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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.

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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.

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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

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What’s the difference between Wallet History API and Smart Contract Events API?

  • Wallet History API: Simple, pre-indexed wallet transactions and balances—ready to query
  • Smart Contract Events API: Upload custom ABIs to decode specific contract events—more flexible for custom contracts

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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

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How much does it cost?

CDP Onchain Data offers a free tier with 100 requests/second. For higher limits and enterprise features, contact us in CDP Discord #onchain-data channel.

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Where can I get help?

Join #onchain-data in the CDP Discord to connect with our team and other developers.
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