Skip to main content
OpenRouter is a third-party inference provider. It routes to models from every publisher Guild supports, so one OpenRouter key can reach all of them. Guild calls OpenRouter with your API key, and OpenRouter bills the calls to your account.

​
Publishers on OpenRouter

Guild reads OpenRouter’s public model catalog and lists the text models in these namespaces. Variants with a suffix after a colon, such as :free, aren’t listed.

​
Connect OpenRouter

1

Create a key

In your OpenRouter account, create an API key.
2

Start the credential

In Guild, click Access & setup in the left nav, then Models & providers. Click Add API key and choose OpenRouter from the menu.
3

Name it and paste the key

Give the credential a Name, such as Production, and paste the key into API key.
4

Choose publishers

Under Models, check each publisher this credential should reach. Keep or change the default model next to each one.
5

Save

Click Add Key.
One OpenRouter credential can reach every publisher at once. Check them all to use a single key for everything.

​
Model IDs

Write canonical model names, such as claude-sonnet-4-6 or deepseek-r1, in policies and llmPreferences, without the OpenRouter namespace. Guild adds the namespace for you. OpenRouter spells Claude versions with dots, so Guild maps claude-sonnet-4-6 to anthropic/claude-sonnet-4.6.