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
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
draft-ietf-webbotauth-httpsig-protocol-00 replaced the individual Web Bot Auth draft as a working-group document.
- Agentic Resource Discovery v0.91 published
The ARD specification reached v0.91, with the manifest served at /.well-known/ard.json.
- Universal Commerce Protocol documentation released
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
The Agentic RTB Framework reached v1.0 and IAB Tech Lab reported production use by unnamed companies.
- Chrome documents a WebMCP origin trial
Chrome's developer documentation described a WebMCP origin trial running from Chrome 149.
- IAB Tech Lab releases AAMP 2.3
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
MCP published a new dated specification revision, the current version of the protocol.
- x402 Foundation becomes operational under the Linux Foundation
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
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
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
ACP published its 2026-04-17 dated specification, maintained by OpenAI, Stripe and Meta.
- Mastercard announces Verifiable Intent
Mastercard set out Verifiable Intent, a credential format for proving what a user asked an agent to buy.
- Open Semantic Interchange specifications finalised
Snowflake reported that the Open Semantic Interchange specifications had been finalised by the initiative's partners.
- Visa introduces the Trusted Agent Protocol
Visa announced the Trusted Agent Protocol, a framework for merchants to recognise and trust shopping agents.