Implements core computational tools including mathematical operations (sum), text processing (grep, SHA-256 hashing), and data validation utilities
Click on "Install Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type
@followed by the MCP server name and your instructions, e.g., "@MCP Local Serversum these numbers: 15, 23, 42.5"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
MCP Local Server
Minimal Model Context Protocol (MCP) server written in Python.
Features
Implements JSON-RPC stdio transport.
Tools:
sum: safely sum a list of numbers.grep_lines: filter lines containing a substring.sha256: compute SHA-256 hash of text.json_validate: validate data against a JSON Schema.
Related MCP server: MCP Server Basic Example
Usage
Run locally
python main.pyTest with jq or PowerShell
echo '{"jsonrpc":"2.0","id":1,"method":"initialize","params":{"protocolVersion":"2025-06-18","capabilities":{},"clientInfo":{"name":"Test","version":"0.1"}}}' | python main.pyExample tool call
echo '{"jsonrpc":"2.0","id":2,"method":"tools/call","params":{"name":"sum","arguments":{"values":[1,2,3.5]}}}' | python main.pyLogging
Setea MCP_LOG_FILE para escribir JSONL además de stderr:
$env:MCP_LOG_FILE="D:\ruta\log.jsonl"
python .\main.pyThis server cannot be installed
Resources
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