Together AI API Key Tester

Test any AI or API key in your browser — instantly see if it's valid, and why it isn't. Nothing is stored.

Test your Together AI API key with the models endpoint

Data verified 2026-07-13

Key format & how to get one

Example: abc123...(64 hex) Together AI keys are long hexadecimal strings with no fixed prefix. 1. Sign in at https://api.together.ai 2. Open Settings > API Keys 3. Create a key and copy it 4. New accounts include starter credit

How to test

  1. Copy your key from api.together.ai (Settings > API Keys).
  2. Paste it into the tester above and click Test Key.
  3. Green means valid; red shows the exact error and fix.

Common errors

CauseFix
Invalid or revoked key.Create a new key at api.together.ai (Settings > API Keys).
Rate limit exceeded.Wait a few seconds and retry, or upgrade your plan.

Together AI API docs →

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