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An MCP server for Claude, ChatGPT and Cursor

Connect your agent to every Aperiodic dataset at aperiodic.io/mcp. Its tools return schemas, statistics and signed Parquet links, so the data goes to your agent's code, not into its context.

The Aperiodic MCP server puts every metrics and raw dataset behind one URL, https://aperiodic.io/mcp, for Claude Code, claude.ai, Claude Desktop, ChatGPT, Cursor and any MCP client.

  • Handles, not rows. get_data answers with signed Parquet links, the schema, row counts, each column's min, max and nulls, five sample rows and a Polars snippet. Your agent's code downloads the files; the model reads a few kilobytes.
  • Numbers without code. Where the client can't run code, summarize works out statistics, a correlation matrix or a resampled series on our side.
  • Live, too. live_feed hands your code the WebSocket feed's URL, subscribe frame and limits.
  • Sign in or use your key. Connectors sign in with OAuth and appear under Connected apps on your API page, where you can disconnect them. Claude Code and scripts send the same API key as the REST API.
  • Free to start. With no key it serves the free preview of every dataset, as the API does.
claude mcp add --transport http aperiodic https://aperiodic.io/mcp
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Built from hundreds of terabytes of raw data and distilled into point-in-time metrics you can pull as parquet files. Plus the raw trades, quotes and derivatives data behind them.

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