Sierra Releases Personal Agent Protocol (Poppy) v1.0: Live for Everyone on Meta's Muse, Automatically Enabled for Every Shopify Merchant, With More Than 100 Design Partners
On November 13, Sierra co-founders Bret Taylor and Clay Bavor announced Personal Agent Protocol (Poppy) v1.0 on the [official blog](https://sierra.ai/blog/releasing-poppy). It is now on for everyone who uses Muse, Meta's AI agent, which looks for Poppy first on every site it visits, and Shopify has enabled it for every merchant on its platform, with no extra work from the merchant. Sierra says 60 more companies have joined as design partners, bringing the total to more than 100, and that Mercury and Turkish Airlines are among those already live. The specification is at [personalagentprotocol.org](https://personalagentprotocol.org/docs/1.0/spec).

- •v1.0 is out: the spec is at Personal Agent Protocol 1.0; companies publish capabilities at
/.well-known/poppy.json, with sign-in through OAuth - •Live on Muse: Sierra says Poppy is on for everyone who uses Meta's Muse, which looks for Poppy first on every site it visits
- •Every Shopify merchant: every store now automatically publishes a Poppy file, with no extra implementation; Shopify co-authored the commerce extension, which complements Universal Commerce Protocol (UCP), already on by default; Shopify says it powers businesses in more than 175 countries
- •More than 100 design partners: Sierra says 60 more have joined; the full list is in the blog. Mercury and Turkish Airlines are among those already live; Synchrony is still exploring how to bring financing and rewards into agent-led shopping
- •Staged adoption: an official implementation kit and validator are available, and any company can implement v1.0 from the docs and start improving the Muse experience; pricing has not been published









