"Understanding Cursor Rules in Programming or User Interfaces" matching MCP connectors:
GET /v1/connectors – MCP directory API referenceMatching Connector Tools:
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.
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).
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
Parse WebVTT, SRT, or TTML for conformance, timing, overlaps, line length, and reading speed.
Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.
UI Verify is visual regression testing built for coding agents. Connect the MCP server and your agent (Claude Code, Cursor, Codex) pulls a pull request's UI changes into the conversation, views each visual diff, reads the AI judge's verdict of regression vs intended change, and accepts the intended baselines - all over MCP.
Load testing and synthetic monitoring platform: test with Playwright, Browser Bot, or Protocol Bots.
Generate synthetic random user data for testing, demos, and development without using real persona.
Runs your code against a contract; HELD or BROKE at the exact input. Deterministic. 0.10 USDC/call.
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.
All 36 Edge Thirteen MCP tools (SEC filings, WCAG, entity diligence, more) in one endpoint.
Compare two versions of a JSON row list: what was added, removed or changed, field by field.
X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.62
Test FIX from Claude, ChatGPT, or Cursor: free sandbox FIX sessions or your own FIXSIM instances.
Check what a paid x402 endpoint or MCP server delivered, from probes anyone can repeat.
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.
Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.
ESLint rules key count, body discarded
