> ## Documentation Index
> Fetch the complete documentation index at: https://docs.pomerado.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Assign a phone number

> Gives a saved login a Pomerado phone number to receive its website's text-message sign-in codes, so sign-ins need no one to read them.

<Accordion title="Details">
  * Assigning again returns the same number.

  * Next, the person sets this number as the website account's phone for codes. Then call logins.verify\_sms\_number to check that codes arrive.

  * features.sms\_numbers on your account says whether you may assign one.

  * **Callers:** an API key, an MCP OAuth token or a Dashboard session.

  * **Permission:** `logins:manage`.

  * **Effect:** Creates or changes something.

  * **Errors:** [`not_found`](/errors#not_found), [`sms_number_not_allowed`](/errors#sms_number_not_allowed), [`sms_number_not_linked`](/errors#sms_number_not_linked), [`sms_number_cap_reached`](/errors#sms_number_cap_reached), [`sms_number_purchase_failed`](/errors#sms_number_purchase_failed), [`not_configured`](/errors#not_configured), and the [errors any request can get](/errors).
</Accordion>


## OpenAPI

````yaml /api-reference/openapi.json post /v1/logins/{id}/sms-number
openapi: 3.1.0
info:
  title: Pomerado API
  version: '1'
  description: >-
    Run and build website tools, follow their jobs, and manage logins, API keys
    and webhooks. Authenticate with a Pomerado API key (pom_…), an MCP OAuth
    token or a Dashboard session as a Bearer token.
servers:
  - url: https://api.pomerado.ai
security: []
tags:
  - name: account
    x-group: Account
  - name: api_keys
    x-group: API keys
  - name: connected_apps
    x-group: Connected apps
  - name: usage
    x-group: Usage
  - name: quota
    x-group: Quota
  - name: billing
    x-group: Billing
  - name: integrations
    x-group: Integrations
  - name: connect
    x-group: Connect
  - name: logins
    x-group: Saved logins
  - name: two_factor
    x-group: 2FA
  - name: login_access
    x-group: Login access
  - name: tools
    x-group: Tools
  - name: webhooks
    x-group: Webhooks
  - name: runs
    x-group: Runs
  - name: builds
    x-group: Builds
  - name: jobs
    x-group: Jobs
  - name: files
    x-group: Files
  - name: team
    x-group: Team
paths:
  /v1/logins/{id}/sms-number:
    post:
      tags:
        - two_factor
      summary: Assign a phone number
      description: >-
        Gives a saved login a Pomerado phone number to receive its website's
        text-message sign-in codes, so sign-ins need no one to read them.
      operationId: logins.assign_sms_number
      parameters:
        - name: id
          in: path
          required: true
          description: 'a saved login ID: login_ and 32 lowercase hex digits'
          schema:
            type: string
            examples:
              - login_0f8e2d1c4b3a49e8a7f6e5d4c3b2a190
      responses:
        '200':
          description: The login's number
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/SmsNumber'
        '400':
          description: invalid_request
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '401':
          description: unauthorized, reauthentication_required
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '403':
          description: sms_number_not_allowed, forbidden
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '404':
          description: not_found, sms_number_not_linked
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '500':
          description: internal_error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '501':
          description: not_configured
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
        '503':
          description: >-
            temporarily_unavailable, sms_number_cap_reached,
            sms_number_purchase_failed
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/Error'
      security:
        - bearer: []
components:
  schemas:
    SmsNumber:
      type: object
      required:
        - phone_number
        - status
        - linked_at
        - verified_at
        - verification
      properties:
        phone_number:
          type: string
        status:
          type: string
          enum:
            - linked
            - verified
        linked_at:
          type: string
        verified_at:
          anyOf:
            - type: string
            - type: 'null'
        verification:
          anyOf:
            - type: object
              required:
                - expires_at
                - code_received
                - code
              properties:
                expires_at:
                  type: string
                code_received:
                  type: boolean
                code:
                  anyOf:
                    - type: string
                    - type: 'null'
              additionalProperties: false
            - type: 'null'
      additionalProperties: false
    Error:
      type: object
      required:
        - error
      properties:
        error:
          type: object
          required:
            - code
            - message
            - retryable
            - docs_url
          properties:
            code:
              type: string
            message:
              type: string
            retryable:
              type: boolean
            docs_url:
              type: string
            details:
              type: object
              required: []
              properties: {}
              additionalProperties:
                $id: /schemas/unknown
          additionalProperties: false
      additionalProperties: false
  securitySchemes:
    bearer:
      type: http
      scheme: bearer

````

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