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API Playground

Pick any API, paste your X-API-Key, tweak the body and fire a real request — everything happens in your browser.

All APIs
Business 4-Factor Verification →

Verify the consistency of a company name, Unified Social Credit Code (USCC), legal representative name, and legal representative ID number to ensure business information is authentic and prevent fraudulent registrations and risks.

Try it out

Paste your X-API-Key, tweak the body, and fire a real request. Great for integration & regression checks.

POSThttps://openapi.toolkk.com/v1/enterprise-four-validate

Without an API key the request will go out anonymously and may be rejected by the gateway.

// Response will appear here after you send the request