MCP servers for testing

Every testing server in the official MCP Registry, 85 in all, ranked by how closely it fits. 72 work without an API key. Each row shows the security checks, the secrets asked for and an install command.

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testing MCP servers 85

MCP servers, testing, most relevant first
Type Secrets Version Actions
★ 17 io.github.AishwaryShrivastav/vibe-testing

Code-aware browser testing agent — 14 Playwright tools for AI code editors via MCP

7/7All passed66health of 100npmRuns locallyNoneno keys asked0.4.6
★ 13 io.github.cocaxcode/api-testing-mcp

MCP server for API testing. 35 tools: HTTP, assertions, flows, OpenAPI, collections.

7/7All passed45health of 100npmRuns locallyNoneno keys asked0.11.12
★ 4 io.github.chriswu727/argus

Testing MCP for coding agents: exercise real user journeys, find bugs, verify them with evidence.

7/7All passed66health of 100PyPIRuns locallyNoneno keys asked0.11.0
★ 1 com.glockapps/mcp

Inbox placement tests across Gmail, Outlook, Yahoo and 30+ providers.

3/3All passed50health of 100RemoteHostedNoneno keys asked1.0.0
io.github.Schoasch/backtesting-arena

Crypto backtesting & Bitcoin cycle analytics. Point-in-time, DSR-corrected, look-ahead-aware.

4/4All passed43health of 100RemoteHostedNoneno keys asked1.13.0
★ 19k io.github.keploy/mcp

End-to-end API testing — generate and run tests from OpenAPI, curl, Postman, or real user traffic.

3/3All passed87health of 100RemoteHostedNoneno keys asked1.0.0
★ 13k io.github.seleniumbase/seleniumbase

Stealthy browser automation, testing, and web-scraping via CDP Mode.

6/71 warning85health of 100PyPIRuns locallyNoneno keys asked4.56.4
★ 10k io.github.mobile-next/mobile-mcp

MCP server for iOS and Android Mobile Development, Automation and Testing

7/7All passed93health of 100npmRuns locallyNoneno keys asked1.0.14
★ 420 io.github.koreal6803/finlab-ai

Quantitative trading toolkit with 900+ data columns, backtesting, and 60+ strategy examples.

4/4All passed70health of 100RemoteHostedNoneno keys asked1.1.0
★ 398 io.github.ai-dashboad/flutter-skill

AI-powered E2E testing for 10 platforms. 253 MCP tools. Zero test code needed.

6/71 warning69health of 100npmRuns locallyNoneno keys asked0.9.36
★ 398 io.github.telsav/flutter-skill

AI E2E testing bridge — give AI eyes and hands inside any app. 8 platforms, 40+ tools.

6/71 warning69health of 100npmRuns locallyNoneno keys asked0.7.6
★ 244 io.github.PramodDutta/qaskills

Search, inspect, and install 400+ QA testing skills from qaskills.sh into any MCP client.

7/7All passed69health of 100npmRuns locallyNoneno keys asked0.1.2
★ 182 io.github.satelliteoflove/godot-mcp

Agent-driven Godot playtesting: editor control, input injection, game-time stepping, live state.

7/7All passed78health of 100npmRuns locallyNoneno keys asked4.1.11
★ 156 io.github.WaterTian/wechat-devtools-mcp

MCP Server for WeChat DevTools CLI - Automate development & testing with 7 aggregated APIs.

7/7All passed71health of 100PyPIRuns locallyNoneno keys asked0.9.20
★ 140 io.github.hidai25/evalview-mcp

Regression testing for AI agents. Golden baselines, CI/CD, LangGraph, CrewAI, OpenAI, Claude.

6/71 warning74health of 100PyPIRuns locally1secret asked0.6.0
★ 135 io.github.KryptosAI/mcp-observatory

MCP security scanner. CI-native testing, attack simulation, health scoring, and SARIF.

5/72 warnings73health of 100npmRuns locallyNoneno keys asked1.36.1
★ 107 io.github.sathergate/flagpost

Feature flags for Next.js. One file, full control with A/B testing.

7/7All passed55health of 100npmRuns locallyNoneno keys asked0.1.1
★ 52 io.github.rafsilva85/credit-optimizer

Optimizes Manus AI credit usage by 30-75% via intelligent model routing and smart testing.

