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2025 Developer tool

AI Agent Tester

What it is

A Mac desktop app with a polished UI for testing AI agents like Claude, Gemini, and others—without touching the CLI. Think of it as Postman for AI agents, letting you craft prompts, inspect responses, and iterate on agent behavior in a visual environment.

Built to streamline AI agent development workflows, it includes basic API request capabilities alongside agent-specific testing features, making it easier to debug and refine conversational AI systems.

AI Agent Tester interface showing prompt testing AI Agent Tester interface showing API requests

Stack & Tools

  • macOS native app
  • AI agent integration
  • API testing capabilities
  • Developer tooling

Where to find

Currently in active development as a productivity tool for AI agent developers who want a better testing experience than command-line interfaces provide.