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CDP Onchain Tools gives you infrastructure-level access to everything below the application layer: sponsor gas for your users, query onchain data at scale, and fund testnet accounts during development.

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Tools at a glance

Paymaster

Sponsor gas fees on behalf of your users. Works with ERC-4337 smart accounts on Base to create gasless experiences without users needing ETH.

Data

Query and monitor onchain data with sub-500ms latency. Includes a SQL API, RPC node access, token balances, wallet history, and real-time webhooks.

Faucet

Claim testnet tokens for Base Sepolia, Ethereum Sepolia, and Solana Devnet during development.

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Choosing the right tool

Eliminate gas friction for your users. Use Paymaster to sponsor ERC-4337 smart account transactions on Base so users never need to hold ETH. Read or monitor onchain state. Use Data to query balances, transaction history, or live events via SQL, RPC, or webhooks — no node infrastructure required. Get testnet tokens for development. Use the Faucet to claim ETH, ERC-20, or SPL tokens on Base Sepolia, Ethereum Sepolia, and Solana Devnet.