What is API Key Tester?

API Key Tester is a simple tool to help developers quickly validate API keys across popular AI providers and confirm model availability. It offers a clean UI, instant feedback, and support for custom providers and models.

Why we built it

Switching between providers and keys is common during prototyping and production. This tool reduces friction by letting you verify keys in seconds.

Notes

• Use test/scoped keys where possible.
• Review your provider usage and quota.
• If you hit rate limits, try again later.