Interactions between personal AI assistants and corporate web services are gaining a standardized foundation. On November 13, 2026, Sierra announced version 1.0 of the open Personal Agent Protocol (Poppy), built atop OAuth, MCP, and OpenAPI.
The specification enables businesses to authenticate incoming agents, verify permissions, and enforce strict transactional guardrails on behalf of users. According to Sierra, over 100 partners have joined, Shopify has enabled Poppy across all merchants, and Meta’s Muse agent now automatically detects protocol support across the web.
Sources: Sierra Blog | The Next Web
Unified Bot API: Sierra Releases Open Poppy 1.0 Protocol Backed by Shopify and Meta
