Anvia

Anthropic ​

@anvia/anthropic runs Anvia completions, agents, extractors, and pipelines on Claude. It adapts Anthropic's Messages API into the provider-neutral completion contract used throughout the SDK.

Use the same adapter with either Anthropic's direct API or Claude on Google Vertex AI. Only the client setup changes; the model passed to the rest of the application remains an Anvia completion model.

Choose a connection ​

Use AnthropicClient with an Anthropic API key for the direct service.

Use AnthropicVertexClient with Google Application Default Credentials for Claude on Vertex AI.

Use AnthropicClient with baseUrl only for an endpoint that intentionally implements the Anthropic Messages shape.

Start with the direct API unless the application already runs Claude through Google Cloud or needs an Anthropic-compatible gateway.

Create a model ​

ts
import { AnthropicClient } from '@anvia/anthropic'

const anthropic = new AnthropicClient({
  apiKey: process.env.ANTHROPIC_API_KEY!,
})

export const model = anthropic.completionModel({
    modelId: 'claude-sonnet-5'
})

Pass model to an agent, direct completion, extractor, or pipeline. Keep the client and credentials in server-only code.

What the adapter supports ​

The completion adapter supports streaming, tools, tool choice, image input, file-document input, multimodal tool results, and Anthropic reasoning content. It does not declare support for Anvia final output schemas or provider-executed tools.

That distinction matters: use tool-backed extraction when you need structured data, and do not assume generateCompletion(...) or the agent outputSchema option is portable to this provider.

In this section ​

  • Setup installs the package and creates a client.
  • Capabilities covers streaming, tools, media, reasoning, and structured data.
  • Model options explains model IDs and request settings.
  • Vertex AI configures Google authentication.
  • Production covers boundaries, testing, and operational checks.

Built for Anvia.