GLM API in OpenCode: API Key, Base URL, and Model Setup

You can connect GLM to OpenCode through BetterToken as an OpenAI-compatible provider. Enter your BetterToken API Key, the Base URL https://bettertoken.ai/v1, and the exact GLM Model ID from the Setup dialog.

Key settings

Field	Value
API Key	BetterToken API Key
Base URL	`https://bettertoken.ai/v1`
Model	`YOUR_GLM_MODEL_ID`

Prerequisites

Install OpenCode.
Create a BetterToken API Key.
In the Setup dialog, select OpenCode and the GLM provider, then copy the available full Model ID.

Configure with /connect

Start OpenCode and run:

/connect

Choose Other, enter bettertoken as the provider id, and paste your BetterToken API Key. Then select bettertoken/YOUR_GLM_MODEL_ID and restart OpenCode.

Manual configuration

Open ~/.config/opencode/opencode.json or a project-level opencode.json:

{
  "$schema": "https://opencode.ai/config.json",
  "model": "bettertoken/YOUR_GLM_MODEL_ID",
  "provider": {
    "bettertoken": {
      "npm": "@ai-sdk/openai-compatible",
      "name": "BetterToken",
      "options": {
        "baseURL": "https://bettertoken.ai/v1",
        "apiKey": "YOUR_API_KEY"
      },
      "models": {
        "YOUR_GLM_MODEL_ID": {
          "name": "YOUR_GLM_MODEL_ID"
        }
      }
    }
  }
}

Replace YOUR_API_KEY and YOUR_GLM_MODEL_ID with values from the Setup dialog. Do not reuse a Model ID from an old article; use one currently available to your API Key.

Verify the connection

Select bettertoken/YOUR_GLM_MODEL_ID in OpenCode and send a short prompt. A response without an API error confirms the setup. Fully restart OpenCode after editing JSON.

Common errors

Error	What to check
`401`	Check the BetterToken API Key saved through `/connect` or in `apiKey`.
`404`	Keep `baseURL` as `https://bettertoken.ai/v1`, without `/chat/completions`.
Model not found	Copy the full GLM Model ID again from the Setup dialog and use it in both JSON locations.
Configuration is not applied	Check the project-level `opencode.json`, which can override the global file.

Technical details

Base URL and Model ID

OpenCode uses OpenAI-compatible Chat Completions. Set only https://bettertoken.ai/v1 as the Base URL because OpenCode appends the request path. The available GLM Model ID depends on the selected provider and your API Key.

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Claude Desktop

Codex

Cursor

Cline

OpenCode

Model calls

Service assurance

Cost and tokens

Concepts

GLM API in OpenCode: API Key, Base URL, and Model Setup

Key settings

Prerequisites

Configure with /connect

Manual configuration

Verify the connection

Common errors

Technical details

​Key settings

​Prerequisites

​Configure with /connect

​Manual configuration

​Verify the connection

​Common errors

​Related guides

​Technical details

Key settings

Prerequisites

Configure with /connect

Manual configuration

Verify the connection

Common errors

Related guides

Technical details