OpenClaw Access API Tutorial

Path

treerouter

OpenClaw is responsible for calling the model

First, make sure you have installed the Node.js 24+ environment, and then execute the following in the terminal:

OpenClaw installation method:

Method 1: npm installation (recommended)

npm install -g openclaw

Method 2: One-click installation script

After the installation is complete, run the guide (complete the basic settings according to the prompts)
openclaw onboard --install-daemon

Choose yes and quick start

Select Custom Provider here under the model provider

Create a token on the TreeRouter website. If you already have a token, check whether the grouping matches the model you want to call

Fill in the URL and paste the key of the token above
Note: Use URL: https://treerouter.com or https://treerouter.com/v1

Pay attention to the compatible endpoint selection, except for claude which selects the second one, generally choose Open AI compatible for others

Copy the model name from the model plaza

Paste the model name

Successful verification means successful connection to the site
If it fails, add /v1 to the end of the url

Note that there is an optional model alias, just press enter

Then choose skip

Finally restart the gateway

Select web ui

If it cannot run successfully, execute the following in order

openclaw gateway run
openclaw dashboard

Successful operation is as follows

(Optional)
If the gateway log reports a warning that the context window is too small, you can modify the following configuration

Modify these two parameters in the openclaw.json file in the .openclaw directory