10 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.
Use when an agent needs base block number. Returns Fetch the current Base mainnet block number from redundant public RPCs and return structured JSON with source and freshness metadata. $0.002.
Returns the message you send, with its length and the server time. Use to test an x402 client, payment flow or agent tool wiring end to end.
Cheapest possible Base-mainnet x402 conformance call: settle $0.001 of USDC and receive payer identity, request echo and receipt. Built for agents testing wallets, Payment-Signature, facilitators and settlement. Try GET...
x402 test endpoint — live x402 test endpoint for testing an x402 client: the smallest possible paid round-trip that proves challenge parsing, USDC signing, facilitator settlement and retry. Use it to test x402 payments e...
Use when an agent needs x402 market totals. Returns market size: sellers listed by source and evidence (how many P0 has read itself), plus 30-day market totals from x402stats (CC BY 4.0), with attribution and a receipt
x402 payment E2E test endpoint (echoes query). Factual data only; not investment advice.
Is TCP port 7 (Echo) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers f...
Change watch for is port 7 open: runs the check, compares it with the result from your previous call for the same host (kept 90 days) and returns the current answer, changed true/false, the fields that changed with befor...
Bulk is port 7 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents th...
US facility environmental due-diligence: one cited JSON verdict fusing EPA compliance status, enforcement history, penalties, toxic releases and reported greenhouse gases, with a 0 to 100 environmental-risk score, for a...