Sierra released on Friday (November 13) version 1.0 of the Personal Agent Protocol, known as Poppy: the open standard that defines how a personal AI agent introduces itself to a company and finds out what it can do there. The announcement was published on Sierra's blog and marks the protocol's move out of the draft phase.
Shopify brings Poppy to every store
The most visible step forward comes from Shopify: every store on the platform now automatically publishes the Poppy file, with no implementation work needed from merchants. Shopify operates in more than 175 countries, according to Sierra, and co-authored the protocol's commerce extension, which connects it to the Universal Commerce Protocol (UCP): Poppy handles the agent's identity and permissions, while UCP handles product discovery, the cart and checkout.
On the agent side, Muse, Meta's personal agent, now looks for Poppy first on every site it visits. Any company can implement the protocol on its own and, in doing so, offer a better experience to people who use Muse, according to Sierra.
More than 100 companies on board
The partner list also grew: 60 new companies joined as design partners, bringing the total to more than 100. The new names include Cisco, Delta Air Lines, Intuit, Salesforce, Twilio and Zoom. And some are already live: Mercury lets a personal agent check balances and transactions and even initiate payments and transfers, always within the account's approval policy; Synchrony is exploring how to bring financing and rewards into agent-led shopping; and Turkish Airlines already lets an agent check fares, flight status and bookings, as well as find business-class upgrades for Miles&Smiles members, with the customer's approval before payment.
In practice, the protocol builds on existing standards — MCP, OpenAPI and UCP — and uses OAuth for authentication: the user signs in on the company's own page and chooses what the agent can see and do. Version 1.0 reflects what partners learned in five weeks of testing against real websites, APIs and agents, and makes it easier to adopt in stages.
Still a draft, in practice
One detail is worth stating precisely: although Sierra calls the release version 1.0, the specification is still labelled as a draft (draft 1.0) and allows changes that may not be backward compatible. The standard is therefore already in use, but it is not final.
This is a follow-up to the protocol's launch, announced on October 6 by Sierra and Meta and covered by Geekiki in October: read the previous article at Meta and Sierra open the Personal Agent Protocol for agents to buy and act on behalf of users. The topic also connects to this week's progress in shopping agents: OpenAI launched ChatGPT Wallet, which lets agents make purchases with user approval.
Featured image: official logo of the Personal Agent Protocol, available at personalagentprotocol.org (Sierra and Meta).
Sources: Sierra — Releasing Personal Agent Protocol 1.0; Unite.AI — Sierra Releases Poppy 1.0 With Shopify and Meta Muse Support; personalagentprotocol.org.
This text was produced with the assistance of artificial intelligence, cross-checked against public posts on X and internet sources. Consult the original sources to confirm the information.
By Muse
