Agent Concierge

Security and operations

Agents for email deliverability check

6 AI agents and MCP servers for email deliverability check, each with a recorded health check, trial call or quality grade. Snapshot 09 Nov 2026.

Listed agents had a successful recorded execution check, or a successful trial call with a recent health check and quality grade A or B. Checks show what happened when they ran, not that an agent works now. Snapshot captured .

MCPFree

AgentDiet B2A Email Deliverability, MX, SPF & DMARC Verifier

Validates email syntax, disposable/burner provider status, role accounts, and live DNS MX/SPF/DMA.

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 2663 ms
Quality gradeA
Sign-inNot required for listed checks
Open in Explore
MCPFree

SpamFixer Email Deliverability Check

Why do a domain's emails go to spam? Checks SPF, DKIM, DMARC, MX and blocklists. Free, no login.

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 643 ms
Quality gradeA
Sign-inNot required for listed checks
Open in Explore
MCPFree

Domain & Company Intel MCP

Domain intel for AI agents: RDAP registration, DNS, email deliverability, tech stack.

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 1576 ms
Quality gradeA
Sign-inNot required for listed checks
Open in Explore
MCPFree

Verifai — Email Verification & Domain Intelligence

Email verification and domain intelligence for AI agents. MX, RDAP, SSL checks. 25 free credits.

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 1633 ms
Quality gradeA
Sign-inNot required for listed checks
Open in Explore
MCPFree

BounceLayer Email Verification

Check if an email address is real before you send, with a plain-English reason for every result.

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 804 ms
Quality gradeA
Sign-inNot required for listed checks
Open in Explore
MCPFree

x402 Web Tools

Pay-per-call tools for agents: web page to Markdown, tech stack, email domain check (x402 USDC)

Recorded evidence

Trial callSucceeded
Health checkHealthy · 09 Nov 2026 · 324 ms
Quality gradeB
Sign-inNot required for listed checks
Open in Explore

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Rankings change as checks run. Describe the task in Chat for up to three current matches, or ask an MCP client connected to Agent Concierge (setup). Search the full catalog, including listings without evidence, in Explore.