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The real catalog of tools for AI agents

Google tells you what exists. Faceabot tells you what holds up.

44,737real tools
29,284callable over HTTPS
19,887measured
6,168proven reliable
x402 DNS Email Auth Checker Reliable (measured) · 100% over 7 checks

Audit SPF, DKIM, DMARC, MX, BIMI, MTA-STS for a domain; score + grade. $0.003 USDC/call via x402.

MCP endpoint : https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp · website · measurements and details
IntoDNS.ai DNS & Email Security Scanner Reliable (measured) · 100% over 43 checks Does the job (tested) · 42/42

DNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.

MCP endpoint : https://intodns.ai/api/mcp · website · measurements and details
DMARC Shark — Email DNS Checker Being measured · 100% over 2 checks Real task being tested · 0/2

Check a domain's public SPF, DMARC, MX and DKIM DNS records on demand. No account required.

MCP endpoint : https://dmarcshark.com/mcp · website · measurements and details
Email Auth Checker Reliable (measured) · 100% over 4 checks Does the job (tested) · 4/4

SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts.

MCP endpoint : https://email-auth-check.quietworklabs.workers.dev/mcp · website · measurements and details
mcp-domain-auditor Reliable (measured) · 100% over 41 checks Fails real tasks · 0/41

DNS resolution, HTTP security headers, and SPF/DMARC email hygiene audits.

MCP endpoint : https://mcp-domain-auditor.stubby76.workers.dev/mcp · website · measurements and details
BlackVeil DNS & Email Security Scanner Flaky · 86% over 7 checks Does the job (tested) · 6/6

DNS and email security scanner with 81 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.

MCP endpoint : https://dns-mcp.blackveilsecurity.com/mcp · website · measurements and details
MX Verdict Flaky · 86% over 7 checks Does the job (tested) · 6/6

Free, read-only email and DNS checks: SPF, DKIM, DMARC, MX, DNS records, blocklists, domain health.

MCP endpoint : https://mxverdict.com/mcp · website · measurements and details
MailX Email Deliverability Flaky · 67% over 3 checks

Check SPF/DKIM/DMARC/BIMI, blacklists, SMTP/IMAP; DNS lookups; generate email DNS records.

MCP endpoint : https://themailx.com/mcp · website · measurements and details
Email Address Check (syntax, MX, disposable, SPF/DMARC) Flaky · 67% over 3 checks

Check email addresses for syntax, MX and disposable domains. $0.0015/call via x402.

MCP endpoint : https://email-verify-production-c20c.up.railway.app/mcp · website · measurements and details
ARC-Relay Being measured · 0% over 2 checks

DMARC-safe email forwarding for agents: aliases, DNS health checks, and MCP tools on your domains.

MCP endpoint : https://arc-relay.com/mcp · website · measurements and details
Domain Trust Check (DNS, Email Auth, TLS, Headers) Flaky · 67% over 3 checks

Check a domain's DNS, SPF/DMARC and TLS before trusting it. $0.003/call via x402.

MCP endpoint : https://domain-check-production-6228.up.railway.app/mcp · website · measurements and details
dns-doctor Flaky · 67% over 3 checks Real task being tested · 0/2

Scan, fix, verify and monitor DNS: SPF, DMARC, DKIM, propagation, health, expiry. Validated fixes.

MCP endpoint : https://dnsdoctor.dev/mcp · website · measurements and details
email-deliverability Being measured · 100% over 2 checks

Scan and fix a domain's email deliverability (SPF, DKIM, DMARC, MTA-STS, BIMI, DNS blocklists).

MCP endpoint : https://mcp.inboxguard.io/mcp · measurements and details
VerifyPulse Email Verification & DNS Security Reliable (measured) · 100% over 31 checks

Real-time RFC 5322 email verification, SPF/DMARC DNS audits & B2B leads (x402 Base USDC).

MCP endpoint : https://verifypulse-seven.vercel.app/mcp · website · measurements and details
AgentDiet B2A Email Deliverability, MX, SPF & DMARC Verifier Being measured · 100% over 2 checks Real task being tested · 2/2

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

MCP endpoint : https://email-verify.agentdiet.dev/mcp · website · measurements and details
InboxGuards Email Check Reliable (measured) · 100% over 23 checks Does the job (tested) · 22/22

Check emails before you send, and get a $1 SPF/DKIM/DMARC fix plan for your domain. Pay per call.

MCP endpoint : https://api.inboxguardstest.com/mcp · website · measurements and details
MailVakt Flaky · 67% over 3 checks Real task being tested · 0/2

Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.

MCP endpoint : https://mcp.mailvakt.com/mcp · website · measurements and details
scan.mx Email Diagnostics Flaky · 67% over 3 checks Real task being tested · 2/2

Email deliverability check: MX, SPF, DKIM, DMARC, blacklists, MTA-STS, DNSSEC, BIMI. Graded, no key.

MCP endpoint : https://api.scan.mx/mcp · website · measurements and details
Mail Security Tools Reliable (measured) · 100% over 16 checks Does the job (tested) · 16/16

DMARC/SPF/DKIM/MX checks, email score, 100-domain bulk score, webhook watch alerts (x402 USDC).

MCP endpoint : https://api.mailsecuritytools.com/mcp · website · measurements and details
deliverability-doctor Reliable (measured) · 100% over 42 checks

Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.

MCP endpoint : https://deliverability-doctor.deliverability-doctor.workers.dev/mcp · website · measurements and details

AI agents: all of this is available without keys over MCP https://faceabot.com/api/mcp · HTTP https://faceabot.com/api/catalog?q=… · Guide : llms.txt

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