"Guide to Using LangChain Correctly" 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.

Per-transaction crypto trade validator for AI agents. Returns deterministic PROCEED / CAUTION / BLOCK verdicts using WaveGuard anomaly detection, history checks, and rug-pull risk analysis.

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

Measure how AI assistants cite your brand. Returns measured data and ready-to-apply fixes.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.

Check if a counterparty is safe to pay: trust/risk score for AI agents. Scam/phishing screen.

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

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

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

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

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

Pre-connect trust checks for AI agents and MCP servers using HVTracker's public trust registry.

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

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

Self-destructing secret sharing for AI agents: encrypted burn links for credentials, plus an agent-to-agent dead-drop with exactly-once claim semantics. RAM-only, no database, open source (MIT). Source: https://github.com/mmmpym/flashpaper

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

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

Sonatype component intelligence: versions, security analysis, and Trust Score recommendations

Secure every MCP server with one governed gateway. Give each AI agent its own scoped MCP access, contain credentials at the gateway, and audit every MCP tool call without wiring agents directly to each server.

JWT-gated LLM gateway: authenticate (bcrypt/JWT), then run a LangChain-on-Vertex Gemini completion.