7/7All passed50health of 100PyPIRuns locallyNoneno keys asked5.2.0
★ 37 io.github.jongalloway/dotnet-mcp

AI assistant access to .NET SDK for projects, packages, building, testing, and development tools.

4/4All passed62health of 100NuGetRuns locallyNoneno keys asked1.1.2
★ 33 io.github.NeuZhou/stratevo

Quantitative trading: quotes, backtesting, screening, and genetic algorithm strategy evolution.

7/7All passed45health of 100PyPIRuns locallyNoneno keys asked6.0.3
★ 32 com.mcparmory/browserbase

Create and control browser sessions for web automation, testing, and AI agent tasks

7/7All passed51health of 100PyPIRuns locallyNoneno keys asked1.0.4
★ 29 io.github.localstack/localstack-mcp-server

A LocalStack MCP Server providing essential tools for local cloud development & testing

7/81 warning63health of 100npmRuns locally7secrets asked0.5.0
★ 28 io.github.nirholas/solidity-compiler

Browser Solidity compiler IDE - smart contract development testing deploy

2/2All passed55health of 100RemoteRuns locallyNoneno keys asked1.0.0
★ 26 io.github.operantlabs/operant-mcp

Security testing MCP server for penetration testing, forensics, and vulnerability assessment

6/71 failed26health of 100npmRuns locallyNoneno keys asked1.0.1
★ 25 io.github.igrlk/uiverify

Visual testing for coding agents: your agent sees every UI change it makes and triages each diff.

3/3All passed58health of 100RemoteHostedNoneno keys asked1.2.0
★ 22 io.github.sapiom/mcp

Local Sapiom developer MCP for authoring, testing, deploying, and inspecting agents.

7/7All passed63health of 100npmRuns locallyNoneno keys asked0.20.0
★ 19 ai.orangepro/mcp

Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.

7/7All passed69health of 100npmRuns locally2secrets asked0.2.59
★ 19 io.github.OrangeproAI/orangepro

Find test gaps, generate grounded tests, and dynamically prove behavior with mutation testing.

7/7All passed69health of 100npmRuns locally2secrets asked0.2.12
★ 16 io.github.demwick/polymarket-agent-mcp

Polymarket trading, market discovery, copy trading and backtesting — 48 MCP tools.

7/81 warning55health of 100npmRuns locally4secrets asked1.7.0
★ 15 io.github.monkeywave/frida-mobile-mcp

Mobile Frida MCP Server - AI-powered mobile app exploration and testing via Frida instrumentation

7/7All passed67health of 100npmRuns locally1secret asked0.6.0
★ 12 io.github.electron-stagewright/core

Agentic UX testing for real Electron apps: launch, inspect, interact, and assert through MCP.

6/71 warning65health of 100npmRuns locallyNoneno keys asked0.7.0
★ 11 io.github.smbcloudXYZ/xcrs

MCP tools for testing mobile and TV apps on iOS simulators, Android phones, and Apple/Android TV.

3/41 warning55health of 100CargoRuns locallyNoneno keys asked0.7.5
★ 11 io.github.enessubass/mobiloop-mcp

Guarded AI mobile Appium testing, security scanning, verification, and fix-retest MCP tools.

4/4All passed58health of 100DockerRuns locallyNoneno keys asked0.1.0-alpha.15
★ 11 io.github.Xplo8E/hacktricks-mcp-server

Search and query HackTricks pentesting documentation with quick lookup and section extraction

6/71 warning40health of 100npmRuns locallyNoneno keys asked1.3.4
★ 10 io.github.austin-starks/nexustrade-mcp

Quant research, backtesting, marketplace subscriptions, editable forks, copy trading, and execution.

3/3All passed62health of 100RemoteHostedNoneno keys asked1.0.1
★ 9 io.github.zomma-dev/quantcontext

Deterministic stock screening, backtesting, and factor analysis for AI trading agents

7/7All passed54health of 100PyPIRuns locallyNoneno keys asked0.1.2
★ 9 ai.com.mcp/petstore

Swagger Petstore API (v1.0.27) as MCP for testing and prototyping powered by the HAPI MCP server

4/4All passed49health of 100RemoteHostedNoneno keys asked0.6.0
★ 7 io.github.fastslack/e2e-runner

JSON-driven E2E test runner with parallel Chrome pool execution and 16 MCP tools.

