MEV redistribution on Solana

MEV belongs to the trader, not the bot.

FlowBack runs a 200 ms sealed-bid auction before every swap lands on Solana. Searchers compete to backrun you; 90% of the winning bid is rebated as SOL in the same block and same Jupiter routed output, plus cashback.

Lamports returned · all time

128,471,284lamports

Auction window

200ms

Rebate share

90%

flowback / livestreaming

lamports returned12,470,000

The problem

Every day, money is siphoned from Solana traders by bots they can't see.

MEV isn't an abstraction. It's the difference between the quote you saw and the price you got, skimmed by searchers, routed through private lanes, and paid back to no one.

MEV extracted on Solana / 30d

$0.0M

Aggregate value captured by searchers across major Solana DEX volume, trailing 30 days.

Median sandwich loss / trade

0.00%

On sandwich-affected swaps above $1k. Peaks above 1.1% on low-liquidity pairs.

Returned to users today

0SOL

Existing tooling captures MEV for searchers and builders. Users see none of it.

How it works

Four steps. Roughly 400 milliseconds. Every swap.

01 / STEP~50ms

Sign intent

One signature on your Jupiter-routed swap. We forward the transaction to the FlowBack relayer — nothing leaks to the public mempool.

ed25519 · versioned tx

02 / STEP200ms

Sealed-bid auction

Searchers bid for exclusive backrun rights. Bids stay sealed until the window closes; honest bidders price at their true expected profit.

fixed window · highest bid wins

03 / STEP~150ms

Bundle lands

Your swap and the winning backrun ship as one Jito bundle with jitodontfront. Nothing can land before yours. Same execution as going direct.

jito bundle · slot +1

04 / STEPsame block

Cashback on-chain

90% of the winning bid is transferred to your wallet by the rebate program in the same block. Visible before you leave the page.

on-chain · program-signed

For searchers

Bid once. Win the whole backrun.

A private, sealed-bid market for Solana backrun rights. No mempool racing, no priority-fee wars, no sniping. Price your bid at what the opportunity is worth — the second-price mechanic keeps it honest.

Exclusive backrun rights on every winning tradeno racing, no reverts
Sealed bids, second-price settlementhonest pricing by construction
Post-trade proofs for every fillauditable by bidders and users

Read searcher docs

Auction window · 200ms

3vYT…kL8e0.0041 SOL

A1pX…m9Wq0.0034 SOL

7bNh…cR5z0.0029 SOL

dG4s…qN2m0.0026 SOL

9kF8…ePQ20.0018 SOLwin

slot 287,418,200settled · 90% to user

Comparison

The same swap, three different outcomes.

	FlowBack	Jupiter direct	Sandwich outcome
MEV returned to user	90% of bid	0%	—
Sandwich protection	jitodontfront	Best-effort	None
Execution routing	Jupiter v6	Jupiter v6	Degraded
Additional gas cost	0 lamports	0 lamports	Higher fees
Transactions to sign	1	1	1
Settlement time	~400ms	~400ms	~400ms · worse price

Built on

Standing on Solana's shoulders.

FAQs

Yes. You sign the exact same Jupiter-routed transaction you would sign going direct. FlowBack never custodies your funds. The rebate program is an on-chain Anchor program — audited, verifiable. If our relayer goes down, your wallet falls back to a normal Jupiter submission.

Your swap lands exactly as it would have on Jupiter. No bid means no rebate, but no penalty either — you never pay anything for using FlowBack.

No. The auction runs in parallel with transaction preparation. If it times out (200ms hard cap), the bundle ships without a backrun. The user-facing path is identical either way.

No. We use Jupiter v6 routing unchanged. The cashback is pure upside on top of the same execution quality you’d get from the Jupiter frontend. Same input, same output, plus a rebate.

No approvals, no staking, no token. You sign each swap the same way you do today. There is no FlowBack token — we're a protocol, funded by a small sliver (10%) of the winning bid.