STRINGmcp MCP Server

A comprehensive Python package for interacting with the STRING database API through a Model Context Protocol (MCP) bridge.

Local serverstdioPython

What is the STRINGmcp MCP server?

STRINGmcp becomes available to MCP clients through the stringmcp mcp server. A comprehensive Python package for interacting with the STRING database API through a Model Context Protocol (MCP) bridge.

What STRINGmcp does

A comprehensive Python package for interacting with the STRING database API through a Model Context Protocol (MCP) bridge.

Key capabilities

  • Protein Identifier Mapping — Convert various protein identifiers to STRING IDs
  • Network Analysis — Retrieve protein-protein interaction networks
  • Functional Enrichment — Perform gene ontology and pathway enrichment analysis
  • Network Visualization — Generate network images in various formats
  • Interaction Partners — Find all interaction partners for proteins
  • Functional Annotations — Get detailed functional annotations
  • Protein Similarity — Calculate similarity scores between proteins
  • PPI Enrichment — Test for protein-protein interaction enrichment

Tools it exposes

Once connected, the assistant can call these 2 tools directly:

  • Configuration — config = StringConfig( base_url="https://string-db.org/api", version_url="https://version-12-0.string-db.org/api", caller_identity="my_app", request_delay=1.0
  • Summary — This comprehensive analysis demonstrates that the STRING-DB MCP bridge successfully: - Identified all 5 DNA repair proteins with detailed annotations -

Installing the stringmcp mcp server

The server is distributed via PyPI as string-mcp, so most clients can run it without a manual build step. Add it to your MCP client's configuration and restart the client to pick it up — the copy-paste configs for Claude Desktop, Claude Code and Cursor are on this page.

Where it fits

Database servers turn schema archaeology and ad-hoc reporting into conversation, which is why they tend to be the second or third server people install. STRINGmcp sits in that group, and the shape of its toolset — Configuration, Summary — tells you what it is really for. Worth comparing against the other databases servers in this directory before you commit to one, since several overlap in scope but differ sharply in setup cost and permissions.

Practical notes

  • This server runs locally, so it operates with whatever access your machine and its credentials already have. Scope that deliberately rather than by default.
  • Maintained by MCPmed, written in Python.
  • MCP clients ask for confirmation before each tool call by default. Keep that on while you learn what the stringmcp mcp server actually does with your data.
  • Every entry in this directory is reviewed by hand before it goes live, and details are checked against the project's own documentation.

Available tools

ToolWhat it does
Configurationconfig = StringConfig( base_url="https://string-db.org/api", version_url="https://version-12-0.string-db.org/api", caller_identity="my_app", request_delay=1.0 # Delay between requests in seconds )
SummaryThis comprehensive analysis demonstrates that the STRING-DB MCP bridge successfully: - **Identified all 5 DNA repair proteins** with detailed annotations - **Discovered 10 high-confidence protein interactions** (all >0.8

How to install the STRINGmcp MCP server

## Claude config

```json
  "mcpServers": {
    "string-mcp": {
      "command": "/path/to/python/env/bin/string-mcp-server",
      "env": {}
    }
  }
}

Configuration as documented by the project. Restart the client after saving.

Example prompts to try

  • Use STRINGmcp to Configuration.
  • Use STRINGmcp to Summary.

Frequently asked questions

It connects STRINGmcp to MCP-compatible AI assistants such as Claude and Cursor, exposing 2 tools (Configuration, Summary) that the assistant can call on your behalf. Instead of copying data back and forth by hand, the assistant works with STRINGmcp directly.