Show HN: Let agents send/receive SMS using your old Android phone

Category: infrastructure

Tags: sms-gateway, mcp, ai-agents

Score: 7.0/10 (Innovation: 7, Technical: 7, Documentation: 7, Utility: 7)

SimLink turns an old Android phone with a prepaid SIM into an SMS gateway for AI agents via the MCP protocol, allowing agents like Claude or ChatGPT to send and receive real text messages. It offers end-to-end encryption, self-hosting options, and a privacy-focused transient relay, making it a creative bridge between physical telecom infrastructure and AI tooling.

Target audience: backend devs, ai engineers, devops

Repository: https://simlink.snaz.cz/ · Ruby · MIT

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