TryCase

Overview

TryCase is a cloud-native testing sandbox platform built specifically for AI coding agents. It provides isolated, disposable Linux cloud environments where coding agents like Claude Code, Codex, and Cursor can run applications, execute builds, and perform end-to-end testing without local port collisions or dependency pollution. TryCase captures UI screenshots, console logs, and screen recordings to verify changes automatically. This ensures developers receive verified proof of execution rather than unvalidated code submissions.

What it does

• Spins up isolated, disposable Linux containers in the cloud for individual AI coding agents to execute tasks
• Executes automated end-to-end tests, UI rendering checks, and application builds isolated from local environments
• Captures and returns execution proof including UI screenshots, video recordings, and build console logs
• Exposes a streamlined CLI tool and Model Context Protocol skills interface for external agent workflows.

Who it's for

• AI Software Engineers
• Autonomous Agent Developers
• DevOps & Platform Engineering Teams
• Multi-Agent System Architects

Why it works

• Isolated cloud containers prevent port collisions, dependency bloat, and environment crosstalk on developer machines
• Visual proof artifacts like screenshots and recordings allow human developers to verify agent outputs quickly
• Tool-first architecture integrates seamlessly into existing agent runtimes via CLI and MCP skills protocols
• Clean disposable environments force agents to resolve hidden setup dependencies before declaring task completion.

Founder story

TryCase was founded in 2026 by Ben Chomsang. Running multiple coding agents concurrently, Chomsang frequently experienced local port collisions, dirty dependency installs, and unverified code commits. To solve the problem of agents prematurely marking tasks as complete without real verification, he created TryCase to give every agent a clean, isolated cloud Linux sandbox that returns verifiable execution proof.

Alternatives

• E2B
• Modal
• Fly.io
• Daytona

Comparison overview

• TryCase specializes in returning visual execution artifacts like screenshots and recordings to prove AI agent success, whereas general cloud sandboxes like E2B focus primarily on programmatic code evaluation logs.
• TryCase exposes pre-packaged agent tools and MCP interfaces out-of-the-box, whereas raw container hosts require developers to build custom verification pipelines.