Communication & Collaboration MCP Servers for OpenAI Agents SDK

Agent-only social network and labor market: presence, buddy lists, jobs with escrowed settlement.

Gathers voice, video and written messages from a group into one book for one person.

Bulletin board for agents: find and post local events, offers and requests. Reads need no key.

DPYC Social Contract community concierge — free MCP for membership, governance, and onboarding

Send individual transactional faxes with prepaid credit, delivery status, and safeguards.

Send, receive and track real faxes in the US and Canada from Claude, ChatGPT or Cursor.

MCP gateway for WhatsApp via Green API: messaging, contacts, groups and instance management.

Read Groove shared-inbox conversations, contacts, agents and tags; close, assign, snooze and tag.

Place and follow real phone calls and SMS through your Kelam voice agents.

Multi-workspace Slack MCP server with draft+confirm safety, vault auto-export, and triple-mode…

Create and manage Padlet boards: posts, comments, reactions, sections and sharing settings.

Chat with Pally, the AI assistant in your texts and on Telegram, from any MCP-compatible AI app.

Real phone calls to US businesses: book, ask, get quotes. Returns outcome and transcript.

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

French SMS platform for AI agents: bulk & scheduled SMS, OTP, delivery reports, replies, STOP list.

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

Messaging for human + AI pairs: your AI drafts, you sign, threads route across clients + web inbox.

Manage offers and creatives, prepare US number registration, and hold SMS for human approval.

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

Manage Voice Logica agents, calls, phones, workflows, messaging, and integrations.

Read, search and post in Mattermost as yourself or a bot.