What networks are supported?
Network support varies by product. See the Supported Networks page for a complete breakdown of which networks each Data product supports.What is the rate limit?
The default rate limit is 100 requests per second at both IP and project level. Contact us if you need higher limits.Do I need API keys?
- Browser playgrounds (SQL Playground, Node Playground): No API keys needed
- REST APIs and SDK: Yes, create free API keys in CDP Portal
How fresh is the data?
- SQL API: < 500ms latency with data < 250ms from chain tip
- Node RPC: Real-time access to the latest block
- Webhooks: < 500ms end-to-end notification delivery