"A tool for finding the best deals on items including PC games across multiple online stores" matching MCP connectors:

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.

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.

Hosted MCP server for structured code review passes on human- and AI-written code. Free tier.

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.

Check exact npm/PyPI upgrades for evidence-backed breaking changes; query APIs and components.

Compile code with thousands of compilers, inspect the assembly, and share godbolt.org links

The official Svelte MCP server providing docs and autofixing tools for Svelte development

Statically audits MCP tool surfaces for token cost, schema quality, and design issues.

JSON/YAML, regex, diff, JWT, SQL dialects — the keyless millisecond ops an agent needs mid-task.

Honest library picks for coding agents in 25-360 tokens. Tells your agent what NOT to install.

Score the privilege a Chrome MV3 extension takes from its manifest, and diff permission sets.

Ground-truth code graph for your codebase: exact callers, callees, symbols & dependencies.

Repository evidence for agents before they adopt dependencies, enter codebases, compare, or merge.

Packagephobia MCP — install-size analysis for npm packages

Discover and install Aura UI Blade components for Laravel, Livewire and Tailwind CSS 4.

Design review for UI code: 291 rules, scored 0-100 with fixes and git-applyable patches.

Zero-install security baseline for AI coding agents — OWASP/CWE-cited rules over MCP.

Static linter for CLAUDE.md-style agent constitution files: 10 operational-guardrail checks.

CVE lookups (NVD) and dependency-manifest audits (OSV) for AI agents. No API keys.