Land Solana transactions in the same block.
0block routes through stake-weighted QoS — leader-aware and direct — so your transaction lands in the slot it was sent, not three blocks later. Self-serve API keys, live telemetry, zero guesswork.
- Stake-weighted QoS
- Leader-aware submission
- Real-time telemetry
On-chain router · swaps across 40+ Solana venues
Every layer engineered for the fastest route to the leader.
Same-block landing
We measure a slot-delta on every transaction — the gap between the slot you sent it and the slot it landed in. A delta of 0 means it landed in the slot it was sent. That is the target, and we optimise the whole path for it.
Stake-weighted QoS routing
Your transactions travel over stake-weighted QoS connections to validators — prioritised capacity that public RPCs don't get — so they aren't dropped or de-prioritised under load.
Leader-aware submission
0block tracks the leader schedule and submits directly to the current and upcoming leaders — no waiting for gossip to carry your transaction across the network.
Real-time telemetry
A live dashboard for landing rate, slot-delta distribution, route latency and a leader map — so you can see exactly how and where your transactions land.
You can't improve what you can't see.
Landing isn't a yes/no — it's how fast. 0block reports the exact slot-delta for every transaction, so “it went through” becomes a number you can watch, chart and act on.
- Slot-delta distributionSee how many land at +0, +1, +2 …
- Landing & success rateTrack inclusion over any window
- Live leader mapWatch which validators you're hitting
| Slot-delta | Share of transactions |
|---|---|
| +0 | 82% |
| +1 | 13% |
| +2 | 3.5% |
| +3 | 1% |
| +4≥ | 0.5% |
- Ce6Tw…9xQFnow
- 9WzDX…kP2a+1
- DPjZ4…7bNm+2
- GmH1r…Q4vT+3
Representative view · your numbers are live in the dashboard
Front-runners can't sandwich what they can't see.
0block routes your transactions privately through trusted, stake-weighted validators — they never sit in the public mempool, where searchers watch pending trades to front-run and sandwich them. That keeps your orders out of sight and meaningfully reduces your exposure to those attacks.
Bracketed on both sides, your trade fills at a worse price — the classic sandwich.
No public mempool hop means no window for searchers to react to your order.
Private routing reduces exposure to mempool-based MEV — front-running and sandwiching. It isn't a guarantee against every form of MEV.
One header. That's the whole integration.
No SDK lock-in, no proprietary transaction format. Sign your transaction like you already do, then send it to 0block with your key.
- 01
Create an API key
Sign up and generate a key from the dashboard — self-serve, no sales call.
- 02
Submit with X-API-Key
POST your signed transaction with the X-API-Key header. That's the whole integration.
- 03
Land in the same block
Get back the signature and the slot-delta the moment it lands.
curl -X POST https://api.0block.io/v1/submit \
-H "X-API-Key: $ZB_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"transaction": "<base64 signed tx>",
"skipPreflight": true
}'{
"signature": "4Nd8…7Uu1",
"landedSlot": 297412580,
"slotDelta": 0,
"status": "landed"
}
- Pump.fun37%
- Meteora26%
- Orca21%
- Raydium16%
Swap across 40+ venues, landed the same way.
The 0block DEX Router finds the best route across 40+ Solana venues and settles it through the same low-latency path — so your swaps land as fast as your transactions.
Priced on volume, not surprises.
No subscriptions and no lock-in. Submission is tip-based — you pay Solana priority tips — and the DEX Router takes a simple swap fee that drops as you scale.
Self-serve API
Everything you need to start landing transactions today.
- Self-serve API keys
- Stake-weighted QoS routing
- Leader-aware submission
- Real-time telemetry dashboard
- You pay Solana priority tips — no subscription
DEX Router
Best-execution routing across 40+ Solana venues.
- Best execution across 40+ venues
- 1% default swap fee
- As low as 0.01% for high volume
- Same low-latency settlement path
Dedicated / Tenant
Dedicated programs for high-volume developers and DEXes.
- Dedicated tenant programs
- Priority capacity & support
- Volume-based router pricing
- Direct line to the team
Start landing in zero blocks.
Spin up a key, send your first transaction, and watch it land in the slot you sent it.