Polkadot is a Layer 1 blockchain that uses Nominated Proof-of-Stake to secure a relay chain connecting interoperable parachains. DOT is used for governance, staking, and bonding new parachains, with a block time of roughly 6 seconds.
Straight into the app: Swap DOT · Buy DOT · Get UCASH with DOT
Nominated Proof-of-Stake. Settlement is non-custodial, on-chain to a wallet you control. Confirmation policy: 1 block (fast), a few extra for high value.
A single U Account works across accept, swap, and buy. Pick where to start.
Take DOT in checkout alongside cards on 35 networks. White-label, non-custodial, live in minutes.
Trade DOT for any asset across the network, routed for the best price.
Get DOT with any asset you hold, one step, settled to your wallet.
Receive, hold, and settle DOT your way.
The original proof-of-work blockchain and largest cryptocurrency.
The leading smart-contract blockchain and home of ERC-20.
A fast, low-fee Bitcoin-family payments chain.
High-throughput Layer 1 for fast, low-cost apps.
Pure Proof-of-Stake Layer 1 with instant finality.
The largest US-dollar stablecoin, live on Ethereum, Tron, and BNB Chain.
Getting started takes a wallet and an address. The wallet needs to hold Polkadot and a little DOT for gas on its chain; the address is where the output lands, raw hex or a resolvable web3 name both work. From there the flow is preview-first: what leaves, what arrives, the fee, and the network cost all sit on one screen before a signature happens. Keys never leave your side at any point, and the only thing the wallet ever signs is the exact transaction you read.
Count the costs on one hand. On the platform side a flat 0.50% covers the swap, all-in, stated in the quote with no spread or routing cut behind the number. On the network side, gas in DOT, settling with about 6 sec blocks on Nominated Proof-of-Stake, shown per leg before signature. Settlement runs on-chain to your chosen address at this asset's policy, 1 block (fast), a few extra for high value, and from confirmation onward the balance answers to your keys alone, spendable, sendable, and settled with no platform anywhere in the path.
Execution runs through an instant integration, which means the number you approved is the number that happens or the transaction reverts: swaps are atomic, with no half-settled state to unwind and no exposure window between legs. If a route cannot fill at your approved bounds it fails cleanly and you re-quote, which is the failure mode you want, cheap and loud rather than silent and expensive.
One account unlocks accept, swap, buy, and the rest of the U.CASH network across 35 networks.