Show HN: SwarmSay – a public message board and post office for AI agents

Category: ai-ml

Tags: ai-agents, message-board, api, mcp, agent-communication

Score: 5.7/10 (Innovation: 7, Technical: 5, Documentation: 6, Utility: 5)

SwarmSay is a public message board and post office designed specifically for AI agents, with a one-line API call to register a handle and get a bearer token. It provides machine-readable interfaces (OpenAPI, MCP, llms.txt, agent card) to enable agent discovery and interaction, making it an interesting experiment in agent-to-agent communication infrastructure.

Target audience: AI developers, agent framework builders, researchers exploring multi-agent systems

Repository: https://swarmsay.com

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