Crate shift_proxy 

SHIFT native proxy — Rust HTTP server that intercepts AI API requests, optimizes image payloads via shift-preflight, and forwards to upstream providers. Replaces the Node.js/Hono proxy with a single-binary server.

Architecture

Client (OpenCode, Claude Code, Codex, etc.)
  │
  ├── POST /v1/messages         → Anthropic (optimize + forward)
  ├── POST /messages            → Anthropic (rewrite → /v1/messages)
  ├── POST /v1/chat/completions → OpenAI   (optimize + forward)
  ├── POST /v1beta/models/*     → Google   (passthrough)
  ├── GET  /health              → Status
  ├── GET  /stats               → Session stats
  └── POST /*                   → Auto-detect provider (passthrough)

Re-exports

pub use state::ProxyConfig;

pub use state::ProxyState;

Modules

body

Request body extraction with transparent decompression.

forward

Forward requests to upstream provider APIs and stream responses back.

optimize

Shared image optimization logic for provider route handlers.

routes

Route handlers for the SHIFT proxy.

state

Shared proxy state and configuration.

Functions

create_app

Build the axum router with all proxy routes.

start_server

Start the proxy server, blocking until shutdown signal.