rate-limited

type: https://docs.d2b.dev/errors/rate-limited — Rate limited. Typical status: 429.

The per-key limit (rate_limit_per_minute set at minting) or a per-endpoint limit was exceeded. The SDKs retry with exponential backoff.

The per-key limit is one budget for the whole key: every authenticated request counts against it, whichever endpoint it calls, and the MCP server shares the same budget. A per-endpoint limit is separate and applies to that endpoint alone.

What to do

• Honour the Retry-After header
• Batch row writes (up to 1,000 rows per upsert_rows call); use async=true + jobs.wait for ingestion
• Set rate_limit_per_minute when you mint the key. A key can never mint a wider one than itself, so raise the limit on the key you mint from

All error types: Reading errors.