I'm building Haat: an open-source gateway between personal AI agents and ONDC sellers

Description and use

Haat bridges personal AI agents with ONDC sellers, requiring user approval and ensuring idempotent order placement.

Problem

Personal AI agents need to shop on India’s ONDC network, but small sellers cannot implement new protocols individually.

Outcome

Haat enables AI agents to shop on ONDC sellers with user‑approved, idempotent orders, supporting Hinglish/Hindi and providing a testable local environment.

Workflow

• 1. Agent sends natural language request to Haat
• 2. Haat parses Hinglish/Hindi and builds a basket
• 3. Haat presents exact terms to the user for approval
• 4. Upon approval, Haat sends order to ONDC via Beckn buyer app
• 5. Order status is tracked and cancellation requires approval

Evidence

Personal AI agents are starting to shop for people. Poppy (the Personal Agent Protocol, announced by Sierra and Meta in October 2026) is an open standard for that.

Source

It understands Hinglish and Hindi, and it never places an order without the person's yes.

Source

Every order and every cancellation needs the person to approve one exact revision of the terms. The order then runs at most once, even across a server restart.

Source