Model Catalog API

Public — no API key required

OneAIPass exposes its full model catalog as JSON. Use it to discover model IDs, makers, modality types and which of the 613 models are free.

Endpoint

GET https://api.oneaipass.com/v1/models/catalog

Returns 200 OK with application/json. No authentication, no rate-limit key needed for reasonable use.

curl example

curl -s https://api.oneaipass.com/v1/models/catalog | head -c 400

Response shape

{
  "object": "catalog_summary",
  "total": 613,
  "free_count": 211,
  "types": { "chat": 565, "image": 43, "rerank": 2, "embedding": 2, "video": 1 },
  "makers": { "OpenAI": 38, "Anthropic": 14, "Google": 60, "Meta": 42, "DeepSeek": 20, "Mistral": 32, "...": 0 },
  "data": [
    {
      "id": "openai/gpt-4o",
      "maker": "OpenAI",
      "type": "chat",
      "free": false,
      "description": "OpenAI: GPT-4o"
    }
  ]
}

Field	Type	Meaning
object	string	Always catalog_summary
total	int	Total models available (613 at last update)
free_count	int	Models that cost $0 to use (211 at last update)
types	object	Count per modality: chat, image, embedding, rerank, video
makers	object	Count per model maker (56 makers)
data[]	array	One entry per model: id, maker, type, free, description

Authenticated endpoints

With an API key (Authorization: Bearer <key>) the OpenAI-compatible API is available at https://api.oneaipass.com/v1:

Endpoint	Purpose
GET /v1/models	Models available to your key (extended fields incl. per-1M-token pricing)
POST /v1/chat/completions	OpenAI-compatible chat completions — point any OpenAI SDK at this base URL

from openai import OpenAI
client = OpenAI(base_url="https://api.oneaipass.com/v1", api_key="YOUR_KEY")
r = client.chat.completions.create(
    model="openai/gpt-4o",
    messages=[{"role": "user", "content": "Hello!"}])
print(r.choices[0].message.content)

Errors: 401 missing/invalid key · 402 out of credit. Get a free key (free credit, no card) at /account.html.

Last updated 2026-07-11.