"Open-source API development tools for Linux with Markdown support" matching MCP connectors:
GET /v1/connectors — MCP directory API referenceMatching Connector Tools:
Can AI actually read your page? ChatGPT, Perplexity and other answer engines fetch pages very differently from your browser. Paste a URL — Lekta fetches it exactly the way they do and grades it A+ to F, with the spec or measurement behind every finding.
Canonicalize Tailwind classes to their short form, and search LunarWerx free dev tools.
Scan code for quantum-vulnerable cryptography and get NIST post-quantum migration guidance.
Hosted, OAuth-gated endpoint for quantakrypto's post-quantum crypto tools: scan code for quantum-vulnerable cryptography (RSA/ECDH/ECDSA/DH) and get NIST ML-KEM/ML-DSA/SLH-DSA migration guidance over authenticated HTTP — nothing to install. Sign-in required (Google/GitHub/email). Same tools as the open-source @quantakrypto/mcp server; source at github.com/quantakrypto/pqc-tools.
Drupal core API changes, contrib usage, upgrade readiness, patch verdicts, code search, SQL.
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.
AI product expert answering from live source code, with sources and a verification status.
Scan GitHub-hosted AI skills for vulnerabilities: prompt injection, malware, OWASP LLM Top 10.
Scan any public GitHub MCP-server repo for security issues. 37 MCP-specific L1 rules, 8 languages.
Agentic code review, no signup to try: reality gates + frontier-model review, with veto.
Checks AI-written SvGrid code against the real API, plus version-pinned Svelte 5 grid docs.
Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.
Lint a SKILL.md for frontmatter, structure, secrets and size. All 6 tools free.
Fleet entry point: 19 hosted MCP servers, 132 tools, 92 free. Searches 138 agent skills.
Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.
Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.
Format/lint JS, Python, HubL for automation platforms. Tools: format_code, format_json, ask_codefmt
Packagephobia MCP — install-size analysis for npm packages
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.
