DataGraph

io.github.team-earth/datagraph

Bridges Claude to structured urban datasets for city planning and civic analysis. You'd reach for this when working on municipal projects that need real locality data rather than LLM generalizations. Think querying neighborhood boundaries, census tracts, infrastructure locations, or demographic patterns through a knowledge graph instead of hoping the model remembers correct city details. The stdio transport keeps it simple for local workflows. Useful when you're building tools for civic tech, urban research, or any application where getting street-level facts right actually matters and you need verifiable municipal data backing your responses.

tools: 5
transport: STDIO, HTTP
last updated: Jun 27, 2026

Open website

Install

From registry metadata

$ npx add-mcp https://api.datagraph.city/mcp --name datagraph

Run in your terminal. add-mcp asks which agents to add it to (Claude Code, Codex, Cursor and more). Add -g to install it for every project.

Review the command, arguments and environment values before installing. MCP servers run with your local permissions.

Other ways

Claude Code

$ claude mcp add --transport http datagraph https://api.datagraph.city/mcp

Run in your terminal. Add --scope user to make it available in every project.

Tools

Verified live · 5 tools

Verified live against the running server on Nov 6, 2026.

get_server_infoGet DataGraph MCP server metadata and GOSR framework info.

Get DataGraph MCP server metadata and GOSR framework info.

No parameters. Call it with no arguments.

list_datasetsList available datasets. Optionally filter by locality code.1 params

List available datasets. Optionally filter by locality code.

Parameters* required

localitystring

Filter by locality code (optional)

get_locality_schemaGet the graph schema for a locality (node types, relationships, sample queries). Call list_datasets first to get locality codes.1 params

Get the graph schema for a locality (node types, relationships, sample queries). Call list_datasets first to get locality codes.

Parameters* required

locality*string

Locality code (REQUIRED). Use the 'locality' field from list_datasets. Example: 'nova-scotia', 'kc', 'unlonely-nyc'.

query_locality_dataQuery data using natural language or Cypher. Requires auth.5 params

Query data using natural language or Cypher. Requires auth.

Parameters* required

cypher_paramsobject

Parameters for Cypher query ($param syntax).

cypher_querystring

RECOMMENDED: Cypher query generated from schema. MUST include WHERE n.dataset = '<dataset_id>' filter. Must be read-only with LIMIT clause (max 1000).

limitnumber

Max results for NL queries (default: 10, max: 100)default: 10

localitystring

Locality code (REQUIRED). Use the 'locality' field from list_datasets.

query*string

User question or description.

get_usage_statsCheck your API usage and quota. Requires auth.

Check your API usage and quota. Requires auth.

No parameters. Call it with no arguments.