"Diagnosing Issues with My Remote Ubuntu Server Configuration" matching MCP connectors:

Drive real Android & iOS devices and web browsers from natural language for mobile + web QA. 145+ tools across device control, app management, automation sessions, browser automation, and flow recording / replay. Bearer-auth — get a token at robotactions.com → Profile → API Tokens.

Prompt evals over MCP: run a prompt on your dataset, score each output 1-5 with an LLM judge.

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

Hosted MCP server to lint SKILL.md files: packaging checks, regex tests, JSON validation, diffs.

Hosted MCP server for structured code review passes on human- and AI-written code. Free tier.

A fully free linter for agent skill files: lint_skill validates YAML frontmatter, structure, size budgets, and safety phrasing with a pass/fail verdict; packaging_check validates zip layout against marketplace rules; plus regex_test, json_validate, diff_texts, and cron_explain for skill authors. No license or account required.

Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.

X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.61

Exposes FEDLIN's public security scanners as agent-callable tools over Streamable HTTP.

Benchmark-first release surface with a read-only MCP endpoint and operator CLI.

Preflight QA for AI-agent deliverables with structured verdicts and repair guidance.

Deterministic JSON checks with signed evidence and x402-paid execution

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

MCP server: NEED + YIELD + CLEAN-MONEY gates with EIP-3009 attestations · Hive Civilization

Find MCP servers and check whether they actually respond, via live handshake probes.

Grade MCP servers A to F with the open behavioral litmus. npm: full toolset; hosted: lookups only.

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

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

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