YCX26· AI· DevtoolsArga Labs
Real-world sandboxes to test and train AI agents
Founders
- Phillip LiFounder/CEO
- Akira TongFounder/CTO
Same space
Competitors
Closest in what they build, same category.
Adjacent
Overlapping tags, a different niche.
SpurS24Spur is your AI QA Engineer. Test your websites with natural language.Shared: test, external, codeActive
HalluminateS25Data and RL environments to automate knowledge workShared: sandboxe, train, sandboxActive
PlaygentS25Sandboxes for AI agentsShared: sandboxe, sandbox, mcpActive
ButterW25Embedded Sandboxes for AgentsShared: sandboxe, sandbox, agentActive
Ressl AIW26Train, eval and build autonomous agentsShared: train, real, agentActive
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Batchmates in Spring 2026.
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About Arga Labs
We build environments to test your app and agents against the real world. Deploy your code/agent into a sandbox that runs against replicas of external services (Stripe, Slack, Google Drive, etc.). Twins support the same APIs, MCP tool calls & SDKs as the real software, and you can spin up thousands of instances in parallel and seed them using natural language. Run real workflows, surface edge cases, and observe how your code/agents actually behave before hitting production.
San Francisco, CA, USA
Arga Labs: questions
Which YC batch was Arga Labs in?
Arga Labs was in Y Combinator's Spring 2026 batch (X26).
Is Arga Labs still active?
Y Combinator lists Arga Labs as active.
Who founded Arga Labs?
Arga Labs's founders, as listed on its YC page: Phillip Li (Founder/CEO), Akira Tong (Founder/CTO).
Where is Arga Labs based?
Arga Labs lists San Francisco, CA, USA as its location on YC's directory.
Not affiliated with Y Combinator. From YC's public directory. Logos via logo.dev; trademarks belong to their owners.