"Using the web version of Perplexity AI" matching MCP connectors:

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.

Scan GitHub-hosted AI skills for vulnerabilities: prompt injection, malware, OWASP LLM Top 10.

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.

Risk-scan a diff, flag AI-generated-code tells, find secrets. 5 of 7 tools need no account.

Proves AI-generated Python does what you asked: lint, types, security, sandbox run, exact fixes.

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

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.

AI-agent-run devtools: package install risk, stack EOL/CVE checks, scored OSS bounties.

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

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.

The official e18e MCP server keeping your agent in check from installing bloated dependencies.

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

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

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

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

Read-only AI coding tools for change verification, release readiness, capacity, and guidance.

Rams is a design reviewer for UI code. The MCP server puts the hosted engine inside a coding agent: the agent passes files to the review_files tool and gets back a 0–100 score with file:line issues and concrete fixes — accessibility, color, typography, spacing, components, UX, motion, craft, and native SwiftUI. Same engine and scoring as the Rams GitHub App. 258 rules, published at rams.ai/rules. Free tier: 30 reviews/month.

OSS libs in your stack, really used: source, tests, callers. C#, Java, TS, Python, Rust, PHP+.

Runs your code against a contract; returns HELD or BROKE at the exact input. Deterministic.