Universal Commerce Protocol (UCP)
Open standard for agentic commerce covering discovery, checkout and post-purchase between platforms, agents and businesses.
Reference by Google, developed with Shopify, Etsy, Wayfair, Target and Walmart
Chalk Labs
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About
Use cases: ecommerce, payments-billing
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About the protocol
- Specification
- ucp.dev/
- Current version
- v2026-08-25github.com
- Maintainer
- Google, developed with Shopify, Etsy, Wayfair, Target and Walmartdevelopers.googleblog.com
- Launched
- 2026-01-11developers.googleblog.com
- Endorsed at launch by more than 20 partners, including Visa, Mastercard, Stripe, Adyen and Best Buy. developers.googleblog.com
Signals
- Stars
- 3,444
- Forks
- 480
- Open issues
- 119
- Last commit
- Oct 23, 2026 (7 days ago)
- Last release
- Aug 25, 2026 (2 months ago)
From GitHub (fetched Oct 24, 2026).
Details
Done for you
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Chalk Labs scopes, builds and runs agents for your team: the task audit, the eval harness, the integrations and the weekly ops report. Fixed scope, priced before we start.
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Chalk Labs is a two-founder AI and growth studio. We build AI agents, CRMs and MVPs for Web3 and AI companies, and have shipped 50+ product and token launches.
- launches shipped
- 50+
- launches shipped
- media placements
- 500+
- media placements
- founders on every account
- 2
- founders on every account
Press we've placed: Forbes · CoinDesk · Decrypt · Cointelegraph · The Block
Rahil Jain, Co-founder, Chalk Labs. Ex-Goldman Sachs engineer. You talk to the person who builds it.
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Cite this page
Universal Commerce Protocol (UCP). Agent Mart. https://agentmart.dev/reference/universal-commerce-protocol (last updated 2026-10-24)