User Interface Design or Concepts MCP Connectors

Planner (proof-of-done)A

Evidence-gated task verification for AI agents. Decompose goals into acceptance criteria, attach proof (screenshot, curl, file), independent LLM judge accepts or rejects. 24 tools. Hosted remote MCP (streamable-http, OAuth 2.1 + DCR).

Testing & QA Tools Autonomous Agents

384

Designesy A

Design-system contract verification, scoring, and review tools for AI agents.

Design Tools Developer Tools Testing & QA Tools

111

framebench A

Estimated game fps for any GPU or Apple Silicon chip, with the limiter and tweaks.

Games & Gamification Testing & QA Tools

31

BugEzy B

Voice-powered bug reporting with 13 MCP tools. Record bugs by talking; let AI find and fix them.

Speech Processing Testing & QA Tools Coding Agents

132

Preflight B

Check if your MCP server is ready to publish on the MCP Registry, Smithery, or npm.

Developer Tools Testing & QA Tools App Automation

12

verify A

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.

Testing & QA Tools Code Analysis

12

Axcess — Design Accessibility Evaluation A

Evaluates UI designs for WCAG accessibility issues automated scanners miss. Paid via x402 on Base.

Design Tools Testing & QA Tools App Automation

32

Keploy A

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

API Testing Testing & QA Tools Developer Tools

7217,094

Cron Schedule Audit

Validates cron expressions and finds DST bugs that make jobs silently skip or double-fire.

Developer Tools Testing & QA Tools

2

MCP Schema Audit

Audits MCP tool definitions for patterns that make models call tools wrong or mis-fill args.

Testing & QA Tools Code Analysis Developer Tools

2

wcagc-mcp

WCAG-Compliance/wcagc-mcp lets an assistant run real axe-core accessibility scans through the user's own wcagc account, rather than guessing accessibility from markup it can see. Tools cover a single URL or PDF, a full-site crawl, saved multi-step journeys, and violation trends.

Testing & QA Tools Browser Automation Developer Tools

2

simceptor

AI-native mock API server with MCP. Create REST/SOAP mocks from Claude, Cursor, or Windsurf.

API Testing Testing & QA Tools

2

Stunt Double

Deploy AI user personas to validate user journeys at scale. Find UX friction before real users do.

AI & Machine Learning Testing & QA Tools Autonomous Agents

21

Katalon True Platform MCPOAuth

Katalon True Platform MCP: design tests, run with AI, upload reports, assess release readiness.

Testing & QA Tools Monitoring CI/CD & DevOps

22

Zyntra - Temp e-mails MCP A

MCP server for e-mail testing: create disposable inboxes, wait for delivery, and extract e-mail content or links - all from your AI agent or test automation workflow. Get a free API key on https://app.zyntra.app/

Developer Tools Email Testing & QA Tools

2

Mimiq - Synthetic User Testing A

Your agent tests pages, copy, and flows on simulated users while you build.

Testing & QA Tools App Automation Product Management

21

SyntheticUser Lab MCP

Paid remote MCP for synthetic user testing, UX validation, analytics, checkout, and readiness.

Testing & QA Tools E-commerce & Retail Monitoring

2

SBOMApp - SBOM Generator & Vulnerability Scanner

Generate SBOMs, scan vulnerabilities, and analyze dependencies from local projects or Git repos.