// SCAN REPORT

STRING MCP Server

9 tools. 0 can modify or destroy data without limits.

Read-only server. Low risk, but rate limits prevent runaway API costs.

Last updated: 3 Jul 2026

0 can modify or destroy data

9 read-only

9 tools total

Community server · catalogue entry verified 03/07/2026

How to control STRING MCP Server ↓

TOOL MAP

What STRING MCP Server exposes to your agents

Read (9) Write / Execute (0) Destructive / Financial (0)

Running more than one server? Check your whole stack →

THE RISK

What can go wrong

Even read-only tools carry cost. An agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up bills.

POLICY

How to control STRING MCP Server

PolicyLayer is an MCP gateway — it sits between your AI agents and STRING MCP Server, and nothing reaches the server without passing your rules. These are the rules we recommend:

Cap read operations

{
  "get_enrichment": {
    "limits": [
      {
        "counter": "get_enrichment_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register STRING MCP Server — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON STRING →

Instant setup, no code required.

FULL CATALOGUE

All 9 STRING MCP Server tools

READ 9 tools

Read get_enrichment Perform functional enrichment analysis for a set of proteins. Tests for over-representation in Gene Ontology t Read get_homology Get homology information for proteins across species using STRING. Read get_homology_best Get the best homology match for proteins in a target species. Read get_interaction_partners Get all STRING interaction partners for your proteins. Returns a list of interacting proteins with confidence Read get_network Retrieve protein-protein interaction network for given proteins. Returns network edges with confidence scores. Read get_ppi_enrichment Test if your protein set has more interactions than expected by chance. Returns enrichment p-value. Read get_string_ids Map protein names, synonyms, and UniProt identifiers to STRING identifiers. Species parameter uses NCBI taxon Read get_version Get the current version of the STRING database. Read resolve_proteins Resolve protein names to their preferred names in STRING database.

FAQ

Questions about STRING MCP Server

Is the STRING MCP Server MCP server safe to use without restrictions? +

The STRING MCP Server server is primarily read-only with 9 read tools. While it cannot modify data, an agent in a retry loop can make thousands of API calls per minute, exhausting rate limits and running up costs. Rate limiting is still recommended.

How many tools does the STRING MCP Server MCP server expose? +

9 tools across 2 categories: Read, Write. 9 are read-only. 0 can modify, create, or delete data.

How do I enforce a policy on STRING MCP Server? +

Register the STRING MCP Server MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every STRING MCP Server tool call.

Deterministic rules across all 9 STRING MCP Server tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON STRING →

Instant setup, no code required.

9 STRING MCP Server tools catalogued and risk-classified — across an index of 43,000+ MCP servers.