Arga Labs

Active

Real-world sandboxes to test agents and agent-facing software

Spring 2026Founded 20253 peopleSan Francisco, CA, USA

www.argalabs.com/ ↗LinkedIn ↗X ↗See on the Idea Map B2B momentum

Generate ideas →

AI insightcan contain mistakes

Agent Testing SandboxesSaaSAI/ML engineers and AI app startupsMedium competition

Moat

Comprehensive replica library of external services (Stripe, Slack, etc.) creates network effect and switching cost.

Key risk

Maintaining parity with rapidly evolving external APIs and competitive tooling landscape.

Why now

Explosive growth in agentic LLM applications creates urgent demand for safe pre-production validation.

Competitors

Anthropic, Replit, Emerging agent testing platforms

About

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.

From their website

as of Jun 7, 2026www.argalabs.com ↗

SaaSSubscription

Arga Labs provides real-world sandboxes that run your code against twins of third-party APIs, MCPs, and CLIs so apps and agents can interact with the real world safely.

Arga Labs creates real-world sandbox environments by simulating or duplicating external APIs, MCPs, and CLIs, allowing AI systems and agents to execute against authentic interfaces without risking live systems. This enables testing and interaction with real-world behaviors in a controlled sandbox before deployment.

Who it’s for: Organizations building AI agents or agent-facing software that need safe, realistic integration testing with external services

Features

Real-world API/CLI sandbox environments
Twin simulations of third-party interfaces
Safe testing for agent interactions
Agent-facing software testing
Isolation from production environments
Support for multiple external services

Founders · 2

Phillip LiFounder

Amazon

Co-founder & CEO @ Arga Labs. Built an internal dev tool @ Amazon to automate complex engineering workflows, resulted in 10+ recurring weeks/year of engineer hours saved across multiple teams, and prevented VP escalations due to bug issues. Before that, I was a fencer on the Canadian Junior National Team and researched cognitive systems at UBC

LinkedIn ↗

Akira TongFounder

Stripe

Co-founder, CTO @ Arga Labs Prev. SDE @ Stripe, quant @ GS Skipped high school, graduated @ 19 Pro player for Identity V, quit because I had to finish my finals :(

LinkedIn ↗X ↗

Launch · 1 launch

Arga Labs: Real-world sandboxes for multi-app agents and software · Apr 2026
View ↗
Production-mirror sandboxes with digital twins of every SaaS integration
Arga Labs provides production-mirror sandbox environments for testing multi-app agents by spinning up twins of external integrations like Stripe and Slack while routing other services to production. Developers or AI agents can automatically generate tests, run them, and receive validated results without corrupting production data.
▲ 121