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openapi-mcp-generator/CHANGELOG.md

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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.

[3.1.2] - 2025-06-08

Fixed

  • Prevent stack overflow (RangeError: Maximum call stack size exceeded) when processing recursive or cyclic OpenAPI schemas (e.g., self-referencing objects).
  • Added cycle detection to schema mapping, ensuring robust handling of recursive structures.

[3.1.1] - 2025-05-26

Added

  • Introduced a new executable command-line script for easier usage in Unix-like environments.

Changed

  • Changed the CLI entry point to use the new bin/openapi-mcp-generator.js file.
  • Updated build script to ensure the new CLI file has the correct permissions.
  • Refactored index.ts to streamline argument parsing and error handling.

[3.1.0] - 2025-05-18

Added

  • Programmatic API to extract MCP tool definitions from OpenAPI specs
  • New exportable getToolsFromOpenApi function for direct integration in code
  • Advanced filtering capabilities for programmatic tool extraction
  • Comprehensive documentation in PROGRAMMATIC_API.md
  • Updated README with programmatic API usage examples

Changed

  • Improved module structure with better exports
  • Enhanced detection of module execution context

[3.0.0] - 2025-04-26

Added

  • Streamable HTTP support for OpenAPI MCP generator, enabling efficient handling of large payloads and real-time data transfer.
  • Major architectural refactor to support streaming responses and requests.

Fixed

  • Multiple bugs related to HTTP/HTTPS connection handling, stream closure, and error propagation in streaming scenarios.
  • Fixed resource leak issues on server aborts and client disconnects during streaming.

Changed

  • Major version bump due to breaking changes in API and internal structures to support streaming.
  • Updated documentation to reflect new streaming capabilities and usage instructions.
  • Enhanced performance and robustness of HTTP/HTTPS transport layers.

[2.0.0] - 2025-04-12

Added

  • Runtime argument validation using Zod
  • JSON Schema to Zod schema conversion
  • Improved error handling and formatting
  • TypeScript strict mode enabled
  • Buildable project structure with proper TypeScript configuration
  • Enhanced project documentation
  • Better support for OpenAPI request body handling
  • Support for multiple content types

Changed

  • Simplified transport layer to only support stdio transport
  • Removed support for WebSocket and HTTP transports
  • Updated to use @modelcontextprotocol/sdk v1.9.0
  • Improved CLI interface with better error messages
  • Enhanced type safety throughout the codebase
  • Better handling of path parameters and query strings
  • More robust OpenAPI schema processing

Fixed

  • Path parameter resolution in URLs
  • Content-Type header handling
  • Response processing for different content types
  • Schema validation error messages
  • Building and packaging issues

[1.0.0] - Initial Release

Added

  • Basic OpenAPI to MCP server generation
  • Support for GET, POST, PUT, DELETE methods
  • Basic error handling
  • Simple CLI interface
  • Basic TypeScript support