Support FastMCP 3.x while maintaining 2.x compatibility#852
Merged
Conversation
FastMCP 3.0 replaced private _call_tool_mcp()/_list_tools_mcp() with public call_tool()/list_tools() methods, and changed get_tool() to return None instead of raising when a tool is not found. - Update instrumentation to handle get_tool() returning None - Update tests with compat helpers that use the correct API based on the installed fastmcp version - Remove the fastmcp<3 version pin from tox.ini (no longer needed) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
mitchh456
force-pushed
the
fix/fastmcp-3-compatibility
branch
from
b490695 to
ec800d2
Compare
1 task
quinnmil
approved these changes
Apr 3, 2026
mitchh456
added a commit
that referenced
this pull request
Apr 6, 2026
* Use Job.id property instead of removed get_id() method rq v2.7 refactored Job.id from `id = property(get_id, set_id)` to a `@property` decorator, removing get_id() as a callable method. Job.id has been available since rq v0.5.0 so this is backwards compatible. Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com> * Support FastMCP 3.x while maintaining 2.x backwards compatibility (#852) FastMCP 3.0 replaced private _call_tool_mcp()/_list_tools_mcp() with public call_tool()/list_tools() methods, and changed get_tool() to return None instead of raising when a tool is not found. - Update instrumentation to handle get_tool() returning None - Update tests with compat helpers that use the correct API based on the installed fastmcp version - Remove the fastmcp<3 version pin from tox.ini (no longer needed) Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
_call_tool_mcp()/_list_tools_mcp()with publiccall_tool()/list_tools()get_tool()to returnNoneinstead of raisingfastmcp>=2.9.0Changes
src/scout_apm/fastmcp.py: Handleget_tool()returningNonein 3.xtests/integration/test_fastmcp.py: Add_call_tool()/_list_tools()compat helpersTest plan
🤖 Generated with Claude Code