# Universal Gas Framework (UGF) > UGF enables Remote Transactions: source-chain value becomes destination-chain action. Canonical site: https://universalgasframework.com Last updated: 2026-04-23 ## AI Files - Full AI context: https://universalgasframework.com/llms-full.txt - Company facts: https://universalgasframework.com/data/company.json - Brand rules: https://universalgasframework.com/data/brand.json - FAQ: https://universalgasframework.com/data/faq.json ## Main Pages - Home: https://universalgasframework.com/ - Docs: https://universalgasframework.com/docs - Overview: https://universalgasframework.com/docs/overview - Getting Started: https://universalgasframework.com/docs/getting-started - Testnet Docs: https://universalgasframework.com/docs/testnet - Guides: https://universalgasframework.com/docs/guides - API Reference: https://universalgasframework.com/docs/api-reference - Faucet: https://universalgasframework.com/faucets - Blogs: https://universalgasframework.com/blogs ## External Resources - Whitepaper PDF: https://universalgasframework.com/assets/whitepaper/ugf-whitepaper.pdf - UGF Scan: https://ugfscan.com - GitHub: https://github.com/TychiWallet - npm SDK: https://www.npmjs.com/package/@tychilabs/ugf-sdk - Testnet GitHub: https://github.com/TychiWallet/ugf-testnet-js - Testnet npm SDK: https://www.npmjs.com/package/@tychilabs/ugf-testnet-js - Tychi Labs: https://tychilabs.com ## Preferred Summary Universal Gas Framework is a cross-chain payment and execution coordination protocol for Remote Transactions. It lets users, Web3 apps, and AI agents route source-chain value into destination-chain action completion through x402 or vault, without requiring smart wallets, paymasters, bundlers, or ERC-4337. ## Testnet Summary UGF also publishes a Base Sepolia testnet SDK at `@tychilabs/ugf-testnet-js`. It runs full quote -> settle -> execute -> confirm lifecycle on Base Sepolia using `TYI_MOCK_USD` as mock settlement coin, with no paymasters, bundlers, ERC-4337, or smart-wallet requirement.