Addresses
Where is CRX deployed?
Sonic Testnet, chain id 14601. Every address below is live on that chain. Each row links to the block explorer — open it to read the bytecode and transactions on-chain.
Testnet only. These are testnet contracts. No production funds are at risk. Mainnet addresses do not exist yet.
| Network | Value |
|---|---|
| Chain | Sonic Testnet |
| Chain id | 14601 |
| RPC | https://rpc.testnet.soniclabs.com |
What are the deployed addresses?
The table is read live from the deployment registry — it is always current, never hardcoded in this page.
Live on Sonic Testnet · chain 14601 · block explorer
Contract Address CRX coreThe settlement engine. Every forward binds, margins, and settles here. 0xdfA9…5a3eUSDCThe cash-settlement token. Collateral and payout are denominated in it. 0x12B9…8797sUSDSThe second, yield-bearing collateral token. 0xE5e5…05d9Swap routerUSDC ↔ sUSDS at the oracle rate, no fee. 0x11Ab…1C4eCredit Support AnnexHolds posted collateral and runs the margin waterfall. 0x0bD7…bf45FaucetMints test USDC and sUSDS so a new desk can onboard. 0x7908…23CF
What does each contract do?
| Contract | Role |
|---|---|
| CRX core | the singleton vault, registry, role system, and oracle registry |
| CRX implementation | the UUPS logic the core proxy delegates to |
| NDF beacon | the upgradeable implementation every Master Agreement clone points at |
| Global CSA | the default collateral-haircut contract |
| Guarantee fund | the backstop the default waterfall draws on last |
| USDC | testnet settlement and collateral token |
| sUSDS | testnet yield-bearing collateral (IM-only, 200bps haircut) |
| Oracles | per-pair FX rate and per-token collateral price feeds |
For how these relate, see CRX Contracts (~3 min).
Next: CRX Contracts (~3 min) — the contract set and how the pieces fit together.