Open WebUI
Open WebUI is a self-hosted chat front end. Add the exchange as an OpenAI API connection. Each model on the book then shows in the model picker. The exchange auctions each request, sets a cap before the first token and charges for the measured use.
Before you start
- A workspace with a balance and a
spendkey. See API keys. - An Open WebUI server that you can configure.
1. Add a connection
Open Settings → Connections → OpenAI API. Add a connection and enter:
https://router.inference.ai.exchange/v1
The URL ends in /v1.
2. Paste the key
sk-liquid-...
Save the connection. Open WebUI reads GET /v1/models from the exchange and lists every model name in the picker.
Notes
- The exchange sets a cap on each request. It is in the
x-liquid-cap-usdresponse header. To limit total spend, set a spending limit on the key. See API keys. liquid.autohas a cap of its own. For other purchasing rules, use a preset. See Purchasing rules.
Troubleshooting
| Symptom | Cause and fix |
|---|---|
401 |
The key is wrong, revoked or expired. Paste it again. |
| The model picker is empty. | Check the base URL and the key. Open WebUI reads the list with the same key. |
404 |
Keep /v1 at the end of the base URL. |
| A request is refused for lack of funds. | The workspace balance cannot cover the cap. Add funds on the Credits page. |
See Errors for the error codes.
Next steps
- Cherry Studio: a desktop chat client with the same provider type.
- Market data: models and live offers.
- Purchasing rules: models, strategy and limits, and presets.