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

# List supported DIR document types

> Reference list of `document_type` values accepted by `DirCreateRequest.documents[].document_type` and the infringement-contest endpoint. Each entry has a stable `short_name` (used in API calls) and a customer-facing description.



## OpenAPI

````yaml https://telnyx-openapi-ng.s3.us-east-1.amazonaws.com/branded-calling/dirs.yml get /dir/document_types
openapi: 3.1.0
info:
  title: Telnyx Branded Calling Display Identity Records API
  version: 2.0.0
  description: >-
    Create and manage Display Identity Records (DIRs) — your branded caller
    identity — and submit them for vetting.
  contact:
    email: support@telnyx.com
servers:
  - url: https://api.telnyx.com/v2
security:
  - bearerAuth: []
paths:
  /dir/document_types:
    get:
      tags:
        - Reference Data
      summary: List supported DIR document types
      description: >-
        Reference list of `document_type` values accepted by
        `DirCreateRequest.documents[].document_type` and the
        infringement-contest endpoint. Each entry has a stable `short_name`
        (used in API calls) and a customer-facing description.
      operationId: listDocumentTypes
      responses:
        '200':
          description: List of supported document types.
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/DocumentTypeReferenceList'
              example:
                data:
                  - short_name: letter_of_authorization
                    description: >-
                      Signed authorization from the DIR owner permitting Telnyx
                      to register the DIR and its associated numbers on their
                      behalf
                  - short_name: business_registration
                    description: >-
                      Official Secretary of State (or equivalent) registration
                      showing the legal entity exists and is in good standing
                meta:
                  total_pages: 1
                  total_results: 2
                  page_number: 1
                  page_size: 20
        default:
          $ref: '#/components/responses/branded-calling_GenericErrorResponse'
        4XX:
          $ref: '#/components/responses/branded-calling_GenericErrorResponse'
      x-codeSamples:
        - lang: JavaScript
          source: |-
            import Telnyx from 'telnyx';

            const client = new Telnyx({
              apiKey: process.env['TELNYX_API_KEY'], // This is the default and can be omitted
            });

            const response = await client.dir.listDocumentTypes();

            console.log(response.data);
        - lang: Python
          source: |-
            import os
            from telnyx import Telnyx

            client = Telnyx(
                api_key=os.environ.get("TELNYX_API_KEY"),  # This is the default and can be omitted
            )
            response = client.dir.list_document_types()
            print(response.data)
        - lang: Go
          source: "package main\n\nimport (\n\t\"context\"\n\t\"fmt\"\n\n\t\"github.com/team-telnyx/telnyx-go\"\n\t\"github.com/team-telnyx/telnyx-go/option\"\n)\n\nfunc main() {\n\tclient := telnyx.NewClient(\n\t\toption.WithAPIKey(\"My API Key\"),\n\t)\n\tresponse, err := client.Dir.ListDocumentTypes(context.TODO())\n\tif err != nil {\n\t\tpanic(err.Error())\n\t}\n\tfmt.Printf(\"%+v\\n\", response.Data)\n}\n"
        - lang: Java
          source: |-
            package com.telnyx.sdk.example;

            import com.telnyx.sdk.client.TelnyxClient;
            import com.telnyx.sdk.client.okhttp.TelnyxOkHttpClient;
            import com.telnyx.sdk.models.dir.DirListDocumentTypesParams;
            import com.telnyx.sdk.models.dir.DirListDocumentTypesResponse;

            public final class Main {
                private Main() {}

                public static void main(String[] args) {
                    TelnyxClient client = TelnyxOkHttpClient.fromEnv();

                    DirListDocumentTypesResponse response = client.dir().listDocumentTypes();
                }
            }
        - lang: Ruby
          source: |-
            require "telnyx"

            telnyx = Telnyx::Client.new(api_key: "My API Key")

            response = telnyx.dir.list_document_types

            puts(response)
        - lang: PHP
          source: >-
            <?php


            require_once dirname(__DIR__) . '/vendor/autoload.php';


            use Telnyx\Client;

            use Telnyx\Core\Exceptions\APIException;


            $client = new Client(apiKey: getenv('TELNYX_API_KEY') ?: 'My API
            Key');


            try {
              $response = $client->dir->listDocumentTypes();

              var_dump($response);
            } catch (APIException $e) {
              echo $e->getMessage();
            }
        - lang: CLI
          source: |-
            telnyx dir list-document-types \
              --api-key 'My API Key'
components:
  schemas:
    DocumentTypeReferenceList:
      type: object
      required:
        - data
        - meta
      properties:
        data:
          type: array
          items:
            $ref: '#/components/schemas/DocumentTypeReference'
        meta:
          $ref: '#/components/schemas/branded-calling_PaginationMeta'
    DocumentTypeReference:
      type: object
      description: Single supported document type.
      properties:
        short_name:
          type: string
          description: Stable identifier passed to `Document.document_type`.
          example: letter_of_authorization
        description:
          type: string
          example: >-
            Signed authorization from the DIR owner permitting Telnyx to
            register the DIR and its associated numbers on their behalf
    branded-calling_PaginationMeta:
      type: object
      required:
        - total_pages
        - total_results
        - page_number
        - page_size
      properties:
        total_pages:
          type: integer
          example: 3
          description: Total number of pages available given the current `page_size`.
        total_results:
          type: integer
          example: 42
          description: Total number of items across all pages (excludes soft-deleted rows).
        page_number:
          type: integer
