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Ethereum Sepolia RPC Use Uniblock’s JSON-RPC endpoint to access Ethereum Sepolia with low-latency routing and a single API surface across providers.

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What is Ethereum Sepolia?

Ethereum Sepolia is an EVM-compatible testnet. It is a testnet for Ethereum.

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What is the Ethereum Sepolia JSON-RPC API?

The JSON-RPC API is the standard interface for reading chain state, sending transactions, and interacting with smart contracts where supported.

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Making API requests

Send a POST request to https://api.uniblock.dev/uni/v1/json-rpc?chainId=11155111. Include the JSON-RPC method and params in the request body.

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Supported networks

NetworkTypeChain ID
EthereumMainnet1
Ethereum HoodiTestnet560048
Ethereum SepoliaTestnet11155111

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API reference

Browse the available method groups for this chain: