The anthropic function configures Anthropic’s Claude as your model provider. 
import { createAgent, anthropic } from "@inngest/agent-kit";

const agent = createAgent({
  name: "Code writer",
  system: "You are an expert TypeScript programmer.",
  model: anthropic({
    model: "claude-3-opus",
    // Note: max_tokens is required for Anthropic models
    defaultParameters: { max_tokens: 4096 },
  }),
});

​
Configuration

The anthropic function accepts a model name string or a configuration object: 
const agent = createAgent({
  model: anthropic({
    model: "claude-3-opus",
    apiKey: process.env.ANTHROPIC_API_KEY,
    baseUrl: "https://api.anthropic.com/v1/",
    betaHeaders: ["computer-vision"],
    defaultParameters: { temperature: 0.5, max_tokens: 4096 },
  }),
});
Note: defaultParameters.max_tokens is required.

​
Options

​
model
string
required
ID of the model to use. See the model endpoint compatibility table for details on which models work with the Anthropic API.
​
max_tokens
number
deprecated
This option has been moved to the defaultParameters option.
The maximum number of tokens to generate before stopping.
​
apiKey
string
The Anthropic API key to use for authenticating your request. By default we’ll search for and use the ANTHROPIC_API_KEY environment variable.
​
betaHeaders
string[]
The beta headers to enable, eg. for computer use, prompt caching, and so on.
​
baseUrl
string
default:"https://api.anthropic.com/v1/"
The base URL for the Anthropic API.
​
defaultParameters
object
required
The default parameters to use for the model (ex: temperature, max_tokens, etc).
Note: defaultParameters.max_tokens is required.

​
Available Models

Anthropic
"claude-3-5-haiku-latest"
"claude-3-5-haiku-20241022"
"claude-3-5-sonnet-latest"
"claude-3-5-sonnet-20241022"
"claude-3-5-sonnet-20240620"
"claude-3-opus-latest"
"claude-3-opus-20240229"
"claude-3-sonnet-20240229"
"claude-3-haiku-20240307"
"claude-2.1"
"claude-2.0"
"claude-instant-1.2"