openapi: 3.1.0 info: title: Gradient Labs Actions & Tools API version: '1.0' description: 'HTTP API for Gradient Labs'' AI customer support agent ("Otto"). Use it to start and drive support conversations, add customer and human-agent messages, assign work to the AI agent, hand off to humans, run business tools/actions, and manage the knowledge base the agent reasons over. All requests are authenticated with a Bearer API key in the `Authorization` header. Unless stated otherwise, endpoints are idempotent and requests can be safely retried. IMPORTANT (accuracy note): Gradient Labs'' public API reference at https://api-docs.gradient-labs.ai/ is behind an access-code gate. The paths, verbs, and field names in this document were reconstructed from the vendor''s official open-source Go SDK (github.com/gradientlabs-ai/gradientlabs-go) and corroborating SDKs. Request/response schemas are modeled and simplified; verify exact field-level shapes against the gated reference before relying on them in production. See review.yml (endpointsConfirmed vs endpointsModeled).' contact: name: Gradient Labs url: https://www.gradient-labs.ai license: name: Proprietary servers: - url: https://api.gradient-labs.ai description: Gradient Labs production API security: - bearerAuth: [] tags: - name: Actions & Tools description: Define and execute business tools the AI agent can call. paths: /tools: post: tags: - Actions & Tools operationId: createTool summary: Create a tool description: Defines a business tool the AI agent can call. Requires a Management API key. requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/Tool' responses: '200': description: Tool created. content: application/json: schema: $ref: '#/components/schemas/Tool' '401': $ref: '#/components/responses/Unauthorized' /tools/{id}/execute: post: tags: - Actions & Tools operationId: executeTool summary: Execute a tool description: Executes a defined tool with the supplied arguments and returns its JSON-encoded result. Requires a Management API key. parameters: - name: id in: path required: true description: The tool identifier. schema: type: string requestBody: required: true content: application/json: schema: $ref: '#/components/schemas/ExecutionParams' responses: '200': description: Tool execution result. content: application/json: schema: $ref: '#/components/schemas/ExecuteResult' '401': $ref: '#/components/responses/Unauthorized' '404': $ref: '#/components/responses/NotFound' components: schemas: ExecuteResult: type: object properties: id: type: string description: The tool identifier. result: description: The JSON-encoded result of the tool execution, if it succeeded. error: type: string description: Error message if execution failed. Tool: type: object description: A business tool the AI agent can call. Fields are modeled; verify the exact shape against the gated API reference. properties: id: type: string name: type: string description: type: string parameters: type: array items: $ref: '#/components/schemas/ToolParameter' execution: type: string description: How the tool is executed - via webhook (action.execute delivered to your endpoint) or via a configured HTTP request. Argument: type: object properties: name: type: string value: type: string ExecutionParams: type: object required: - id properties: id: type: string description: The tool identifier. arguments: type: array items: $ref: '#/components/schemas/Argument' Error: type: object properties: error: type: string message: type: string ToolParameter: type: object properties: name: type: string description: type: string type: type: string required: type: boolean responses: NotFound: description: Resource not found. content: application/json: schema: $ref: '#/components/schemas/Error' Unauthorized: description: Missing or invalid API key. content: application/json: schema: $ref: '#/components/schemas/Error' securitySchemes: bearerAuth: type: http scheme: bearer description: Provide your Gradient Labs API key as a Bearer token in the Authorization header. Some administrative endpoints (tools) require a Management API key.