---
title: "Replay an event to a webhook destination"
description: "Queues a retained event for an enabled, same-installation destination subscribed to its type. Requires events.read, webhooks.read, webhooks.write and the event-family grant. The event ID and body stay unchanged; dispatch uses a fresh signature timestamp. queued=false means an attempt is already sending. Repeated queued requests coalesce; receivers must deduplicate by event ID. Server credentials only. Application, installation, collection, and TEST/LIVE scope are resolved from the credential. Legacy collection webhook destinations are separate. TEST and LIVE events are isolated; neither event grants charging, booking or marketing authority."
---

`POST /v1/developer/events/{eventId}/replay`

**Operation ID:** `replayDeveloperEvent`

Queues a retained event for an enabled, same-installation destination subscribed to its type. Requires events.read, webhooks.read, webhooks.write and the event-family grant. The event ID and body stay unchanged; dispatch uses a fresh signature timestamp. queued=false means an attempt is already sending. Repeated queued requests coalesce; receivers must deduplicate by event ID. Server credentials only. Application, installation, collection, and TEST/LIVE scope are resolved from the credential. Legacy collection webhook destinations are separate. TEST and LIVE events are isolated; neither event grants charging, booking or marketing authority.

## Contract status

| Field | Value |
| --- | --- |
| Maturity | `beta` |
| Required capability | `webhooks.write` |
| Freshness class | `authenticated-state` |
| Quota cost | `1` |

All operations require a Kismet Developer Bearer credential. Collection and resource authority is resolved from the credential's installation grants; identifiers in the URL never grant access.

## Request parameters

| Name | In | Type | Required | Description |
| --- | --- | --- | --- | --- |
| `eventId` | path | string | yes |  |

## Request body

The request body is JSON. The canonical schema is:

```json
{
  "type": "object",
  "additionalProperties": false,
  "required": [
    "subscriptionId"
  ],
  "properties": {
    "subscriptionId": {
      "type": "string",
      "format": "uuid"
    }
  }
}
```

Minimal example:

```json
{
  "subscriptionId": "string"
}
```

## cURL

Set `KISMET_API_ORIGIN=https://api.ksmt.app` and configure `KISMET_DEVELOPER_API_KEY` in your environment. Run server-credential requests from your backend, not browser code.

```sh
curl --request POST \
  "$KISMET_API_ORIGIN/v1/developer/events/{eventId}/replay" \
  --header "Authorization: Bearer $KISMET_DEVELOPER_API_KEY" \
  --header "Accept: application/json" \
  --header "Content-Type: application/json" \
  --data '{"subscriptionId":"string"}'
```

## Responses

| Status | Meaning |
| --- | --- |
| 202 | Accepted for processing. See the response body for the current state. |
| 400 | Invalid request parameters or body. |
| 401 | Missing, invalid, expired, or inappropriate credential/session. |
| 403 | Credential lacks the required grant/capability, or an origin/CSRF check failed. |
| 404 | The authorized resource was not found. |
| 409 | Request conflicts with the installation environment or current state. |
| 429 | Rate limit or quota exceeded; inspect response metadata before retrying. |
| 503 | A required Kismet dependency is temporarily unavailable. |

### 202 response example

```json
{
  "deliveryId": "88888888-8888-4888-8888-888888888888",
  "queued": true
}
```

### 202 response schema

Content type: `application/json`. Required fields, nullable values, and nested structures are defined below.

<details>
<summary>View complete response schema</summary>

```json
{
  "type": "object",
  "properties": {
    "deliveryId": {
      "type": "string",
      "format": "uuid"
    },
    "queued": {
      "type": "boolean"
    }
  },
  "required": [
    "deliveryId",
    "queued"
  ],
  "additionalProperties": false
}
```

</details>

## Machine-readable sources

- [This page as Markdown](/api/reference/replay-developer-event.md)
- [Developer API OpenAPI v0.7.25](/openapi.json)