Guide
What is agentic commerce? A merchant's guide for 2026
How AI agents shop on a customer's behalf, where they can buy today, why they fail at most online stores, and what a merchant should fix first.
October 19, 2026 · 9 min read
Blog
Selling to AI shopping agents. What works, what breaks, and what we measured.
Every post is dated, sourced, and re-checked when the protocols move. Where we make a claim about stores, it comes from our own scans.
Why agents fail at your store
The bot rules, missing data and blocked checkouts that turn an agent away, and how to fix each.
Technical explainer
Web Bot Auth explained: how signed AI agents prove identity
How AI agents sign HTTP requests with RFC 9421, how a site verifies the signature step by step, and what a valid signature does and does not prove.
October 19, 2026 · 9 min read
How-to
Product data AI agents can read: Schema.org fixes that work
What complete Product and Offer markup looks like, the mistakes that hide products from AI shopping agents, and how to test the fix across a catalogue.
October 19, 2026 · 8 min read
Reference
robots.txt for AI agents: which bots to allow and block
Search crawlers, shopping assistants and training bots need different rules. A robots.txt generator for stores, and where robots.txt stops working.
October 19, 2026 · 8 min read
Evidence review
Does llms.txt work? What the evidence says for stores
What 2026's studies of llms.txt show about AI crawlers, citations and Google, how good the published files are, and whether a store should bother.
October 19, 2026 · 7 min read
Checklist
Agentic commerce readiness checklist for 2026
Thirty checks in seven groups, ordered by impact, to make an online store work for AI shopping agents. Interactive, with a link to the fix for each.
October 19, 2026 · 7 min read
Guide
Why AI shopping agents get a 403 at your checkout
Bot management built to stop scrapers also stops AI shopping agents at checkout. Why it happens, how to test for it, and the fix for each major bot manager.
October 18, 2026 · 12 min read
Agentic commerce basics
What AI shopping agents are, which protocols they speak, and where they buy today.
Comparison
UCP, ACP, AP2, MCP and A2A: which ones your store needs
The agentic commerce protocols are layers, not rivals. What each one does, who runs it, and which a merchant needs to act on, as of October 2026.
October 19, 2026 · 9 min read
News analysis
ChatGPT shopping after Instant Checkout: what to do now
OpenAI scaled back in-chat checkout in March 2026. How shopping in ChatGPT works now, how products get in, and what merchants should change.
October 19, 2026 · 9 min read
How-to
Google agentic checkout: how to sell in AI Mode and Gemini
How to make products eligible for Google's agentic checkout through Merchant Center and UCP, which items are excluded, and what to check before launch.
October 19, 2026 · 9 min read
Reference
Agentic commerce glossary: the terms in plain English
Plain-English definitions of UCP, ACP, AP2, MCP, Web Bot Auth, signed agents, merchant of record and more, with links to the guides that go deeper.
October 19, 2026 · 9 min read
Platform guide
Shopify agentic commerce: a merchant's guide for 2026
What Shopify does for AI shopping agents, from agentic storefronts to WebMCP checkout, and the robots.txt, theme and checkout details merchants must fix.
October 19, 2026 · 8 min read
Engineering and revenue
Testing agents in CI, measuring agent traffic, and pricing what a failure costs.
Open source
acurl: see your site the way AI agents see it
acurl is a free, open-source CLI that fetches a page as Chrome and 21 AI agents, and shows which were blocked, challenged, cloaked or shown another price.
October 19, 2026 · 9 min read
Tutorial
How to test your store with AI shopping agents in CI
A step-by-step guide to running AI agent journeys against staging on every pull request with GitHub Actions, and failing the build on a regression.
October 19, 2026 · 8 min read
Explainer and calculator
How much revenue do you lose when AI agents can't buy?
Estimate the monthly revenue at risk when AI shopping agents fail on your store, without double counting, using a calculator built on tragent's model.
October 19, 2026 · 7 min read
How-to
How to measure AI agent traffic on your online store
Why analytics misses most AI agent traffic, where to see it instead, how to tell real agents from impostors, and how to build an agent purchase funnel.
October 19, 2026 · 7 min read
Comparison
Agent readiness tools compared: tragent vs the alternatives
Shopify Commerce Readiness, Lighthouse, Sichta, AgentReady, ucptools.dev, Profound and tragent compared: what each checks, costs, and when to use it.
October 19, 2026 · 11 min read
Buyer's guide
How to choose an AI agent readiness or testing tool
The questions to ask any agent readiness vendor: does it test like an agent, signed and unsigned, safely, in CI, with evidence? Plus a three-question picker.
October 19, 2026 · 8 min read
Product
Monitoring AI shopping agents in production with tragent
How tragent watches AI agents on a live store: scheduled checks, edge traffic classified by agent family, per-family funnels, and alerts that fire on a trend.
October 19, 2026 · 9 min read