Klavis AI

Klavis AI Tools API

List and invoke MCP server tools

Documentation GitHub OpenAPI

Specifications

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OpenAPI

https://raw.githubusercontent.com/api-evangelist/klavis/refs/heads/main/openapi/klavis-tools-api-openapi.yml

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OpenAPI Specification

openapi: 3.1.0
info:
  title: Klavis AI MCP Platform MCP Servers Tools API
  description: Klavis AI is an open-source MCP integration platform for AI agents. The REST API manages hosted MCP servers, tool invocation, sandbox VM acquisition, and user/integration metadata. API key authentication is passed via the Authorization Bearer header; OAuth 2.0 is supported for third-party service flows.
  version: v1
  contact:
    name: Klavis AI Developer Support
    url: https://www.klavis.ai/docs
servers:
- url: https://api.klavis.ai
  description: Klavis AI production server
security:
- BearerAuth: []
tags:
- name: Tools
  description: List and invoke MCP server tools
paths:
  /api/mcp-server/{server_id}/tools:
    get:
      operationId: listMcpServerTools
      summary: List MCP Server Tools
      description: List all tools available for a specific remote MCP server in various AI model formats.
      tags:
      - Tools
      parameters:
      - name: server_id
        in: path
        required: true
        schema:
          type: string
        description: Identifier of the MCP server instance
      - name: format
        in: query
        required: false
        schema:
          type: string
          enum:
          - openai
          - anthropic
          - gemini
          - mcp
        description: Tool schema format to return
      responses:
        '200':
          description: List of available tools
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/ToolListResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
  /api/mcp-server/call-tool:
    post:
      operationId: callMcpTool
      summary: Call Tool
      description: Invoke a tool on a specific remote MCP server. Used by clients to perform function calls without writing per-tool MCP code.
      tags:
      - Tools
      requestBody:
        required: true
        content:
          application/json:
            schema:
              $ref: '#/components/schemas/CallToolRequest'
      responses:
        '200':
          description: Tool invocation result
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/CallToolResponse'
        '401':
          $ref: '#/components/responses/Unauthorized'
components:
  schemas:
    CallToolRequest:
      type: object
      required:
      - serverUrl
      - toolName
      properties:
        serverUrl:
          type: string
          format: uri
        toolName:
          type: string
        toolArgs:
          type: object
          additionalProperties: true
        connectionType:
          type: string
          enum:
          - sse
          - streamable_http
    ErrorResponse:
      type: object
      properties:
        error:
          type: string
        code:
          type: integer
    Tool:
      type: object
      properties:
        name:
          type: string
        description:
          type: string
        parameters:
          type: object
          additionalProperties: true
    CallToolResponse:
      type: object
      properties:
        success:
          type: boolean
        result:
          type: object
          additionalProperties: true
        error:
          type: string
          nullable: true
    ToolListResponse:
      type: object
      properties:
        tools:
          type: array
          items:
            $ref: '#/components/schemas/Tool'
  responses:
    Unauthorized:
      description: Missing or invalid API key
      content:
        application/json:
          schema:
            $ref: '#/components/schemas/ErrorResponse'
  securitySchemes:
    BearerAuth:
      type: http
      scheme: bearer
      description: Klavis account API key passed via the Authorization Bearer header