Overview

OhMyGPT gives you one API key and one balance for models from OpenAI, Anthropic, Google, DeepSeek and many other providers. Keep the SDK you already use, change the base URL and the key, and switch models by changing one string:

from openai import OpenAI

client = OpenAI(base_url="https://api.ohmygpt.com/v1", api_key="sk-...")

for model in ["openai/gpt-5.4-nano", "anthropic/claude-sonnet-5-5", "zhipu/glm-5.3-flash"]:
    reply = client.chat.completions.create(
        model=model,
        messages=[{"role": "user", "content": "Say hello in one word."}],
    )
    print(model, reply.choices[0].message.content)

• Test for free. The ohmygpt/mock model answers every endpoint at no cost, so you can check your integration before spending anything.
• See every charge. Each response carries its exact cost in the X-Cost-Credits header.
• Failover is built in. When a model has several providers and one fails before answering, OhMyGPT sends the request to another. Your code makes one call.

Base URL and protocolsCopy Anchor Link

The base URL is https://api.ohmygpt.com. Chat models accept all four protocols below, so you can call a Claude model through the OpenAI SDK, or a GPT model through the Anthropic SDK. The model list shows the endpoints each model accepts.

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