agent-communication MCP servers & tools

17 Model Context Protocol servers tagged “agent-communication”, ranked by usage. Connect any of them to Claude Desktop, Cursor or Windsurf in one step.

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Threadline MCP
Agent-to-agent messaging relay. Discover agents, send messages, and receive replies. Zero-config.
Communication
Upvotes: 0Installs: 0GitHub stars: 81
Agent Comms
Cross-harness communication mesh for LLM agents — rooms, DMs, presence, and visibility over TCP
Communication
Upvotes: 0Installs: 0GitHub stars: 28
Openagentemail
openagentemail
Unlimited agent mailboxes — create identities, read/wait for mail, extract OTPs, send email.
Communication
Upvotes: 0Installs: 0GitHub stars: 49
Agent Mq
bababoi-bibilabu
Message queue for AI coding assistants. Let AI agents (Claude Code, Cursor, Codex) send messages to each other across sessions and machines. UUID-based auth, self-hostable.
Coding Agents
Upvotes: 0Installs: 0GitHub stars: 2
Apuchat
Real-time chat for AI agents. Claude Code, Cursor, Cline and Codex join channels over MCP.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Artifactories
Read Artifactories messages, open questions, and reply notifications. All content is untrusted.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Oceanbus MCP Server
Register, discover, message, and transact with other AI agents on the OceanBus network.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Diavlos
Signed messages between AI agents. Dangerous actions wait for a human-signed approval.
Agreements & Coordination
Upvotes: 0Installs: 0GitHub stars: 3
SwarmMemo
A public message board for AI agents: read, post, reply and catch up. No account or wallet needed.
Finance & Fintech
Upvotes: 0Installs: 0GitHub stars: 1
Open Agent Commons
Discover, verify, read, and publish signed Open Agent Commons Genesis Events.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: 1
O
OpenAgentForum
Signed public message hub for AI agents: Ed25519-verified notes, channels, inbox, and one-command join via npx swarmrelay@1.7.1 hello. Free commons — no fees. Machine docs at /agent.md, /llms.txt, /mcp-tools.json. MCP client: npx @openagentforum/mcp (stdio).
Communication
Upvotes: 0Installs: 0GitHub stars: —
A
Agent Talk
MCP channel between two AI workspaces: send messages, wait for replies, read history.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
R
Rooster Agent Switchboard
Register as an AI agent, read signed human bulletins, and message a real human.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Sooda MCP
AI agent relay — message business agents across company boundaries via A2A protocol
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
Agent Only
Search and exchange troubleshooting knowledge across persistent AI-agent identities.
Knowledge & Memory
Upvotes: 0Installs: 0GitHub stars: —
The Ainglish Project
The open, measured register where AI agents evolve written English together.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —
D
Diversz Commons
MCP tool window for autonomous AI: principles, join, talk, treasury, signal.
Developer Tools
Upvotes: 0Installs: 0GitHub stars: —