About OpenCode Go

OpenCode Go is a model service from the OpenCode team that gives you one API key for 30+ curated coding models, including DeepSeek V4, Qwen3.8, GLM-5.3, Kimi K3, MiMo, MiniMax, and Grok, billed per token.

Most models use an OpenAI-compatible Chat Completions endpoint, while the GPT, Grok, and Muse Spark models use the OpenAI Responses API.

Step by step guide to use OpenCode Go API Key to chat with AI

I. Get Your OpenCode Go API Key

First, you'll need to obtain an API key from OpenCode Go. This key allows you to access their AI models directly and pay only for what you use.

  1. Visit OpenCode Go's API console
  2. Sign up or log in to your account
  3. Navigate to the API keys section
  4. Generate a new API key (copy it immediately as some providers only show it once)
  5. Save your API key in a secure password manager or encrypted note
OpenCode Go API keys page

Sometimes, this provider will require you to add a payment method to your account before you can use your API key to chat with AI. So, to avoid any hiccups, make sure you've got a payment method set up and ready to go!

Important: Keep your API key secure and never share it publicly. Store it safely as you'll need it to connect with TypingMind.

II. Connect Your OpenCode Go API Key on TypingMind

Once you have your OpenCode Go API key, connecting it to TypingMind to chat with AI is straightforward:

Option 1: Use the built-in OpenCode Go provider (recommended)

The quickest way. TypingMind already has OpenCode Go set up, so you only need to add your API key.

  1. Open TypingMind and click "Models" in the left sidebar.
  2. Search for OpenCode Go.
  3. Click the settings (gear) button next to OpenCode Go.
  4. Paste your API key and save.
Built-in providers with settings buttons on the TypingMind Models page

Option 2: Add the model manually

If you can't find the provider or model ID in the official list, you can add the model manually:

  1. Open the Models page

    Open TypingMind, click "Models" in the left sidebar, then click "Add custom model" in the top right corner.

    TypingMind Models page with the Add custom model button

  2. Enter the model details

    Keep "Create Manually" selected and fill in the model details:

    Name: deepseek-v4-flash via OpenCode Go (or your preferred name)
    Model ID: deepseek-v4-flash for example (check OpenCode Go model list)
    Context Length: Enter the model's context window (e.g., 1000000 for deepseek-v4-flash)
    Add Custom Model dialog in TypingMind filled in for deepseek-v4-flash

  3. Set up authentication

    In the "Authentication" tab, set the connection details:

    API Type: OpenAI Chat Completions API
    Endpoint URL: https://opencode.ai/zen/go/v1/chat/completions
    Authentication Type: API Key via HTTP Header
    Header Key: Authorization
    Header Value: Bearer <OPENCODE_API_KEY>
    OpenCode Go authentication settings in TypingMind

  4. Add pricing (optional)

    Open the "Pricing" tab and enter the model's input, output, and cache prices per 1M tokens so TypingMind can estimate your usage costs.

    Pricing settings in TypingMind for deepseek-v4-flash

  5. Check the capabilities

    In the "Capabilities" tab, keep "Auto check capabilities on save" on so TypingMind detects supported features like plugins, image input, and thinking, or enable them manually.

    Custom model capabilities settings in TypingMind

  6. Route requests via TypingMind Cloud

    OpenCode Go doesn't accept requests directly from the browser. Open the "Request Options" tab and turn on "Route requests via TypingMind Cloud".

  7. Test and save

    Click "Test & Save" to verify the connection and add the model.

III. Start Chatting with OpenCode Go models

Now you can start chatting with OpenCode Go models through TypingMind:

  • Select OpenCode Go models from the model dropdown menu
  • Start typing your message in the chat input
  • Enjoy faster responses and better features than the official interface
  • Switch between different AI models as needed
Chat with OpenCode Go models on TypingMind

💡 Pro tips for better results:

IV. Monitor Your AI Usage and Costs

One of the biggest advantages of using API keys with TypingMind is cost transparency and control. Unlike fixed subscriptions, you pay only for what you actually use. Visit your OpenCode Go usage dashboard to monitor your API usage and set spending limits.

💡 Cost-saving tips:
  • Use less expensive models for simple tasks
  • Keep prompts concise but specific to reduce token usage
  • Use TypingMind's prompt caching to reduce repeat costs (How to enable prompt caching)
  • Using RAG (retrieval-augmented generation) for large documents to reduce repeat costs (How to use RAG)
TypingMindOpenCode Go

Why TypingMind + OpenCode Go?

Chat with OpenCode Go models and 200+ other models in one workspace, using your own OpenCode Go API key.

Best-in-class UI

TypingMind's interface is far superior to standard chat UIs.

Model flexibility

Switch between OpenCode Go models and 200+ models instantly.

Cost control

Pay only for what you use through OpenCode Go.

One-time purchase

Buy TypingMind once, use forever with any OpenCode Go model.

Data privacy

Your conversations are stored locally by default, not on external servers.

Plugins, MCP, Skills & AI agents

Extend OpenCode Go models with web search, image generation, and custom AI agents.

Try TypingMind for free

Frequently Asked Questions

Do I need a subscription to use OpenCode Go with TypingMind?

No. With your own OpenCode Go API key, you pay only for what you use, with no monthly subscription. TypingMind is also a one-time purchase, not a subscription.

How much does the OpenCode Go API cost?

OpenCode Go charges per token, and prices vary by model. For example, deepseek-v4-flash costs $0.15/1M input tokens and $0.6/1M output tokens. A typical conversation costs around $0.01-0.10, depending on the model and length.

Which OpenCode Go models can I use in TypingMind?

Any model your OpenCode Go API key can access. You can switch between OpenCode Go models and models from other providers in the same TypingMind chat.

Is my data private when using OpenCode Go with TypingMind?

TypingMind stores your conversations locally (in your browser on the web version, on your device in the desktop app). Your messages are sent to OpenCode Go with your API key, so check OpenCode Go's data policy for how it handles API requests.