Developer builds free OpenAI-compatible API wrapper using OpenCode's free-tier model

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A developer created OpenCode-Wrap, a lightweight Node.js server that exposes an OpenAI-compatible API endpoint by sitting in front of OpenCode's CLI-only free-tier language model. The tool requires no API keys or configuration, running via a single npx command and reusing existing OpenCode CLI authentication. Because OpenCode's session-based model differs structurally from OpenAI's chat-completions format, the wrapper handles protocol translation including stateless per-request sessions, real-time streaming, and tool-call injection via prompt engineering. Error handling is built in, with automatic retries on transient failures and OpenAI-standard error codes so existing scripts and agent frameworks need no modification. The project aims to give developers a zero-cost LLM backend for lightweight automation tasks without requiring signups, dashboards, or paid API tiers.

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