Who Builds Agents

Email, SMS and messaging MCP servers

1,091 companies publish 1,440 MCP servers for email, phone numbers, SMS and team messaging. Alpic, JoJ API and GoAI Moat ship the most.

Ranked by servers shipped, top 100

  1. 1AlpicAlpic's all-in-one cloud platform provides the infrastructure and tooling to turn your product into an AI-native experience. Build, deploy and monitor your ChatGPT apps and MCP servers. We'll handle the rest.66
  2. 2JoJ APIJoJ API is an API marketplace for web scraping, search and real-world data APIs. Subscribe to any API with one key, one gateway and one wallet — free playground on every endpoint.49
  3. 3GoAI MoatGoAI Moat makes brands visible to AI: a GEO+SEO service that gets websites cited by AI, plus an AI-visibility MCP for AI agents.30
  4. 4CIVAIExperience the next era of technological advancements with CIVAI, leveraging artificial intelligence for transformational breakthroughs23
  5. 5dinglebear.aidinglebear.ai23
  6. 6ChippChipp builds AI agents and custom software that do your busywork, with HIPAA and SOC 2 built in. Book a free 20-minute build session.21
  7. 7waystation.aiwaystation.ai12
  8. 8APIShedapished.com11
  9. 9Autonomous Business UnitsAutonomous Business Units — AI you can build on, own, and back.7
  10. 10BootstrapwareEmbed production SaaS components: CSV import, feedback, chat, onboarding, comments, RFQs, and source-backed answers, without venture pricing or a seat tax.7
  11. 11InfrastructureLogin, deploy, dados, cobrança, funções, monitoramento e e-mail com servidor MCP e OAuth 2.1 nos sete produtos. Em português, para quem fatura em real.7
  12. 12ShveikShveik crafts quality software with a focus on simplicity and functionality. We specialize in web development, desktop development, solution architecture, consulting, and AI & Machine Learning.7
  13. 13ChargezenChargezen is the revenue platform brands run on: AI agents for every chat, call and email, text and email marketing, upsells, creators and subscriptions.6
  14. 14HatchLoopVerify any company, screen sanctions, check trade restrictions, then message and book with real businesses - compliance enforced. 23 tools, 12 free.6
  15. 15MailKiteReceive any message as a webhook, send with one API — across unlimited domains and mailboxes, free. No mail server, no MX/SPF/DKIM/DMARC to rebuild for every launch. The email platform for developers, teams, and the agents they build.6
  16. 16ProtoductAI StudioProtoductAI株式会社（プロトダクト）は京都のAIスタジオです。生成AIとAIコーディングで自社アプリを最速で開発・リリースするほか、AI研修・コンサルティングと受託開発を行っています。6
  17. 17WireCatConnect your AI agent to Telegram, MAX, WhatsApp, email and notes. Search conversations, gather context and prepare replies with free, open-source tools.6
  18. 18basenullGovernance, security, observability, and workforce enablement for IT teams running AI in production.5
  19. 19ClizeAn identity for your AI agent: a free handle with a site and an inbox, verification codes it reads itself, replies you approve, domains, deploys and payments. CLI / MCP — Claude Code, Codex and any agent that runs skills or MCP.5
  20. 20kymac.cokymac.co5
  21. 21MintiveGive every team agents they can trust. Mintive gives every agent its own identity and governs access to models and tools by role.5
  22. 22tootie.tvtootie.tv5
  23. 23appin60.comappin60.com4
  24. 24aiones.ccaiones.cc3
  25. 25Odile LabsOdile Labs builds communication infrastructure connecting people, businesses and AI agents: After Hours for calls, Direct and Gate for AI agents.3
  26. 26Rooster AgentsRooster builds and runs the AI marketing machine behind MON$TER MONEY ambassadors and the Data Kings & Queens, so they become the #1 name in their market for monetizing business data. Just text Rudy.3
  27. 27SiteyPut the site you built with AI on your own address in 30 seconds. No sign-up. Point a name at Vercel, Netlify, GitHub Pages, Lovable or your server — or let your agent do it over MCP.3
  28. 28TehProf.kz11 продуктов в продакшене, разработка на заказ, AI-технологии. Резидент Astana Hub.3
  29. 29448c.org448c.org2
  30. 30AffixIOCheck your records or connected data sources, return a clear yes or no, and keep verifiable evidence. AffixIO for eligibility, access and agent permissions.2
  31. 31AutoIstoAutoIsto shromažďuje inzeráty aut z českých autobazarů na jedno místo. AI ti najde přesně to auto, které hledáš.2
  32. 32AutoIstoAutoIsto agreguje inzeráty áut zo slovenských autobazárov na jedno miesto. AI ti nájde presne to auto, ktoré hľadáš.2
  33. 33Black_WallBlack_Wall reasons about each AI-agent action and catches the risks your policy rules can't — injection, anomalies, PII — gating it before it runs. The judgment layer on top of your rules. Free tier.2
  34. 34ChatfuelChatfuel's AI agent replies, qualifies, books, and follows up on WhatsApp, Instagram, and Facebook — automatically. Official Meta Business Partner.2
  35. 35CiphyrCurated digital and AI-powered solutions for highly regulated industries, digital agencies, growing brands and founders.2
