"Latest tool requiring Google login" matching MCP connectors:

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.

みんなのテスター（スキマラボ）公開情報MCP。Google Playクローズドテストのテスター集めを支援する相互テストコミュニティの情報を提供する。

Audits MCP tool definitions for patterns that make models call tools wrong or mis-fill args.

MEOK MCP Test MCP — golden-file + schema-drift + tool-failure tests for any MCP server. Drop-in

Scan your MCP server for EU AI Act Art. 50 compliance, tool quality, OAuth hygiene, and security issues before you ship. Developer $19/mo, Team $49/mo. A technical preflight check, not legal advice.

Score MCP tool definitions 0-100. Checks names, schemas, annotations, and uniqueness.

Audits any MCP server for command injection, path traversal, missing auth, hardcoded secrets, SQL injection, SSRF and tool poisoning. Returns grade A-F with CVE references. Malicious servers flagged network-wide after audit. Now with shared learning brain.

Security scanner for MCP servers. Detect vulnerabilities, prompt injection, and tool poisoning.