOutputModes":["application/json"],"supportedInterfaces":[{"url":"https://agent-exec.448c.org","protocolBinding":"https://agent-exec.448c.org/openapi.json","protocolVersion":"1.0"},{"url":"https://agent-exec.448c.org/mcp","protocolBinding":"JSONRPC","protocolVersion":"1.0"}]},"status":"verified","publisher_domain":"448c.org","signature_status":"unsigned","signature_detail":"No card signature supplied","signature_key_url":null,"signature_checked_at":"2026-10-29T21:12:41.281213+00:00","domain_claimed_at":null,"domain_proof_checked_at":null,"source_name":"Publisher Agent Card","source_url":"https://agent-exec.448c.org/.well-known/agent-card.json?via=apex","last_check":{"checked_at":"2026-10-29T21:12:41.281213+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"also_published_at":[],"history_urls":["https://agent-exec.448c.org/.well-known/agent-card.json?via=apex"],"skills":[{"skill_id":"attest-url","name":"Attest a URL","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.","tags":["attestation","fetch","proof","agents"],"quality_warning":false},{"skill_id":"check-url","name":"Check a URL against public risk feeds","description":"POST /check/url -- Pay to check a URL against public risk feeds (phishing lists, domain age, lexical signals) and get back a verdict, score and reasons. 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.","tags":["check","risk","url","accountless","agents"],"quality_warning":false},{"skill_id":"check-address","name":"Check an EVM address against public risk feeds","description":"POST /check/address -- Pay to check an EVM address against public risk feeds (OFAC, community darklists, on-chain age) and get back a verdict, score and reasons. 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.","tags":["check","risk","address","accountless","agents"],"quality_warning":false},{"skill_id":"claim-key","name":"Claim a key","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 racing itself, not mutually distrusting strangers over a shared namespace. 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.","tags":["coordination","compare-and-set","fleet","agents"],"quality_warning":false},{"skill_id":"pay-verified","name":"Deliver an x402 authorization you signed and check it on chain","description":"POST /pay -- Pay to have an x402 authorization YOU signed delivered to a seller exactly once and then checked on chain, and get back a receipt of what the seller answered. Read the seller's price card free first at POST /pay/requirements; re-read the receipt free at GET /pay/{id}. 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.","tags":["pay","x402","payment","receipt","accountless","agents"],"quality_warning":false},{"skill_id":"drift-check","name":"Diff a venue against our archived baseline","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 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.","tags":["drift","schema","monitoring","attestation","agents"],"quality_warning":false},{"skill_id":"execute-code","name":"Execute code","description":"POST /execute -- Run source code to completion in the sandbox; returns stdout, stderr, exit code. 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.","tags":["compute","sandbox","code-execution","agents","deterministic"],"quality_warning":false},{"skill_id":"placement-order","name":"Get listed in every agent venue, with proof the entry landed","description":"POST /placement -- Pay once and we submit YOUR service to every agent venue we hold a submitter for -- 17 of the 33 on-behalf venues today, the rest the hour their submitter lands -- then verify per venue that the entry is really in the catalogue and keep rechecking for 90 days (every 7 days). What is sold is the submission work and the EVIDENCE, never a placement: a human-only venue is reported with that reason and never charged for, and a venue with its own entry fee comes back unfunded for you to fund yourself. Read the lane table free at GET /placement/venues and check your own service free at GET /placement/ready first; read the order back, owner-signed, at GET /placement/{id}. 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.","tags":["listing","submission","directory","discovery","proof","agents"],"quality_warning":false},{"skill_id":"handoff-context","name":"Hand off context to a successor","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 is read and analysed daily; there is no individual reply.","tags":["handoff","context","continuity","accountless","agents"],"quality_warning":false},{"skill_id":"x402-supported","name":"List the x402 payment kinds this service accepts","description":"GET /supported -- Free: the x402 facilitator read contract -- {kinds:[{x402Version, scheme, network}]}, folded out of this very document's accepts[], so it cannot claim a scheme or network we do not take. Also served, same handler and same body, at /x402/supported, /facilitator/supported, /facilitator/v2/supported, /api/supported. No payment, no key, no RPC. 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.","tags":["x402","facilitator","payments","discovery","free","agents"],"quality_warning":false},{"skill_id":"promote-listing","name":"Promote a directory listing","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 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.","tags":["x402","directory","paid-placement","advertising","agents"],"quality_warning":false},{"skill_id":"inbox-disposable","name":"Receive verification mail at a disposable address","description":"POST /inbox -- Pay for a disposable email address on a domain we own, live 24 h, to receive the verification mail a signup demands. RECEIVE ONLY -- nothing is ever sent from it. Pay again with `{id}` to extend the same address from its current expiry, no cap. Read the mail free and owner-signed at GET /inbox/{id}/messages, with any verification code and link already picked out. 