`einfo`

Pack: ncbi-eutils · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/einfo for the schema, then POST the same URL with its arguments for the data.

List all available Entrez databases (omit db) or return field definitions and link names for a specific database (e.g. db=pubmed). Use before esearch to discover valid search fields and databases.

Parameters

Name	Type	Required	Description
`db`	string	no	Optional db name; omit for global db list.

Example call

Arguments

{
  "db": "pubmed"
}

curl

curl -X POST https://gateway.pipeworx.io/ncbi-eutils/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"einfo","arguments":{"db":"pubmed"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('einfo', {
  "db": "pubmed"
});

More examples

{}

Response shape

Full JSON Schema

{
  "type": "object",
  "description": "NCBI einfo response - database information and field list"
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the ncbi-eutils pack

{
  "mcpServers": {
    "ncbi-eutils": {
      "url": "https://gateway.pipeworx.io/ncbi-eutils/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

einfo