#OpenCode

An open-source terminal agent with multi-model switching; connects to ByteSeek via the OpenAI-compatible protocol.

#Install

curl -fsSL https://opencode.ai/install | bash

npm install -g opencode-ai

brew install sst/tap/opencode

Website: opencode.ai.

#Prerequisites

• OpenCode installed (opencode --version prints a version)
• An OpenAI-format group key from the API Keys page

#Configure (one click from the console)

No hand-written config needed — the console generates an opencode.json complete with the model list for your key:

1. Open the API keys page, and in the key row's Actions column click More → Use key;
2. Switch the dialog to the OpenCode tab and copy the generated opencode.json in full;
3. Write it to ~/.config/opencode/opencode.json (opencode.jsonc also works), creating the file if it doesn't exist.

SCREENSHOT

The generated config points the default openai provider at ByteSeek, with context limits and reasoning-effort variants pre-filled per model. Structure excerpt (the dialog's content is authoritative — copy it wholesale):

{
  "provider": {
    "openai": {
      "options": {
        "baseURL": "https://tokens.byteseek.ai/v1",
        "apiKey": "sk-your-key"
      },
      "npm": "@ai-sdk/openai",
      "models": {
        "gpt-5.6-sol": {
          "name": "GPT-5.6 Sol",
          "limit": { "context": 1050000, "output": 128000 },
          "options": { "store": false },
          "variants": { "low": {}, "medium": {}, "high": {}, "xhigh": {}, "max": {} },
          "tool_call": true
        }
      }
    }
  },
  "agent": {
    "build": { "options": { "store": false } },
    "plan": { "options": { "store": false } }
  },
  "$schema": "https://opencode.ai/config.json"
}

Extra notes (also flagged in the dialog):

• The API key can stay out of the file — configure it with the client's /connect command instead;
• You may also use a custom provider_id (such as byteseek) instead of the default openai provider, adding or removing models as needed;
• Model IDs follow the model plaza; with a composite key, include the prefix.

#Verify

Start OpenCode, switch to a ByteSeek model in the picker and send a message. Charges appear on the usage page.

#Common issues