What we tested
Probed live on 27 Sep 2026 against rubric v1.2. 2 of 5 checks passed. 2 unknown.
PROBE-VERIFIEDtier 2 of 3
What its MCP server offers
We connected, ran tools/list, and recorded what came back on 27 Sep 2026. 13 tools, served from mainelife.myshopify.com — the standard set for sites on shopify.
get_checkoutcreate_checkoutupdate_checkoutcomplete_checkoutcancel_checkoutget_cartcreate_cartupdate_cartcancel_cartget_ordersearch_cataloglookup_catalogget_product
What an agent could do here
Read from the page’s own content, with the wording each was drawn from. Inference is kept separate from tested facts — an agent completing the action is tier 3.
UNVERIFIED
buy“”https://mainelife.myshopify.com/api/ucp/mcp
Context
174 sites in the index share the category deals and discounts. 74 transactional sites share it.
How we grade
Three tiers. Every listing shows which one it has reached, and when. The rubric.
tier 1Declared
The site says agents are welcome in its robots.txt. A permission, not a capability.
tier 2Probe-verified
We fetched the site and tested each signal ourselves. Dated, repeatable, re-checked on a schedule.
tier 3Behaviourally verified
An agent completed the action end to end — booked, bought, submitted — and it worked.
Own this site?
1 check did not pass when we last looked: API catalog. Each is a small, specific fix; the rubric says exactly what we look for.
Behavioural verification — an agent completing your booking, purchase or contact flow end to end, with the date published here — opens to a small founding cohort first. Leave an email to be in it.
Related verified sites
RefunderCashback platform where members earn real money back on purchases made online and in physical stores, serving Sweden with SEK currency.
deals and discounts RefunderCashback platform where members earn real money back on purchases made online and in physical stores in Sweden, supporting over 1,300 stores with BankID and Swish for secure transactions.
deals and discounts RefunderPolish cashback platform where members earn real money back on purchases made online and in physical stores through partner stores and live campaigns.
deals and discounts value.usVerified, timestamped retail intelligence for thousands of US online retailers including signup deals, live sales, free-shipping thresholds, return policies, price-match policies, gift cards, and student/military discounts with a proprietary VUS data-confidence score.
deals and discounts דילי (Deali)Israeli Hebrew-language deal aggregator for AliExpress, offering curated electronics, gadgets, fashion, home & garden, sports, toys, beauty, and automotive deals with prices in ILS and free shipping to Israel.
deals and discounts Calgary Flames 5050Online 50|50 raffle supporting southern Alberta communities, operated by Calgary Flames Foundation, offering chances to win half the jackpot via https://5050flames.com.
deals and discounts Calgary Hitmen 50/50 Presented By RE/MAXOnline store for Calgary Hitmen 50|50 raffle supporting southern Alberta communities, offering raffle tickets with a chance to win 50% of the jackpot.
deals and discounts Andrew’s FreebiesAn open, evidence-backed index of U.S. free trials, cash back, coupons, bonuses, rebates, credits, rewards, and conditional benefits for people and AI agents.
deals and discounts Record generated from a live database query. Method: about the index.
How we found this site: probe discovery. This site didn’t declare agent access — we found it by checking the open web. Everything above was tested the same way, against the same rubric, on the date shown. How we choose what to check, and how to opt out →