PCBLT — Live Checks alternatives
12 MCP servers, A2A agents and x402 APIs that also do email, ranked by how much they overlap with PCBLT — Live Checks (MCP server), live ones first.
Compared
| Name | Type | Live | Tools / skills | Check |
|---|---|---|---|---|
| PCBLT — Live Checks (this one) | MCP server | Yes | – | – |
| alfred_ | MCP server | Yes | – | 55/100 |
| Aerosend | MCP server | Yes | – | – |
| Agent Email List — Free SMTP Relay for AI Agents | MCP server | Yes | – | – |
| Agentboxd | MCP server | Yes | – | – |
| AgentBrink | MCP server | Yes | – | – |
| Agentda | MCP server | Yes | – | – |
| anchor-compliance | MCP server | Yes | – | – |
| ApiOne B2B Enrichment (GCC and MENA) | MCP server | Yes | – | – |
| ARC-Relay | MCP server | Yes | – | – |
| AstraVerify Domain Trust Check | MCP server | Yes | – | – |
| Atomic Mail | MCP server | Yes | – | – |
| Auth Posture — Email Deliverability & Spoofability Audit | MCP server | Yes | – | – |
Live = answered our latest free daily check. Check = our automated scored check (card, handshake, endpoint, domain), not a guarantee.
The alternatives
- alfred_ Live MCP
Your real Gmail, Outlook and calendars, worked as you: read, draft, send, schedule, organize.
MCP server · ai.get-alfred · check 55/100 · also does email
- Aerosend Live MCP
Manage Aerosend cold email domains, mailboxes, tags, warmup, inbox placement and domain burn.
MCP server · io.aerosend · also does email
- Agent Email List — Free SMTP Relay for AI Agents Live MCP
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
MCP server · com.agentemaillist.ai · also does email
- Agentboxd Live MCP
Real email inboxes for AI agents: create addresses, send, wait for mail and verification codes.
MCP server · com.agentboxd · also does email
- AgentBrink Live MCP
Give your AI agent an identity: its own email, webhook, repo, secrets vault, memory and skills.
MCP server · com.agentbrink.www · also does email
- Agentda Live MCP
Agent-native task management: your AI agent is the interface. Delegate to anyone by email.
MCP server · com.myagentda · also does email
- anchor-compliance Live MCP
Australian advertising & marketing compliance for AI assistants. Scan websites, check ad/social/email copy, and look up regulator guidelines (ACCC, TGA, ASIC, AHPRA, ACMA) directly from Claude, ChatGPT, or Cursor. Tools…
MCP server · joshuaogabriel · also does email
- ApiOne B2B Enrichment (GCC and MENA) Live MCP
B2B company, people and email enrichment with cited sources, built for GCC and MENA companies.
MCP server · io.github.MT285 · also does email
- ARC-Relay Live MCP
DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.
MCP server · com.arc-relay · also does email
- AstraVerify Domain Trust Check Live MCP
Email security and AI discoverability scores for any domain, with the exact record or tag to fix.
MCP server · com.astraverify · also does email
- Atomic Mail Live MCP
Programmable email inbox for AI agents — JMAP, PoW auth, stdio MCP server.
MCP server · io.github.Atomic-Mail · also does email
- Auth Posture — Email Deliverability & Spoofability Audit Live MCP
One-call domain audit: MX receiving, SPF/DMARC/DKIM spoofing protection, disposable-address risk.
MCP server · app.rowb.auth-posture · also does email