Update mcp version 1.20.0 [II] #16307
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- Update mcp dependency: 1.10.1 -> 1.20.0 in requirements.txt, pyproject.toml, and CI config - Update uvicorn dependency: 0.29.0 -> 0.31.1 (required by MCP 1.20.0) - Update PyJWT constraint to support newer versions required by MCP - Update all CI pipeline references to MCP 1.20.0 - Add test to verify MCP version and import compatibility MCP 1.20.0 requires uvicorn >=0.31.1 and PyJWT >=2.10.1. MCP package remains Python >=3.10 only (no change to version constraint).
… poetry.lock - Updated pydantic constraint to support both Python 3.8 (<2.11) and Python 3.9+ (>=2.11) - Relaxed pydantic pin from ==2.10.2 to >=2.11,<3.0.0 in requirements.txt and CI files - Updated .circleci/config.yml to install pydantic >=2.11 instead of exact pin - Updated .github/workflows/test-mcp.yml to install MCP 1.20.0 - Regenerated poetry.lock with pydantic 2.12.4 compatible with MCP 1.20.0 - This resolves the CI ResolutionImpossible error where MCP required pydantic>=2.11
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@Granine is attempting to deploy a commit to the CLERKIEAI Team on Vercel. A member of the Team first needs to authorize it. |
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@krrishdholakia hopefully this will address the issue |
8 tasks
…latest litellm-proxy-extras 0.4.3
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@krrishdholakia I want to ping you again on this PR to update MCP version, hopefully I addressed circleci issue, lmk if you have more concerns. |
krrishdholakia
changed the base branch from
main
to
litellm_contributor_prs_11_10_2025
krrishdholakia
merged commit db7a308
into
BerriAI:litellm_contributor_prs_11_10_2025
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Title
Update MCP version from 1.10.1 to 1.20.0 and uvicorn to 0.31.1 [II]
Changelog
Relevant issues
Fixes the MCP version compatibility issue where litellm was stuck on MCP 1.12.4 due to uvicorn version constraint (^0.29.0), preventing access to newer MCP features and connectors introduced in versions 1.13-1.20.0.
Pre-Submission checklist
Please complete all items before asking a LiteLLM maintainer to review your PR
tests/litellm/directory, Adding at least 1 test is a hard requirement - see detailsmake test-unitType
🐛 Bug Fix
🆕 New Feature
Changes
Summary
Updated MCP (Model Context Protocol) package from 1.10.1 to 1.20.0 to enable support for newer MCP features and connectors. This required updating uvicorn from 0.29.0 to 0.31.1, which is a dependency requirement of MCP 1.13+.
Problem
Solution
Updated the following dependencies:
1.10.1→1.20.00.29.0→0.31.1(required by MCP 1.20.0)>=2.8.0,<3.0.0(for compatibility with MCP's PyJWT >=2.10.1 requirement)Files Modified
tests/test_litellm/test_mcp_version.py- New test file with 2 tests:test_mcp_version(): Verifies MCP package version is >=1.20.0test_mcp_imports(): Validates backward compatibility of all MCP importsBackward Compatibility
✅ Fully backward compatible:
proxyextra)>=3.10for MCP (no change)Testing
ClientSession,StdioServerParameters,sse_client,stdio_client,streamablehttp_client,MCPCallToolRequestParams,MCPCallToolResult,TextContent,ToolNotes
Tickets addressing
https://github.com/BerriAI/litellm/issues/16280](Uvicorn version must be updated to beyond 1.31.0)https://github.com/BerriAI/litellm/issues/15511](MCP == 1.20.0)