Postal
Facilitates communication between multiple agents by providing a SQLite-backed message queue for asynchronous message exchange.
About
Postal offers a robust mailbox system designed to enable seamless communication between two or more autonomous agents using the MCP protocol. It establishes a SQLite-backed message queue where all messages are stored, and the MCP server operates in HTTP-only mode, ensuring a shared database and queue across all communicating agents. This architecture simplifies agent interaction, allowing agents to send messages to designated recipients and check their own mailboxes, with the 'check_mailbox()' function blocking until a new message arrives.
Key Features
- SQLite-backed message queue for agent communication
- HTTP-only MCP server for shared database and queue
- send_message(agent_name, message) function for sending messages
- check_mailbox() function for blocking message retrieval
- Supports communication between two or more agents
- 4 GitHub stars
Use Cases
- Enabling communication and task orchestration between AI agents
- Building multi-agent systems requiring asynchronous message passing
- Facilitating instruction and response flows between different agent instances
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