> ## Documentation Index > Fetch the complete documentation index at: https://docs.superu.ai/llms.txt > Use this file to discover all available pages before exploring further. # Create tool > Creates a callable tool for agents. ## OpenAPI ````yaml /api-reference/openapi.json post /tool openapi: 3.1.0 info: title: SuperU API description: >- Comprehensive API reference for SuperU voice agents, calls, tools, contacts, audiences, and knowledge bases. version: 1.0.0 servers: - url: https://voip-middlware.superu.ai description: Production security: - superUApiKey: [] tags: - name: Calls description: Create and analyze calls. - name: Agents description: Create, list, import, update, and delete agents. - name: Agent Versions description: Manage versions for existing agents. - name: Phone Numbers description: Fetch phone numbers available in your account. - name: Call Logs description: Retrieve call history with filters. - name: Tools description: Create and manage callable tools. - name: Folders description: Organize agents into folders. - name: Contacts description: Create and list contacts. - name: Audiences description: Create and manage audiences and contacts. - name: Knowledge Base description: Upload and manage knowledge bases. - name: Campaigns description: Create and manage outbound campaigns with automated workflows. paths: /tool: post: tags: - Tools summary: Create tool description: Creates a callable tool for agents. operationId: createTool requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ToolCreateRequest' example: name: Tool 1 type: apiRequest url: https://www.google.com description: hehe method: GET body: type: object properties: new: type: string description: '2' headers: type: object properties: new: type: string description: '2' timeoutSeconds: 20 description: Request body for Create tool. responses: '201': description: Tool created content: application/json: schema: $ref: '#/components/schemas/GenericResponse' example: tool_uuid: 0a425650-60ac-4fd4-9554-5579844ce3e5 user_id: user_32UrXxvrVxWSYp1dGLsPdElDtRt type: apiRequest createdAt: '2026-05-05T06:20:17.548305' updatedAt: '2026-05-05T06:20:17.548307' method: GET url: https://www.google.com name: Tool 1 description: hehe timeoutSeconds: 20 body: '{...}' headers: '{...}' messages: [] backoffPlan: type: fixed maxRetries: 0 baseDelaySeconds: 1 excludedStatusCodes: - 400 - 401 - 403 - 404 variableExtractionPlan: null rejectionPlan: null _id: 69f98c2185578cdac8d33010 '400': $ref: '#/components/responses/BadRequest' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' '500': $ref: '#/components/responses/InternalServerError' '501': $ref: '#/components/responses/NotImplemented' x-codeSamples: - lang: curl label: cURL source: |- curl --request POST \\ --url https://voip-middlware.superu.ai/tool \\ --header 'superU-Api-Key: YOUR_SUPERU_API_KEY' \\ --data '{ "name": "Tool 1", "type": "apiRequest", "url": "https://www.google.com", "description": "hehe", "method": "GET", "body": { "type": "object", "properties": { "new": { "type": "string", "description": "2" } } }, "headers": { "type": "object", "properties": { "new": { "type": "string", "description": "2" } } }, "timeoutSeconds": 20 }' - lang: python label: Python source: |- from superu import SuperU client = SuperU("YOUR_SUPERU_API_KEY") payload = { "name": "Tool 1", "type": "apiRequest", "url": "https://www.google.com", "description": "hehe", "method": "GET", "body": { "type": "object", "properties": { "new": { "type": "string", "description": "2" } } }, "headers": { "type": "object", "properties": { "new": { "type": "string", "description": "2" } } }, "timeoutSeconds": 20 } response = client.tools.create(**payload) print(response) components: schemas: ToolCreateRequest: allOf: - type: object required: - name - type - url - description - method properties: name: type: string description: Tool name example: Tool 1 type: type: string description: Tool type example: apiRequest url: type: string description: Request URL example: https://www.google.com description: type: string description: What the tool does example: hehe method: type: string description: HTTP method example: GET body: type: object description: Request body schema. additionalProperties: true example: type: object properties: new: type: string description: '2' headers: type: object description: Request header schema. additionalProperties: true example: type: object properties: new: type: string description: '2' timeoutSeconds: type: integer description: Request timeout in seconds example: 20 description: Tool Create Request schema. GenericResponse: type: object properties: status: type: string description: Indicates if the request was successful. example: success message: type: string description: A descriptive message about the result of the request. example: Request completed successfully data: type: object additionalProperties: true description: The payload of the response, if any. additionalProperties: true description: A generic response schema for successful API calls. ErrorResponse: type: object required: - message properties: status: type: string example: error description: Status value. message: type: string example: Invalid request payload description: Message value. error: type: string example: Bad Request description: Error value. code: type: string example: BAD_REQUEST description: Code value. additionalProperties: true description: Error Response schema. responses: BadRequest: description: Bad Request - invalid parameters or payload. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: status: error code: BAD_REQUEST message: Request validation failed. Unauthorized: description: Unauthorized - missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: status: error code: UNAUTHORIZED message: Invalid or missing superU-Api-Key. NotFound: description: Not Found - requested resource does not exist. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: status: error code: NOT_FOUND message: Resource not found. InternalServerError: description: Internal Server Error - unexpected backend error. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: status: error code: INTERNAL_SERVER_ERROR message: An unexpected server error occurred. NotImplemented: description: >- Not Implemented - this action is not available in the current deployment. content: application/json: schema: $ref: '#/components/schemas/ErrorResponse' example: status: error code: NOT_IMPLEMENTED message: This endpoint is not implemented for your workspace. securitySchemes: superUApiKey: type: apiKey in: header name: superU-Api-Key description: Your SuperU API key. ````