sendBundle
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`sendBundle` submits an **ordered bundle** of fully-signed Solana transactions to be executed back-to-back, atomically, within a single block. Either every transaction in the bundle lands in the given order, or none of them do — there is no partial execution. This is the submission counterpart to [`simulateBundle`](./simulateBundle.md), which dry-runs the same bundle without broadcasting it.
Because the bundle lands atomically and in order, later transactions can safely depend on the state changes produced by earlier ones (for example, a swap that funds a later repay). Use it for MEV / atomic-arbitrage strategies and any sequence of dependent transactions that must not be interleaved with other traffic.
This is a **pro-tier-only** method, rate-limited separately under the `sol_send_bundle` category at 10 RPS (pro) / 30 RPS (business), with burst headroom of twice the sustained limit. Always [`simulateBundle`](./simulateBundle.md) first: a bundle that would revert is rejected at submission, and you still consume your send budget.
Parameters
This method takes no parameters.
Returns
| Field | Type |
|---|---|
| result | object |
Examples
curl https://<your-endpoint>/ \
-X POST -H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":1,"method":"sendBundle","params":[]}'const res = await fetch("https://<your-endpoint>/", {
method: "POST",
headers: { "Content-Type": "application/json" },
body: JSON.stringify({
"id": 1,
"method": "sendBundle",
"params": [],
"jsonrpc": "2.0"
}),
});
const data = await res.json();import requests
resp = requests.post("https://<your-endpoint>/", json={"id":1,"method":"sendBundle","params":[],"jsonrpc":"2.0"})
print(resp.json())Usage
- Transport: HTTP (JSON-RPC).
- Networks: mainnet, devnet, testnet.
- Credit cost: 5 per call.
FAQ
- What does sendBundle do?
- Submits an ordered MEV bundle — a list of Solana transactions — to be landed atomically, all-or-nothing, in a single block.
- How many credits does sendBundle cost?
- sendBundle costs 5 credit(s) per call on Triport by default.
- Is sendBundle available over WebSocket?
- sendBundle is an HTTP JSON-RPC method.