# bombora

> Bombora is an Ethereum block builder by Sigma Prime. Submit private Ethereum transactions and bundles through Bombora's Mainnet JSON-RPC endpoint.

## Docs

- [Builder Public Keys](/docs/builder-public-keys.md): Bombora submits Ethereum Mainnet blocks only with the builder public keys below.
- [eth_cancelBundle](/docs/eth-cancelBundle.md): Cancel a pending bundle by its replacement UUID. The bundle is removed from the pool and any pending built blocks containing it are invalidated.
- [eth_cancelPrivateTransaction](/docs/eth-cancelPrivateTransaction.md): Cancel a pending private Ethereum transaction by its transaction hash.
- [eth_sendBundle](/docs/eth-sendBundle.md): Submit a bundle of Ethereum transactions for ordered execution within a block. Transactions execute in the order submitted, with explicit controls for revertable and optional transactions.
- [eth_sendPrivateTransaction](/docs/eth-sendPrivateTransaction.md): Submit a single private Ethereum transaction with an optional block number ceiling. The transaction is not broadcast to the public mempool.
- [eth_sendRawTransaction](/docs/eth-sendRawTransaction.md): Submit a single signed Ethereum transaction privately. The transaction is not broadcast to the public mempool.
- [Getting Started](/docs/getting-started.md): Bombora is an Ethereum block builder by [Sigma Prime](https://sigmaprime.io). Submit bundles and private Ethereum transactions via the JSON-RPC endpoint.