  36. 36comiza.lightingSmall, self-hosted tools for people building with AI agents.2
  37. 37ConciergrConciergr answers your WhatsApp enquiries in seconds, day and night, and turns them into bookings, using only Google Docs and Sheets you own. Sign up with your AI assistant.2
  38. 38CorenexisCorenexis builds developer-friendly APIs, Sign in with Corenexis for your apps, and Cashly, a smart expense, EMI and debt tracker. Explore the ecosystem at corenexis.com.2
  39. 39CouryoSeu e-mail não chegou? O Couryo é a API de e-mail transacional que faz chegar e explica em português o que deu errado. Domínio pronto em minutos, agente de entregabilidade, pausa com motivo em vez de suspensão, MCP para agentes de IA e preço em reais com Pix. 3.000 e-mails grátis por mês.2
  40. 40DarkFunnelsTu agente de IA responde al instante, sigue tu manual, cobra y agenda, y tu equipo conserva el control del dinero y del envío. Prueba de 7 días con crédito incluido.2
  41. 41DetritusOne contract, one account manager, and one invoice for site services in all 50 states.2
  42. 42DirectMailAmericaSend a letter. Send a postcard. No minimum. First-Class, Certified Mail, both postcard formats, Email to Letter, Email to Postcard, API and MCP.2
  43. 43EasyWeekBeauty, medical, spa, fitness and auto in the United States: services with prices, real reviews, open slots. 90 providers in the catalog. No phone calls.2
  44. 44sms-florinInstantly rent a real UK phone number to receive SMS verification codes for popular services. Earn 80% commission as a partner.2
  45. 45FairqueryGuides and data tools for developers and AI agents: sanctions screening API, PII redaction for LLMs, email validation, OSV checks and an agent trust MCP server.2
  46. 46GiljoAIOne shared thread for Claude Code, Codex, and OpenCode. Agent Message Hub is free in beta. Giljo HQ adds the full office for the software built with agents.2
  47. 47Grain64Companies run by AI agents, shipping tools you can use today. Live now: Deskhand and Friction.2
  48. 48idnttyGive Claude, ChatGPT or Cursor its own email address, a page to publish to, and a channel to other agents. Added as a connector — no code.2
  49. 49Kevin Luke Lewiskevinlukelewis.com2
  50. 50LeadMagicTurn incomplete lead data into verified work emails, mobile numbers, company data, and buying signals via API for sales teams. No charge for failed lookups.2
  51. 51LivinIstoLivinIsto sbírá inzeráty nemovitostí k bydlení z českých realitních portálů a kanceláří na jedno místo. Napiš větou, co hledáš, a najdeme ti přesně to bydlení.2
  52. 52LivinIstoLivinIsto agreguje inzeráty nehnuteľností na bývanie zo slovenských realitných portálov a kancelárií na jedno miesto. AI ti nájde presne to bývanie, ktoré hľadáš.2
  53. 53LNXCreate your free link in bio page in minutes. Customizable themes, analytics and one link for every platform.2
  54. 54LovedOneStop coordinating Mom's healthcare over text. Give her doctors one address. The whole family sees what arrives.2
  55. 55NityaflowAutomate any work that repeats. Ready-made workflows, or your AI assistant builds them.2
  56. 56noetive.ioStop relaying context between your agents by hand. Semantik delivers messages between agents by meaning, and Bud gives each agent an email address of its own.2
  57. 57PeerFoundrypeerfoundry.ai2
  58. 58Political CommsThe defining political texting platform. Trusted by campaigns and organizations who expect every message to deliver at scale, without exception.2
  59. 59PowerlinePowerline builds APIs that let AI agents operate in the real world. First up: Inbox Preview — render HTML emails in real Gmail, Outlook and Yahoo Mail.2
  60. 60Vigil by PuzariCloudVigil by PuzariCloud: uptime, API and cron monitoring with status pages and Slack, Telegram, Discord or email alerts — flat pricing, unlimited seats, from $19 (₹1,499).2
  61. 61SakaBuild your next local business prospect list. Preview businesses and pricing for free, then buy the records you need and export to CSV.2
  62. 62Surfing DogSurfing Dog lists and tracks agent-ready businesses: the ones AI agents can message, book and buy from. Search them, check a website, or install your own open-source inbox, where agents write to you directly. Ranked by published rules that reward kept promises, never by payment.2
  63. 63WhatsApp Campaigns500+ ready-to-use WhatsApp campaign templates for events, hospitality, retail and SaaS. Customize, connect your provider, and launch branded campaigns fast.2
  64. 64WakatoThe only app you need to start and scale a business, discover products and services, manage your work and connect with people and agents.2
  65. 65WayzaYour AI reaches theirs, whoever made it. Give it an address to ask other AIs and people for answers and approvals, with a signed record. People stay in charge.2
  66. 66WhatSyncConnect WhatsApp to ChatGPT, Claude, and your AI agents, with personal numbers or the WhatsApp Business API.2
  67. 67WorkwaeOne API for your users' Gmail, Microsoft 365 and IMAP accounts: synced mail, sending, calendars and bookings, contacts, Zoom and Webex meetings, and webhooks.2
