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Use onomeo in Chatbox

Chatbox is a desktop chat app that works with many model services. Follow the five steps below to add onomeo as a provider and chat with this site's models.

A desktop chat app for many model services.

What to fill in

OpenAI-compatible

Use these details in any OpenAI-compatible tool.

Name
onomeo

Any name works; the tool uses it only to tell its providers apart.

Base URL
https://onomeo.com/v1
API key
Model

No key yet? Create one on the My account page, then come back — the fields below fill in by themselves. Go to My account

Step by step

  1. Add a custom provider

    Download Chatbox from chatboxai.app and open it. Press Settings at the bottom left, choose Model Provider on the left, then press Add at the bottom. Type custom in the search box and choose Add Custom Provider.

    Chatbox's provider search with custom typed in and Add Custom Provider highlighted below
    With custom typed, choose Add Custom Provider.

  2. Name the provider

    In the window that opens, type onomeo as the Name. Leave API Mode on OpenAI API Compatible. Press Add.

    Chatbox's Add provider window: the name onomeo and the OpenAI API Compatible mode
    With the name filled in, press Add.

  3. Fill the key and address, then fetch the models

    API Key: your key (copy it from "What to fill in" above). API Host: the address below; leave API Path on its default. Then press Fetch: a Models window opens with the models your key can use. Press the plus on the right of the auto row (near the top of the list), then close the window.

    https://onomeo.com/v1
    Chatbox's onomeo provider page: the key filled in, the host https://onomeo.com/v1, and the model auto added
    Fill the key and address as marked, then press Fetch and add auto.

  4. Choose the model

    Press New Chat at the bottom left, then press Select Model at the bottom right of the input box. Type onomeo in the search box at the bottom of the list, then choose auto under onomeo.

    Chatbox's model list: auto under the onomeo group
    Under the onomeo group, choose auto.

  5. Start chatting

    Type a message and press Enter.

    A Chatbox chat: the model is onomeo auto and the assistant has answered a message
    A reply means the connection works. onomeo (auto) below the reply is this site's model.

    Each message counts as 1 call, and Chatbox uses 1 more to name the conversation. Measured on 9 October 2026 with Chatbox 1.23.5: the message above took 2 calls on auto and was not charged.

If it will not connect

  • Keep /v1 at the end of the address and add nothing after it. Leave API Path on its default /chat/completions; the Preview line under the address is there to check.
  • To add more models later, open the onomeo provider and press Fetch or New to add the ones you want.
  • 401: the key is wrong; open the onomeo provider and correct API Key. 402: insufficient balance. Claude, GPT and other big models are charged by usage; top up on the Pricing page or switch to a free model.
  • Once your own provider keys are connected on the My providers page, their models also appear in the list after Fetch, with names starting my/. This site does not charge for those calls.
Chatbox's own documentation