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
Detailed specifications designed for AI agents and applications + MCP support
Advanced Request Capabilities
Flattened data structure and flexible metric selection
Unified API Standards
Standardized response formats, authentication, and request patterns
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:
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.
Previous versions
Single metric per request → Multiple API calls required
API V5
Multiple metrics per request → Unified, efficient data retrieval
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.
To see response examples and test all the available endpoints visit the API Explorer.
Automatic Changelog
New endpoints and features will be added to the changelog as they become available so you can stay updated in real-time.
On this page
- What's New in V5