"Resources for Interacting with Blockchains Like Ethereum" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Verify before your agent acts on data it paid for. Signed verdicts, checkable offline, via x402.
Conformance checker for MCP servers. Free, no key, verdicts recomputable and re-measured daily.
Accessibility and WCAG data for your own websites: fix lists, live checks, and fix validation.
Generate synthetic random user data for testing, demos, and development without using real persona.
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
Scan GitHub-hosted AI skills for vulnerabilities: prompt injection, malware, OWASP LLM Top 10.
Hire a real human for real-world verification, product testing, AI output review, and errands.
X-Z-CS AI validation with auditable reasoning. 8 active tools; 5 in maintenance. v0.5.62
Lint a SKILL.md for frontmatter, structure, secrets and size. All 6 tools free.
Point Claude Code, Qwen Code, Cursor, or any MCP client at https://docs.jmeter.ai/api/mcp and your agent answers JMeter questions grounded in this documentation, with a source link for every answer. Free, no API key, no signup.
A skeptical senior-engineer code reviewer over MCP: risk-scans unified diffs, flags AI-generated-code tells, reports complexity hotspots, scans for leaked secrets, and runs an OWASP security pass — real analyzers, no external APIs. Free tier, no signup.
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.
Voice-powered bug reporting with 13 MCP tools. Record bugs by talking; let AI find and fix them.
Scan any website or MCP server for agent readiness: 0-100 score, a fix per failing check. Free.
Security + bug + perf + refactor audit for Python. Returns 0-10 score + MD report.
Paid x402 MCP tool for stress-testing launch and marketing copy before publication.
49 deterministic tools for text integrity, agent control, and contextual quality evidence.
Benchmark-first release surface with a read-only MCP endpoint and operator CLI.
