"Using Cursor AI for various purposes" matching MCP connectors:

Test-inbox API for email and SMS: create inboxes, long-poll messages, extract OTPs and links.

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).

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.

Rule engine with built-in simulation. 55 MCP tools for complete business rule lifecycle management.

Promotion gate for AI agents: leakage audits, exact-statistics verdicts, and a live report card.

Hire a real human for real-world verification, product testing, AI output review, and errands.

Pay-per-call AI evaluation MCP server. Score LLM outputs against benchmark rubrics via Workers AI.

Check AI work against requirements and return structured verdicts, findings, and repair steps.

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

Deterministic validation for AI-generated artifacts: JSON Schema, OpenAPI response, SQL syntax.

Generate realistic, FK-consistent synthetic test data for your databases from your AI assistant.

Generate deterministic placeholder image URLs and packs for docs, staging, testing, and AI agents.

Read-only MCP server for the OPERANT AI operating-agent calibration benchmark.

AI website growth audits: SEO, performance, AI readiness (GEO), conversion, a11y, security.

Machine-readable taxonomy of 100+ AI system failure modes spanning factuality, alignment, planning, code generation, and instruction following.

MCP server for the Fail Modes taxonomy — a knowledge base of AI system failure modes

Scan URLs for WCAG 2.1 violations, generate AI fixes, and produce VPAT 2.5 compliance reports.

Webhook relay for AI agents: keyless quickstart, event inspection, replay, mock payloads.

MCP-native AI evaluation: rubric audits, eval suites, and proof reports for AI/LLM output.

Deterministic recipe verification engine — validates AI-generated recipes against master SOPs.