"Semgrep static analysis tool" 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.

MCP tool observatory: do registry servers answer, and are their answers true? No key.

Verifier-grounded AI promotion gates, disposable report cards, and signed PASS/HOLD/BLOCK receipts.

Email compatibility analysis across 15 clients — preview, audit, fix, diff, deliverability.

130+ QA & dev tools for AI agents: prompt injection, RAG testing, VLM eval, guardrails. Free.

MCP server for static security analysis of Android source code

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.

Flaky test detection, root cause analysis, and fix suggestions for development teams.

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