Query U.S. Census Bureau data, variables, and geography via MCP. STDIO or Streamable HTTP.
Latest release v0.3.3 — v0.3.3: MCP SDK v2 adoption via mcp-ts-core 0.12.3 · 25 Aug 2026
2 files for Claude Code, Codex and OpenCode: census-mcp-server AGENTS.md, census-mcp-server CLAUDE.md — 12,212 tokens loaded in every session.
AGENTS.md A 6,106 tok CLAUDE.md A 6,106 tok These files are cyanheads/census-mcp-server's own configuration — they tell Claude Code, Codex and OpenCode how to work on this repository, so they are not mods to install elsewhere. Copy one as a starting point and replace the parts that are about this project.