A free API for US macro data

Most of the catalog is US-government-produced economic data, which is public domain. Those series are served in full through /series/{id} and its CSV export, with no restriction beyond the attribution request above.

Ten of the 35 tracked series are hosted on FRED by permission of a private owner, and that owner's license does not extend to redistributing the raw values through a third-party API. Those ten remain viewable as interactive charts on the site, and their catalog entries carry full metadata, but calling /series/{id} or /series/{id}/latest for one of them returns HTTP 451 with a license_note and a chart_url pointing at the chart instead of a value.

MacroRadar's own model outputs — the macro regime read, recession probability, and sentiment composite — are free to use with attribution, same as the public-domain series. They are historical indicators describing what the models compute from public data, not investment advice, and never a recommendation to buy, sell, or hold any security.

@macroradar/mcp is a zero-dependency Node stdio server that wraps this API for Claude Desktop, Claude Code, and other Model Context Protocol clients, so an assistant can look up an indicator or the current regime read directly instead of you copying values by hand. Add it to a client's MCP config as follows:

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

The package is published on npm as @macroradar/mcp — the config above works as-is with any MCP client that can run npx. It ships sixteen tools, a thin wrapper over this same API, so the licence rule above applies to it unchanged: every value returned over a redistributable series may be quoted in public and verified for free against this API. Licensed series never leave the raw level unmarked — series-level tools return metadata and a chart link instead of a value, and derived-statistic tools return their computed percentile or rank with a note that the underlying level is withheld, the same wording /api/v1/ranked uses for its value_note.