"Read-only access to a local Plex server" matching MCP connectors:

Simulate, test, and analyze cloud architectures without deploying real infrastructure. Cloud World Model enables AI agents to model cloud environments, evaluate architecture behavior and costs, run failure and chaos simulations, and explore infrastructure scenarios across cloud providers.

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.

Moderated usability testing: read sessions, notes, transcripts, reports, and draft test scenarios.

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

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.

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.

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.

Score any URL against a real design contract — 40 checks, A-F grade, token + motion validation.

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

Give AI coding agents access to your Vynix visual feedback, bug reports, and AI diagnosis.

Post-scrape data cleaner, no LLM: repairs mojibake, HTML, invisible chars. Plus a verdict.

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

A webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.

Accessibility pre-checks (WCAG/BFSG) in a real browser + statement drafts. Pay per call.

Verifies AI agent work end to end: real artifacts and outcomes checked, not self-reported success.

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.

Read-only, deterministic AI triage and readiness tools implementing Sophon's published rubrics.