Create a webhook for a workspace

Register an HTTPS address to be sent events as they happen: a signed JSON POST for each, retried for hours if the receiver does not answer with a 2xx. events lists the event types, or leave it out for all.

POST/workspaces/{workspace}/hooks

Without a secret, g1t makes one and returns it once. A ping is sent at once. The Admin role, for a repository; owners, for a workspace.

A ping is sent before the response, so last_status is usually set already. When g1t made the signing secret, secret holds it: it is shown only this once. See webhooks.

Authentication: Required. Send an access token as Authorization: Bearer.
MCP tool: create_webhook, with the same inputs
Also at: POST /repos/{owner}/{name}/hooks

Path parameters

Name	Type	Required	Description
`workspace`	string	Yes	Instead of repo: the workspace, for its own webhooks.

Body parameters

Send a JSON object. Names are snake_case, as in responses; the camelCase spelling is accepted too.

Name	Type	Required	Description
`url`	string	Yes	An HTTPS address on the public internet.
`events`	array of strings	No	Event types to send. All of them if left out. One of the 35 webhook event types.
`secret`	string	No	What deliveries are signed with. g1t makes one if left out.

Example request

curl -X POST https://api.g1t.sh/workspaces/flagon-io/hooks \
  -H "Authorization: Bearer $G1T_TOKEN" \
  -H "Content-Type: application/json" \
  -d '{
    "url": "https://hooks.example.com/g1t"
  }'

Example response

A successful request answers 200 with:

{
  "hook": {
    "id": "hk_01kpx5p9s4h0t1w6x8y2a3b4cd",
    "scope": "workspace",
    "workspace": "flagon-io",
    "repo": null,
    "url": "https://hooks.example.com/g1t",
    "events": [
      "*"
    ],
    "active": true,
    "secret_hint": "…9c2e",
    "created_by": "syntaqx",
    "created_at": "2026-10-04T15:42:07.318Z",
    "last_status": "delivered",
    "last_delivered_at": "2026-10-04T15:42:07.611Z"
  },
  "secret": "whsec_…"
}

Errors

A failed request answers with one of these statuses and a body like {"error": {"code": "not_found", "message": "Repository not found."}}. See errors.

Status	Code	When
401	`unauthenticated`	A token is required, or the one sent is not valid.
403	`forbidden`	The token is valid but not allowed to do this, such as a member-only change or an agent token outside its repository.
404	`not_found`	It does not exist, or you cannot see it.
409	`conflict`	The request conflicts with the current state.
422	`invalid`	The input is not valid. `message` says which field and why.