OpenBaud: A FOSS MCP server for auditable serial hardware access
OneMasterpiece1717 · reddit · 2026-08-26
OpenBaud is an MIT-licensed Rust MCP server and CLI designed to close a gap in agent tooling: models could write firmware but could not safely inspect or reproduce what happened on physical serial devices.
Key Features:
- Preserves raw RX/TX, validates framing and checksums.
- Parses typed fields and visualizes telemetry.
- Promotes verified byte sequences into reusable YAML commands.
- Writes are audited, and dangerous commands require explicit acknowledgement.
Demo:
The reference demo uses a physical ESP32-S3 with a CRC-protected binary protocol. The repository includes its byte-exact capture so the workflow can be replayed without hardware.
Related event: OpenBaud: Open-Source MCP Server for Auditable Serial Hardware Access(2 posts)→
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