What's New in V5

Main Improvements

V5 introduces major improvements for better developer experience and performance making integration faster, more flexible, and more powerful. These improvements maintain full compatibility with existing API pricing while delivering better performance and usability.

AI and MCP Ready

V5 includes comprehensive specifications designed for AI agents and applications, LLMs, automation tools, and vibe-coding platforms. Check the following guides to learn more about how you can connect Similarweb data to your AI tools and use our data more efficiently:

• MCP Server integration guide

Advanced Request Capabilities

Flexible Metric Selection

Choose exactly the metrics you need - from a single data point to comprehensive multi-metric analysis in one request.

What does it mean for you:

• Reduced API Calls: Get related metrics in single requests
• Faster Dashboards: Build comprehensive views with fewer API calls.

Single API Key (Batch and REST)

Unlike in V4, where separate keys were required for REST and Batch endpoints, you can now pull data from any endpoint using a single key

Unified API Standards

Consistent behavior across all endpoints - V5 standardizes response formats, error handling, and request patterns across every endpoint. This means once you learn one endpoint, you understand them all.

Automatic Changelog

New endpoints and features will be added to the changelog as they become available so you can stay updated in real-time.