project.* events

A place a creator picked on a connector becomes a resource of a project.

When this fires

A creator links a place from a connector: a channel, group or supergroup from the bot's picker, or any connector's own picker answering a link request. The connector writes the resource row and this event announces it. This creates the resource row; no project.resource.created precedes it.

Caveats

  • Re-linking a place after an unlink creates a new resource row. The project.resource.linked you receive carries a different resource_id than the earlier project.resource.unlinked, and the unlinked row remains behind with space: null.
  • Linking the same place to the same project twice announces nothing the second time: the connector's write is idempotent and answers the existing resource.
  • A manual perk cannot be linked; it has no underlying place, so its kind is manual and it arrives through project.resource.created.

Related events

  • project.resource.unlinked: paired transition.
  • project.resource.created: the separate REST / MCP path for manual perks; not a predecessor of this event.
postWebhookproject.resource.linked

Headers

SB-Signaturestring required

t=<unix seconds>,v1=<hex>: the HMAC-SHA256 of "<t>.<raw body>" under the endpoint's secret. Verify it before acting, and refuse a t more than 300 seconds from now. During a secret rotation a v0= signature under the previous secret may precede v1=.

SB-Event-Idstring required

The event's ULID, bare. The envelope's id is the same ULID prefixed evt_, so strip the prefix before comparing. Deduplicate on it: a retry carries the same id.

SB-Event-Namestring required

The event name, the same as the envelope's type.

Content-Typestring required

Always application/json.

User-Agentstring required

Always Subscriby-Webhooks/1.0.

Payload

idstring required

A ULID unique to the event, prefixed evt_. Every retry carries the same id, so it is the key to deduplicate on.

type'project.resource.linked' required

The event name, always project.resource.linked here.

created_atstring date-time required

When the event was emitted, server time, ISO 8601.

api_versionstring required

The contract version of the payload shape, 2026-05-01 today. A breaking change to a shape ships under a new version.

project_idstring uuid nullable required

The project the event belongs to; null for team-scoped and billing events.

Response

Your endpoint acknowledged the delivery. Any 2xx status within 30 seconds marks it delivered; the response body is ignored.

Changes

Webhooks have no change history: a webhook is keyed by its event name rather than a path and method, so no recorded change can name it.