The capability pipeline
Two capabilities do the heavy lifting, and they work as a pair:UCP
Search products, read catalogs, and open quotes across participating Shopify merchants via the
Universal Commerce Protocol.
Browser Harness
Prava’s checkout automation confirms the true total from a UCP quote and completes the real merchant
checkout.
Who this is for
AI applications and agents that want to find and buy on a user’s behalf rather than only process a payment. These same capabilities power Prava Pay’s agentic shopping (prava shop search → product → quote → checkout); this section explains what’s behind those commands.
Whichever surface you use, the card is always collected on Prava’s secure surface and turned into a
one-time, merchant-scoped credential; the AI application never handles a raw card.
How the pieces fit
1
Discover with UCP
Search across participating Shopify merchants and read product/variant details. See
UCP.
2
Quote the real price
UCP opens a checkout for an initial price; the Browser Harness
reconciles it against the live checkout so the amount is correct before anyone commits.
3
Complete checkout
The Browser Harness fills the checkout, confirms the final total, pays with the one-time token, and
returns a verifiable order.