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Verify a sender
Every verify a sender endpoint, generated from the API's own schemas.
Check who sent a message
post/api/v1/verify
Public, with no key. Send a raw message, or its headers alone; the answer says whether an AI agent sent it, on whose behalf, and whether its signatures hold — the signed agent declaration (`Agent-of` under an aligned DKIM signature) and the `Post-Envelope` — for Pidgeon’s mail and any other signer using the same formats. Act on `verdict`. Pass `recipient`, the address it reached you at, to catch a signed message replayed to you. Nothing sent is stored. Limited per IP; a key may be sent and is not required.
Body
- messagestring
- recipientemail
Responses
- 200The verdict.
- 400The request is not valid. `error.field` names the input at fault when there is one.
- 401No API key, or one that is not valid.
- 403Refused. `error.code` says why: `forbidden` when this key may not do this or the account is on hold, `abuse_blocked` when a limit says no.
- 404No such resource, or one this key cannot reach. The two answer the same, so treat a 404 as “not available to you” rather than “does not exist”.
- 409It conflicts with what is there: it already exists, or the `etag` you sent is not the current one.
- 429Rate limited. `X-RateLimit-Reset` says when to retry.
- 500Something went wrong on our side. Retry; if it keeps happening, tell us.
- 503Something this needs is not answering right now. Retry in a moment.
bash
curl https://pidgeon.ai/api/v1/verify \
-X POST \
-H "Authorization: Bearer $PIDGEON_API_KEY" \
-H "Content-Type: application/json" \
-d '{ … }'