# Base Flashblocks RPC

**Canonical:** https://apis.io/apis/base-l2/flashblocks-rpc/  
**Provider:** Base — https://apis.io/providers/base-l2/  
**Base URL:** https://mainnet-preconf.base.org  
**Documentation:** https://docs.base.org/chain/flashblocks

Base Flashblocks RPC is one of 10 APIs that [Base](https://apis.io/providers/base-l2/) publishes on the [APIs.io](https://apis.io/) network. Tagged areas include Flashblocks, Pre-Confirmation, and JSON-RPC. The published artifact set on APIs.io includes API documentation.

Pre-confirmation JSON-RPC endpoint exposing Flashblocks — sub-block streams of ordered transactions that allow apps to react to pending state with sub-second latency.

## Machine-readable artifacts (1)

- **Documentation** — https://docs.base.org/chain/flashblocks

## Other Base APIs (9)

- [Base Mainnet JSON-RPC](https://apis.io/apis/base-l2/mainnet-rpc/)
- [Base Sepolia JSON-RPC](https://apis.io/apis/base-l2/sepolia-rpc/)
- [Base Bridge](https://apis.io/apis/base-l2/bridge/)
- [Base / Solana Bridge](https://apis.io/apis/base-l2/solana-bridge/)
- [Base Account / Smart Wallet](https://apis.io/apis/base-l2/account/)
- [OnchainKit](https://apis.io/apis/base-l2/onchainkit/)
- [BaseScan Block Explorer](https://apis.io/apis/base-l2/basescan-explorer/)
- [Base Blockscout Block Explorer](https://apis.io/apis/base-l2/blockscout-explorer/)
- [Base JSON-RPC API](https://apis.io/apis/base-l2/base-l2-json-rpc-api/)

## Tags

Flashblocks, Pre-Confirmation, JSON-RPC

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/apis/base-l2/flashblocks-rpc/). The API's provider profile, Kin Score and agent-readiness rating are at https://apis.io/providers/base-l2/.