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Rate limits & quotas

Every Meridian API key is subject to per-minute request and token limits. Limits scale with your plan and reset on a rolling 60-second window.

Tier	RPM	TPM	Burst	Concurrent
Partner / Unlimited	10,000	10,000,000	3× baseline for 30 s	100
Production	1,000	1,000,000	2× baseline for 15 s	25
Trial	60	100,000	—	5

Handling 429 responses

When you exceed a limit, Meridian returns HTTP 429 Too Many Requests. The response body includes a JSON error object:

{
  "error": {
    "code": "rate_limit_exceeded",
    "message": "RPM limit reached. Retry after 12 s.",
    "retry_after_seconds": 12
  }
}

→Read the retry_after_seconds field and sleep before retrying.
→Implement exponential backoff with jitter to avoid thundering herd.
→Monitor the x-ratelimit-remaining-requests and x-ratelimit-remaining-tokens response headers to stay under limits proactively.