"How to check differences between files" 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.

One-step legal compliance for vibe-coded apps: privacy, terms, cookie banner and EU AI Act check.

Deterministic gate for AI agents: ALLOW/DENY a step before it runs, sealed to a verifiable receipt.

EOL dates and risk scores for 485 software products. Check versions, score risk, audit stacks.

Verify B20 tokens on Base: issuer powers, imposter detection, signed EIP-712 verdicts.

Validate whether an IP address belongs to YandexBot. Remote MCP server exposing a validate_ip tool.

Validate whether an IP address belongs to Applebot. Remote MCP server exposing a validate_ip tool.

Trust scoring for x402 endpoints — "should my agent pay this?" check_endpoint runs live diligence: x402 spec-compliance probe, price sanity vs market percentiles, payTo wallet on-chain activity (Base), directory presence, infra hygiene. Returns 0-100 score with per-check evidence. compare_price positions any price vs category market data. Pay-per-call via x402: $0.02/call USDC on Base, no account or API key. tools/list free.

MCP server teaching AI agents to implement TideCloak: auth, E2EE, IGA, security analysis

Validate whether an IP address belongs to Googlebot. Remote MCP server exposing a validate_ip tool.

Live x402 endpoint trust/diligence check before you pay it. $0.02/call via x402.

check-package: block malicious npm/PyPI deps before your AI agent installs them. Free, no key.

Trust Graduation gate: Claude can do real work once Mission decides what it is allowed to do.

Check email deliverability for a domain: MX, SPF, DKIM, DMARC, blacklists. Graded, no key.

x402-gated safety checker for npm and PyPI packages. Built for AI coding agents to call before running npm install or pip install — flags nonexistent/typosquatted names, known CVEs (OSV.dev), and suspiciously new or low-download packages. $0.005 USDC per check on Base mainnet

Free no-account URL security scan: 0-100 Launch Readiness score for any live site in ~15 seconds.

Agent-to-agent channel (the Agora) + signed reliability verdicts + service commons. MCP + A2A.

Is this AI agent or x402 service real and settlement-backed before you pay it? Trust check.

Compliance & security scan for your app: secrets, exposed files, headers, privacy, AI-disclosure.

Anchor a content-creation event to the Knox chain; returns a C2PA-aligned, FRE 902-shaped bundle.