> For the complete documentation index, see [llms.txt](https://docs.novarpc.xyz/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.novarpc.xyz/rpc-api-specification/eth_sendbundle.md).

# eth\_sendBundle

## POST /

> \
> Submits a bundle of signed transactions to be executed atomically in a specific target block.\
> \
> \*\*Note\*\*\
> \- Acceptance does not mean the bundle will be included on-chain.\
> \- Inclusion depends on profitability, builder policies, and competing orderflow.<br>

```json
{"openapi":"3.1.0","info":{"title":"api-docs","version":"0.1.0"},"servers":[{"url":"https://eth.novarpc.xyz","description":"Mainnet"},{"url":"https://base.novarpc.xyz","description":"Base"}],"paths":{"/":{"post":{"tags":["RPC"],"description":"\nSubmits a bundle of signed transactions to be executed atomically in a specific target block.\n\n**Note**\n- Acceptance does not mean the bundle will be included on-chain.\n- Inclusion depends on profitability, builder policies, and competing orderflow.\n","operationId":"eth_sendBundle","parameters":[{"name":"api_key","in":"query","required":true,"schema":{"type":"string"}},{"name":"nomevrecovery","in":"query","description":"When present, disables MEV recovery (backrunning) for this request.","required":false,"schema":{"type":"boolean","default":false}},{"name":"norefund","in":"query","description":"When present, broadcasts this order without requesting a priority-fee refund, which\nincreases the likelihood of inclusion.","required":false,"schema":{"type":"boolean","default":false}}],"requestBody":{"content":{"application/json":{"schema":{"$ref":"#/components/schemas/EthSendBundle"}}},"required":true},"responses":{"200":{"description":"","content":{"application/json":{"schema":{"$ref":"#/components/schemas/OrderHash"}}}}}}}},"components":{"schemas":{"EthSendBundle":{"type":"object","required":["txs"],"properties":{"allowBackruns":{"type":["boolean","null"],"description":"If `false`, MEV recovery (backrunning) is disabled for this bundle. Defaults to your account setting."},"blockNumber":{"oneOf":[{"type":"null"},{"$ref":"#/components/schemas/BlockNumber","description":"The block number for which the bundle is valid, encoded as a hexadecimal string. Defaults to the current block."}]},"txs":{"type":"array","items":{"$ref":"#/components/schemas/Transaction"},"description":"An array of signed raw transactions to execute in an atomic bundle"}}},"BlockNumber":{"type":"string","pattern":"^0x[a-fA-F0-9]*$"},"Transaction":{"type":"string","description":"Raw transaction data, encoded as a hexadecimal string.","pattern":"^0x[a-fA-F0-9]*$"},"OrderHash":{"type":"string","pattern":"^0x[a-fA-F0-9]{64}$"}}}}
```


---

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