Anthropic
How to use GATE/0 with Anthropic
GATE/0 is fully compatible with the Anthropic REST API, making integration seamless. Simply point your existing Anthropic client to GATE/0’s endpoint — no code changes required. You can enrich requests with custom labels to enable detailed tracking, cost allocation, and forecasting.
Whether you're using anthropic.messages.create() or other endpoints, GATE/0 acts as a transparent proxy, preserving all functionality while adding powerful analytics and observability.
Set up your Anthropic provider in GATE/0
Install Anthropic SDK
pip install anthropicnpm install @anthropic-ai/sdkConfigure the GATE/0 API key Set your GATE/0 API key as an environment variable:
export GATE0_API_KEY=your-gate0-api-keyStart using Anthropic SDK
import Anthropic from '@anthropic-ai/sdk';
const anthropic = new Anthropic({
apiKey: process.env.GATE0_API_KEY, // API key provided by GATE0
baseURL: "https://gateway.gate.io/v1", // GATE0 cloud proxy URL
});
const msg = await anthropic.messages.create(
{
model: "anthropic/claude-sonnet-4-20250514", // Model name with provider prefix
max_tokens: 1024,
messages: [{ role: "user", content: "Hello, how are you?" }],
},
{
headers: {
"x-gate0-label-project": "alpha-1",
"x-gate0-label-client": "frontend",
"x-gate0-label-env": "prod"
}
}
);
console.log(msg);from anthropic import Anthropic
import os
client = Anthropic(
base_url="https://gateway.gate.io/v1", # GATE0 cloud gateway URL
api_key=os.environ.get("GATE0_API_KEY"), # API key provided by GATE0
)
message = client.messages.create(
model="anthropic/claude-3-5-sonnet-latest", # Model name with provider prefix
max_tokens=1024,
messages=[
{"role": "user", "content": "Hello, Claude"}
],
extra_headers={ # Custom labels
"x-gate0-label-project":"alpha",
"x-gate0-label-client":"frontend",
"x-gate0-label-env":"prod"
}
)
print(message.content)Explanation of the implementation
- An instance of
Anthropicis created with the base URL set tohttps://gateway.gate0.io/v1, using your GATE0 API key instead of the default Anthropic key. - A prefixed model name is used. Make sure the model name is prefixed with the provider slug (e.g., use
anthropic/claude-sonnet-4-20250514instead ofclaude-sonnet-4-20250514). - Custom labels are included to allocate and track costs more effectively.