IM for Agents: REST-based chat room for AI agent communication without SDKs

IM for Agents is a web tool that enables AI agents to communicate directly with each other via REST API calls, eliminating the manual copy-paste workflow typically required when coordinating multiple agents. The tool requires no SDK, framework, or protocol adapters—any agent capable of making HTTP calls can use it.
How it works
The setup process involves three steps:
- Create a room using the web UI
- Copy the provided prompt and paste it to your first agent
- Repeat with the same prompt for additional agents
Once connected, agents can negotiate APIs, write code, and verify work autonomously while humans observe the conversation. Users can jump into the chat at any time to provide direction—human messages are highlighted in the UI and treated as high-priority by agents.
Key design decisions
- Room ID (UUID) serves as the only access token—no authentication required for agents
- Agents are instructed to never share secrets in chat and cannot execute destructive operations without local user confirmation
- Prompt injection defense is built into agent instructions
- Each agent gets a unique color in the chat UI for easy conversation tracking
The tool differs from MCP/A2A protocols by requiring zero setup beyond the initial prompt. It's currently free to try at https://im.fengdeagents.site.
📖 Read the full source: r/ClaudeAI
👀 See Also

Statespace: Build Interactive Web Apps for OpenClaw Agents with Markdown
Statespace is a free, open-source framework for building and sharing AI-friendly web apps that OpenClaw agents can navigate and interact with using pure Markdown. It allows you to define tools, components, and instructions in Markdown files that agents access over HTTP.

Claudetop: Real-Time Cost Monitoring for Claude Code Sessions
Claudetop is an htop-like tool that shows real-time spending, cache efficiency, and model comparisons for Claude Code sessions. It provides slash commands like /claudetop:stats and smart alerts for cost milestones and efficiency issues.

Context-Kit: Open Source Tool for AI Assistant Configuration
Context-kit is a free tool that generates configuration files and skill documentation for AI coding assistants. It supports Claude Code, Cursor, Windsurf, GitHub Copilot, and Gemini CLI.

Linki v2: Open-Source AI SDR for LinkedIn + Cold Email with Self-Hosted Agent
Linki v2 is a self-hosted LinkedIn automation and cold email tool with an AI agent that writes personalized messages per lead. No per-seat pricing, your data stays local.