[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"project-72372":3},{"id":4,"name":5,"fullName":6,"owner":7,"repo":5,"description":8,"homepage":9,"htmlUrl":10,"language":11,"languages":10,"totalLinesOfCode":10,"stars":12,"forks":13,"watchers":14,"openIssues":15,"contributorsCount":16,"subscribersCount":16,"size":16,"stars1d":17,"stars7d":18,"stars30d":19,"stars90d":16,"forks30d":16,"starsTrendScore":20,"compositeScore":21,"rankGlobal":10,"rankLanguage":10,"license":22,"archived":23,"fork":23,"defaultBranch":24,"hasWiki":23,"hasPages":25,"topics":26,"createdAt":10,"pushedAt":10,"updatedAt":27,"readmeContent":28,"aiSummary":29,"trendingCount":16,"starSnapshotCount":16,"syncStatus":30,"lastSyncTime":31,"discoverSource":32},72372,"ucp","Universal-Commerce-Protocol\u002Fucp","Universal-Commerce-Protocol","Specification and documentation for the Universal Commerce Protocol (UCP)","https:\u002F\u002Fucp.dev",null,"Python",3098,407,76,61,0,9,30,154,27,29.83,"Apache License 2.0",false,"main",true,[],"2026-06-12 02:03:02","\u003C!--\n   Copyright 2026 UCP Authors\n\n   Licensed under the Apache License, Version 2.0 (the \"License\");\n   you may not use this file except in compliance with the License.\n   You may obtain a copy of the License at\n\n       http:\u002F\u002Fwww.apache.org\u002Flicenses\u002FLICENSE-2.0\n\n   Unless required by applicable law or agreed to in writing, software\n   distributed under the License is distributed on an \"AS IS\" BASIS,\n   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n   See the License for the specific language governing permissions and\n   limitations under the License.\n-->\n\n\u003C!-- markdownlint-disable-file MD041 -->\n\n\u003Cp align=\"center\">\n  \u003Ch1 align=\"center\">Universal Commerce Protocol (UCP)\u003C\u002Fh1>\n\u003C\u002Fp>\n\n\u003Cp align=\"center\">\n  \u003Cb>An open standard enabling interoperability between various commerce\n   entities to facilitate seamless commerce integrations.\u003C\u002Fb>\n\u003C\u002Fp>\n\n\u003Cp align=\"center\">\n  \u003Ca href=\"https:\u002F\u002Fucp.dev\">Documentation\u003C\u002Fa> |\n  \u003Ca href=\"https:\u002F\u002Fucp.dev\u002Fspecification\u002Foverview\">Specification\u003C\u002Fa> |\n  \u003Ca href=\"https:\u002F\u002Fgithub.com\u002FUniversal-Commerce-Protocol\u002Fucp\u002Fdiscussions\">Discussions\u003C\u002Fa>\n\u003C\u002Fp>\n\n## Overview\n\nThe Universal Commerce Protocol (UCP) addresses a fragmented commerce landscape\nby providing a standardized common language and functional primitives. It\nenables platforms (like AI agents and apps), businesses, Payment Service\nProviders (PSPs), and Credential Providers (CPs) to communicate effectively,\nensuring secure and consistent commerce experiences across the web.\n\nWith UCP, businesses can:\n\n* **Declare** supported capabilities to enable autonomous discovery by\n    platforms.\n* **Facilitate** secure checkout sessions, with or without human intervention.\n* **Offer** personalized shopping experiences through standardized data\n    exchange.\n\n## Why UCP?\n\nAs commerce becomes increasingly agentic and distributed, the ability for\ndifferent systems to interoperate without custom, one-off integrations is vital.\nUCP aims to:\n\n* **Standardize Interaction:** Provide a uniform way for platforms to interact\n    with businesses, regardless of the underlying backend.\n* **Modularize Commerce:** Breakdown commerce into distinct **Capabilities**\n    (e.g., Checkout, Order) and **Extensions** (e.g., Discounts,\n    Fulfillment), allowing for flexible implementation.\n* **Enable Agentic Commerce:** Designed from the ground up to support AI\n    agents acting on behalf of users to discover products, fill carts, and\n    complete purchases securely.