@haiec/anthropic

@haiec/anthropic

Anthropic Claude SDK wrapper with automatic usage tracking and cost calculation for HAIEC AI Inventory.

Features

• ✅ Automatic Usage Tracking - Logs every API call to HAIEC
• ✅ Cost Calculation - Calculates costs based on model pricing
• ✅ Streaming Support - Works with both regular and streaming responses
• ✅ Low Overhead - <10ms additional latency
• ✅ Error Handling - Gracefully handles tracking failures
• ✅ Drop-in Replacement - Works exactly like the official Anthropic SDK

Installation

npm install @haiec/anthropic @anthropic-ai/sdk

Usage

Basic Example

import TrackedAnthropic from '@haiec/anthropic';

const client = new TrackedAnthropic({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  haiecApiKey: process.env.HAIEC_API_KEY!,
});

const response = await client.messages.create({
  model: 'claude-3-opus-20240229',
  max_tokens: 1024,
  messages: [{ role: 'user', content: 'Hello, Claude!' }],
});

console.log(response.content[0].text);

Streaming Example

const stream = await client.messages.stream({
  model: 'claude-3-sonnet-20240229',
  max_tokens: 1024,
  messages: [{ role: 'user', content: 'Tell me a story' }],
});

for await (const event of stream) {
  if (event.type === 'content_block_delta') {
    process.stdout.write(event.delta.text);
  }
}

const finalMessage = await stream.finalMessage();
// Usage is automatically logged when stream completes

Configuration

const client = new TrackedAnthropic({
  apiKey: 'sk-ant-...', // Your Anthropic API key
  haiecApiKey: 'haiec_...', // Your HAIEC API key
  haiecEndpoint: 'https://haiec.com/api/v1/inventory/usage/log', // Optional: Custom endpoint
});

Self-Hosted HAIEC

const client = new TrackedAnthropic({
  apiKey: process.env.ANTHROPIC_API_KEY!,
  haiecApiKey: process.env.HAIEC_API_KEY!,
  haiecEndpoint: 'https://your-haiec-instance.com/api/v1/inventory/usage/log',
});

Supported Models & Pricing

Model	Input Cost (per 1M tokens)	Output Cost (per 1M tokens)
claude-3-opus-20240229	$15.00	$75.00
claude-3-sonnet-20240229	$3.00	$15.00
claude-3-haiku-20240307	$0.25	$1.25
claude-2.1	$8.00	$24.00
claude-2.0	$8.00	$24.00
claude-instant-1.2	$0.80	$2.40

Pricing is automatically updated based on Anthropic's latest rates.

What Gets Tracked

For each API call, the following data is logged to HAIEC:

• Provider: anthropic
• Model: e.g., claude-3-opus-20240229
• Endpoint: messages or messages.stream
• Request Tokens: Number of input tokens
• Response Tokens: Number of output tokens
• Cost: Calculated cost in USD
• Latency: Response time in milliseconds
• Status Code: HTTP status code
• Error Message: If the request failed

Performance

• Overhead: <10ms per request
• Async Logging: Usage is logged asynchronously to avoid blocking
• Streaming: No additional overhead for streaming responses
• Error Handling: Tracking failures don't affect your API calls

Error Handling

If usage tracking fails, the error is logged to console but your Anthropic API call continues normally:

try {
  const response = await client.messages.create({...});
  // Your response is returned even if tracking fails
} catch (error) {
  // Only Anthropic API errors are thrown
}

API Compatibility

This wrapper maintains 100% compatibility with the official Anthropic SDK. All methods and parameters work exactly the same.

Streaming Support

Both regular and streaming responses are fully supported:

// Regular response
const response = await client.messages.create({...});

// Streaming response
const stream = await client.messages.stream({...});
for await (const event of stream) {
  // Process events
}

Usage is automatically tracked for both modes.

Getting Your HAIEC API Key

• Sign up at haiec.com
• Navigate to Settings > API Keys
• Click "Create API Key"
• Copy your key and add it to your environment variables

Comparison with OpenAI Wrapper

Feature	@haiec/openai	@haiec/anthropic
Provider	OpenAI	Anthropic
Streaming	✅	✅
Cost Tracking	✅	✅
Error Handling	✅	✅
Overhead	<10ms	<10ms

Support

• Documentation: docs.haiec.com
• Issues: GitHub Issues
• Email: [e-mail]

License

MIT