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python-utcp

Official Python implementation of the Universal Tool Calling Protocol, calling HTTP, CLI, MCP and text-file tools through plugins.

Harness by universal-tool-calling-protocol

IndexedMPL-2.0★ 653
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Install

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pip install utcp

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About

python-utcp is the official Python implementation of the Universal Tool Calling Protocol, an open standard for defining and calling tools across communication protocols. A core utcp package provides UtcpClient, Pydantic models and plugin interfaces, and protocol plugins add HTTP and SSE, CLI, MCP and text-file tools, with socket and GraphQL listed as in progress. Protocol plugins can be registered as shared instances or as per-client factories, so each client gets its own connections.

Use cases: api-integration

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Fact sheet

Languages
PythonREADME
Packages
utcp (pypi), utcp-http (pypi), utcp-cli (pypi), utcp-mcp (pypi), utcp-text (pypi)README
MCP support
Via adapterREADME
Streaming
YesREADME
Maturity
StableREADME

Facts extracted by Claude Haiku 5.5 from the linked sources on Oct 24, 2026. Wrong fact? Tell us.

Alternatives

Frameworks for the same language with a similar way of orchestrating agents.

Signals

Stars
653
Forks
51
Open issues
7
Weekly downloads
1,892
Last commit
Sep 16, 2026 (1 month ago)
Last package publish
Sep 16, 2026 (1 month ago)

From GitHub (fetched Oct 24, 2026) and the package registry.

Details

Packages
pypi utcppypi utcp-httppypi utcp-clipypi utcp-mcppypi utcp-text
License
MPL-2.0
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

python-utcp. Agent Mart. https://agentmart.dev/harnesses/python-utcp (last updated 2026-10-24)