How to send an email to someone else MCP Connectors

dns-doctor A

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

Networking & Infrastructure Security

41

~Alter Identity A

Identity infrastructure for the AI economy. Confirms if someone is known; returns inferred traits.

AI & Machine Learning Cryptocurrency Security

1411

quantakrypto pqc-tools (hosted)A

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

gate A

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

Security Agent Orchestration

21

mailverdict A

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

Email Security

21

preflight402 A

Trust verdict for an x402 payment endpoint: health, 402 handshake, price, proceed/caution/avoid.

Payments & Billing Security

11

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

petalbot A

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

Security

11

5arz-proof-of-human A

Prove a real, unique human performed an action; mint a signed, verifiable Proof-of-Human credential.

Security Web3 & Decentralized Tech

61

yandexbot A

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

Security Networking & Infrastructure

11

applebot A

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

Networking & Infrastructure Security

11

Black_Wall x402 Payment Guardrail A

Pre-signature x402 payment-risk oracle. AI agents call forecast_payment before paying a counterparty and get a GO / HOLD / STOP verdict from settlement reputation, price-anomaly (quoted vs the payee's own median), and OFAC sanctions screening — plus a third-party-verifiable Ed25519 signed receipt. Verdict only; never takes custody. Free under $10 at risk; returns an x402 payment challenge over that.

Payments & Billing Security Finance

11

Raziel A

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

Security Autonomous Agents

161

googlebot A

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

Security Networking & Infrastructure

11

bingbot A

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

Security Networking & Infrastructure

11

Nervous System A

Hosted governance layer for LLM agents. Seven mechanically-enforced rules plus audit-chain verification, preflight file protection, session handoff, and an emergency kill switch.

Security Agent Orchestration

331

mcp A

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

Security Networking & Infrastructure

191

"How to send an email to someone else" matching MCP connectors: