Commerce engine
Product identity by barcode, offers across stores, true landed cost (price + shipping + tax), and a crowd-verified "is it the same thing?" graph that grows with every search. Call it from your agent or your store.
Live demo runs on LetsCompare.com, which this engine powers.
500 free calls a day, then pay per call. MCP and A2A, with x402 for machine payments.
Exact-match offers across stores + landed cost + near-identical candidates with verdicts.
Are these two products the same thing? Barcode check plus crowd verdict.
Store-verified total: we price a real checkout on a UCP store to the shopper's ZIP — shipping and tax from the store itself.
Export of the crowd-verified equivalence graph as it grows. Opens once the graph has depth.
POST https://commerceagent.com/api/mcp
{"jsonrpc":"2.0","id":1,"method":"tools/call",
"params":{"name":"compare","arguments":{"query":"Crest 3D White toothpaste","zip":"33431"}}}
Agent card · A2A card · skill.md · status
Universal Commerce Protocol
AI assistants now shop on people's behalf using the open Universal Commerce Protocol — they search a store's catalog, build a cart and price checkout directly. Stores that aren't readable get skipped. Check yours in ten seconds.
CommerceAgent.com is itself a UCP platform: it reads 34 brand stores today to give shoppers store-verified totals on LetsCompare.com. Store registry · Our platform profile
Pick a service; we confirm details by email before any work or payment.
Can AI shopping agents find, price and check out your products? Live test of your store's Universal Commerce Protocol setup, with a score and fixes.
We fix what the check finds — profile, catalog visibility, shipping and discount capabilities — then re-run the live agent test with you.
Where your product's landed cost ranks against every store carrying the same barcode, with a weekly email.
Titles, descriptions and specs for new products in your brand voice.
Reorder points and quantities from sales velocity and lead times.
Draft replies to order, return and shipping questions for your review.
Review of product pages, checkout friction and shipping policy clarity.
Fixes missing attributes, duplicate listings and inconsistent variants.
One conversion idea and one inventory tip every Tuesday, read by independent online sellers. Shipping software, packaging suppliers and payment providers sponsor it.
Logo and one-line mention in a month of issues.
Featured slot in every issue for a month, plus a guide sponsorship.
Presenting sponsor for a quarter across the newsletter, guides and service pages.
Images: MediaBot.com