> ## Documentation Index > Fetch the complete documentation index at: https://help.wotnot.io/llms.txt > Use this file to discover all available pages before exploring further. # Add domain data source > Adds a website domain, such as `https://wotnot.io`, to an existing knowledge base as a data source. To add specific pages instead, use Add URL data sources. ## OpenAPI ````yaml POST /v1/ai/knowledge-base/{knowledge_base_id}/data-sources/domain openapi: 3.1.0 info: title: WotNot API version: 1.0.0 description: 'WotNot API: Add domain data source.' servers: - url: https://api.wotnot.io description: Production security: - bearerAuth: [] paths: /v1/ai/knowledge-base/{knowledge_base_id}/data-sources/domain: post: summary: Add domain data source description: >- Adds a website domain, such as `https://wotnot.io`, to an existing knowledge base as a data source. To add specific pages instead, use Add URL data sources. operationId: addDomainDataSource parameters: - name: knowledge_base_id in: path required: true description: The ID of the knowledge base to add the domain to. schema: type: string requestBody: required: true description: The domain to add and how to handle it. content: application/json: schema: type: object required: - type - url - exclude_urls - refresh_frequency properties: type: type: string description: The kind of data source. Set it to `domain`. example: domain url: type: string format: uri description: >- The website to add. It must be a valid web address, for example `https://wotnot.io`. example: https://wotnot.io exclude_urls: type: string description: >- Pages on the domain to leave out. The example sends an empty value (`""`). example: '' refresh_frequency: type: - string - 'null' description: >- How often the data source is refreshed. The example sends `null`. example: null example: type: domain url: https://wotnot.io exclude_urls: '' refresh_frequency: null responses: '200': description: Returns `ok` set to `true` with a `domain_id` and a `request_id`. content: application/json: schema: type: object required: - ok - domain_id - request_id properties: ok: type: boolean description: '`true` when the request worked. Errors return `false`.' example: true domain_id: type: integer description: The ID of the domain you added. example: 8 request_id: type: string description: An ID for this request. example: 3QWuobWJE3jF065037422196qAdTZ2Ct example: ok: true domain_id: 8 request_id: 3QWuobWJE3jF065037422196qAdTZ2Ct '400': description: >- The domain couldn't be added. The `message` says why, for example a URL limit was reached or `url` isn't a valid web address. content: application/json: schema: oneOf: - $ref: '#/components/schemas/CodedError' title: Error with code - $ref: '#/components/schemas/ValidationError' title: Validation error examples: url_limit: summary: URL limit reached value: message: Maximum urls allowed 4 ok: false error: BAD_REQUEST code: BAD_REQUEST status: 400 invalid_url: summary: Invalid URL value: error: BAD_REQUEST ok: false status: 400 message: - message: '"url" must be a valid uri' path: - url '401': $ref: '#/components/responses/FeatureNotAvailable' components: schemas: CodedError: type: object description: An error with a short code that says what went wrong. required: - ok - message - error - code properties: ok: type: boolean description: Always `false` when something went wrong. example: false message: type: string description: What went wrong, in plain words. example: Please reach out to support to use this feature error: type: string description: >- A short error code in capital letters, for example `UNAUTHORIZED_FEATURE`. Check this in your code to tell errors apart. example: UNAUTHORIZED_FEATURE code: type: string description: A code for the result. In these examples it matches `error`. example: UNAUTHORIZED_FEATURE status: type: integer description: >- The HTTP status code, repeated in the body. Not every error includes it. example: 401 ValidationError: type: object description: Returned when one or more fields in the request body are invalid. required: - error - ok - status - message properties: error: type: string description: '`BAD_REQUEST` for this kind of error.' example: BAD_REQUEST ok: type: boolean description: Always `false` when something went wrong. example: false status: type: integer description: The HTTP status code, repeated in the body. example: 400 message: type: array description: A list of problems with the request, one item per problem. items: type: object required: - message - path properties: message: type: string description: >- What is wrong with this field, for example `"url" must be a valid uri`. example: '"url" must be a valid uri' path: type: array description: >- Where the problem is in your request body. For example, `["urls", 0]` means the first item in `urls`. items: type: - string - integer responses: FeatureNotAvailable: description: >- This feature isn't available on your account. Contact WotNot support to use it. content: application/json: schema: $ref: '#/components/schemas/CodedError' example: message: Please reach out to support to use this feature ok: false error: UNAUTHORIZED_FEATURE code: UNAUTHORIZED_FEATURE status: 401 securitySchemes: bearerAuth: type: http scheme: bearer description: >- All of WotNot's APIs use Bearer token authentication. Send your account token as `Bearer `. You can find it in Settings > Account Settings > Developer. Keep it on your server: anyone who has it can call the API as your account. ```` This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.