Best AI agents for testing apps (2026)
Agents that write and run tests, click through your app and report what breaks. We list 26 tools for testing apps below, each with a link-checked page, pricing as the maker states it and alternatives.
Updated
26 tools: 13 open source, 1 source-available, 3 free or freemium, 8 paid, usage-based or enterprise, 1 pricing on the maker's site.
Tracely
Tracely is open-source, trace-native CI/CD for AI agents: it grades every production trace with evaluators, clusters failures into issues, freezes bad runs into replayable test cases and blocks pull requests that would reintroduce them.
Added
agent-qa (Vostride)
A self-improving AI QA agent with persistent memory that tests web, Android and iOS apps from plain-English test steps, for developers and coding agents.
Added
Microsoft Copilot Studio
Microsoft's low-code platform for building, testing and publishing AI agents that connect to business data, Microsoft 365, Power Platform connectors and MCP servers, then deploy to Teams, websites and other channels.
Added
Midscene.js
Vision-driven UI automation and E2E testing framework where a GUI agent carries out natural-language steps on web, mobile and desktop apps.
Added
MCP Inspector
Official developer tool for testing and debugging MCP servers through a web UI, CLI or terminal UI.
Added
MobileBuildMCP
Sentry's MCP server and CLI that gives coding agents build, test and run tools for iOS and macOS projects.
Added
Shippie
Extendable code review and QA agent that reads your diff, explores the codebase and posts focused review comments.
Added
ripwire
Zero-dependency CLI and MCP server that gives coding agents a ranked call graph, blast radius and tests-to-run before and after edits.
Added
MCPJam Inspector
Open-source testing and evals platform for MCP servers, MCP apps and ChatGPT apps across many clients and models.
Added
BrowserGym
ServiceNow's Gym environment for building, testing and evaluating web agents across browser benchmarks.
Added
Hercules
Open-source testing agent that turns plain Gherkin steps into end-to-end UI, API, accessibility and security tests.
Added
CoTester
TestGrid's AI software testing agent that creates, runs and maintains self-healing tests for enterprise apps.
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Coval
Testing and evaluation platform for voice agents, with simulations, production evals and human QA.
Added
Cypress Cloud MCP
Cypress's MCP server that brings Cypress Cloud test results and accessibility reports into AI coding workflows.
Added
Factory
Agent-native software development platform whose Droids write code, run tests and handle deployments from the IDE, terminal or Slack.
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Momentic
AI testing platform with an AI QA agent that runs and maintains plain-English tests and reports bugs with repro steps.
Added
Parloa
AI agent management platform for enterprise customer service to build, test and scale voice and chat agents.
Added
Tenderly MCP
Tenderly's MCP server for blockchain developers to simulate, debug and test transactions on 100+ networks from AI agents.
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NitroStack
TypeScript framework with decorators and dependency injection for building, testing and deploying MCP servers and MCP apps, with a companion desktop studio.
Added
Encord Agents
Encord's agents that plug foundation models or your own models into labeling workflows to pre-label, segment, track, route and QA image, video and multimodal data, with a no-code catalog and an open-source SDK.
Added
Goose
Extensible open-source AI agent that installs, runs, edits and tests code on your machine with any LLM and MCP extensions.
Added
Unity MCP
MCP tools and CLI that let AI agents develop and test inside the Unity engine.
Added
MATLAB MCP Server
MathWorks' MCP server that lets coding agents run MATLAB code and tests.
Added
Testkube MCP
Testkube MCP server for managing test workflows and executions.
Added
Hamming AI
Testing and QA platform for voice and chat agents that generates scenarios and replays real calls.
Added
KaneAI
AI testing agent that plans, writes and evolves end-to-end tests from natural language.
Added
GitHub repos (16)
| Repo | GitHub stars | Licence | Last push |
|---|---|---|---|
| Goose ↗ | 55,347 | Apache License 2.0 | 2026-10-21 |
| Midscene.js ↗ | 15,311 | MIT | 2026-10-21 |
| MCP Inspector ↗ | 11,095 | Apache License 2.0 (moving from MIT; older contributions stay MIT) | 2026-10-14 |
| MobileBuildMCP ↗ | 6,497 | MIT | 2026-09-23 |
| Unity MCP ↗ | 4,482 | Apache License 2.0 | 2026-10-20 |
| NitroStack ↗ | 2,524 | Apache License 2.0 | 2026-10-18 |
| Shippie ↗ | 2,510 | — | 2026-07-02 |
| ripwire ↗ | 2,455 | — | 2026-10-21 |
| MCPJam Inspector ↗ | 2,269 | — | 2026-10-21 |
| MATLAB MCP Server ↗ | 1,672 | a BSD-style MathWorks licence limited to use with MathWorks products | 2026-10-13 |
| Testkube MCP ↗ | 1,669 | MIT, with some code under the Testkube Community | 2026-10-21 |
| BrowserGym ↗ | 1,407 | — | 2026-10-21 |
| Hercules ↗ | 1,190 | — | 2026-10-14 |
| Tracely ↗ | 1,115 | — | 2026-10-15 |
| agent-qa (Vostride) ↗ | 912 | — | 2026-08-03 |
Top 15 of 16 by stars. Stars and licence come from each repo, checked when the listing was last verified.
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Popular with: Developers · QA engineers · Open-source maintainers
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