# zkSync Era Sepolia JSON-RPC

**Canonical:** https://apis.io/apis/zksync/era-sepolia-rpc/  
**Provider:** zkSync — https://apis.io/providers/zksync/  
**Base URL:** https://sepolia.era.zksync.dev  
**Documentation:** https://docs.zksync.io/build/api-reference/api

zkSync Era Sepolia JSON-RPC is one of 10 APIs that [zkSync](https://apis.io/providers/zksync/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include JSON-RPC, Testnet, and Sepolia. The published artifact set on APIs.io includes API documentation.

JSON-RPC endpoint for the zkSync Era Sepolia testnet (chain ID 300) used for development, contract deployment, and integration testing.

## Machine-readable artifacts (1)

- **Documentation** — https://docs.zksync.io/build/api-reference/api

## Other zkSync APIs (9)

- [zkSync Era Mainnet JSON-RPC](https://apis.io/apis/zksync/era-mainnet-rpc/)
- [zkSync Era WebSocket](https://apis.io/apis/zksync/era-websocket/)
- [zksync-ethers SDK](https://apis.io/apis/zksync/zksync-ethers/)
- [zksync2-go SDK](https://apis.io/apis/zksync/zksync-go/)
- [hardhat-zksync](https://apis.io/apis/zksync/hardhat-zksync/)
- [foundry-zksync](https://apis.io/apis/zksync/foundry-zksync/)
- [zkSync Era Bridge](https://apis.io/apis/zksync/bridge/)
- [ZK Stack](https://apis.io/apis/zksync/zk-stack/)
- [zkSync Era Block Explorer API](https://apis.io/apis/zksync/explorer-api/)

## Tags

JSON-RPC, Testnet, Sepolia

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/zksync/era-sepolia-rpc/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/zksync/.