nexo-pairing

Setup-code pairing store and DM-challenge gate for Nexo channel plugins.

This crate is part of Nexo — a multi-agent Rust framework with a NATS event bus, pluggable LLM providers (MiniMax, Anthropic, OpenAI-compat, Gemini, DeepSeek), per-agent credentials, MCP support, and channel plugins for WhatsApp, Telegram, Email, and Browser (CDP).

• Main project: https://github.com/lordmacu/nexo-rs
• Documentation: https://lordmacu.github.io/nexo-rs/

What this crate does

• Setup-code generation + verification (HMAC-backed, constant-time compare).
• Persistent pairing store (SQLite via sqlx) for paired peers, challenges, and revocations.
• DM-challenge gate that channel plugins call before forwarding traffic from an unpaired peer.
• QR-code rendering (text + optional PNG via the qr-png feature) for setup-code handoff.

Install

[dependencies]
nexo-pairing = "0.1"

Disable the PNG renderer if you only need text QR:

nexo-pairing = { version = "0.1", default-features = false }

Documentation for this crate

• Pairing protocol

License

Licensed under either of:

• Apache License, Version 2.0 (LICENSE-APACHE)
• MIT license (LICENSE-MIT)

at your option.