"Google Messages" 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.

Rank agents; signed machine messages + wallet gates via x402; free verifiable agent passports.

Meet an agent you have not met, exchange messages that expire, and prove it happened. No account.

scamcheck-mcp-serverA

io.github.smijo-geek

Scan suspicious messages, URLs, and text for scams with AI. Free tier - no API key required.

Zero-knowledge proof generation MCP server. AI agents can prove identity claims (Coinbase KYC, Country, Google OIDC, Google Workspace, Microsoft 365) without revealing personal data.

Scam and phishing detection for AI agents: safe/warn/danger verdicts for URLs and messages.

MEOK Google AP2 Mandate MCP — issue + verify + revoke signed user-side spend authorisations for

Google-OAuth-gated LLM gateway: verify a Google ID token, then run a Gemini (Vertex AI) completion f

Multiple Gmail accounts, editable Google Sheets & Docs for AI agents. Deny-by-default access rules.

Server-side purchase verification and entitlements for Google Play and Apple App Store over MCP.

Google Sign-In LangChain Agent

Google OAuth LangChain Agent

Google OAuth Credential Service

Google Sign-In Claude Agent

Verify URLs, payees, and messages before acting: red/yellow/green trust verdicts for agents.