Anthropic SDK

pip install "anthropic==1.2.0"

import os
from anthropic import Anthropic

client = Anthropic(
    api_key=os.environ["LLM_MART_API_KEY"],
    base_url="https://www.llmmart.ru/api",  # без /v1
)
message = client.messages.create(
    model="anthropic/claude-sonnet-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Привет!"}],
)
print(message.content[0].text)

npm install @anthropic-ai/sdk@0.122.0

import Anthropic from "@anthropic-ai/sdk";

const client = new Anthropic({
  apiKey: process.env.LLM_MART_API_KEY,
  baseURL: "https://www.llmmart.ru/api",
});

const message = await client.messages.create({
  model: "anthropic/claude-sonnet-5",
  max_tokens: 1024,
  messages: [{ role: "user", content: "Привет!" }],
});
console.log(message.content[0].text);

with client.messages.stream(
    model="anthropic/claude-sonnet-5",
    max_tokens=1024,
    messages=[{"role": "user", "content": "Привет!"}],
) as stream:
    for text in stream.text_stream:
        print(text, end="")