"Accessing the OpenAI API" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Accessibility and WCAG data for your own websites: fix lists, live checks, and fix validation.
Author and validate Calaf workspace seeds against the app's real importer. No account needed.
Moderated usability testing: read sessions, notes, transcripts, reports, and draft test scenarios.
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
Score any URL against a real design contract — 42 checks, A-F grade, token + motion validation.
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.
Scan GitHub-hosted AI skills for vulnerabilities: prompt injection, malware, OWASP LLM Top 10.
Tests an AI agent's purchase against the task it was given. Paid per call in USDC via x402.
Hire a real human for real-world verification, product testing, AI output review, and errands.
Analyze, audit, fix and diff HTML, MJML, Maizzle and React Email across 21 email clients.
Seven tools over the tabnas parsing engine: parse, validate, diagnose, fixtures, compare.
Deterministic motion compiler + validator: reports WCAG 2.2.2 pause-path candidates, fail-closed.
A skeptical senior-engineer code reviewer over MCP: risk-scans unified diffs, flags AI-generated-code tells, reports complexity hotspots, scans for leaked secrets, and runs an OWASP security pass — real analyzers, no external APIs. Free tier, no signup.
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.
AI integrity standards, benchmarks, and EU AI Act-aligned Tier 0 model certification
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools
Ephemeral mailboxes and a mock OAuth IdP for testing email and auth flows — 39 API-driven tools covering mailboxes, mails, attachments, domains, teams, and mock identities.
Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.
Resolve whether an uncertain side-effecting action completed before software retries it.
Post-scrape data cleaner, no LLM: repairs mojibake, HTML, invisible chars. Plus a verdict.
