echo.queryzero.net

Credential Echo Service

Test your BBS+ agent credentials for free. Send a proof, see exactly what the verifier sees.

Usage

curl -X POST https://echo.queryzero.net/echo \
  -H "Content-Type: application/json" \
  -H "X-Agent-Credential: <base64 proof>" \
  -d '{"wallet_address": "0x..."}'

Returns: proof validity, disclosed claims with labels, wallet comparison, and tips.

For Agents

Full documentation: /llms.txt

Get a Credential

Don't have one yet? queryzero.net issues BBS+ agent credentials with selective disclosure.