Migration from FPJS

Drop-in FingerprintJS Pro replacement: 132/132 signal parity, compatible API schemas, and parallel testing guide

Drop-In Replacement

tracio.ai is designed as a drop-in replacement for FingerprintJS Pro. The client SDK API follows the same patterns, and the Server API response schema is protocol-compatible.

Migration Steps

1. Install the tracio.ai client SDK — Replace @fingerprintjs/fingerprintjs-pro with @tracio/client
2. Update your server endpoint — Point to your tracio.ai server instead of api.fpjs.io
3. Update API keys — Generate new API keys from your tracio.ai deployment
4. Test in parallel — Run both systems side by side during transition
5. Cut over — Once validated, disable the FingerprintJS Pro integration

Client-Side Changes

// Before (FingerprintJS Pro)
import FingerprintJS from '@fingerprintjs/fingerprintjs-pro';
const tracio = await FingerprintJS.load({
  apiKey: 'old-api-key',
  endpoint: 'https://api.fpjs.io',
});
// After (tracio.ai)
import Tracio from '@tracio/client';
const tracio = await Tracio.load({
  apiKey: 'new-api-key',
  endpoint: 'https://api.tracio.ai',
});
// The rest of your code stays the same
const result = await tracio.get({ extendedResult: true });

Signal Parity

tracio.ai provides 100% signal parity with FingerprintJS Pro for web-based detection:

• 132 browser signals matching FPJS output exactly
• 14 additional custom signals for enhanced detection
• All 24 smart signals supported
• Protocol-compatible Server API responses