List deliveries
⚠️
Preview — this feature is being built; the design below is the spec.
GET https://app.syntic.ai/v1/webhooks/{webhook_id}/deliveriesReturn 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
| Header | Required | Value |
|---|---|---|
Authorization | Yes | Bearer <key>: a private inference key (sk_live_...). See Authentication. |
syntic-beta | Yes, while in preview | webhooks-2026-11-01. Without it the call fails with 400 beta_required. See Versioning. |
Path parameters
| Parameter | Type | Description |
|---|---|---|
webhook_id | string | The webhook id, starting with whk_. |
Query parameters
| Parameter | Type | Default | Description |
|---|---|---|---|
limit | integer | 20 | 1 to 100. |
after_id | string | Next page. | |
before_id | string | Previous page. | |
event_type | string | Only attempts for this event type. | |
succeeded | boolean | false 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"
}| Field | Type | Description |
|---|---|---|
event_id | string | Same as the syntic-event-id header on the delivery. |
attempt | integer | 1 for the first try, counting up through retries. |
status_code | integer or null | Your endpoint’s status, or null when unreachable. |
error | string or null | timeout, connection_failed, tls_error or non_2xx. |
next_attempt_at | string or null | When 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:
| Status | type | code | When |
|---|---|---|---|
| 400 | invalid_request_error | beta_required | The syntic-beta header is missing. |
| 404 | not_found_error | webhook_not_found | No webhook with that id in this workspace. |
| 401 | authentication_error | invalid_api_key | The key is missing, unknown, revoked or expired. |
| 429 | rate_limit_error | rate_limited | Too many requests; wait for Retry-After. See Rate-limit headers. |
Related
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