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Migrating from Anthropic SDK

This guide will help you migrate your existing Anthropic SDK integration to use the AI Stats Gateway instead.

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Overview

AI Stats Gateway provides Anthropic-compatible endpoints, making migration straightforward. You’ll primarily need to:
  • Change the API base URL
  • Update your API key
  • Update authentication method

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Prerequisites

  • An AI Stats account and API key (get one at AI Stats Dashboard)
  • Existing Anthropic SDK code

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Migration Steps

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1. Update API Key and Base URL

Instead of using the Anthropic API key and default base URL, use your AI Stats credentials. 
# Before (Anthropic)
curl https://api.anthropic.com/v1/messages \
  -H "x-api-key: sk-ant-your-anthropic-key" \
  -H "anthropic-version: 2023-06-01" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "claude-3-sonnet-20240229",
    "max_tokens": 100,
    "messages": [{"role": "user", "content": "Hello!"}]
  }'

# After (AI Stats)

curl https://api.phaseo.app/v1/messages \
 -H "Authorization: Bearer your-ai-stats-key" \
 -H "Content-Type: application/json" \
 -d '{
"model": "claude-3-sonnet-20240229",
"max_tokens": 100,
"messages": [{"role": "user", "content": "Hello!"}]
}'

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3. Test Your Integration

Run your existing code with the updated configuration to ensure it works.

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4. Handle Model Names

AI Stats supports Anthropic models. Check the models endpoint for available models. Model names should be compatible with Anthropic’s naming.

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Common Issues

  • Model not found: Ensure the model is available in AI Stats.
  • Rate limits: AI Stats may have different rate limits.
  • Features: Some Anthropic-specific features may work differently.

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Next Steps

  • Explore AI Stats’ additional features.
  • Check out the API Reference for full documentation.
Last modified on February 11, 2026