MCP Run Python
Model Context Protocol server to run Python code in a sandbox.
The code is executed using Pyodide in Deno and is therefore isolated from
the rest of the operating system.
See <https://ai.pydantic.dev/mcp/run-python/> for complete documentation.
The server can be run with
deno installed using:where:
-N -R=node_modules -W=node_modules(alias of--allow-net --allow-read=node_modules --allow-write=node_modules) allows network access and read+write access to./node_modules. These are required so pyodide can download and cache the Python standard library and packages
--node-modules-dir=autotells deno to use a localnode_modulesdirectory
stdioruns the server with the Stdio MCP transportsuitable for running the process as a subprocess locally
sseruns the server with the SSE MCP transportrunning the server as an HTTP server to connect locally or remotely
warmupwill run a minimal Python script to download and cache the Python standard library. This is also useful to check the server is running correctly.
Here's an example of using
@pydantic/mcp-run-python with PydanticAI: