"Maintaining Consistent Behavior in System Prompts" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
Create and manage test cases, test runs and results in Testiny from your AI assistant.
Uxia brings AI user testing, usability testing and UX research into ChatGPT. It helps product managers, UX designers, researchers and developers evaluate websites, interactive prototypes and digital product experiences using AI-simulated users. Explore potential usability problems, investigate friction in user journeys and use findings to guide product and design improvements.
Check that your AI is being logical. Free tool that mathematically catches contradictions in agent reasoning. No account needed. Also offers paid guardrails that converts natural language to formal verification proofs, that anyone can check succinctly.
Free platform to test MCP clients without installing anything. Create mock tools with dynamic templates, configurable delays, conditions (if/then), and response sequences. Supports JSON-RPC 2.0 over Streamable HTTP. Built-in text_echo and json_echo tools. Rate-limited tiers: anonymous (5 calls/min, 1 mock tool), registered (10 calls/min, 4 mock tools), premium (60 calls/min, unlimited). Zero setup — no install, no registration required. More info: https://www.testmcp.dev
Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.
The world's first named AI prompt quality score. Score, optimize, and compare LLM prompts before they hit any model. Free tier available. Built on PEEM, RAGAS, G-Eval, and MT-Bench frameworks. x402-native on Base.
Write Polyxd UI documents, check them, and show them as real screens in any design-system pack.
What is known to be broken in an MCP server or API operation, with the check that found it.
X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.64
Machine-readable taxonomy of 100+ AI system failure modes spanning factuality, alignment, planning, code generation, and instruction following.
Whether a registry MCP server works for a stock client, and what changed in its tools. Free, no key.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
Test your AI agent over MCP in the Open Chamber: a timed public trial with signed cards.
Tests an AI agent's purchase against the task it was given. Paid per call in USDC via x402.
Give AI coding agents access to your Vynix visual feedback, bug reports, and AI diagnosis.
Accessibility pre-checks (WCAG/BFSG) in a real browser + statement drafts. Pay per call.
Pixel-perfect webpage screenshots rendered in a real browser, full-page or viewport, via one POST.
Generate realistic, FK-consistent synthetic test data for your databases from your AI assistant.
MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes
Pre-commit code quality guardian. Detects semantic drift in AI-generated code.