          example: 1
          description: >-
            1-based index of this page. Echoes the `page[number]` query
            parameter (default `1`).
        page_size:
          type: integer
          example: 20
          description: Number of items returned in this page's `data` array. Capped at 250.
      description: >-
        JSON:API pagination metadata returned with every paginated list
        response. Page numbering is 1-based. `page_size` reports the number of
        items actually returned in `data` for this page; the requested size is
        taken from the `page[size]` query parameter.
    branded-calling_Errors:
      type: object
      required:
        - errors
      properties:
        errors:
          type: array
          items:
            $ref: '#/components/schemas/branded-calling_Error'
          description: List of one or more error entries. Order is not significant.
      description: >-
        Canonical Telnyx error envelope. Returned on every 4xx and 5xx response
        from this service. `errors` is non-empty; multiple entries indicate
        multiple distinct problems with the same request (e.g. one entry per
        invalid phone number on a bulk operation).
    branded-calling_Error:
      type: object
      required:
        - code
        - title
        - detail
        - meta
      properties:
        code:
          type: string
          example: '10005'
          description: >-
            Stable numeric Telnyx error catalog id. See `meta.url` for the full
            catalog entry.
        title:
          type: string
          example: Invalid parameters
          description: >-
            Short human-readable category, e.g. `Bad Request`, `Duplicate
            resource`, `Not Found`, `Forbidden`. Treat as advisory only - the
            stable identifier is `code`.
        detail:
          type: string
          example: field required
          description: >-
            Context-specific message describing what went wrong on this
            particular request. May embed offending values; do not rely on it
            for programmatic matching - branch on `code`.
        meta:
          type: object
          required:
            - url
          properties:
            url:
              type: string
              format: uri
              example: https://developers.telnyx.com/docs/overview/errors/10005
            pending_check_ids:
              type: array
              items:
                type: string
                format: uuid
              description: >-
                Set on `422 vetting_checks_incomplete` responses from
                `/admin/dir/{id}/approve` and
                `/admin/phone-number-batches/approve`. Lists the still-pending
                vetting check ids.
            pending_check_codes:
              type: array
              items:
                type: string
              description: >-
                Codes of the pending vetting checks (e.g.
                `loa_signature_valid`).
            pending_check_labels:
              type: array
              items:
                type: string
              description: Human-readable labels of the pending vetting checks.
          description: >-
            Carries `url` linking to the Telnyx error catalog entry for this
            `code`. Useful for forwarding the user to documentation.
        source:
          type: object
          description: Optional pointer at the offending field of the request.
          properties:
            pointer:
              type: string
              example: /body/legal_name
            parameter:
              type: string
              example: page[size]
      description: >-
        A single entry in the canonical Telnyx error envelope. `code` is the
        stable Telnyx error catalog id; the human-readable explanation lives at
        `meta.url`. `detail` is a context-specific message; `source.pointer`
        (when present) names the offending field of the request.
  responses:
    branded-calling_GenericErrorResponse:
      description: >-
        An error occurred. The response carries the standard Telnyx error
        envelope.
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/branded-calling_Errors'
          examples:
            validation_error:
              summary: 422 - request body failed validation
              value:
                errors:
                  - code: '10005'
                    title: Invalid parameters
                    detail: field required
                    meta:
                      url: https://developers.telnyx.com/docs/overview/errors/10005
                    source:
                      pointer: /body/legal_name
            bad_request:
              summary: 400 - request rejected by a state guard
              description: >-
                Returned when the request itself is well-formed but the resource
                is in a state that disallows this action (e.g. updating a DIR
                while it is being vetted, or deleting an enterprise that still
                has DIRs in vetting).
              value:
                errors:
                  - code: '10015'
                    title: Bad Request
                    detail: Cannot update DIR in 'verified' status
                    meta:
                      url: https://developers.telnyx.com/docs/overview/errors/10015
            not_found:
              summary: 404 - resource does not exist or is not yours
              value:
                errors:
                  - code: '10009'
                    title: Resource not found
                    detail: Enterprise not found.
                    meta:
                      url: https://developers.telnyx.com/docs/overview/errors/10009
            conflict:
              summary: 409 - request conflicts with current resource state
              value:
                errors:
                  - code: '10021'
                    title: Resource in use
                    detail: >-
                      DIR has 1 active infringement claim(s). Resolve the claim
                      before making this change.
                    meta:
                      url: https://developers.telnyx.com/docs/overview/errors/10021
  securitySchemes:
    bearerAuth:
      scheme: bearer
      type: http

````