fastapi_mcp/CHANGELOG.md

Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

[0.2.0]

Changed

• Complete refactor from function-based API to a new class-based API with FastApiMCP
• Explicit separation between MCP instance creation and mounting with mcp = FastApiMCP(app) followed by mcp.mount()
• FastAPI-native approach for transport providing more flexible routing options
• Updated minimum MCP dependency to v1.6.0

Added

• Support for deploying MCP servers separately from API service
• Support for "refreshing" with setup_server() when dynamically adding FastAPI routes. Fixes Issue #19
• Endpoint filtering capabilities through new parameters:
  • include_operations: Expose only specific operations by their operation IDs
  • exclude_operations: Expose all operations except those with specified operation IDs
  • include_tags: Expose only operations with specific tags
  • exclude_tags: Expose all operations except those with specific tags

Fixed

• FastAPI-native approach for transport. Fixes Issue #28
• Numerous bugs in OpenAPI schema to tool conversion, addressing Issue #40 and Issue #45

Removed

• Function-based API (add_mcp_server, create_mcp_server, etc.)
• Custom tool support via @mcp.tool() decorator

[0.1.8]

Fixed

• Remove unneeded dependency.

[0.1.7]

Fixed

• Issue #34: Fix syntax error.

[0.1.6]

Fixed

• Issue #23: Hide handle_mcp_connection tool.

[0.1.5]

Fixed

• Issue #25: Dynamically creating tools function so tools are useable.

[0.1.4]

Fixed

• Issue #8: Converted tools unuseable due to wrong passing of arguments.

[0.1.3]

Fixed

• Dependency resolution issue with mcp package and pydantic-settings

[0.1.2]

Changed

• Complete refactor: transformed from a code generator to a direct integration library
• Replaced the CLI-based approach with a direct API for adding MCP servers to FastAPI applications
• Integrated MCP servers now mount directly to FastAPI apps at runtime instead of generating separate code
• Simplified the API with a single add_mcp_server function for quick integration
• Removed code generation entirely in favor of runtime integration

Added

• Main add_mcp_server function for simple MCP server integration
• Support for adding custom MCP tools alongside API-derived tools
• Improved test suite
• Manage with uv

Removed

• CLI interface and all associated commands (generate, run, install, etc.)
• Code generation functionality

[0.1.1] - 2024-07-03

Fixed

• Added support for PEP 604 union type syntax (e.g., str | None) in FastAPI endpoints
• Improved type handling in model field generation for newer Python versions (3.10+)
• Fixed compatibility issues with modern type annotations in path parameters, query parameters, and Pydantic models

[0.1.0] - 2024-03-08

Added

• Initial release of FastAPI-MCP
• Core functionality for converting FastAPI applications to MCP servers
• CLI tool for generating, running, and installing MCP servers
• Automatic discovery of FastAPI endpoints
• Type-safe conversion from FastAPI endpoints to MCP tools
• Documentation preservation from FastAPI to MCP
• Claude integration for easy installation and use
• API integration that automatically makes HTTP requests to FastAPI endpoints
• Examples directory with sample FastAPI application
• Basic test suite