@anvia/anthropic: Getting Started

Install

pnpm add @anvia/anthropic @anvia/core

Configure credentials

Set ANTHROPIC_API_KEY in the server environment. Keep provider keys on the server side; browser clients should call an application route that owns the model request.

Minimum setup

import { AgentBuilder } from "@anvia/core";
import { AnthropicClient } from "@anvia/anthropic";

const client = new AnthropicClient({
  apiKey: process.env.ANTHROPIC_API_KEY,
});

const model = client.completionModel("claude-sonnet-4-20250514");

const agent = new AgentBuilder("assistant", model)
  .instructions("Answer clearly and concisely.")
  .build();

const response = await agent.prompt("Summarize this ticket.").send();
console.log(response.output);

Next step

Continue with Usage Patterns.