Arga Labs has raised $10 million in a seed round led by General Catalyst, with participation from BoxGroup, Emergence Capital, Gradient Ventures and SV Angel. Previously backed by Y Combinator, Comma Capital and Scribble Ventures, the startup builds high-fidelity digital twins of enterprise applications and third-party services such as Salesforce, Workday, email, Stripe and Slack. Its replicas preserve APIs, behaviors, permission systems and webhooks while simulating realistic responses, latency and edge cases, allowing agents to train, test and adapt to complex business workflows without processing real payments, sending messages or corrupting production databases. The resettable environments can run in parallel, while full traces and latency data help developers identify failures. Arga was founded in 2025 by CEO Phillip Li, identified in earlier material as Philip Li, and CTO Akira Tong, whose previous employers include Amazon, Stripe and Goldman Sachs. The company has roughly four to five employees and targets mid-to-large engineering teams building AI coding agents or deploying autonomous workflows. Its approach aims to narrow the reinforcement-learning gap between coding and broader business applications, where agents must resolve ambiguities across multiple systems and contend with real-world rate limits.