Aurora Fork Fixes OpenCode API HTTP 400 Errors and Cuts Token Costs Up to 80%
entitybtw · reddit · 2026-09-08
A developer deeply upgraded a Go-based LLM gateway, Aurora, into a fork that fixes the early-September OpenCode Zen API update, whose strict session headers broke local tools with HTTP 400 errors.
- A Session Hub engine maps client traffic to stable, valid session IDs to stop the 400 drops
- Combined with per-provider bindip networking, it pins sessions to warm upstream nodes, preserving Prompt Cache and claiming up to 80% token-cost savings
- Ships a web UI dashboard, visual fallback model chains, and instant config persistence
- Pure Go, claimed up to 55x faster than LiteLLM; open source with Docker image entbtw/aurora:latest
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