Index / ARD publishers / agent-exec.448c.org

agent-exec.448c.org

agent-exec.448c.org publishes an Agentic Resource Discovery manifest at /.well-known/ard.json, declaring what an AI agent can call on this domain. Everything below is read from that file. First seen by our crawler on 06 October 2026.

23declared resources
23with a callable endpoint
23answering of 23 checked
44verified tools

Declared resource	Type
agent-exec A2A agent cardanswers in 391ms A2A-shaped agent card enumerating agent-exec's payable resources. endpoint: `https://agent-exec.448c.org/.well-known/agent-card.json` identifier: `urn:air:agent-exec.448c.org:a2a:agent-card` published to be found for: What skills does agent-exec advertise over A2A? · Does agent-exec have an A2A agent card? a2a agent-card trust identity: `did:web:agent-exec.448c.org`	application/a2a-agent-card+json
agent-exec llms-full.txtanswers in 400ms 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. endpoint: `https://agent-exec.448c.org/llms-full.txt` identifier: `urn:air:agent-exec.448c.org:doc:llms-full` published to be found for: What does agent-exec sell and how do I pay for it? · Where can I read agent-exec's full documentation as plain text? llms-txt documentation trust identity: `did:web:agent-exec.448c.org`	text/markdown
agent-execanswers44 verified tools MCP server at agent-exec.448c.org, verified by introspection: 44 tools exposed. endpoint: `https://agent-exec.448c.org/mcp` identifier: `urn:air:agent-exec.448c.org:mcp:agent-exec`	application/mcp-server-card+json
agent-exec MCP serveranswers in 399ms Streamable-HTTP MCP server exposing the free/discovery surface of agent-exec. endpoint: `https://agent-exec.448c.org/.well-known/mcp/server-card.json` identifier: `urn:air:agent-exec.448c.org:mcp:server-card` published to be found for: Does agent-exec have an MCP server? · How do I connect to agent-exec over MCP? mcp compute sandbox trust identity: `did:web:agent-exec.448c.org`	application/mcp-server-card+json
agent-exec OpenAPI documentanswers in 394ms Full OpenAPI 3.1 document for every route agent-exec serves, free and paid. endpoint: `https://agent-exec.448c.org/openapi.json` identifier: `urn:air:agent-exec.448c.org:api:openapi` published to be found for: What is the request/response schema for POST /execute? · What error codes can agent-exec return? openapi api trust identity: `did:web:agent-exec.448c.org`	application/vnd.oai.openapi+json;version=3.1
agent-exec URL attestationanswers in 391ms POST /attest fetches a URL from our vantage point and returns a signed, timestamped observation (hash, size, status, headers) a third party can verify. Paid per attestation over x402; reading one back is free. endpoint: `https://agent-exec.448c.org/attest` identifier: `urn:air:agent-exec.448c.org:service:attest` published to be found for: Prove what a URL said at a point in time. · Get a signed third-party observation of a web page. attestation evidence verification x402 attestation evidence verification x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.008 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec URL risk checkanswers in 137ms POST /check/url returns a verdict, a score and the reasons behind it for a URL or domain, assembled from public threat feeds. Flat fee over x402, charged only when a verdict comes back. endpoint: `https://agent-exec.448c.org/check/url` identifier: `urn:air:agent-exec.448c.org:service:check-url` published to be found for: Is this link safe for my agent to fetch? · Check a domain against public threat feeds before visiting it. risk-screening url-reputation safety x402 risk-screening url-reputation safety x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.02 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec URL watchesanswers in 140ms POST /watch polls a URL from our side until your predicate fires or the TTL ends, so a long wait costs no running process of your own. Priced by interval x TTL over x402; no account. endpoint: `https://agent-exec.448c.org/watch` identifier: `urn:air:agent-exec.448c.org:service:watch` published to be found for: Watch a URL until it changes and record when. · Poll an endpoint for a day without keeping a process alive. monitoring polling trigger x402 pay-per-call monitoring polling trigger trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0058 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec address risk checkanswers in 123ms POST /check/address returns a verdict, a score and the reasons behind it for a blockchain address, assembled from public risk feeds. Flat fee over x402, charged only when a verdict comes back. endpoint: `https://agent-exec.448c.org/check/address` identifier: `urn:air:agent-exec.448c.org:service:check-address` published to be found for: Is this wallet address risky before I pay it? · Screen a counterparty address against