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.","tags":["inbox","email","otp","verification","disposable","accountless","agents"],"quality_warning":false},{"skill_id":"deadman-journal","name":"Register a dead-man's journal entry","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 -- free, no account. Every report is read and analysed daily; there is no individual reply.","tags":["deadman","verification","irreversible-actions","accountless","agents"],"quality_warning":false},{"skill_id":"dns-name","name":"Rent a DNS name no registrar account can revoke","description":"POST /dns -- Pay to rent <label>.448c.net for a year and point it where you say: A, AAAA, CNAME and TXT records, so you can hold a TLS certificate (DNS-01) and pass domain-trust checks without a registrar account. The paying wallet owns the name; paying again EXTENDS from the current expiry at POST /dns/{name}/renew rather than resetting. One free name per wallet at POST /dns/free. Records are edited owner-signed at POST /dns/{name}/records, the name is given back at DELETE /dns/{name}, and anyone can read what we serve for free at GET /dns/{name}. 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.","tags":["dns","domain","name","tls","accountless","agents"],"quality_warning":false},{"skill_id":"store-object","name":"Store an object","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 -- free, no account. Every report is read and analysed daily; there is no individual reply.","tags":["storage","agent-memory","compute","agents"],"quality_warning":false},{"skill_id":"x402-verify","name":"Verify an x402 payment offline","description":"POST /verify -- Free: check an EVM `exact` x402 payment offline -- send {x402Version, paymentPayload, paymentRequirements}, get {isValid, invalidReason?, payer?}. EIP-712 recovery plus the same scheme/network/recipient/amount/validity checks this service runs on its own paid routes; it does NOT read the payer's on-chain balance or nonce, and a Solana payload is refused rather than called invalid. Also served at /x402/verify, /facilitator/verify, /api/verify. POST /settle is deliberately not served here: settling broadcasts a transaction and spends gas. 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.","tags":["x402","facilitator","verification","payments","free","agents"],"quality_warning":false},{"skill_id":"watch-url","name":"Watch a URL until a condition fires","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/feedback -- free, no account. Every report is read and analysed daily; there is no individual reply.","tags":["watch","monitoring","polling","accountless","agents"],"quality_warning":false}],"quality_flags":[],"check_history":{"checks":1,"passed":1},"recent_checks":[{"card_url":"https://agent-exec.448c.org/.well-known/agent-card.json?via=apex","checked_at":"2026-10-29T21:12:41.281213+00:00","success":true,"http_status":200,"detail":"Agent Card validated"}],"endpoint_tls_check":{"checked_at":"2026-10-29T21:12:41.281213+00:00","success":true,"detail":"Valid TLS connection to advertised endpoint host; no A2A request sent"},"protocol_check":{"checked_at":"2026-10-29T21:12:41.281213+00:00","endpoint":"https://agent-exec.448c.org/mcp","protocol_binding":"JSONRPC","protocol_version":"1.0","state":"a2a_response","http_status":200,"detail":"A2A task-not-found response to a read-only task lookup","request_diagnostics":{"requests":[{"path":"/mcp","allow":[],"method":"POST","status":200,"version_header":"1.0","protocol_method":"GetTask","redirect_followed":false}],"capture_version":1}},"declared_primary_endpoint":"https://agent-exec.448c.org/mcp","selected_connection_interface":{"url":"https://agent-exec.448c.org/mcp","protocolBinding":"JSONRPC","protocolVersion":"1.0"},"protocol_interface_checks":[{"endpoint":"https://agent-exec.448c.org/mcp","protocol_binding":"JSONRPC","protocol_version":"1.0","selected":true,"state":"a2a_response","checked_at":"2026-10-29T21:12:41.281213+00:00","http_status":200,"detail":"A2A task-not-found response to a read-only task lookup","binding_recorded":true}],"connection_selection_note":"The selected connection uses an address advertised in the publisher card. Read-only observations do not establish task quality or safety.","x402_price_check":null,"events":[],"relationships":[],"verification":{"agent_card_url":"https://agent-exec.448c.org/.well-known/agent-card.json?via=apex","last_successful_card_check":"2026-10-29T21:12:41.281213+00:00","latest_card_check":{"checked_at":"2026-10-29T21:12:41.281213+00:00","success":true,"http_status":200,"detail":"Agent Card validated"},"signature_status":"unsigned","signature_checked_at":"2026-10-29T21:12:41.281213+00:00","task_endpoint_tested":true,"task_execution_tested":false,"endpoint_tls_checked_at":"2026-10-29T21:12:41.281213+00:00","endpoint_tls_reachable":true,"protocol_check_state":"a2a_response","protocol_checked_at":"2026-10-29T21:12:41.281213+00:00","provider_identity_verified":false,"domain_claimed_at":null,"domain_proof_checked_at":null},"synthetic_capability_tests":{"agent_id":507894,"status":"not_tested","reason_code":"not_yet_tested","consent_status":"not_confirmed","latest_observation_status":null,"last_checked_at":null,"fixture_version":"1","reference_demonstration":false,"scope":"A publisher-authorized synthetic test of a dedicated free test endpoint. 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