What we tested
Probed live on 28 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 28 Sep 2026. 13 tools, served from boltring.myshopify.com — the standard set for sites on shopify.
get_checkoutcreate_checkoutupdate_checkoutcomplete_checkoutcancel_checkoutget_cartcreate_cartupdate_cartcancel_cartget_ordersearch_cataloglookup_catalogget_product
Context
204 sites in the index share the category payments. 16 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 key actions 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
GSC x402GSC x402 is an open internet machine payment standard operating on Base mainnet with USDC, providing instant machine payments with signed receipts, serving AI agents and the AI Knowledge Graph across 50 markets.
payments Documentación QuentliDocumentation for Quentli, a Latin American payment platform offering APIs for payment collection, recurring billing, invoicing, webhook handling, and customer/payment data synchronization.
payments WPSubscriptionWordPress plugin adding subscription billing to WooCommerce with recurring payments, split payments, free trials, automatic renewals, and subscription lifecycle management. Supports Stripe, PayPal, Paddle, Razorpay, and Mollie. Pricing from $89/year.
payments ArmoryDocumentation and tools for implementing x402 v2 payment flows, building payment-protected APIs, and creating wallet-based API clients, including integrations with Bun, Elysia, Express, Hono, Next.js, and Ethereum libraries.
payments BleepayBleepay provides a payment ecosystem for E-commerce and Web3, enabling crypto payments with features like 6-digit voucher codes, multi-currency transactions, smart contract interactions, and webhook-based settlement tracking.
payments Hellgate Cloud PlatformAPI platform for building payment systems, tokenization, fraud detection, payment processor connectivity, and payment flow orchestration, with SDKs and OAuth2 authentication.
payments Nomba DevelopersNomba Developers provides Nigerian fintech APIs for payment integrations including online payments via checkout or virtual accounts, transfers, payouts, recurring billing with direct debits, bill payments, and airtime vending.
payments NovacNovac Payment APIs for integrating payment processing, accepting payments, sending payouts, managing refunds, webhooks, virtual accounts, and recurring billing.
payments 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 →