Phone & voice · Branded Calling

Attach numbers to a verified identity

Attaches numbers to a verified identity.

POSThttps://api.pozy.ai/v1/branded-calling/identities/{id}/numbers
attachBrandedCallingNumbers

Guide: Branded calling

Request

Send your API key as Authorization: Bearer pz_live_.... Read-only keys cannot call it. Keys with the telephony resource group disabled get 403 resource_group_disabled. Authentication

Path parameters

NameTypeNotes
idrequiredstring

Request body

application/json, required

  • phoneNumberIdsarray of stringrequired

    At least 1 item. Up to 15 items.

  • signatureobjectrequired
    • imageBase64stringrequired
    • signerNamestring

      Up to 255 characters.

Example

curl -X POST "https://api.pozy.ai/v1/branded-calling/identities/6bfebd43ddc270f6d2c56fc5/numbers" \
  -H "Authorization: Bearer $POZY_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "phoneNumberIds": [
    "+14155550123"
  ],
  "signature": {
    "imageBase64": "string"
  }
}'

Response

201 on success

  • numbersarray of object
    • phoneNumberIdstring
    • phoneNumberstring
    • statusstring

      One of submitted, in_review, verified, unsuccessful, suspended, expired, permanently_rejected.

    • rejectionReasonobject

      Can be null.

      4 child fields
      • codestring
      • titlestring
      • detailstring
      • messagestring

        Can be null.

    • verifiedAtstring (date-time)

      Can be null.

    • addedAtstring (date-time)

      Can be null.

201 response
{
  "numbers": [
    {
      "phoneNumberId": "698fba0989716df44adb771f",
      "phoneNumber": "+14155550123",
      "status": "submitted",
      "rejectionReason": {
        "code": "string",
        "title": "Launch day",
        "detail": "string",
        "message": "Hello from Pozy"
      },
      "verifiedAt": "2026-10-02T09:00:00.000Z",
      "addedAt": "2026-10-02T09:00:00.000Z"
    }
  ]
}

Errors

Errors use one shape: { error, type, code, param?, details? }. The ones you are most likely to see here:

400invalid_request_errorA parameter or body field is missing or invalid. param names it.
401authentication_errorThe API key is missing, revoked or expired.
403permission_errorThe key is read-only, scoped to other profiles, or has this resource group disabled.
404not_foundNothing with that id exists in your workspace.
429rate_limit_errorToo many requests this minute. Wait for Retry-After seconds.

Every code is listed in Errors.

More in Branded Calling