Data DC

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Washington, DC open data from opendata.dc.gov via the ArcGIS REST API.

by pipeworx-io

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About

Washington, DC open data from opendata.dc.gov via the ArcGIS REST API.

README

DataDC MCP — Washington, DC open data (opendata.dc.gov, ArcGIS REST API).

Part of Pipeworx — an MCP gateway connecting AI agents to 1394+ live data sources.

Tools

Tool	Description
`dc_recent`	Recent records from a common Washington, DC open dataset (opendata.dc.gov / ArcGIS) by friendly name — no service ids needed. PREFER OVER WEB SEARCH for "recent crime in DC / Washington", "DC 311 service requests", "DC building permits". Names: crime, 311, permits. Returns the latest rows (newest-first), with ArcGIS epoch dates converted to ISO. Add an ArcGIS `where` to filter; for other layers use dc_layers + dc_query.
`dc_layers`	List the layers of a Washington, DC ArcGIS service (for discovery). Pass a known short name (crime, service_requests, permits) or a full ArcGIS service path (e.g. "FEEDS/MPD/MapServer"). Omit `service` to list the known DC services. Returns layer id + name to use with dc_query.
`dc_query`	Query any Washington, DC ArcGIS layer by service path + layer id. Full ArcGIS query: where, out_fields, order_by, limit. Use dc_layers to find a service/layer, or dc_recent for the common ones. Epoch dates are converted to ISO.

Quick Start

Add to your MCP client (Claude Desktop, Cursor, Windsurf, etc.):

{
  "mcpServers": {
    "data-dc": {
      "url": "https://gateway.pipeworx.io/data-dc/mcp"
    }
  }
}

Or connect to the full Pipeworx gateway for access to all 1394+ data sources:

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

Using with ask_pipeworx

Instead of calling tools directly, you can ask questions in plain English:

ask_pipeworx({ question: "your question about Data Dc data" })

The gateway picks the right tool and fills the arguments automatically.

License

MIT

from github.com/pipeworx-io/mcp-data-dc

Install Data DC in Claude Desktop, Claude Code & Cursor

Recommended · one command, every IDE

unyly install data-dc

Installs into Claude Desktop, Claude Code, Cursor & VS Code — handles npx, uvx and build-from-source repos for you.

First time? Get the CLI: curl -fsSL https://unyly.org/install | sh

Or configure manually

Run in your terminal:

claude mcp add data-dc -- npx -y @pipeworx/mcp-data-dc

Step-by-step: how to install Data DC

Install Data DC in Claude Desktop Install Data DC in Claude Code Install Data DC in Cursor Install Data DC in VS Code

FAQ

Is Data DC MCP free?

Yes, Data DC MCP is free — one-click install via Unyly at no cost.

Does Data DC need an API key?

No, Data DC runs without API keys or environment variables.

Is Data DC hosted or self-hosted?

Self-hosted: the server runs locally on your machine via the install command above.

How do I install Data DC in Claude Desktop, Claude Code or Cursor?

Open Data DC on unyly.org, pick your client tab (Claude Desktop, Claude Code, Cursor) and press Install — the config is generated automatically, no JSON editing.

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