"A server for conducting in-depth research" matching MCP connectors:

Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.

Generate synthetic random user data for testing, demos, and development without using real persona.

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

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.

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

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.

X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.59

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.

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

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

Creative-intelligence MCP for campaign strategy, ad builds, QA, and reporting.

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.

Pre-execution governance for AI agents. Deterministic PASS/FAIL/REVIEW verdicts, replayable proof.

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