7 services carry this tag in their source record. Tags come from the provider, not from us — a tag is a claim about what the service does, not proof that it does it well.
Fetch one web page and return its main content as clean Markdown with title and word count, extracted server-side. Private and loopback targets are refused. Use this when an agent needs to read a page inside a workflow w...
Ping, x402 payment test. A paid round-trip check: returns pong and the server time. Use to test that an x402 wallet, client or MCP setup can pay and receive a result.
Supporting meta: THIS origin continuity (routes, prices, last signal date, archive day_count, health). Secondary to Signal go-to SKUs.
Health check. Get ok, the server time, and a signed Ed25519 receipt you can check with the published key. Optional ?echo= comes back in the body. $0.005 USDC. Included in the hour pass. Includes a signed Ed25519 receipt...
Detect material public DNS answer changes with a deterministic hash. TTL-only changes do not count and no arbitrary resolver or AXFR operation is exposed. Base mainnet USDC
Which agents registered on Arc actually answer. Every endpoint every agent lists in its ERC-8004 registration file (web, A2A, MCP, x402, the file itself) is called once an hour through an address-checked fetcher: A2A car...
Health check & verify endpoint uptime: deterministic x402 verify, health status check, MCP health verify, and JSON schema verify ($0.50 USDC). Input: url or target parameter.