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.

11declared resources
11with a callable endpoint
11answering of 11 checked
0verified 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-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 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 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 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 x402 payment manifestanswers in 384ms x402 Bazaar manifest for every one of agent-exec's nine paid resources (execute, listings/promote, storage, claim, attest, handoff, deadman, drift, watch) -- price, network and pay-to address for each, no account or API key required. 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, 11 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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