io.github.cyanheads/census-mcp-server

up checked 2026-11-11T05:38:35.268Z

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Publisher-provided description

Query U.S. Census Bureau data, variables, and geography via MCP.

Summary by lookupd

Query U.S. Census datasets, variables and geographies; resolve place names or addresses to FIPS codes and compare data across regions.

Install

Claude Code, remote (streamable-http)

claude mcp add --transport http census-mcp-server https://census.caseyjhand.com/mcp

Claude Code, npm package (stdio)

claude mcp add census-mcp-server -- npx -y @cyanheads/census-mcp-server

Claude Code, npm package (stdio)

claude mcp add census-mcp-server -- npx -y @cyanheads/census-mcp-server

Codex, remote (streamable-http)

codex mcp add census-mcp-server --url https://census.caseyjhand.com/mcp

Codex, npm package (stdio)

codex mcp add census-mcp-server -- npx -y @cyanheads/census-mcp-server

Codex, npm package (stdio)

codex mcp add census-mcp-server -- npx -y @cyanheads/census-mcp-server

Cursor, remote (streamable-http) → .cursor/mcp.json

{
  "mcpServers": {
    "census-mcp-server": {
      "url": "https://census.caseyjhand.com/mcp"
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "census-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/census-mcp-server"
      ]
    }
  }
}

Cursor, npm package (stdio) → .cursor/mcp.json

{
  "mcpServers": {
    "census-mcp-server": {
      "command": "npx",
      "args": [
        "-y",
        "@cyanheads/census-mcp-server"
      ]
    }
  }
}

Other clients: docs. Or tell your agent: Set up lookupd for me: read https://lookupd.com/agent.md and follow it.

Tools (8 tools)

Publisher-provided text

• census_list_datasets Browse available Census Bureau datasets with their supported vintage years. Use as the starting point when the right dataset is unknown — ACS5, ACS1, and their
• census_list_geographies List the geography levels available for a given Census dataset and year, along with the parent geographies each level requires. Use before querying to confirm t
• census_search_variables Search Census variables by keyword across variable labels and concept groups, or look one up by its code. Returns variable codes with human-readable labels — us
• census_get_variable Fetch full metadata for one or more Census variable codes — label, concept group, predicate type, the table's universe, and margin-of-error sibling references.
• census_list_predicate_values List the codes a Census filter dimension accepts, so a predicates map can be written without guessing. Answers the question left open when census_query_data or
• census_resolve_geography Resolve a place name, ZIP code, or street address to Census FIPS identifiers. Converts names like "King County, WA", "Seattle, WA", or "Seattle-Tacoma-Bellevue,
• census_query_data Query a Census dataset for one or more variables at one geography, a list of geographies at the same level, or every geography at a level. Accepts FIPS codes fo
• census_compare_geographies Compare one or more variables across multiple geographies at the same level — all counties in a state, all states nationally, or a named set of specific geograp

Details

• Version: 0.7.2
• Transports: streamable-http, stdio
• Uptime (7 days): 100%
• Median latency: 761 ms
• First indexed: 2026-11-01T09:25:50.107Z
• Last seen in registry: 2026-11-04T03:17:14.993Z
• Repository: https://github.com/cyanheads/census-mcp-server

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