public risk feeds. risk-screening address-reputation compliance x402 risk-screening address-reputation compliance x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.02 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec code executionanswers in 341ms POST /execute runs a snippet in a sandbox and returns stdout, stderr and exit code. Paid per call over x402 (Base or Solana USDC); no account, no API key. endpoint: `https://agent-exec.448c.org/execute` identifier: `urn:air:agent-exec.448c.org:service:execute` published to be found for: Run this Python snippet somewhere isolated. · Execute untrusted code without provisioning a server. code-execution sandbox x402 pay-per-call code-execution sandbox x402 pay-per-call trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.001 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec dead-man intentsanswers in 55ms POST /deadman registers an irreversible intent with a lease and a verification probe, so a plan nobody confirmed becomes visible instead of silent. Paid per registration over x402; confirming and reading one are free. endpoint: `https://agent-exec.448c.org/deadman` identifier: `urn:air:agent-exec.448c.org:service:deadman` published to be found for: Register an intent that fires only if nothing confirms it. · Set a dead-man switch around an irreversible action. deadman-switch lease intent-registry x402 deadman-switch lease intent-registry x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0054 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec disposable email inboxanswers in 136ms POST /inbox rents a receive-only email address on our domain for 24 hours, read back by the paying wallet and extendable by paying again. Flat fee over x402; a one-hour inbox is free. endpoint: `https://agent-exec.448c.org/inbox` identifier: `urn:air:agent-exec.448c.org:service:inbox` published to be found for: Get a throwaway email address to receive a verification code. · Receive email as an agent without signing up anywhere. email disposable-inbox verification-code x402 email disposable-inbox verification-code x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.02 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec endpoint drift reportsanswers in 137ms POST /drift re-fetches a venue endpoint and diffs it against our archived baseline, so an API that changed under you is a report rather than a surprise. Paid per diff over x402; reading a stored report is free. endpoint: `https://agent-exec.448c.org/drift` identifier: `urn:air:agent-exec.448c.org:service:drift` published to be found for: Did this API change since the last time I read it? · Diff an endpoint against an earlier archived snapshot. change-detection diff monitoring x402 change-detection diff monitoring x402 trust identity: `did:web:agent-exec.448c.org`	application/json
agent-exec key claimsanswers in 392ms POST /claim wins a caller-named key for the paying wallet -- an accountless compare-and-set that stops two workers doing the same irreversible job twice. Paid per hold over x402; a 300-second lease is free. endpoint: `https://agent-exec.448c.org/claim` identifier: `urn:air:agent-exec.448c.org:service:claim` published to be found for: Stop two of my agents doing the same job twice. · Take a named lock shared across processes with no account. coordination distributed-lock compare-and-set x402 coordination distributed-lock compare-and-set x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0052 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec object storageanswers in 379ms POST /storage keeps a small object for a bought window (a day up to a year, renewable), readable back by the paying wallet. Paid per object over x402; no account. endpoint: `https://agent-exec.448c.org/storage` identifier: `urn:air:agent-exec.448c.org:service:storage` published to be found for: Park my state somewhere a successor process can read it. · Store an agent checkpoint for a year with no account. storage agent-memory checkpoint x402 pay-per-call storage agent-memory checkpoint trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0051 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec paid listing placementanswers in 65ms POST /listings/promote buys placement -- a day, a week or a month -- for a directory listing you already own. Paid over x402; entry in the directory is always free, payment only buys position. endpoint: `https://agent-exec.448c.org/listings/promote` identifier: `urn:air:agent-exec.448c.org:service:listings-promote` published to be found for: Pay to feature my service in an agent directory. · How do I buy placement for my x402 listing? promotion placement directory x402 pay-per-call promotion placement directory trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0667 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec rented DNS namesanswers