API keys and credits
Updated 2026-10-28
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An API key for the Lookproof API comes with a plan that sets how many credits it can use each month and how many requests it can send per minute. When the credits of a key are used up, the API answers 429 with a link to this page.
To get more credits, a key for a new project or a plan that fits your traffic, write to [email protected]. Tell us which account the key belongs to and roughly how many checks you run per month.
Paying per request instead
Without a key, every endpoint can still be paid per request with x402 in USDC. The pricing page shows the price of each check.