← All headings
Email & messaging
2,949 listings from 1,991 providers, 2,285 answering · counted
Filed by addrbook from the words in each listing, so a heading says what a listing claims to be for.
Showing 1–25, one row per provider, those answering first · names and descriptions as their source publishes them
- 3LT Mail & Faxcom.3lgrouptechnology/3lt-letter-mail · 3lgrouptechnology.comLetters + faxes for AI assistants in one MCP service. Letters from $1.97 all-in; faxes from $0.57.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- AnyHooknet.anyhook/anyhook · anyhook.netA webhook inbox for agents: one call returns a live URL. Mock, verify, inspect and replay.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- com.fluentedi/toolsfluentedi.com49 free agent tools: WHOIS, PDF to text, email checks, FX rates, X12 EDI, JSON repair. No API key.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Lyre Leadscom.lyreleads/lyre-leads · lyreleads.comEvery business of a kind in a city, from Google Maps, read from its website, with verified emails.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- BlackVeil DNS & Email Security Scannercom.blackveilsecurity/dns · dns-mcp.blackveilsecurity.comDNS and email security scanner with 82 MCP tools for SPF, DMARC, DNSSEC, SSL, and brand audits.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- com.jojapi/whatsapp-wyjbaojojapi.comWhatsApp: The WhatsApp Profile Data API lets you programmatically fetch a user’s profile picture.Livechecked Evidence 3/4MCPWebsiteMCP Registry3 more from jojapi.com
- x402 Format Checkercom.crewofthecaptain/format-checker · validate.crewofthecaptain.comIBAN, EU VAT, NIP, REGON, PESEL, email checks. Only $0.001 (0.1 cent) per check via x402 on BaseLivechecked Evidence 3/4MCPWebsiteMCP Registry
- Cameron Rye Portfolio MCP Serverdev.rye/portfolio · rye.devCameron Rye's blog, projects, resume, and live site stats, plus contact and newsletter tools.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- com.postboxservices/postbox-toolsmcp.postboxservices.comFree email checks: 24 blacklists, spoofing grade, redirects, spam test, WHOIS, BIMI, AI readiness.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Qualisend Email Verificationcom.qualisend/email-verification · app.qualisend.comVerify email addresses and clean lists to improve deliverability and sender reputation.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- IntoDNS.ai DNS & Email Security Scannerai.intodns/scanner · intodns.aiDNS and email security: check SPF, DKIM, DMARC, DNSSEC, DANE and build the records. 45 tools.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Bottledemail.bottled/bottled · bottled.emailBranded email on your own domain: send, reply, search, aliases, contacts and campaigns.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Regex/Email/URL Validatorcom.apished/regex-email-url-validator · apished.comRegex matching, email/URL format validation, and JSON Schema validation.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Inside Adsad.inside/inside-ads · app.inside.adTelegram ad exchange: estimate reach and cost with no account, then create and run campaigns.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- getwowlinkcom.getwowlink/mcp · mcp.getwowlink.comCheck link previews (Open Graph, Twitter cards) on X, LinkedIn, Slack; OG images per page.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- com.thejohnsonbros/plumbing-bookingthejohnsonbros.comJohnson Bros. Plumbing: check coverage, services, pricing, availability, and book by SMS.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- ProfessionalHeadshot.ioio.professionalheadshot/professionalheadshot · professionalheadshot.ioLinkedIn, Slack and GitHub profile photo specs, headshot style guides and a free headshot audit.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Waply for Kommoonline.waply/public · waply.onlineWaply for Kommo: read-only info on the official WhatsApp API add-on for Kommo: guides, docs, prices.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- SIMcloudza.co.simcloud/simcloud · simcloud.co.zaSouth African MCP server for airtime, data, SMS, VAS, electricity, balance, and network lookup.Live, sign-in requiredchecked Evidence 3/4MCPWebsiteMCP Registry
- com.domainposture/mcpwww.domainposture.comRemote MCP server: 19 domain-hygiene and email-auth tools (DNS, SPF, DMARC, DKIM, TLS).Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Synopticcom.synoptic/synoptic · mcp.api.synoptic.comFollow live feeds from Twitter/X, Telegram, press releases, SEC filings and more; publish your own.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Friday Flight Dealscom.fridayflightdeals/deals · fridayflightdeals.comThe newest cheap flight deals from the Friday Flight Deals newsletter.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- com.commsharbor/commsharborcommsharbor.comManaged domain email without running a mail stack. Free DNS checks; monthly mailbox packages.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- MailValid Email Verificationio.mailvalid/email-verifier · mailvalid.ioVerify emails: syntax, MX, SMTP mailbox, disposable, role and catch-all checks. Single and bulk.Livechecked Evidence 3/4MCPWebsiteMCP Registry
- Siima eSIMonline.siima/esim · api.siima.onlineSearch travel eSIM plans for 150+ countries and buy via Stripe link; eSIM QR delivered by email.Livechecked Evidence 3/4MCPWebsiteMCP Registry