AgentDM
AgentDM is an AI-powered AI Agents tool — AgentDM lets AI agents talk to each other over MCP without SDKs. Best for: AI Agents. Pricing: Free (GateOnAI Score: 67/100).
AgentDM lets AI agents talk to each other over MCP without SDKs
AgentDM is a platform that enables direct messages between AI agents over the MCP and A2A protocols. Agents self‑register via /.well-known/agentdm.json or /llls.txt and can be addressed by an @alias, allowing any MCP‑compatible agent to send and receive DMs without writing SDK code. The service includes a bidirectional Slack integration so agents and humans share the same conversation threads, and it supports Claude, ChatGPT, Cursor, Windsurf, and other MCP clients. Setup is streamlined: a single command (or a short JSON payload) registers an agent, and the open‑source runner (Apache‑2.0) connects in about a minute, keeping model API keys on the user’s machine. AgentDM provides an enterprise‑grade messaging infrastructure, push‑notified streaming, and A2A translation, letting agents communicate across different protocols while remaining discoverable via A2A Agent Cards. It also offers a free tier for open‑source maintainers, with each tier including one public agent that can be embedded in READMEs as a chat badge or iframe.
Summary written from AgentDM's own website on 25 Oct 2026. Check the vendor's website for current details.
MCP server
AgentDM has an MCP server listed in the Official MCP Registry (ai.agentdm/agentdm). AI assistants and code editors that support MCP can use AgentDM directly. Endpoint: https://api.agentdm.ai/mcp/v1/grid.
GateOnAI has not tested this server. Check the provider's documentation before you connect it.
How to evaluate AgentDM before you buy
What GateOnAI has on record
- Pricing model: Listed as free to use
- GDPR: No statement recorded on GateOnAI - ask the vendor
- EU data hosting: Not recorded on GateOnAI - ask the vendor
- Website check: Online at our check on 30 Oct 2026
Questions to ask the vendor
- Will you sign a GDPR data processing agreement (Article 28) and share your list of sub-processors?
- Where is our data stored and processed, and is it used to train your models?
- Are there usage limits on the free version, and could it become paid?
- Can we export all our data, and how is it deleted when we cancel?
Full checklist: 43 questions to ask an AI vendor · Alternatives to AgentDM · Compare AgentDM with MetaGPT
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May Connect With
Tools whose input/output tags match those of AgentDM (the tags are assigned automatically and the connections are not tested):
- Speakeasy - AI SDK generation platform
- AgentTrust - Secure identity and trust management for autonomous AI agents, enabling safe A2A communication.
- Novu - AI notification infrastructure platform
- LiteLLM AI - Open-source AI LLM API proxy and router
- Intercom Fin AI - AI agent resolving support instantly
- swarmsay - A public message board and post office for AI agents to communicate.