> **Building with AI coding agents?** Install the authstack plugin with one command. This equips your agent with accurate Scalekit implementation patterns.
>
> **Recommended** (the `-y` flags skip prompts, so the command runs without an interactive terminal):
> ```bash
> npx -y @scalekit-inc/cli setup -y
> ```
>
> Global:
> ```bash
> npm install -g @scalekit-inc/cli
> scalekit setup -y
> ```
>
> Supports Claude Code, Cursor, GitHub Copilot, Codex + skills for other Agent Skills-compatible agents in `~/.agents/skills`.
> Skills: integrate-agentkit, implement-saaskit, add-mcp-oauth, implement-sso, implement-scim.
> [Full setup guide](https://docs.scalekit.com/dev-kit/build-with-ai/)

---

# Create a webhook URL (beta)

`POST /api/v1/connections/{connection_id}/trigger-ingress`

This endpoint is in beta. Its request and response may change.

Creates the webhook URL the app sends this connection's events to. Register the URL in your app's settings at the provider, then [set the signing secret](https://docs.scalekit.com/agentkit/reference/triggers/set-a-signing-secret/). Only a connection whose app has a webhook trigger can have one. If the connection already has a URL, it's returned unchanged, so retrying is safe. Keep the URL private.

**Path parameters**

| Name | Type | Required | Description |
| --- | --- | --- | --- |
| `connection_id` | string | Yes | ID of the connection, in this environment. Up to 64 characters. |

**Response (200)**

| Name | Type | Description |
| --- | --- | --- |
| `connection_id` | string | ID of the connection this webhook URL belongs to. |
| `id` | string | Unique identifier of the connection's webhook endpoint. |
| `masked_signing_secret` | string | The stored secret with all but its last four characters replaced, or every character replaced for a secret of 8 characters or fewer. Empty when none is configured. Enough to compare against the secret the provider's app configuration shows, and never enough to sign with. |
| `previous_signing_secret_expires_at` | string | When the previous secret stops being accepted even if the rotation is never confirmed: 24 hours after the rotation started. Absent when no rotation is in progress. |
| `rotation_in_progress` | boolean | Whether the previous signing secret is still accepted alongside the current one. True from the moment a different secret replaces a stored one until the rotation is confirmed, or until previous_signing_secret_expires_at passes. |
| `signing_secret_configured` | boolean | Whether a signing secret is stored. While false, every event sent to the URL is answered with 503 so the provider retries it, and the provider's own URL verification fails. |
| `signing_secret_rotation_id` | string | Identifies the latest signing-secret rotation; it increases by one each time a rotation starts. Zero when none has ever started. Pass this value to [Confirm a signing secret rotation](https://docs.scalekit.com/agentkit/reference/triggers/confirm-a-signing-secret-rotation/) to confirm this specific rotation. A value naming a rotation that a newer one has since replaced is refused rather than confirming the wrong rotation. |
| `url` | string | The URL to paste into the provider's app configuration as the event destination. It is built on your environment's domain, using its custom domain when one is set, and ends in a random token unique to this connection, so treat it as confidential. Returned whether or not a signing secret has been set. The URL accepts request bodies up to 1 MB and answers a larger one with 413. Until a signing secret is set it answers events with 503, so the provider retries them; an event that fails signature verification is answered with 400. |

**Errors**

- `400`: Invalid request, nothing created - connection_id is not a valid connection ID; the connection's provider publishes no webhook trigger, so it has no use for a webhook URL (error_code TRIGGER_INGRESS_NOT_APPLICABLE); or the provider's webhook trigger definitions are temporarily unavailable (error_code TRIGGER_INGRESS_DEFINITIONS_UNAVAILABLE)
- `404`: Not found - the connection does not exist in this environment, or Triggers isn't turned on for your environment
- `500`: Internal error - the webhook URL could not be created or read back; retry the request

**Request**

```bash
curl -sS -X POST \
  "$SCALEKIT_ENVIRONMENT_URL/api/v1/connections/conn_133400101014997214/trigger-ingress" \
  -H "Authorization: Bearer $TOKEN"
```

**Response**

```json
{
  "id": "tie_149528599802678310",
  "connection_id": "conn_133400101014997214",
  "url": "https://your-env.scalekit.dev/triggers/v1/q7Rk2mVx9TbL4nWc8YpZ3s",
  "signing_secret_configured": false,
  "masked_signing_secret": "",
  "rotation_in_progress": false,
  "signing_secret_rotation_id": "0"
}
```

**Python SDK:** `scalekit_client.actions.triggers.create_ingress_endpoint`

Create a connection's webhook URL, or return the existing one.

```python
scalekit_client.actions.triggers.create_ingress_endpoint(
    connection_id: str,
) -> TriggerIngressEndpoint
```

Example:

```python
result = scalekit_client.actions.triggers.create_ingress_endpoint(
    connection_id="conn_133400101014997214",
)
```

| Parameter | Type | Required | Description |
| --- | --- | --- | --- |
| `connection_id` | `str` | Yes | The connection (`conn_...`). |

Returns `TriggerIngressEndpoint`: The URL to paste into the provider's app configuration.


Part of [Triggers](https://docs.scalekit.com/agentkit/reference/triggers/) in the [AgentKit API reference](https://docs.scalekit.com/agentkit/reference/). Authentication: https://docs.scalekit.com/agentkit/reference/authentication.md. Errors and rate limits: https://docs.scalekit.com/agentkit/reference/errors.md. Pagination: https://docs.scalekit.com/agentkit/reference/pagination.md


---

## More Scalekit documentation

| Resource | What it contains | When to use it |
|----------|-----------------|----------------|
| [/llms.txt](/llms.txt) | Structured index with routing hints per product area | Start here — find which documentation set covers your topic before loading full content |
| [/llms-full.txt](/llms-full.txt) | Complete documentation for all Scalekit products in one file | Use when you need exhaustive context across multiple products or when the topic spans several areas |
| [sitemap-0.xml](https://docs.scalekit.com/sitemap-0.xml) | Full URL list of every documentation page | Use to discover specific page URLs you can fetch for targeted, page-level answers |