# Contract addresses *Core and utility contract references* Use this page as a quick reference for deployed contracts on Radius Testnet and Radius Network (mainnet). All addresses are checksummed and copy-paste ready. ## Core contract ### SBC token contract The SBC contract is the stablecoin used for transfers and gas-fee conversion behavior on Radius. * **Contract address:** `0x33ad9e4BD16B69B5BFdED37D8B5D9fF9aba014Fb` ## Utility contracts These utility contracts are commonly used across tooling and app integrations. ### Testnet | Contract | Address | Why you use it | | ---------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------- | ------------------------------------------------------------------------------------------------- | | [Arachnid Create2 Factory (deterministic deployment proxy repository)](https://github.com/Arachnid/deterministic-deployment-proxy) | `0x4e59b44847b379578588920cA78FbF26c0B4956C` | Deploy contracts to deterministic addresses with CREATE2. | | [CreateX deployment framework repository](https://github.com/pcaversaccio/createx) | `0xba5Ed099633D3B313e4D5F7bdc1305d3c28ba5Ed` | Use advanced CREATE/CREATE2/CREATE3 deployment patterns. | | [Multicall3 repository](https://github.com/mds1/multicall) | `0xcA11bde05977b3631167028862bE2a173976CA11` | Batch multiple read calls into one RPC request. | | [Uniswap Permit2 repository](https://github.com/Uniswap/permit2) | `0x000000000022D473030F116dDEE9F6B43aC78BA3` | Support signature-based approvals and transfer flows. Required for Permit2-based x402 settlement. | ### Mainnet | Contract | Address | Why you use it | | ---------------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------- | ------------------------------------------------------------------------------------------------- | | [Arachnid Create2 Factory (deterministic deployment proxy repository)](https://github.com/Arachnid/deterministic-deployment-proxy) | `0x4e59b44847b379578588920cA78FbF26c0B4956C` | Deploy contracts to deterministic addresses with CREATE2. | | [Uniswap Permit2 repository](https://github.com/Uniswap/permit2) | `0x000000000022D473030F116dDEE9F6B43aC78BA3` | Support signature-based approvals and transfer flows. Required for Permit2-based x402 settlement. | | [Multicall3 repository](https://github.com/mds1/multicall) | `0xcA11bde05977b3631167028862bE2a173976CA11` | Batch multiple read calls into one RPC request. | | [CreateX deployment framework repository](https://github.com/pcaversaccio/createx) | `0xba5Ed099633D3B313e4D5F7bdc1305d3c28ba5Ed` | Use advanced CREATE/CREATE2/CREATE3 deployment patterns. | ## Safe contracts The Safe singleton factory is Safe's presigned deterministic deployer. Safe contracts deployed through it land at the same addresses they use on other EVM chains, so Safe\{Wallet} and the Safe Protocol Kit resolve them without custom configuration. The factory is deployed to the same address on Radius Testnet and Radius Network. | Contract | Address | Why you use it | | ----------------------------------------------------------------------------- | -------------------------------------------- | --------------------------------------------------------------- | | [Safe singleton factory](https://github.com/safe-fndn/safe-singleton-factory) | `0x914d7Fec6aaC8cd542e72Bca78B30650d45643d7` | Deploy Safe contracts at their canonical cross-chain addresses. | Deployment artifacts for both networks live in the safe-singleton-factory repository, under [`artifacts/72344`](https://github.com/safe-fndn/safe-singleton-factory/blob/main/artifacts/72344/deployment.json) for Radius Testnet and [`artifacts/723487`](https://github.com/safe-fndn/safe-singleton-factory/blob/main/artifacts/723487/deployment.json) for Radius Network. ## x402 contracts These contracts are used by x402 facilitators for Permit2-based payment settlement. Both are deployed to the same deterministic address on all EVM chains via CREATE2. | Contract | Address | Why you use it | | ----------------------------------------------------------------------------------------------------------- | -------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | [x402ExactPermit2Proxy](https://github.com/coinbase/x402/blob/main/specs/schemes/exact/scheme_exact_evm.md) | `0x402085c248EeA27D92E8b30b2C58ed07f9E20001` | Canonical spender for Permit2-based x402 settlement. Payers sign Permit2 transfers to this address. The proxy enforces that funds go only to the merchant (`payTo`) address. | | [Uniswap Permit2](https://github.com/Uniswap/permit2) | `0x000000000022D473030F116dDEE9F6B43aC78BA3` | Signature-based token approvals and transfers. Payers approve this contract once to enable Permit2 x402 flows. | ## Accessibility and verification notes * Use the **contract name** column to understand purpose before copying an address. * Use the **Why you use it** column for quick context in screen-reader and scan-first workflows. * Verify target network before deployment or scripting. * Prefer checksummed addresses in config files and deployment artifacts. ## Related pages * [Network and RPC](/reference/network.md) * [JSON-RPC API](/reference/json-rpc/methods.md) * [Fees](/reference/fees.md)