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Optimism Binance Smart Chain RPC Use Uniblock’s JSON-RPC endpoint to access Optimism Binance Smart Chain with low-latency routing and a single API surface across providers.

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What is Optimism Binance Smart Chain?

Optimism Binance Smart Chain is an EVM-compatible mainnet.

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What is the Optimism Binance Smart Chain 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=204. Include the JSON-RPC method and params in the request body.

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Supported networks

NetworkTypeChain ID
Optimism Binance Smart ChainMainnet204
Optimism Binance Smart Chain TestnetTestnet5611

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API reference

Browse the available method groups for this chain: