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Python SDK

Anthropic protocol (no /v1)

Official anthropic library.

Base URL
https://llmapi.pro
API Key
sk-... (create in Console → API Keys)
Choose a model
Copy the exact model ID from the subscription model list or pay-as-you-go channels, and check that your client protocol supports it. The model catalogue labels each model’s billing mode.
A monthly subscription uses a subscription key, with supported models sharing the plan quota. Pay-as-you-go API billing uses a separate key and balance. Select the matching key type in the Console, then configure your client protocol. Topping up API credit does not increase subscription quota.

Setup steps

from anthropic import Anthropic

client = Anthropic(
    api_key="sk-YOUR_KEY",
    base_url="https://llmapi.pro",
)
msg = client.messages.create(
    model="claude-opus-4-8",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Hello"}],
)
print(msg.content[0].text)

Notes

Client not listed? Any "OpenAI-compatible" app works: Base URL = https://llmapi.pro/v1, key = your sk-..., type the model name. Or email support@llmapi.pro.
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