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FastMCP

v3.29.0 Feature

This release adds 2 notable features for engineering teams evaluating rollout.

Published 4mo MCP Developer Tools
✓ No known CVEs patched
Read the diff → Tool health → What is this tool? →

✓ No known CVEs patched in this version

Topics

mcp sse

Affected surfaces

auth

Summary

AI summary

Added updateAuth method and oauth swap‑mode refresh token handling.

Full changelog

3.29.0 (2026-01-23)

Features

  • add updateAuth method to FastMCPSession (#230) (e6986d4)
  • oauth: implement swap-mode refresh token handling (#231) (34ba8ed)
View diff on GitHub

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About FastMCP

A high-level framework for building MCP servers in TypeScript

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Related context

Beta — feedback welcome: [email protected]