\n* **Enhance Security:** Support for advanced security patterns like AP2\n    mandates and verifiable credentials.\n\n### Key Features\n\n* **Composable Architecture:** UCP defines **Capabilities** (such as\n    \"Checkout\" or \"Identity Linking\") that businesses implement to enable easy\n    integration. On top of that, specific **Extensions** can be added to enhance\n    the consumer experience without bloating the capability definitions.\n* **Dynamic Discovery:** Businesses declare their supported Capabilities in a\n    standardized profile, allowing platforms to autonomously discover and\n    configure themselves.\n* **Transport Agnostic:** The protocol is designed to work across various\n    transports. Businesses can offer Capabilities via REST APIs, MCP (Model\n    Context Protocol), or A2A, depending on their infrastructure.\n* **Built on Standards:** UCP leverages existing open standards for payments,\n    identity, and security wherever applicable, rather than reinventing the\n    wheel.\n* **Developer Friendly:** A comprehensive set of SDKs and libraries\n    facilitates rapid development and integration.\n\n## Key Capabilities\n\nThe initial release focuses on the essential primitives for transacting:\n\n* **Checkout:** Facilitates checkout sessions including cart management and\n    tax calculation, supporting flows with or without human intervention.\n* **Identity Linking:** Enables platforms to obtain authorization to perform\n    actions on a user's behalf via OAuth 2.0.\n* **Order:** Webhook-based updates for order lifecycle events (shipped,\n    delivered, returned).\n* **Payment Token Exchange:** Protocols for PSPs and Credential Providers to\n    securely exchange payment tokens and credentials.\n\n## Getting Started\n\n* 📚 **Explore the Documentation:** Visit [ucp.dev](https:\u002F\u002Fucp.dev) for a\n    complete overview, the full protocol specification, tutorials, and guides.\n* 🎬 **Review our\n    [samples](https:\u002F\u002Fgithub.com\u002FUniversal-Commerce-Protocol\u002Fsamples)** for\n    implementation examples.\n* 🛠️ **Use our\n    [SDKs](https:\u002F\u002Fgithub.com\u002Forgs\u002FUniversal-Commerce-Protocol\u002Frepositories)**\n    to start building your own integrations.\n* 📝 **Check conformance** with our [conformance tests](https:\u002F\u002Fgithub.com\u002FUniversal-Commerce-Protocol\u002Fconformance).\n\n## Contributing\n\nWe welcome community contributions to enhance and evolve UCP.\n\n* **Questions & Discussions:** Join our [GitHub\n    Discussions](https:\u002F\u002Fgithub.com\u002FUniversal-Commerce-Protocol\u002Fucp\u002Fdiscussions).\n* **Issues & Feedback:** Report issues or suggest improvements via GitHub\n    Issues.\n* **Contribution Guide:** See our [CONTRIBUTING.md](https:\u002F\u002Fgithub.com\u002FUniversal-Commerce-Protocol\u002F.github\u002Fblob\u002Fmain\u002FCONTRIBUTING.md)\n    for details on how to contribute.\n\n## What's Next\n\nTake a look at [our roadmap on ucp.dev](https:\u002F\u002Fucp.dev\u002Fdocumentation\u002Froadmap\u002F).\nFuture enhancements include:\n\n* **New Verticals:** Applications beyond Shopping (e.g., Travel, Services).\n* **Loyalty:** Standardized management of loyalty programs and rewards.\n* **Personalization:** Enhanced signals for personalized product discovery.\n\n## About\n\nUCP is an open-source project under the [Apache License 2.0](LICENSE) and is\nopen to contributions from the community.\n","Universal Commerce Protocol (UCP) 是一个开放标准，旨在促进不同商业实体之间的互操作性，以实现无缝的商务集成。其核心功能包括声明支持的能力、促进安全结账会话以及通过标准化数据交换提供个性化购物体验。技术上，UCP 采用模块化设计，将商务活动分解为不同的能力（如结账、订单）和扩展（如折扣、履行），并通过高级安全模式支持AI代理代表用户进行安全交易。该协议特别适合需要跨平台或系统间高效、安全通信的电子商务场景，能够显著降低定制集成的成本与复杂度。",2,"2026-06-11 03:41:32","high_star"]