SendlySendly
API ReferenceEvents

Record an event

POST
/api/v1/events

Records a custom event, optionally attached to a contact. Events drive segment membership and workflow triggers, so a matching enabled workflow starts as a result of this call.

contact_id must already exist in this project — unlike POST /api/track, this endpoint never creates contacts. Omit it for a project-level event.

Reserved system event names (email.*, contact.subscribed/unsubscribed, segment.*.entry/.exit) are rejected with 422: they are written by Sendly's own pipeline and accepting them from a caller would corrupt the series segments read.

This endpoint does NOT require an Idempotency-Key. Events are append-only and the highest-volume write on the surface; a duplicate is a data-quality question for the caller, not a money-path hazard.

Sending-only (pk_*) keys cannot record events — they hold the send capability and nothing else.

Requires the events:write scope — Record custom events for your contacts.

Authorization

AuthorizationBearer <token>

API key authentication. Use a sk_* (FULL) or pk_* (SENDING_ONLY) key as the bearer token. Public keys (pk_*) are restricted to the email-send endpoints and the self-serve list subscribe/unsubscribe pair; every other endpoint — event tracking included — answers 403 for them. In scope terms (used by /api/v1/* operations): FULL keys hold every scope; SENDING_ONLY keys hold only emails:send.

In: header

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

Body for POST /api/v1/events.

Response Body

application/json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

curl -X POST "https://example.com/api/v1/events" \  -H "Content-Type: application/json" \  -d '{    "name": "string"  }'
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "name": "string",
  "contact_id": "f245e2a3-e141-4d41-912c-b1c1f5bd5598",
  "email_id": "8e6bf5ae-e456-4654-87f8-33e2156caffc",
  "payload": {
    "property1": null,
    "property2": null
  },
  "created_at": "2019-08-24T14:15:22Z"
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}
{
  "type": "http://example.com",
  "title": "string",
  "status": 0,
  "detail": "string",
  "instance": "string",
  "code": "string",
  "request_id": "string",
  "errors": [
    {
      "pointer": "string",
      "code": "string",
      "message": "string"
    }
  ]
}