Add vendors and your own keys

Proxium calls a model with the key of a vendor that you add to your project. Your apps never hold that key. They send their calls to Proxium with a virtual key.

Your app

Sends a virtual keynever a vendor key

→↓

Proxium

Adds your vendor keystored encrypted

→↓

Vendors

OpenAIyour OpenAI key

Groqyour Groq key

Your own servervLLM, Ollama… no key, or yours

Add a vendor from the list

Proxium has a preset for each vendor in Providers. A preset fills in the base URL, the way to send the key, and a first list of models.

1. Get an API key from the vendor. The form shows a get a key link for the vendor that you select.
2. In the console, open Providers, and select Add a vendor.
3. In What are you adding, select the vendor, for example Groq.
4. Paste the key into API key.
5. Select Add Groq.

The vendor shows in the Vendors table, with its Models. Each model now has an id that you can send, or put in a chain:

Model ids

t.acme.groq/llama-3.3-70b-versatile
t.acme.groq/llama-3.1-8b-instant

acme is your project. To list the ids from your code, send GET /v1/models with a virtual key.

note

Proxium stores the key encrypted with AES-256-GCM. The console never shows it again. To change the key, remove the vendor and add it again.

Add a server that you run yourself

Use this for a server that speaks the OpenAI API, such as vLLM, Ollama or an Azure deployment.

1. Open Providers, and select Add a vendor.
2. In What are you adding, keep A server I run myself.
3. Fill in the form:

Field	Value	Example
Name	1 to 40 characters of a-z, 0-9 and -. No - at the start or the end	my-vllm
Base URL	The address of the OpenAI API of the server, on the public internet	https://llm.example.com/v1
Request type	Text, Embeddings, Images, Speech or Video	Text
Models	The model names of the server, one on each line. At most 200	qwen3-32b
API key	Optional. Give it if the server asks for one

4. Select Register.

warning

Proxium refuses a private, loopback or link-local address, such as 10.0.0.5 or localhost. Proxium calls the server from its own network, so the server must be on the public internet.

Change the models of a vendor

1. On the row of the vendor, select Models.
2. In Models this vendor serves, change the list, one model on each line.
3. Select Save models.

The new list replaces the old list. To use a new model, add it to a chain on Routing, or send its id. See Route requests to models.

Remove a vendor

Select Remove on the row, and confirm. Proxium removes the vendor, its models and its key. A chain that names one of its models skips that model.

Your own keys

The Your own keys section holds a key that replaces another key:

• In a project with the pooled keys of Proxium, give your own key for one of the platform providers. The calls to that provider then bill your vendor account.
• In each project, give a new key for one of your own vendors. It replaces the key that you added the vendor with.

A new project on proxium.tech has no pooled keys. For such a project, the form lists only its own vendors. If the project has no vendor yet, the section tells you to add one, and it shows no form. Add a vendor as above.

A key for a platform provider, sent from a project without pooled keys, gets 403 pool_not_granted.

Related pages

• Providers: each preset, its base URL and its first models.
• Route requests to models: put the models of your vendors in a chain.
• Create endpoints and keys: the keys that your apps send.