v0.3.1

chore: release v0.3.1

Amp-Thread-ID: https://ampcode.com/threads/T-019dcf6a-0c35-73a9-af1e-9599b3a93924
Co-authored-by: Amp <amp@ampcode.com>

v0.3.0

feat: add dual-format Gemini bridge

v0.2.0

amp-proxy-rs v0.2.0

New since v0.1.0:
- Prometheus /metrics endpoint (requests_total, request_duration_seconds,
  billable_requests_total)
- Provider health checks + automatic failover with 30s background probe
- amp-proxy capture-pretty subcommand for body_capture .log viewing
- Bilingual README (Chinese primary, English mirror)

Internals: customproxy registry now Vec<Arc<Provider>> per model;
RetryTransport wired into the Gemini bridge; Connection-header value
honored in proxy header sanitisation per RFC 9110.

cargo test: 159 passed.
See CHANGELOG.md for the full list.

v0.1.0

First release of amp-proxy-rs — a single-binary, focused reverse proxy for Sourcegraph Amp CLI.

Highlights

• 3.7 MB stripped binary (LTO + opt-z), zero runtime dependencies
• Five protocol translators — Anthropic Messages stream upgrade, Gemini :generateContent ↔ OpenAI Responses, Gemini :streamGenerateContent ↔ OpenAI Responses SSE (new beyond upstream), OpenAI Responses ↔ chat/completions (request + non-streaming reply), Responses SSE → Responses SSE for chat-only upstreams
• Hybrid streaming proxy — peeks the first 16 KiB for routing decisions, streams the rest of the body to the upstream chunk-by-chunk via a custom PrefixedBody adapter
• Hot-reloadable config — mtime-polled file watcher rebuilds the API key validator and the amp module's compiled fallback handler atomically
• BILLABLE warning at the ampcode.com fallback — credit drain is immediately visible in run.log
• AMP-CLI / Vertex AI path support — /api/provider/*/v1beta{,1}/publishers/google/models/*action routes
• Structured per-request logging — amp router: request / amp router: response paired entries with route decision, model, provider, status, elapsed_ms

End-to-end validated

Path	Verdict
claude-sonnet-4-6 (main agent + librarian) → custom provider	✅
gemini-3-flash-preview (finder) → custom provider via translate	✅ no credit leak
gpt-5.4 → DeepSeek via Responses↔chat/completions	✅ multi-turn reasoning + tool_use
/api/internal, /api/telemetry (Amp control plane)	✅ correctly billable

cargo test: 142 passed.

Downloads

Platform	Archive	SHA-256
Linux x86_64	amp-proxy-x86_64-linux.tar.gz	.sha256
macOS x86_64	amp-proxy-x86_64-macos.tar.gz	.sha256
Windows x86_64	amp-proxy-x86_64-windows.zip	.sha256

Each archive contains the binary plus LICENSE, NOTICE.md, README.md, CHANGELOG.md, and config.example.yaml.

Quick start

# Linux / macOS
tar -xzf amp-proxy-x86_64-linux.tar.gz
./amp-proxy init                  # interactive wizard writes config.yaml
./amp-proxy --config config.yaml

# Then point Amp CLI at it
export AMP_URL=http://127.0.0.1:8317
export AMP_API_KEY=<api-key from your config.yaml>
amp

See README for full configuration, log-reading guide, and architecture overview.

Provenance

amp-proxy-rs's protocol translation algorithms and custom-provider routing decision model are derived from CLIProxyAPI (MIT). See NOTICE.md for full attribution.