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Terminal or Vercel runtime logs

AI_APICallError: 429 Too Many Requests — Rate limit exceeded (Retry-After: …)

What it means
Too many AI requests were sent in a short burst. Tokentide refused the extra request without charging and included a `Retry-After` header saying how many seconds to use the backup.
Likely causes
  • A user or automated test triggered many AI requests rapidly without a rate limit on your app's endpoint.
  • The AI client retried Tokentide immediately instead of honoring Retry-After and routing to the Vercel AI Gateway fallback.
Prevention
Always add rate limits to model-calling endpoints and honor Retry-After in the Tokentide-to-Gateway fallback.

Copy for your agent

We hit `429 Too Many Requests` on AI calls. Confirm our Tokentide wrapper sets `maxRetries: 0`, falls back to the Vercel AI Gateway while honoring `Retry-After`, and add a rate limit to our AI endpoint.

Full help articleThe AI feature returns errors (402, 429, 503) and the backup

Last reviewed Nov 8, 2026