Faceabot
‹ Back

Catalog › io.github.pcp183/email-verify

Is Email Address Check (syntax, MX, disposable, SPF/DMARC) reliable?

Flaky Partly. Faceabot measured Email Address Check (syntax, MX, disposable, SPF/DMARC) 3 times and only 67% of checks succeeded. Plan a fallback.

Last check: 2026-10-17 10:30 UTC · answered in 1612 ms · remote (no install)

Proven alternatives that work right now

Email Check Reliable (measured) · 100%
Fast email validation at the edge: syntax, MX records, disposable-domain detection. · https://email-check.david-cyr.workers.dev/mcp

MailValid Email Verification Reliable (measured) · 100%
Verify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk. · https://mailvalid.io/mcp/

email-verify-mcp Reliable (measured) · 100%
Validates email syntax, disposable/burner provider status, role accounts, and live DNS records. · https://email-verify-72343955726.us-central1.run.app/mcp/email-verify

Picked from Faceabot's live measurements. Or let Faceabot choose: GET https://faceabot.com/resolve?need=…

En français : Instable. Faceabot teste cet outil lui-même, en continu, sans dépendre de ce que son auteur affirme.

What it does

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

Source: official MCP registry (registry.modelcontextprotocol.io) · version 0.2.0 · publisher website
Connect your agent
{
  "mcpServers": {
    "email-verify": {
      "url": "https://email-verify-production-c20c.up.railway.app/mcp"
    }
  }
}
Or ask Faceabot first: MCP tool check_reliability {"id":"io.github.pcp183/email-verify"} on https://faceabot.com/api/mcp.
Does it actually do the job?

Not tested with a real task yet. Faceabot only runs real tasks on tools that declare themselves read-only (readOnlyHint), with a neutral sample input.

Faceabot measurements
WhenAnswersReal taskLatency
2026-10-17 10:30 UTC❌ gone1612 ms
2026-10-17 02:45 UTC✅ ok—6888 ms
2026-10-16 19:10 UTC✅ ok—7379 ms
Method: MCP initialize then tools/list from Faceabot (FaceabotProbe/1.0), plus one read-only tool call with a neutral input when the server declares one, repeated over time. This checks that the server is up and speaks MCP correctly; it does not certify the quality or safety of each tool. How measurement works.

More from the same publisher

Agent Services (x402): compliance, company, procurement Being measured · 50% over 2 checks Real task being tested · 1/1

27 pay-per-call agent tools (KYB, VAT, sanctions, tenders, data). Pays via x402; holds no funds.

MCP endpoint : https://agent-services-mcp-production.up.railway.app/mcp · website · measurements and details
Airport Weather & Delays (METAR, TAF, FAA) Flaky · 67% over 3 checks

Airport METAR/TAF weather and FAA delays by airport code. $0.003/call via x402.

MCP endpoint : https://airport-weather-production.up.railway.app/mcp · website · measurements and details
Public Holidays & Business Days (200+ countries) Flaky · 67% over 3 checks

Compute deadlines in business days with public holidays (200+ countries). $0.002/call.

MCP endpoint : https://business-days-production.up.railway.app/mcp · website · measurements and details
Company Lookup (GLEIF LEI, UK, Norway) Flaky · 75% over 4 checks

Confirm a company exists and is active (GLEIF, Norway registry). $0.02/call via x402.

MCP endpoint : https://company-lookup-production-5a48.up.railway.app/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

Find tools similar to Email Address Check (syntax, MX, disposable, SPF/DMARC) →

Publisher of Email Address Check (syntax, MX, disposable, SPF/DMARC)?

Show your measured reliability on your README or website:

Faceabot reliability badge for Email Address Check (syntax, MX, disposable, SPF/DMARC)

[![Measured by Faceabot](https://faceabot.com/badge/io.github.pcp183/email-verify.svg)](https://faceabot.com/tools/io.github.pcp183/email-verify)
Data in JSON: /api/catalog?id=io.github.pcp183/email-verify · Stop probes: POST /api/reliability/opt-out

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

Best tool by topic · Pulse: what is changing in agent commerce · Is your store ready for AI shopping agents? · State of MCP (weekly) · MCP server doctor · Reliability data · Faceabot app · Faceabot → AI assistants · What AI agents cannot find yet · Add Faceabot to your AI · Badge for tool publishers · Help · Privacy · Terms