in 135ms POST /dns rents a label under our domain for a year with A, AAAA, CNAME and TXT records you set; the paying wallet owns the name and can renew it. Paid per year over x402. endpoint: `https://agent-exec.448c.org/dns` identifier: `urn:air:agent-exec.448c.org:service:dns` published to be found for: Rent a DNS name I can point at my own host. · Get a subdomain with TXT records without an account. dns hostname txt-record x402 dns hostname txt-record x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.5 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec service directoryanswers in 391ms GET /listings is a free, unauthenticated directory of services that sell to agents; POST /listings adds one with a single signed request. Free -- payment buys placement, never entry. endpoint: `https://agent-exec.448c.org/listings` identifier: `urn:air:agent-exec.448c.org:service:listings` published to be found for: Which services can an agent pay for with x402? · List my service where agents can find it. directory discovery free directory discovery free trust identity: `did:web:agent-exec.448c.org`	application/json
agent-exec successor handoffanswers in 59ms POST /handoff deposits a typed briefing for the process that takes over from you and returns an id. Paid per handoff over x402; reading a briefing back is free and unauthenticated. endpoint: `https://agent-exec.448c.org/handoff` identifier: `urn:air:agent-exec.448c.org:service:handoff` published to be found for: Leave a briefing for whatever process runs after me. · Hand my working state to a successor agent with no account. handoff agent-memory continuity x402 pay-per-call handoff agent-memory continuity trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.0053 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec venue lane tableanswers in 139ms GET /placement/venues is a free, unauthenticated table of every permissionless agent venue we know, each with the lane it is in, its entry fee, and -- for the venues we would submit to on your behalf -- whether that submission is an api call or a crawl. POS... endpoint: `https://agent-exec.448c.org/placement/venues` identifier: `urn:air:agent-exec.448c.org:service:placement-venues` published to be found for: Which agent directories can a service be submitted to without a human? · Where do agents look for x402 services? listing venues directory free listing venues directory free trust identity: `did:web:agent-exec.448c.org`	application/json
agent-exec x402 payment deliveryanswers in 113ms POST /pay delivers an x402 authorization YOU signed to a seller exactly once and keeps an immutable receipt of the attempt. Flat fee over x402; we never sign on your behalf and never hold your key. endpoint: `https://agent-exec.448c.org/pay` identifier: `urn:air:agent-exec.448c.org:service:pay` published to be found for: Deliver a payment I already signed to an x402 seller exactly once. · Get a receipt proving an x402 payment was delivered. payment-delivery exactly-once receipt x402 payment-delivery exactly-once receipt x402 trust identity: `did:web:agent-exec.448c.org` payment: x402 · from $0.02 per call · base, solana (confirmed by the endpoint's own 402 answer)	application/json
agent-exec x402 payment manifestanswers in 384ms x402 Bazaar manifest for every one of agent-exec's 14 paid resources (execute, listings/promote, storage, claim, attest, handoff, deadman, drift, watch, check/address, check/url, pay, inbox, dns) -- price, network and pay-to address for each, no account or ... endpoint: `https://agent-exec.448c.org/.well-known/x402.json` identifier: `urn:air:agent-exec.448c.org:x402:manifest` published to be found for: Find a pay-per-call code execution endpoint that needs no API key. · What does agent-exec charge for POST /execute? x402 paid-capability compute trust identity: `did:web:agent-exec.448c.org`	application/json
agent-exec agent skillanswers in 380ms Installable SKILL.md: how a coding agent buys code execution from agent-exec. endpoint: `https://agent-exec.448c.org/.well-known/agent-skills/agent-exec/SKILL.md` identifier: `urn:air:agent-exec.448c.org:skill:agent-exec` published to be found for: Install a skill for running untrusted code from an agent harness. · Is there an agent-skill for buying code execution from agent-exec? agent-skill trust identity: `did:web:agent-exec.448c.org`	application/ai-skill+md

Source: https://agent-exec.448c.org/.well-known/ard.json, this publisher's own file. Identifiers are reproduced exactly as published. Of the resources listed, 23 have been probed for reachability. "Answers" and "no response" describe only whether an endpoint replied when last probed: services go down and come back, and an entry is demoted rather than removed. None of this is a trust, quality or safety rating.

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