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Context Query mode

For broad historical requests, use responseShape="evidence_only" and request includeDataUrl. Context can keep large datasets outside the agent’s context window while returning bounded evidence and a durable data reference. If a query becomes an asynchronous job, poll the returned jobId. Do not submit the original query again.

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Custom bars

custom_bars accepts: 
limit: 1 to 10,000 rows
cursor: integer offset encoded as a string
The MCP method defaults return_next_cursor to false so a request such as limit: 5 remains exactly one five-row page. Set it to true only when the caller explicitly wants pagination information. custom_bars_catalog supports up to 5,000 entries per page.

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Safe historical access

  • Request only the columns needed for the calculation.
  • Split very broad histories into deterministic time windows.
  • Preserve the exchange, product, resolution, and interval in every output artifact.
  • Do not automatically follow cursors from an LLM unless the user requested all pages.