"""Anthropic SDK + Distil proxy example.

Run `distil proxy` first, then point the SDK at it:

distil proxy --port 8788 --upstream https://api.anthropic.com

Every request is transparently compressed before being forwarded.

No other code changes are needed — the SDK behaves exactly as normal.

"""

import os

import anthropic

# Point the SDK at the local proxy instead of api.anthropic.com.

# The proxy forwards all traffic (including your API key header) to the

# real upstream after compressing the messages array.

client = anthropic.Anthropic(

api_key=os.environ["ANTHROPIC_API_KEY"],

base_url="http://127.0.0.1:8788",

)

response = client.messages.create(

model="claude-opus-4-5",

max_tokens=1024,

system="You are a helpful assistant.",

messages=[{"role": "user", "content": "Summarise the key ideas behind prompt compression."}],

)

print(response.content[0].text)

# The proxy adds two informational response headers:

# x-distil-compressed: 1 — compression was applied

# x-distil-tokens-saved: <n> — estimated tokens saved this turn

# These are passed through to the client but do not affect the response body.