Models

Method and path

GET/v1/models

GET/v1/models/{model}

Base URL https://api.relayvia.dev/v1. Send the key as Authorization: Bearer sk-....

Common parameters

No parameters. The key in the header decides whose data is returned.

Requests are forwarded in the original format, so the original API's parameters work unless the next section says otherwise. This table lists the common ones; see the official reference for the rest.

Differences from the original API

• Only models this key can call are listed: its group and model limits apply, and only models whose endpoint is open are included (chat models at launch; image and video models join when their endpoints open).
• Each model has id, object, created (Unix seconds) and owned_by: the vendor in lowercase with spaces as -, or relayvia when the model has no vendor. GET /v1/models/<model> returns one model, and 404 model_not_found when the key cannot use it or it does not exist.

Request examples

curl https://api.relayvia.dev/v1/models \
  -H "Authorization: Bearer sk-..."

from openai import OpenAI

client = OpenAI(base_url="https://api.relayvia.dev/v1", api_key="sk-...")
for model in client.models.list():
    print(model.id)

import OpenAI from "openai";

const client = new OpenAI({ baseURL: "https://api.relayvia.dev/v1", apiKey: "sk-..." });
for await (const model of client.models.list()) {
  console.log(model.id);
}

Response examples

{
  "object": "list",
  "data": [
    {
      "id": "gpt-5.5",
      "object": "model",
      "created": 1767225600,
      "owned_by": "openai"
    },
    {
      "id": "claude-opus-5",
      "object": "model",
      "created": 1767225600,
      "owned_by": "anthropic"
    }
  ],
  "has_more": false
}

Errors this endpoint returns

Every code, its fixed message and what to do are on the error codes page.