What is QRDX?
A blockchain whose accounts are secured by post-quantum signatures, with a spot and perpetuals exchange built into the protocol.
QRDX is a proof-of-stake blockchain designed for a world with quantum computers. Its validators sign with ML-DSA-65, the NIST post-quantum signature standard (FIPS 204, formerly CRYSTALS-Dilithium), and every account can hold a post-quantum key alongside a classic Ethereum-style one.
The chain also has a native exchange: order books, concentrated-liquidity pools and perpetual futures are part of the protocol's state, not contracts deployed on top of it. A trade is a transaction the validators execute and every node agrees on.
Testnet is live; mainnet is not yet
Everything in these docs runs on QRDX testnet. Testnet tokens have no value. Mainnet has not launched; see the roadmap.
What you can do today
QRDX Wallet
Web, iPhone and browser extension. One recovery phrase restores both your classic and post-quantum keys.
Trade
Limit orders on spot order books, swaps routed to the best venue, and perpetuals with up to 20× leverage.
Provide liquidity
Concentrated-liquidity pools for any pair of native tokens, including native QRDX.
Launch a token
A native token is a registry entry, not a contract: create one and open its market in the same block.
Explore the chain
Blocks, transactions, tokens and markets, and a public profile for your address.
Build
JSON-RPC, REST and streams, with examples that run against testnet right in the page.
How it fits together
| Piece | What it is | Where |
|---|---|---|
| QRDX node | The chain: consensus, the EVM, native tokens and the exchange engine. Serves JSON-RPC, REST and WebSocket/SSE streams. | test.qrdx.org |
| QRDX Wallet | Holds your keys and signs. Browser extension (Chrome, Firefox), web app, and an iPhone app installed from Safari. | wallet.qrdx.org |
| QRDX Trade | The trading interface for the native exchange, and a public API over it. | trade.qrdx.org |
| QRDX Explorer | Blocks, transactions, accounts, tokens and markets. | explorer.qrdx.org |
Every app reads the same node, so they always agree. The wallet signs everything; the apps never hold your keys.
Why post-quantum
Ethereum and Bitcoin accounts are secured by elliptic-curve signatures. A large enough quantum computer running Shor's algorithm could derive a private key from a public one, and every account whose public key is known (any account that has ever sent a transaction) would be exposed. QRDX's post-quantum accounts are signed with ML-DSA-65, which no known quantum algorithm breaks. Post-quantum cryptography explains what that protects, and what it does not.
Try it now
This runs in your browser against testnet. Edit it and run it again.