thesignup docs
APISignupsIdParticipantsPid

Cancel a registration

Removes a single participant row. Use this for organizer-driven cleanup (e.g. removing a duplicate or no-show). Participant-driven cancellation flows still go through the confirmation-token URL.

DELETE
/signups/{id}/participants/{pid}

Removes a single participant row. Use this for organizer-driven cleanup (e.g. removing a duplicate or no-show). Participant-driven cancellation flows still go through the confirmation-token URL.

Authorization

ApiKey
AuthorizationBearer <token>

Long-lived org-scoped API key. Generate one from your account dashboard. Pass as Authorization: Bearer sgn_live_….

In: header

Path Parameters

id*string
Formatuuid
pid*string
Formatuuid

Response Body

application/json

application/problem+json

application/problem+json

application/problem+json

application/problem+json

curl -X DELETE "https://example.com/signups/497f6eca-6276-4993-bfeb-53cbbbba6f08/participants/497f6eca-6276-4993-bfeb-53cbbbba6f08"
{
  "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
  "eventId": "d6703cc8-9e79-415d-ac03-a4dc7f6ab43c",
  "name": "string",
  "email": "user@example.com",
  "phone": "string",
  "quantityCommitted": 1,
  "timeSlotId": "10101627-b777-423f-a18f-6928a39dec43",
  "itemId": "f11b669d-7201-4c21-88af-d85092f0c005",
  "slotCustomFieldResponse": "string",
  "itemCustomFieldResponse": "string",
  "eventCustomFieldResponse": "string",
  "createdAt": "2019-08-24T14:15:22Z",
  "slot": {
    "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
    "title": "string",
    "startTime": "2019-08-24T14:15:22Z",
    "endTime": "2019-08-24T14:15:22Z"
  },
  "item": {
    "id": "497f6eca-6276-4993-bfeb-53cbbbba6f08",
    "name": "string"
  }
}
{
  "type": "https://thesignup.app/problems/not-found",
  "title": "Not found",
  "status": 404,
  "detail": "string",
  "code": "missing_credentials",
  "errors": [
    {
      "path": "string",
      "message": "string"
    }
  ],
  "cause": {
    "property1": null,
    "property2": null
  }
}
{
  "type": "https://thesignup.app/problems/not-found",
  "title": "Not found",
  "status": 404,
  "detail": "string",
  "code": "missing_credentials",
  "errors": [
    {
      "path": "string",
      "message": "string"
    }
  ],
  "cause": {
    "property1": null,
    "property2": null
  }
}
{
  "type": "https://thesignup.app/problems/not-found",
  "title": "Not found",
  "status": 404,
  "detail": "string",
  "code": "missing_credentials",
  "errors": [
    {
      "path": "string",
      "message": "string"
    }
  ],
  "cause": {
    "property1": null,
    "property2": null
  }
}
{
  "type": "https://thesignup.app/problems/not-found",
  "title": "Not found",
  "status": 404,
  "detail": "string",
  "code": "missing_credentials",
  "errors": [
    {
      "path": "string",
      "message": "string"
    }
  ],
  "cause": {
    "property1": null,
    "property2": null
  }
}

Register a participant POST

Anonymous-friendly. Works without an Authorization header — the link-share viral loop preserved. Anonymous calls are rate-limited per IP using the strict `anon` tier (60/min reads, 6/min writes, 200/day). Authenticated calls use the credential's tier as usual.

Publish a signup POST

Transitions status from `draft` to `published`. Idempotent — publishing an already-published signup is a no-op. Closed signups can't be republished (returns 409).