Migrating from Anthropic

The ai& Inference API exposes Anthropic-compatible endpoints alongside its OpenAI surface. If you’re using the anthropic SDK, you can migrate by changing the base URL and the API key.

Change two things

Python
Node.js

from anthropic import Anthropic

client = Anthropic(
    base_url="https://api.aiand.com",
    api_key="sk-your-aiand-api-key",
)

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

const client = new Anthropic({
  baseURL: "https://api.aiand.com",
  apiKey: "sk-your-aiand-api-key",
});

The anthropic-version header the SDK sends automatically tells ai& to respond with Anthropic-shape payloads — including on the dual-shape Files endpoints.

Supported endpoints

Anthropic endpoint	ai& path	Notes
`/v1/messages`	Messages	Streaming + tool use + vision
`/v1/files`	Files	Anthropic shape selected by `anthropic-version` header

What’s different

API keys start with sk- (not sk-ant-) — see Authentication.
Model IDs differ from Anthropic’s. List them via the catalog or client.models.list() on the OpenAI surface.