The challenge
Open banking in LATAM relied on scrapers that broke every time a bank changed its interface. CAPTCHAs, dynamic DOMs and obfuscated code demanded daily maintenance.
Fintech
Trawler
Banking API generator for open banking.
Trawler is a bank API platform for open banking: it lets fintechs connect their users' accounts and read their financial data through a single API.
What it does
- Bank account connection through a secure widget with OTP
- Data extraction with computer vision, resilient to bank portal changes
- Resilient workflows orchestrated with Temporal
- Developer dashboard with a Postman collection and guides
What we built
We designed a robot that “looks” at the portal like a person, using computer vision instead of CSS selectors. A zero-knowledge architecture stores only the public key: at runtime the robot signs each request and opens a session with a registered Device ID, which the bank validates as a real device.
Technology
- Python
- FastAPI
- Temporal
- Playwright
- Computer Vision
- Kubernetes
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