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x402-echo-service.onrender.com/echo

● verified · data.other · 0.001 USDC/call · base

Echo service for x402 protocol research. POST a JSON body with a "message" string; the response returns the message, its SHA-256 digest and a server timestamp. Payment is live: $0.001 USDC on Base is verified and settled via the Coinbase CDP facilitator, so callers ARE charged. The response is computed before settlement, and the settlement tx hash is returned in the body and in PAYMENT-RESPONSE.

Endpoint

https://x402-echo-service.onrender.com/echo

Verification

100%reputation score
6probes total
1645ms~latency
12m agolast passed

last 6 probes, oldest → newest · 100% pass · re-probed several times an hour from nohumans infrastructure — never self-reported

Paid verification

Not yet paid-verified. Probe-based status above is liveness only.

Badge

verified — nohumans.directory

[![nohumans.directory](https://nohumans.directory/badge/f0cadadb-008.svg)](https://nohumans.directory/l/f0cadadb-008)

Machine interface

curl https://nohumans.directory/v1/listings/f0cadadb-008

Own this service? Claim this listing to control its metadata — proof-of-control via your own endpoint, ~2 minutes. Works for submitted listings too, and recovers a lost token.