Claude Agent SDK

# The SDK has no base_url option. The CLI it spawns reads these, and the
# SDK passes the parent environment straight through — so exporting them
# before your program starts is enough.
export ANTHROPIC_BASE_URL=https://api.kunavo.com
export ANTHROPIC_AUTH_TOKEN=sk-kn-...

# Pin models Kunavo serves: the CLI's default and its opus/sonnet aliases
# follow Anthropic's newest models, and the sonnet alias asks for Sonnet 5.5,
# which Kunavo does not serve — unpinned, those requests 404.
export ANTHROPIC_MODEL=claude-sonnet-5
export ANTHROPIC_DEFAULT_OPUS_MODEL=claude-opus-5-5
export ANTHROPIC_DEFAULT_SONNET_MODEL=claude-sonnet-5
export ANTHROPIC_DEFAULT_HAIKU_MODEL=claude-haiku-4-5

python my_agent.py

from claude_agent_sdk import ClaudeSDKClient, ClaudeAgentOptions

# The explicit form. options.env is merged ON TOP of the inherited
# environment, so this wins over whatever the shell happens to hold —
# which is what you want in anything that is not your own laptop.
options = ClaudeAgentOptions(
    env={
        "ANTHROPIC_BASE_URL": "https://api.kunavo.com",
        "ANTHROPIC_AUTH_TOKEN": "sk-kn-...",
        "ANTHROPIC_MODEL": "claude-sonnet-5",
        "ANTHROPIC_DEFAULT_OPUS_MODEL": "claude-opus-5-5",
        "ANTHROPIC_DEFAULT_SONNET_MODEL": "claude-sonnet-5",
        "ANTHROPIC_DEFAULT_HAIKU_MODEL": "claude-haiku-4-5",
    },
)

async with ClaudeSDKClient(options=options) as client:
    await client.query("Summarise the open TODOs in this repo")
    async for message in client.receive_response():
        print(message)

# Settles whether a failure is the key, the endpoint, or the SDK.
# 200 here means the same credential works for the CLI the SDK spawns.
curl -sS https://api.kunavo.com/v1/messages \
  -H "Authorization: Bearer sk-kn-..." \
  -H "anthropic-version: 2023-06-01" \
  -H "content-type: application/json" \
  -d '{"model":"claude-haiku-4-5","max_tokens":16,
       "messages":[{"role":"user","content":"ping"}]}'