OpenCode Setup

Install OpenCode first

Official docs

With Node.js

npm install -g opencode-ai

Configure a provider

https://opencode.ai/docs/providers/

Two places to configure

Provider config (create the file if missing)

~ is the user home directory, e.g. C:\Users\admin on Windows

~/.config/opencode/opencode.json { "$schema": "https://opencode.ai/config.json", "provider": { "anthropic": { "options": { "baseURL": "https://api.digislash.com/v1" } } } }

Here we override the existing Anthropic base URL

API key config

Configure a Claude provider key. In the console, create a key and pick a Claude-related group such as Claude Exclusive.

~/.local/share/opencode/auth.json { "google": { "type": "api", "key": "1111111111111111111" }, "anthropic": { "type": "api", "key": "sk-xxxxxxxxxxxxx" } }

Open a terminal

Type /models

Pick an Anthropic model

Start using it