Class AnthropicProvider

Anthropic provider implementation for Stratix AI Agents.

Requires explicit model configuration - no defaults provided. Supports Claude 3 models (Opus, Sonnet, Haiku) with tool use and streaming. Note: Anthropic does not support embeddings.

Example: Using predefined model constants

import { AnthropicProvider } from '@stratix/ai-anthropic';

const provider = new AnthropicProvider({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  models: [
    { name: 'claude-sonnet-4-5-20250929', pricing: { input: 3.0, output: 15.0 } },
    { name: 'claude-opus-4-5-20251101', pricing: { input: 5.0, output: 25.0 } }
  ]
});

const response = await provider.chat({
  model: 'claude-sonnet-4-5-20250929',
  messages: [{ role: 'user', content: 'Hello!', timestamp: new Date() }]
});

Example: Custom models with updated pricing

const provider = new AnthropicProvider({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  models: [
    { name: 'claude-sonnet-4-5-20250929', pricing: { input: 3.5, output: 17.5 } },
    { name: 'claude-opus-4-5-20251101', pricing: { input: 25.0, output: 125.0 } }
  ]
});

Example: Without pricing (calculateCost returns 0)

const provider = new AnthropicProvider({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  models: [
    { name: 'claude-sonnet-4-5-20250929' }
  ]
});

Example: Streaming

for await (const chunk of provider.streamChat({
  model: 'claude-3-5-sonnet-20241022',
  messages: [{ role: 'user', content: 'Write a story', timestamp: new Date() }]
})) {
  process.stdout.write(chunk.content);
}

Implements

  • LLMProvider

Constructors

constructor

Methods

chat streamChat embeddings calculateCost

Properties

name models

Constructors

constructor

Methods

chat

  • chat(params: ChatParams): Promise<ChatResponse>

    Sends a chat completion request

    Parameters

    • params: ChatParams

      Chat parameters

    Returns Promise<ChatResponse>

    The chat completion response

streamChat

  • streamChat(params: ChatParams): AsyncIterable<ChatChunk>

    Streams a chat completion response

    Parameters

    • params: ChatParams

      Chat parameters

    Returns AsyncIterable<ChatChunk>

    Async iterable of chat chunks

embeddings

  • embeddings(_params: EmbeddingParams): Promise<EmbeddingResponse>

    Generates embeddings for the given input

    Parameters

    • _params: EmbeddingParams

    Returns Promise<EmbeddingResponse>

    The embedding vectors

calculateCost

  • calculateCost(model: string, usage: TokenUsage): number

    Calculates the cost of a chat completion based on token usage. Returns 0 if no pricing information is available for the model.

    Parameters

    • model: string

      The model used

    • usage: TokenUsage

      Token usage information

    Returns number

    Cost in USD, or 0 if pricing not configured

Properties

Readonlyname

name: "anthropic" = 'anthropic'

Unique name of the provider (e.g., 'openai', 'anthropic', 'local')

Readonlymodels

models: string[]

List of supported models

Settings

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Constructors
Methods
Properties