Anthropic SDK Setup Guide

# Two keys: your Lucairn key (rate-limit + audit identity)
# and your Anthropic key (BYOK — forwarded upstream per request).
export LUCAIRN_API_KEY="lcr_live_..."
export ANTHROPIC_API_KEY="sk-ant-..."

# Python
pip install anthropic

# TypeScript
npm install @anthropic-ai/sdk

import os
import anthropic

client = anthropic.Anthropic(
    api_key=os.environ["LUCAIRN_API_KEY"],            # Lucairn key — sent as x-api-key
    base_url="https://gateway.lucairn.eu",            # Lucairn Gateway
    default_headers={
        "X-Upstream-Key": os.environ["ANTHROPIC_API_KEY"],  # your Anthropic key (BYOK)
    },
)

response = client.messages.create(
    model="claude-sonnet-4-6",
    max_tokens=1024,
    messages=[{
        "role": "user",
        "content": (
            "Bitte fasse den Fall zusammen: "
            "Patientin Anna Schmidt, geb. 14.03.1978, "
            "IBAN DE89 3704 0044 0532 0130 00, "
            "wurde am 02.05.2026 in der Charite vorgestellt."
        ),
    }],
)

print(response.content[0].text)
print(response.metadata["dsa_compliance"]["veil_summary_url"])

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

const client = new Anthropic({
  apiKey: process.env.LUCAIRN_API_KEY!,                // Lucairn key — sent as x-api-key
  baseURL: "https://gateway.lucairn.eu",               // Lucairn Gateway
  defaultHeaders: {
    "X-Upstream-Key": process.env.ANTHROPIC_API_KEY!,  // your Anthropic key (BYOK)
  },
});

const response = await client.messages.create({
  model: "claude-sonnet-4-6",
  max_tokens: 1024,
  messages: [{
    role: "user",
    content:
      "Bitte fasse den Fall zusammen: Patientin Anna Schmidt, " +
      "geb. 14.03.1978, IBAN DE89 3704 0044 0532 0130 00, " +
      "wurde am 02.05.2026 in der Charite vorgestellt.",
  }],
});

console.log(response.content[0]);
// @ts-expect-error metadata.dsa_compliance is a Lucairn extension
console.log(response.metadata?.dsa_compliance?.veil_summary_url);

curl https://gateway.lucairn.eu/v1/messages \
  -H "x-api-key: $LUCAIRN_API_KEY" \
  -H "X-Upstream-Key: $ANTHROPIC_API_KEY" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-sonnet-4-6",
    "max_tokens": 256,
    "messages": [{
      "role": "user",
      "content": "Patientin Anna Schmidt, IBAN DE89 3704 0044 0532 0130 00 — bitte zusammenfassen."
    }]
  }'