7/7All passed47health of 100npmRuns locallyNoneno keys asked1.3.0
★ 6 io.github.Xerolo44/rpgmaker-mv-mcp

MCP server for reading, editing, and playtesting RPG Maker MV projects

7/7All passed58health of 100npmRuns locallyNoneno keys asked0.5.1
★ 4 io.github.jrpool/kilotest

Ensemble testing of web pages for accessibility, usability, and web standards

4/4All passed54health of 100RemoteHostedNoneno keys asked60.9.1
★ 4 io.github.Wopee-io/wopee-mcp

AI testing agents for web apps — dispatch test runs, crawls, fetch artifacts and status.

7/7All passed57health of 100npmRuns locally1secret asked1.32.0
★ 4 io.github.anilloutombam/mcp-failure-lab

Deterministic fault-injection server for testing how MCP clients handle failures and recover.

7/7All passed70health of 100npmRuns locallyNoneno keys asked0.13.1
★ 4 ai.getminds/minds

Run AI market research: synthetic customer panels for concept testing, message testing, segments.

3/3All passed58health of 100RemoteHostedNoneno keys asked2.0.2
★ 3 io.github.skulitom/anode

Background Windows desktop for AI agents: native GUI automation, screenshots and app testing.

4/4All passed48health of 100MCPBRuns locallyNoneno keys asked0.11.3
★ 3 io.github.USHIKUNDESUYO/shiwake-mcp

Journal entry testing (JET) for accounting audits. 15 screening rules, zero dependencies.

7/7All passed53health of 100npmRuns locallyNoneno keys asked0.3.1
★ 3 io.github.MikhailHal/ariadne

Returns only the unit tests affected by your current Kotlin/Android code changes.

4/4All passed45health of 100DockerRuns locallyNoneno keys asked0.4.0
★ 2 io.github.jarbon/carbon

AI testing harness with Jay: risk-based checks, bug investigation, and local evidence reports.

7/7All passed52health of 100npmRuns locallyNoneno keys asked1.32.22-free.17
★ 2 io.github.tidynest/raven-nest-mcp

AI-driven penetration testing - 22 security tools behind safety-hardened MCP endpoints

4/4All passed51health of 100DockerRuns locallyNoneno keys asked0.4.1
★ 2 io.github.copyleftdev/kahea

Deterministic HTTP/WebSocket testing and policy-gated API execution for AI agents.

5/61 warning60health of 100MCPBRuns locallyNoneno keys asked0.3.1
★ 2 io.github.skuzadev/wpfpilot-mcp

Automate Windows WPF apps from AI agents with semantic UIA selectors and FlaUI test generation.

7/7All passed44health of 100npmRuns locallyNoneno keys asked0.1.1

Showing 1 to 50 of 85. These are the most recently updated; search or pick a category for the rest.

testing MCP servers: what to know before you pick one

Which testing MCP server should I use?

Among community builds, the most-starred on GitHub are Vibe Test — Browser Testing Agent (★ 17), api-testing-mcp (★ 13) and Argus — Testing for Coding Agents (★ 4). If you want one that passed every check, Vibe Test — Browser Testing Agent did.

Can I trust these testing MCP servers?

On registry checks, 72 of 85 come out clean. We also read the code or live tool list of 61 of them without running anything, and 9 raised a warning worth reading, such as an install script or text aimed at the AI. Treat a pass as "nothing found", and give any server the least access that works.

How do I add a testing MCP server to Claude?

To connect testing through Vibe Test — Browser Testing Agent, use this Claude Desktop (npm) entry: { "mcpServers": { "vibe-testing": { "command": "npx", "args": [ "-y", "vibe-testing@0.4.6" ] } } }. Pin the version shown before you rely on it.

Do I have to install a testing MCP server?

29 can run hosted, so you only paste a URL into Claude, Cursor or VS Code. The 59 that run locally ship as 39 npm, 11 PyPI, 3 Docker, 3 MCPB bundle, 1 NuGet and 1 Cargo packages.

Which testing MCP servers need no API key?

72 of the 85 list no secrets, including Vibe Test — Browser Testing Agent, api-testing-mcp and Argus — Testing for Coding Agents. Some still ask you to sign in once they run.

Who makes these testing MCP servers?

No company-verified one yet (checked 31 Oct 2026). All 85 testing servers are community builds from 84 different publishers, so check who is behind one before you hand it a testing key.

More topics: every “MCP server for…” page. Prefer a skill? Claude skills for this (1,373).