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v3.35.0

punkpeye/fastmcpv3.35.0Apr 2, 2026by github-actions[bot]

AI Summary

Feature release adding a new callback mechanism for tool invocations, enabling better monitoring and logging of tool calls.

Key Highlights

  • Added onToolCall callback for monitoring tool invocations

New Features

  • onToolCall callback

Full Release Notes

# [3.35.0](https://github.com/punkpeye/fastmcp/compare/v3.34.0...v3.35.0) (2026-04-02)


### Features

* add onToolCall callback ([#254](https://github.com/punkpeye/fastmcp/issues/254)) ([b0ca1ef](https://github.com/punkpeye/fastmcp/commit/b0ca1ef069d98a964d45dd19857711ba6f28df8a)), closes [#163](https://github.com/punkpeye/fastmcp/issues/163)