Gmail - Google's Email Service MCP Connectors

DNS Doctor: scan and fix email authentication (SPF, DMARC, DKIM, MX, blacklists). Validated fixes.

41

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.

Code Analysis Security

111

turva-mcp A

Read-only MCP server for turva.dev, an agent-readiness audit and advisory service.

Autonomous Agents Security Developer Tools

41

mailverdict A

Keyless email checks: disposable, role, and free-provider detection, MX, and typo suggestions.

Email Security

21

ContrastAPI A

55 tools, 7 Resources, Sigma rules, email SPF/DMARC, MITRE, CVE/KEV, risk_score. No key.

Security Penetration Testing AI & Machine Learning

55132

dns A

DNS and email security scanner with 80 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

Networking & Infrastructure Security Email

8017

Have I Been Pwned A

Breach intelligence API: email search, domain monitoring, passwords and stealer logs.

Security Search Monitoring

171

Autonoma Agent Services A

Paid agent trust checks, receipt verification, research, data work, and monitoring.

Security Monitoring Research & Data

61

mcp A

Remote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).

Security Networking & Infrastructure

191

scan.mx Email Diagnostics A

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

Email Security Networking & Infrastructure

61

radmail-mcp A

Email OS for agents - real-inbox search, triage, commitments, and a verifiable BEC hard-stop.

Email Security

61

Second Eyes Agent Workflow Services C

Workflow diagnostics, capability routing, and x402 settlement for MCP-compatible agents.

Security Version Control Payments & Billing

111

aicomglobal A

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

Security Agent Orchestration

551

agentrank A

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

Security Autonomous Agents AI & Machine Learning

511

cardguard-mcp A

CardGuard is a high-performance MCP-compliant service designed for real-time transaction fraud detection and IP threat intelligence. It provides microsecond-level scoring and multi-dimensional analysis (IP geolocation, BIN validation, and risk pattern recognition) for autonomous AI agents

Finance Security Payments & Billing

41

auth-token-service C

Hash passwords with bcrypt and issue/verify JWT session tokens over A2A + MCP.

Security Developer Tools

111