Biomcp vs String Db

A side-by-side look at the Biomcp and String Db MCP servers: transport, auth, tools, quality signals, and the config to install either one in Claude, Cursor, Windsurf or VS Code.

Biomcp logoBiomcpBiology & Bioinformatics · Local subprocess (stdio)Biomedical research server providing access to PubMed, ClinicalTrials.gov, and MyVariant.info.49FairAuth: no auth requiredString Db logoString DbBiology & Bioinformatics · Local subprocess (stdio)STRING protein-protein interaction networks across ~12k organisms41FairAuth: not declared

Verdict: choose Biomcp for biology & bioinformatics work as a local process; choose String Db for biology & bioinformatics as a local process. You can also run both side by side in one mcpServers block.

Which MCP server should you choose?

Biomcp logoChoose Biomcp when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
  • Its auth model fits you: No auth required.
Explore Biomcp

String Db logoChoose String Db when

  • You need dedicated capabilities in the Biology & Bioinformatics domain.
  • You prefer a local stdio subprocess transport.
Explore String Db

Feature & specification comparison

Rows where the two servers differ are marked.

SpecBiomcp logoBiomcpString Db logoString Db
CategoryBiology & BioinformaticsBiology & Bioinformatics
Quality signal49/100 · Fair41/100 · Fair
Install commandConfirmedConfirmed
TransportLocal subprocess (stdio)Local subprocess (stdio)
AuthNo auth requiredNot declared
PricingFreeNot declared
Required env varsNone listedNone listed
Verified ownerCommunity listingCommunity listing
GitHub stars6590
Directory activity 8 views 0 installs 0 upvotes 3 views 0 installs 0 upvotes
ToolsNot listedNot listed

Tools & capabilities

Biomcp tools

No tool names declared yet. Check the project README from the listing page.

String Db tools

No tool names declared yet. Check the project README from the listing page.

Ready-to-paste client configs

Paste either block (or both) into your client config, e.g. claude_desktop_config.json or ~/.cursor/mcp.json. We only show a config when the install command is confirmed.

Biomcp

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "genomoncology-biomcp": {
      "command": "uvx",
      "args": [
        "biomcp-cli"
      ]
    }
  }
}

String Db

mcpServers (Claude Desktop / Cursor)
{
  "mcpServers": {
    "string-db": {
      "command": "npx",
      "args": [
        "-y",
        "@pipeworx/mcp-string-db"
      ]
    }
  }
}

Frequently asked questions

Biomcp is categorized under Biology & Bioinformatics and uses a local stdio subprocess. String Db belongs to Biology & Bioinformatics and uses a local stdio subprocess. Pick Biomcp for biology & bioinformatics work and String Db for biology & bioinformatics.

Copy the mcpServers block from the config section on this page into your client's config (for example claude_desktop_config.json or ~/.cursor/mcp.json), then fully restart the client.

Biomcp is listed as free. Auth: no auth required. String Db has no declared pricing — check the project's own site. If a server needs environment variables such as API keys, define them under the env key in your client's MCP config.

Yes. MCP clients support multiple servers: add genomoncology-biomcp and string-db as separate keys in the same mcpServers object, and your assistant will call tools from either one.

On AllMCPs, Biomcp has a quality signal of 49/100 (Fair) with 8 views, 0 installs and 659 GitHub stars. String Db has 41/100 (Fair) with 3 views, 0 installs and 0 GitHub stars.