POST /v1/delivery/unsubscribe - SEC API for AI

curl -X POST \
  -H "x-api-key: $SECAPI_API_KEY" \
  -H "secapi-version: 2026-03-19" \
  -H "content-type: application/json" \
  -d '{}' \
  "https://api.secapi.ai/v1/delivery/unsubscribe?token=delivery_unsubscribe_example"

{
  "requestId": "req_2ZK8Q1W9F4M6P7R3"
}

Unsubscribe from monitor email delivery (RFC 8058 one-click compatible)

Audience: application and coding agent.

Coverage and source scope

Anonymous endpoint. Token may be supplied in form-encoded body OR query string. When the body includes List-Unsubscribe=One-Click, the response is 204 No Content per RFC 8058. Idempotent — repeated calls with the same token return the same result.

Canonical metadata

requestId
traceparent

Example request

curl -X POST \
  -H "x-api-key: $SECAPI_API_KEY" \
  -H "secapi-version: 2026-03-19" \
  -H "content-type: application/json" \
  -d '{}' \
  "https://api.secapi.ai/v1/delivery/unsubscribe?token=delivery_unsubscribe_example"

Example response

{
  "requestId": "req_2ZK8Q1W9F4M6P7R3"
}

Give this prompt to your agent

Failure posture

treat non-2xx responses as contract-aware failures, not free-form errors
preserve requestId and traceparent in logs and downstream reports
if provenance or freshness metadata is present, return it unchanged so trust is not lost in the handoff