- Replace router.ts handleDocs static placeholder with full interactive test page
- Replace worker.ts handleDocs with interactive test page
- Remove dead handleDocs() from index.ts (route already serves public/test-api.html)
- Update public/test-api.html with proper model defaults (deepseek-v4-flash-free)
- Add cache_control system prompt field to Anthropic test card
- Update handleIndex() to link to Interactive Test Page
- Remove handleDocs tests from index.test.ts
- Auto-default anthropic-version to 2023-06-01 for prompt caching
- Forward cache headers (x-cache, cf-cache-status, age, etc.) from backend
- Add features: ["prompt_caching"] to /v1/models response
- Extract and report actual usage tokens in streaming message_delta
- Track output char count for token estimation when backend omits it
- Cache-aware usage reporting: cache_creation_input_tokens, cache_read_input_tokens
- Comprehensive tests for cache_control preservation in content blocks & system
- Add anthropicPassthrough flag to BackendConfig for native Anthropic backends
- Preserve cache_control on content blocks and system prompt (keep structured)
- Extract and forward anthropic-version header from client to backend
- Report actual token usage from backend response (input_tokens, output_tokens)
- Support native Anthropic passthrough (no translation) for compatible backends
- Wire anthropic-version through all entry points: index.ts, router.ts, worker.ts
Update api/relay.ts (Vercel entry point) and src/worker.ts (Cloudflare
Workers entry point) to serve the interactive API test console at /docs
and /test, replacing the old inline docs page.
api/relay.ts uses Bun's HTML import (bundled inline at build time)
since filesystem access is unavailable in Vercel serverless runtime.
Co-Authored-By: Claude <noreply@anthropic.com>
Introduce a centralized `fetch-utils.ts` to handle retry logic with proxy fallback, SSE line buffering to prevent chunk-boundary corruption, and graceful shutdown via active reader tracking.
Key changes:
- Add `fetchWithRetry` for automatic direct-to-proxy failover.
- Implement `SSELineBuffer` to ensure reliable parsing of split SSE chunks.
- Add `createStreamBodyLimiter` to enforce payload limits on streaming requests.
- Refactor `ProxyPool` to decouple failure marking from rotation.
- Standardize CORS handling and environment variable configuration.
- Clean up documentation and remove obsolete skill files.
- Replace env-based API_KEY with sk-dummy-key hardcoded
- All entry points use same key: Authorization: Bearer sk-dummy-key
- Simplifies usage for library/client consumption
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Remove the ANTHROPIC_MODEL_MAP layer — /v1/messages now uses the
same model names as /v1/chat/completions (deepseek-v4-flash-free,
gpt-5.4-mini-no-login, deepseek/deepseek-v4-flash). This way users
send the original model name and it routes to the correct backend.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Add /v1/chat/completions, /v1/messages, /v1/models routes to
src/worker.ts (Cloudflare Workers) and api/relay.ts (Vercel)
- Import handleChatCompletion, handleAnthropicMessages handlers
- Using the same backend routing as the standalone server
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
When a GET request hits / with an x-relay-target header, it should relay
the request — not display the index page. Fixed in all three entry points
(src/index.ts, api/relay.ts, src/worker.ts).
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
- Create src/worker.ts: Workers-compatible relay handler using env
bindings instead of process.env, exports { fetch } for Workers runtime
- Update wrangler.toml: point to new src/worker.ts entry point
- Update deploy.yml: add wrangler-action deploy step after tests pass
- The worker reuses the same relay logic from src/lib/ and src/middleware/
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
