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Authentication errors

401 Unauthorized from Context usually means the API key is missing, invalid, or not sent as Authorization: Bearer sk_live_....

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Contract errors

Meridian rejects invalid requests explicitly, including:
  • Missing both products and coins for futures or spot.
  • Empty columns.
  • Unknown columns.
  • Unsupported exchanges for the selected surface.
  • An end timestamp that is not after the beginning.
  • Invalid custom-bar types, thresholds, cursors, or limits.
Correct the arguments rather than retrying the same invalid request.

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Valid empty results

An exact custom-bar query can return result_status="no_results" with query_complete=true. This is successful completion, not an infrastructure error.

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Source limitations

A source-limited warning means Meridian has identified a real venue or source limitation. Keep the value null and retain the warning. Do not fabricate zeroes or silently substitute another venue.

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Timeouts and long jobs

Context may return a jobId for broad work. Use the matching poll method. A timeout should not cause the caller to start duplicate paid jobs without checking the existing job state.