OpenApps

USAFacts Government Data Connector MCP server — tools & history

USAFacts Government Data Connector MCP server: observed open status, tool schemas, linked apps and version history.

USAFacts Government Data Connector

Endpoint: https://data.mcp.usafacts.org/mcp

Observed status: open. Checked: 2026-10-11T06:23:43+00:00.

Linked apps

Observed tools

  • call_source_tool — Call a tool on a data source. Requires a source_id and tool_name previously returned by get_source_tools(), with an arguments object matching the schema it gave for that tool. On success, the response carries `_citation` -- use it for attribution rather than reconstructing one. Read-only: every source in this gateway (U.S. government statistics APIs, legislative and spending data, .gov web search -- see list_sources() for the full, current list) only retrieves data, even where the upstream requires POST for a request body.
  • get_source — Get a source's playbook, methodology, and tool index. The playbook names the tool for each question shape and defines the source's concepts. The tool index carries names, summaries and groups only, not schemas; get_source_tools() returns the schema for named tools from that index.
  • get_source_tools — Get the full description and argument schema of named source tools. call_source_tool() requires a schema previously returned here for the source_id/tool_name pair it's given. Name every tool you may call in one request; call this once per source, after get_source() and before any call_source_tool.
  • list_sources — List available data sources and their descriptions.

Data as of 2026-10-11T06:23:43+00:00.

OpenApps records store listings and observed changes. Store ranks are not download counts; launch dates may be derived or use the first observation. Coverage gaps are shown in the interactive catalog.

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