v4.18.0

punkpeye/fastmcpv4.18.0Sep 1, 2026by github-actions[bot]

AI Summary

This release introduces a new `fromOpenAPI()` converter designed to work with OpenAPI 3.x specifications, allowing users to easily import REST API schemas. It also includes a real-world benchmark suite to validate the performance and accuracy of the new converter.

Key Highlights

  • Added `fromOpenAPI()` converter for OpenAPI 3.x specs
  • Included real-world benchmark suite
  • Addresses issue #349

New Features

  • OpenAPI 3.x converter (`fromOpenAPI()`)
  • Real-world benchmark suite

Full Release Notes

# [4.18.0](https://github.com/punkpeye/fastmcp/compare/v4.17.1...v4.18.0) (2026-09-01)


### Features

* **openapi:** add fromOpenAPI() converter v1 for OpenAPI 3.x specs + real-world benchmark suite ([#349](https://github.com/punkpeye/fastmcp/issues/349)) ([27d054f](https://github.com/punkpeye/fastmcp/commit/27d054f3f721049805dc52ded4817b3872c23a62))