SentryKit pricing — simple and flat, based on your storefronts.

No limits — monitor 50 ASINs or 50,000, at any order volume, for the same price. Your plan is based only on the storefronts you connect, so your bill only changes if you add a storefront.

A storefront is one Amazon Seller Central account. A single account can sell across many marketplaces (US, UK, Germany, etc.) — those are all included under one storefront at no extra cost. You only use more than one storefront if you run separate Seller Central logins for different regions, brands, or clients.

Almost certainly not. Amazon splits the world into regional accounts (North America, Europe, etc.), so a single global business typically runs 2–3 storefronts. Starter covers 2 and Pro covers 5 — enough for nearly every single-business seller, regardless of how many countries you sell in. You're never charged just for selling across regions.

Storefronts 6–15 are $19 each, and the per-storefront rate drops in volume bands as you grow (16–30: $14, 31–60: $10, 61+: $7) — so the more storefronts you add, the less each one costs. Your exact monthly total is always shown live before you commit. For example, 8 storefronts is $106/mo, 15 is $239/mo.

All 50+ real-time signals are on every plan, including Starter — Buy Box and pricing, fees and margin, account health and policy, listing health and suppression, product content and backend fields, reviews and feedback, rank and visibility, inventory and fulfilment, and competitors and hijackers. Nothing in the signal set is reserved for a higher tier. What Pro adds is competitor seller intelligence and margin control on top of the same signals, not more signal types.

You get 14 days free with full access to every feature and every signal — unlimited ASINs, all marketplaces, no card required. Pick a plan any time before the trial ends; nothing is charged until you do.

Yes — annual billing saves 20%. Starter drops from $19 to $15/mo and Pro's base from $49 to $39/mo, with the same discount applied to any additional storefronts. You can switch between monthly and annual any time in settings.

Yes. Order volume and ASIN count are not metered and are not part of your price, so a Q4 or flash-sale spike does not throttle your monitoring or change your bill.

No automatic change. If you're on an existing plan, any pricing update is communicated by email with clear migration options and a transition period — and we won't raise your price or move you to a new plan without your confirmation.

Included, on every plan. The full REST API and outbound webhooks come with Starter and Pro at no extra cost — there's no API tier, no add-on SKU, and no sales call. Most tools in this category put programmatic access behind an enterprise plan. We don't. Want to test before you pay? The 14-day trial includes full API access and needs no card.

Your allowance is 25,000 calls per storefront, per month — so 50,000 on Starter and 125,000 on Pro at five storefronts. Your live allowance is shown in the plan calculator on this page and in your dashboard. If you pass it we reduce your request rate for the rest of the billing cycle and email you — we never block your integration and we never charge overage. If you consistently need more, talk to us and we'll raise it.

Pro gives you the same API everyone else gets, metered by storefront. API Partner removes the monthly meter, adds event types built for your specific pipeline, and puts one of our engineers in a shared channel with you for a 30-day build. It's for teams who already have somewhere to put the data — a dashboard, a warehouse, a reporting layer — and want us feeding it rather than competing with it.

Yes. Agency / Enterprise is Pro at scale, priced to your setup — white-label alerts, consolidated invoicing across many client accounts, an uptime SLA, custom terms, and dedicated onboarding. It starts from around $199/mo. See how agencies use SentryKit.

Not yet — it's in build. In the meantime the full REST API and outbound webhooks are already included on every plan, and an AI agent can read them today. If you want to be told when the connector ships, email support@sentrykit.com and we'll add you to the list.