API referenceWebhooksList deliveries

List deliveries

⚠️
Preview — this feature is being built; the design below is the spec.
GET https://app.syntic.ai/v1/webhooks/{webhook_id}/deliveries

Return the delivery log for an endpoint, newest first: one entry per attempt, with the event, the HTTP status your endpoint returned and how long it took. The log keeps 30 days.

For how this fits into a full workflow, see Webhooks.

Headers

HeaderRequiredValue
AuthorizationYesBearer <key>: a private inference key (sk_live_...). See Authentication.
syntic-betaYes, while in previewwebhooks-2026-11-01. Without it the call fails with 400 beta_required. See Versioning.

Path parameters

ParameterTypeDescription
webhook_idstringThe webhook id, starting with whk_.

Query parameters

ParameterTypeDefaultDescription
limitinteger201 to 100.
after_idstringNext page.
before_idstringPrevious page.
event_typestringOnly attempts for this event type.
succeededbooleanfalse lists failed attempts only.

Response

200 OK, Content-Type: application/json

{
  "data": [
    {
      "id": "dlv_01JCB2M4P6R8T0V2X4Z6",
      "object": "webhook_delivery",
      "event_id": "evt_01JCA5D7F9H1K3M5P7R9",
      "event_type": "batch.completed",
      "attempt": 3,
      "status_code": 503,
      "succeeded": false,
      "duration_ms": 10000,
      "error": "timeout",
      "created_at": "2026-11-05T10:35:00Z",
      "next_attempt_at": "2026-11-05T12:35:00Z"
    }
  ],
  "has_more": false,
  "first_id": "dlv_01JCB2M4P6R8T0V2X4Z6",
  "last_id": "dlv_01JCB2M4P6R8T0V2X4Z6"
}
FieldTypeDescription
event_idstringSame as the syntic-event-id header on the delivery.
attemptinteger1 for the first try, counting up through retries.
status_codeinteger or nullYour endpoint’s status, or null when unreachable.
errorstring or nulltimeout, connection_failed, tls_error or non_2xx.
next_attempt_atstring or nullWhen the next retry is due, or null when retries are over.

Examples

curl -sS "https://app.syntic.ai/v1/webhooks/whk_01JCA4C6E8G0J2L4N6Q8/deliveries?succeeded=false&limit=50" \
  -H "Authorization: Bearer $SYNTIC_API_KEY" \
  -H "syntic-beta: webhooks-2026-11-01"

Errors

Errors use the error envelope and carry a request_id. Codes specific to this operation:

StatustypecodeWhen
400invalid_request_errorbeta_requiredThe syntic-beta header is missing.
404not_found_errorwebhook_not_foundNo webhook with that id in this workspace.
401authentication_errorinvalid_api_keyThe key is missing, unknown, revoked or expired.
429rate_limit_errorrate_limitedToo many requests; wait for Retry-After. See Rate-limit headers.
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