# News

Dated changes to the standards on this map, newest first. Every item links to the source it was taken from.

- [WebMCP published as a Draft Community Group Report](https://webmachinelearning.github.io/webmcp/) 2026-09-04 · [WebMCP](/protocols/webmcp/)

 The W3C Web Machine Learning Community Group published a 4 September 2026 draft of WebMCP, the browser API for pages to expose tools to agents.

- [IETF webbotauth working group adopts the HTTP signature draft](https://datatracker.ietf.org/doc/draft-ietf-webbotauth-httpsig-protocol/) 2026-09-01 · [Web Bot Auth HTTP Message Signatures](/protocols/webbotauth/), [HTTP Message Signatures](/protocols/http-message-signatures/)

 draft-ietf-webbotauth-httpsig-protocol-00 replaced the individual Web Bot Auth draft as a working-group document.

- [Agentic Resource Discovery v0.91 published](https://raw.githubusercontent.com/ards-project/ard-spec/main/spec/ard.md) 2026-08-26 · [Agentic Resource Discovery](/protocols/ard/)

 The ARD specification reached v0.91, with the manifest served at /.well-known/ard.json.

- [Universal Commerce Protocol documentation released](https://ucp.dev/documentation/core-concepts/) 2026-08-25 · [Universal Commerce Protocol](/protocols/ucp/)

 The UCP site published its core-concepts documentation, dated 25 August 2026, with Shopping, Lodging and Food tracks.

- [IAB Tech Lab publishes ARTF v1.0](https://iabtechlab.com/standards/artf/) 2026-08-12 · [Agentic Real Time Framework](/protocols/artf/)

 The Agentic RTB Framework reached v1.0 and IAB Tech Lab reported production use by unnamed companies.

- [Chrome documents a WebMCP origin trial](https://developer.chrome.com/docs/ai/webmcp) 2026-08-07 · [WebMCP](/protocols/webmcp/)

 Chrome's developer documentation described a WebMCP origin trial running from Chrome 149.

- [IAB Tech Lab releases AAMP 2.3](https://iabtechlab.com/press-releases/iab-tech-lab-releases-aamp-2-3-bringing-enterprise-grade-infrastructure-and-privacy-diligence-to-agentic-advertising/) 2026-07-30 · [Agentic Advertising Management Protocols](/protocols/aamp/)

 AAMP 2.3 added infrastructure and privacy-diligence components contributed by AWS, HyperMindZ, Mixpeek, SafeGuard Privacy and Adform.

- [Model Context Protocol 2026-07-28 specification revision](https://modelcontextprotocol.io/specification/2026-07-28/index) 2026-07-28 · [Model Context Protocol](/protocols/mcp/)

 MCP published a new dated specification revision, the current version of the protocol.

- [x402 Foundation becomes operational under the Linux Foundation](https://x402.org/announcement) 2026-07-14 · [x402](/protocols/x402/)

 The Linux Foundation announced the operational launch of the x402 Foundation to standardise internet-native payments for agents.

- [First Web Bot Auth HTTP signature draft published at the IETF](https://datatracker.ietf.org/doc/html/draft-meunier-webbotauth-httpsig-protocol-00) 2026-06-26 · [Web Bot Auth HTTP Message Signatures](/protocols/webbotauth/), [HTTP Message Signatures](/protocols/http-message-signatures/)

 draft-meunier-webbotauth-httpsig-protocol-00 set out how a bot signs requests with RFC 9421 HTTP message signatures.

- [Google announces the Agentic Resource Discovery specification](https://developers.googleblog.com/en/announcing-the-agentic-resource-discovery-specification/) 2026-06-17 · [Agentic Resource Discovery](/protocols/ard/)

 Google's developer blog announced ARD, a well-known manifest listing the resources a site offers agents.

- [Agentic Commerce Protocol dated specification 2026-04-17](https://github.com/agentic-commerce-protocol/agentic-commerce-protocol) 2026-04-17 · [Agentic Commerce Protocol](/protocols/agentic-commerce-protocol/)

 ACP published its 2026-04-17 dated specification, maintained by OpenAI, Stripe and Meta.

- [Mastercard announces Verifiable Intent](https://www.mastercard.com/global/en/news-and-trends/stories/2026/verifiable-intent.html) 2026-03-05 · [Verifiable Intent](/protocols/vi/)

 Mastercard set out Verifiable Intent, a credential format for proving what a user asked an agent to buy.

- [Open Semantic Interchange specifications finalised](https://www.snowflake.com/en/blog/open-semantic-interchanges-specs-finalized/) 2026-01-27 · [Apache Ossie (formerly Open Semantic Interchange)](/protocols/osi/)

 Snowflake reported that the Open Semantic Interchange specifications had been finalised by the initiative's partners.

- [Visa introduces the Trusted Agent Protocol](https://investor.visa.com/news/news-details/2025/Visa-Introduces-Trusted-Agent-Protocol-An-Ecosystem-Led-Framework-for-AI-Commerce/default.aspx) 2025-10-14 · [Visa Trusted Agent Protocol](/protocols/tap/)

 Visa announced the Trusted Agent Protocol, a framework for merchants to recognise and trust shopping agents.

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