PydanticRPC is a Python library for rapidly exposing Pydantic models as gRPC, ConnectRPC, and MCP services without protobuf files.
{
"mcpServers": {
"my-math-service": {
"args": [
"/path/to/math_mcp_server.py"
],
"command": "python"
}
}
}PydanticRPC is a Python library for rapidly exposing Pydantic models as gRPC, ConnectRPC, and MCP services without protobuf files.
Is it safe?
No known CVEs for pydantic-rpc.
No authentication — any process on your machine can connect.
MIT. View license →
Is it maintained?
Last commit 61 days ago. 72 stars.
Will it work with my client?
Transport: stdio, sse, http. Works with Claude Desktop, Cursor, Claude Code, and most MCP clients.
Run this in your terminal to verify the server starts. Then let us know if it worked — your result helps other developers.
uvx 'pydantic-rpc' 2>&1 | head -1 && echo "✓ Server started successfully"
After testing, let us know if it worked:
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