@chinudotdev/provider-anthropic

Anthropic Messages API agent-core/v1 provider adapter — SSE streaming, tools, images, thinking extensions.

Install

npm install @chinudotdev/provider-anthropic

Quick start

import { createAnthropicProvider } from "@chinudotdev/provider-anthropic";

const provider = createAnthropicProvider({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  baseURL: "https://api.anthropic.com", // optional
});

for await (const event of provider.stream(
  {
    spec: "agent-core/v1",
    model: "claude-sonnet-4-20250514",
    messages: [{ role: "user", content: [{ type: "text", text: "Hello" }] }],
    params: { max_tokens: 1024 },
  },
  new AbortController().signal,
)) {
  if (event.type === "text_delta") process.stdout.write(event.text);
  if (event.type === "stop") break;
}

Environment helper

import { createProviderFromEnv } from "@chinudotdev/provider-anthropic";
// Reads ANTHROPIC_API_KEY, optional ANTHROPIC_BASE_URL

With Agent SDK

import { Agent } from "@chinudotdev/agent";
import { createProviderFromEnv } from "@chinudotdev/provider-anthropic";

const agent = new Agent({
  model: "claude-sonnet-4-20250514",
  provider: createProviderFromEnv(),
});

Notes

• max_tokens is required by the Anthropic API; defaults to 1024 when omitted from params.
• Thinking blocks map to extension events (vendor: "anthropic", name: "thinking").

Examples

After install, a minimal smoke script ships at node_modules/@chinudotdev/provider-anthropic/examples/01-chat.ts.

Docs

• Provider guide
• Examples

License

MIT