Jito Block Engine sendBundle (with landing confirmation)

curl --request POST \
  --url https://api.lpagent.io/open-api/v1/jito \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "params": [
    "<unknown>"
  ],
  "id": 123
}
'

{
  "jsonrpc": "2.0",
  "id": 123,
  "result": {
    "bundleId": "<string>",
    "signature": "<string>"
  }
}

RPC

Jito Block Engine sendBundle (with landing confirmation)

JSON-RPC 2.0 endpoint that submits a bundle to the Jito Block Engine and waits for it to land. Internally calls sendJitoBundle, which simulates the bundle, sends it to https://<region>.mainnet.block-engine.jito.wtf/api/v1/bundles, polls signature status until the first transaction is confirmed (up to ~30s), and retries on failure.

Spec reference: https://docs.jito.wtf/lowlatencytxnsend/#sendbundle

Notes:

On success the response is HTTP 200 with a result object. On failure the response is HTTP 400 with a JSON-RPC error envelope.
Bundle size is capped at 5 transactions (Jito limit).
Transactions must already include a tip instruction; this endpoint does NOT inject tips.
Transactions must be fully signed (all required signatures present) before submission. Unsigned bundles return HTTP 400 with JSON-RPC INVALID_PARAMS and data.unsignedIndices listing the offending positions.
This endpoint blocks until the bundle lands or polling/retries are exhausted.

POST

jito

Jito Block Engine sendBundle (with landing confirmation)

curl --request POST \
  --url https://api.lpagent.io/open-api/v1/jito \
  --header 'Content-Type: application/json' \
  --header 'x-api-key: <api-key>' \
  --data '
{
  "params": [
    "<unknown>"
  ],
  "id": 123
}
'

{
  "jsonrpc": "2.0",
  "id": 123,
  "result": {
    "bundleId": "<string>",
    "signature": "<string>"
  }
}

Authorizations

x-api-key

string

header

required

API key for authentication

Query Parameters

region

enum<string>

default:mainnet

Jito block engine region

Available options:

mainnet,

amsterdam,

frankfurt,

ny,

tokyo

Body

application/json

jsonrpc

enum<string>

required

Available options:

2.0

method

enum<string>

required

Available options:

sendBundle

params

any[]

required

[transactions[] (1-5 base58/base64 encoded txs), options? ({ encoding: 'base58' | 'base64' })]

Required array length: 1 - 2 elements

Request id, echoed back in the response

Response

Success — JSON-RPC envelope with result set to the bundle landing details.

jsonrpc

string

Example:

"2.0"

result

object

Bundle landing details

Show child attributes

Solana JSON-RPC proxy (sendTransaction)

Documentation Index

Authorizations

Query Parameters

Body

Response