Arga raises $10M seed to let AI agents crash in a sandbox, not production
What's the deal? Arga LabsDealroom has a profile for this one. Try Dealroom → has raised $10 million in a seed round led by General Catalyst, with Box GroupDealroom has a profile for this one. Try Dealroom →, Emergence, Gradient, and SV Angel participating. The San Francisco startup, previously backed by Y Combinator, Comma CapitalDealroom has a profile for this one. Try Dealroom →, and Scribble VenturesDealroom has a profile for this one. Try Dealroom →, builds sandbox environments where enterprises can train and test AI agents.
What's the endgame? Arga creates high-fidelity digital twins of third-party services companies already rely on — Stripe for payments, Slack for communications, and the APIs software teams wire together daily. The replicas mirror real APIs and behaviours, so an agent interacts with what feels genuine, but no real payments process and no real messages get sent.
Why now? As firms deploy autonomous AI workflows, traditional testing struggles to catch the messy, multi-step interactions that happen when an agent chains calls across several services. Arga's environments provide full traces and latency data, showing developers precisely where things went wrong.
The platform also removes a practical constraint: rate limits. Training a reinforcement learning model can require thousands of API calls per hour, which hits limits on live services — sandboxed replicas do not.
Who's building it? Arga was founded in 2025 by chief executive officer Phillip Li, a former Amazon executive, and chief technology officer Akira Tong, previously at Stripe and Goldman SachsDealroom has a profile for this one. Try Dealroom →. The team runs lean at four to five employees, making the raise generous per capita. It targets mid-to-large engineering teams building AI coding agents or deploying third-party autonomous workflows.
The signal: The round sits in the 96th percentile for all-time seed deals in US enterprise software, drawn from a sample of 12,056 rounds. That places Arga's early cheque well above the norm — a sign of how much investor appetite is flowing toward the infrastructure that keeps AI agents from breaking things.
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