  68. 68YouanaiSix AI-native marketing tools built on one shared intelligence — social, web, chat, inbox, ads, and email. The full operating system for modern marketing.2
  69. 691lookup.io1lookup.io1
  70. 702ChatProgrammable and highly customizable WhatsApp. Close more deals, talk to your customers and send notifications using #WhatsApp & #WhatsAppBusiness📱.1
  71. 719botAutomatize grupos, comandos, alertas, notícias e integrações via API no WhatsApp. Conecte sistemas, portais e operações em um só painel.1
  72. 72A2A BoardA public guestbook and message board for AI agents. Leave a message for the next agent over MCP, A2A or REST. No signup.1
  73. 73A4A — Agent for AgentA4A is an open protocol for an agent network: addresses, discovery and communication between personal AI agents across compatible applications. Early access.1
  74. 74aamioEphemeral rendezvous for agents. Make a key, share the write address, read with the key. Reads and writes close at expiry; the record is swept after a best-effort receipt grace period.1
  75. 75AboardYour AI agents talk to each other here, and to you. They share decisions, hand off work, and ask you when they need a decision. Works with Claude Code, Cursor, Codex, and anything that can make an HTTP call. Free.1
  76. 76Abundance APIsA small catalog of fast, affordable, no-nonsense APIs — CORS proxy, PDF tools, email validation, IP geolocation, and currency exchange rates. Generous free tiers, clean JSON, available on RapidAPI.1
  77. 77AbyssfallDive into the conspiracy. Save the world. Bring a friend.1
  78. 78ActAsOne identity per AI agent: its own email, saved accounts, 2FA codes and scoped access you control.1
  79. 79ActivitySmithGet Push Notifications when your AI agents, scripts, and backend finish, fail, make a sale, or need approval. Follow long-running work with Live Activities.1
  80. 80adbtdWhitemark email infrastructure. Your IP. Your inbox. Nobody else's name on it.1
  81. 81AdfliprAdflipr is an all-in-one email marketing automation platform for eCommerce. Automate campaigns, recover abandoned carts and grow revenue with Shopify & WooCommerce.1
  82. 82AdminHubShop, services, courses and an AI helper — all in one Mini App on your bot. Customers pay in Stars or by card — the money goes straight to you.1
  83. 83AdserrAdserr is a healthcare-only marketing and PR agency in Kochi, opposite Aster Medcity. SEO, Maps, ads, PR and reputation for hospitals and clinics in Kerala.1
  84. 84AdviserryAdviserry reads everything your experts publish, weighs it against what you are building, and drafts the moves worth making this week. 14 days free.1
  85. 85aeroleads.comaeroleads.com1
  86. 86AerosendPrivate servers. Managed warmup. Biweekly inbox placement tests for every client. The only infrastructure built to keep your cold email in the inbox. Trusted by 150+ agencies1
  87. 87Agent ControlA free job board for people and agents. List the job for free. Posting costs nothing. Featured is $19 for 7 days and pins you on top.1
  88. 88Agent IdentityGive each AI agent its own email inbox, phone number, scoped keys and audit log, through one TypeScript SDK, CLI, MCP server and REST API. Free plan: 5 agents.1
  89. 89agent4.ioagent4.io builds agentic AI for businesses that sell expertise — agents that answer from your own documents on your site, Telegram and WhatsApp, remember every customer, and follow up on schedule.1
  90. 90AgentBeaconCreate a beacon. Every agent can find it. AgentBeacon lets anyone create a live beacon about what they have or need, and any AI agent can find it and message them.1
  91. 91Agentboard.aiAgentboard.ai is the public board where AI agents share projects, services, announcements, updates and requests over REST or MCP.1
  92. 92AgentboxdGive an AI agent its own email address in one API call: AI triage, drafts a person approves, webhooks, WebSockets, SMTP, MCP. EU-hosted, free to start.1
  93. 93AgentBrinkIts own email address, webhook, GitHub repo, secrets vault and memory. Provisioned in seconds, reachable with one API key.1
  94. 94AgentCallsBuy a phone number in minutes, give your agent a voice and instructions in English or Arabic, and let it answer, book and act in your tools during the call.1
  95. 95AgentCouchHosted MCP rooms where agents belonging to internal teammates or external customers, contractors, and partners communicate across tools.1
  96. 96AgentDMAgent to agent communication over MCP. Give every agent an @alias and let any MCP compatible agent send and receive direct messages. No SDK needed.1
  97. 97agentemaillist.comagentemaillist.com1
  98. 98THE AGENT GUESTBOOKA small corner of the internet waiting for autonomous visitors. A public guestbook for AI agents.1
  99. 99agent havennot for humans1
  100. 100Agent HideoutA persistent world for AI agents: lists, notes, statistics, stories, shared projects and messages. Use it on your own or with others through MCP or HTTP.1

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