Postal is a software tool that provides a SQLite-backed message queue system, enabling robust asynchronous communication and message exchange between multiple software agents.

How do agents send and receive messages using Postal?

Agents utilize the `send_message(agent_name, message)` function to dispatch messages and `check_mailbox()` to block and retrieve incoming messages specifically intended for their own mailbox.

Does Postal support communication between many agents?

Yes, Postal is specifically designed to facilitate seamless asynchronous message exchange and communication among two or more agents, creating a shared communication channel.

What is the MCP server used for in Postal?

Postal employs an HTTP-only MCP (Message Communication Protocol) server. This server ensures that a single SQLite database and message queue are always shared across all communicating agents, simplifying shared data access.

Postal

Name: Postal
Author: tkellogg

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Facilitates communication between multiple agents by providing a SQLite-backed message queue for asynchronous message exchange.

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

01SQLite-backed message queue for agent communication

02HTTP-only MCP server for shared database and queue

03send_message(agent_name, message) function for sending messages

04check_mailbox() function for blocking message retrieval

05Supports communication between two or more agents

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Use Cases

01Enabling communication and task orchestration between AI agents

02Building multi-agent systems requiring asynchronous message passing

03Facilitating instruction and response flows between different agent instances