OpenNeuro MCP Server gives an AI assistant GraphQL access to the OpenNeuro neuroimaging data platform, covering MRI, MEG, EEG, iEEG, and ECoG datasets, snapshots, and file listings, without requiring authentication.

Use it when you want to look up a neuroimaging dataset by ID, list the files in a specific dataset snapshot, query dataset metadata, or introspect the GraphQL schema to discover available fields and operations. Since OpenNeuro's data is public, no API key is needed. Do not use it for private or restricted neuroimaging data - it only accesses the free, open OpenNeuro platform.

• openneuro_graphql_query: execute a GraphQL query against the OpenNeuro API, supporting dataset lookups, snapshot file listings, metadata queries, and schema introspection.

Example queries: get dataset information by dataset ID, list files in a dataset snapshot, perform schema introspection to discover available fields and operations, query neuroimaging datasets and their metadata.

Connect to the hosted production server via mcp-remote:

{
  "mcpServers": {
    "openneuro": {
      "command": "npx",
      "args": ["mcp-remote", "https://open-neuro-mcp-server.quentincody.workers.dev/sse"]
    }
  }
}

For local development, clone and run:

git clone https://github.com/quentincody/open-neuro-mcp-server.git
cd open-neuro-mcp-server
npm install
npm run dev

Then point Claude Desktop at http://localhost:8787/sse instead. Deploy your own instance to Cloudflare Workers with npm run deploy.

Neuroscience researchers who want an AI assistant to query OpenNeuro's public neuroimaging datasets conversationally instead of manually browsing the OpenNeuro website or writing GraphQL clients. Academic/research use requires attribution per the project's MIT license terms.