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PayCheck

Security

Designed to keep bad receipts out of your fulfillment flow

API keys scoped to apps

Keys are issued per App, can be rotated, and are rejected if the app or company is disabled.

Expectation enforcement

Require expected amount and account per bank so mismatched transfers fail closed.

Duplicate receipt blocking

Verified receipts cannot be replayed to unlock goods or credit a balance twice.

OAuth + password auth

Users can register with email or Google, Telegram, and GitHub.

Rate limits & quotas

Per-key RPM and monthly quotas protect your integration and our upstream providers.

Operational console

Attester and verification history help your team investigate disputed payments.