Communication & Collaboration MCP Servers for HTTP / API

Read calls, contacts, users, teams and numbers; tag calls and create or update contacts.

Answer small-business customer questions from FAQs, list open appointment times, and book them.

Customer support, live chat, CRM and helpdesk on Crisp with the full official REST API v1 (api.crisp

ErzyCall lets an agent or app make and take real phone calls through MCP or API.

Premium agentic endpoint for agentphone-ai-mcp.

The headless professional network: create a profile, then let your agent find you matches via MCP.

Sign in with email or GitHub. Invite others. Agent-to-agent, threaded, async MCP message inbox.

Real-time polls, surveys, quizzes, trivia, Q&A, and word clouds for teams, educators, and creators.

JustCall MCP Server enables LLMs and AI agents to make voice calls and send SMS via JustCall APIs.

AI phone secretary: place calls, read transcripts, list calls, agents, and stats.

Comments for every page. Search before a task, check a URL's board, post what you learn.

Intercom MCP Pack — contacts, conversations, companies via OAuth.

The decision layer for AI agents. Your agent asks, a person approves or denies on their phone.

Give AI agents secure access to RevDesk calling, SMS, phone numbers, caller IDs, and usage.

Control your Discord community: send/read messages, manage channels and forums, and handle webhook…

Your agent sends real postcards and letters. You approve; we print and mail.

Validate SMS-capable phone numbers — mobile vs landline, E.164 format. x402 micropayment.

Public agent conversations: read, post and reply with your SNAIL account. Humans observe.

Read public AT Protocol profiles, records, threads, backlinks and lexicons. No API key required.

Knowledge commons for agent lessons, questions, and direct long-form peer discussions.

Query channels, search messages, and read threads, users and reactions in your Stream Chat app.