stealthstack.ai Status Publish a catalog

Communication

Resources for sending messages and talking to people.

They cover email, chat apps such as Slack and Telegram, SMS and phone calls, notifications, meetings and file sharing.

Listings are what publishers declare in their ARD catalogs and the registries StealthStack reads. The category and summaries are our reading of each listing. Each listing links to its own page with the publisher's endpoint.

All types MCP serversSkillsA2A agentsAPIs
EmailChatSMS and voiceNotificationsMeetingsFile sharing
  1. MCP SERVERForward Email MCP Server Forward Email MCP exposing domains, aliases, messages, contacts and calendars.
  2. APIPachca API REST API for the Pachca messenger: messages, chats, threads, tasks, bots, webhooks.
  3. SKILLtelegram Zapier connector skill for Telegram bots: send, edit, forward and pin messages.
  4. SKILLAzure Communication Sms Java Skill for sending SMS with Azure Communication Services SMS Java SDK.
  5. SKILLEmail Best Practices Skill for email features, deliverability and SPF/DKIM/DMARC setup.
  6. SKILLdiscord Zapier connector skill for Discord: send messages, manage channels, members and roles.
  7. SKILLmicrosoft-outlook Zapier connector skill for Outlook: mail, calendar events and contacts.
  8. SKILLpachca-chats Skill for managing Pachca chats, channels, members and chat export.
  9. MCP SERVERLoops MCP Hosted Loops MCP: manage contacts, send events and transactional email.
  10. APIHostinger Agentic Mail API Hostinger Email API: send and read mail, manage mailboxes, webhooks and block lists.
  11. APIForward Email REST API (OpenAPI) OpenAPI for Forward Email domains, aliases, SMTP, messages, contacts, calendars.
  12. SKILLpachca-messages Skill for sending, editing and managing messages in the Pachca messenger.
  13. SKILLresend Zapier connector skill for Resend: send email, manage contacts, check delivery.
  14. SKILLpachca-bots Skill for Pachca messenger bots and webhooks, including signature checks.
  15. MCP SERVERPostmark MCP Server Postmark MCP server: send email, manage templates, inspect delivery, webhooks.
  16. SKILLpachca-search Skill for full-text search across Pachca employees, chats and messages.
  17. MCP SERVERPrimitive MCP server Send, receive, search and reply to email over MCP; bearer-authenticated.
  18. SKILLMigrate Sendgrid Skill to migrate SendGrid email integrations to Resend.
  19. SKILLAzure Communication Callautomation Java Skill for call automation workflows with Azure Communication Services Java SDK.
  20. SKILLAgent Inbox Skill for creating temporary receive-only email inboxes via Ausca; no account.
  21. SKILLAzure Communication Chat Java Skill for real-time chat apps with Azure Communication Services Chat Java SDK.
  22. SKILLslack Skill interacting with Slack workspaces via browser automation.
  23. A2A AGENTClix Agent Sends push notifications, triggers campaigns and tracks user events in Clix.
  24. SKILLReact Email Skill for building HTML email templates with React Email.
  25. APIBird API OpenAPI spec for Bird email, SMS, WhatsApp, voice, verify and contacts APIs.
  26. SKILLpachca-forms Skill for interactive forms and modals in Pachca bots.
  27. MCP SERVERmailbox.bot MCP Server 45 tools to send postal mail, read forwarded mail and get a street address.
  28. SKILLsetup-zoom-oauth Skill implementing Zoom app authentication and OAuth correctly.
  29. SKILLbuild-zoom-bot Skill for building Zoom meeting bots, recorders and real-time media workflows.
  30. SKILLbuild-zoom-meeting-sdk-app Reference skill for the Zoom Meeting SDK, joins, auth and bot patterns.
  31. APIPrimitive REST API (v1) Primitive REST API: send, receive, search email, memories, domains, functions.
  32. SKILLbuild-zoom-team-chat-app Reference skill for Zoom Team Chat apps, chatbots and webhooks.
  33. SKILLprimitive-inbox skill Skill for a managed inbox that waits for mail and runs JS on each inbound email.
  34. APImailbox.bot REST API REST API to send postal mail, price dry runs and read forwarded mail.
  35. MCP SERVERPostalForm MCP Server Prepares and tracks physical mail from PDFs or letters; paid by checkout, MPP or x402.
  36. SKILLpachca-profile Skill for reading and setting your own Pachca profile and status.
  37. MCP SERVERNvoip MCP Server Nvoip MCP for call analytics, attendance metrics and chat quality reviews.
  38. SKILLbuild-zoom-phone-integration Reference skill for Zoom Phone APIs, webhooks and CTI dialer integrations.

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