TL;DR
- CloudStore AI's API runs on prepaid credits, not a flat subscription. Free tier gives you $2/month in credit, then $0.05 per order and $0.02 per product fetch. The Developer plan is $99/month with $50/month in credit, then $0.03 per order and $0.01 per product fetch. Enterprise is custom-priced for higher volume.
- Credits run out, the API stops responding until you top up. No surprise overage bills, no automatic escalation to a bigger plan.
- The Developer plan is one general-purpose API, not split into separate Catalog or Checkout tiers. It has a built-in cap on catalog data retrieval volume, on purpose, to keep it scoped for small agent projects.
- The docs are public right now at nubestore.ai/api-docs, and you can self-apply for a sandbox key today. Full self-serve paid signup is targeting late August 2026.
If you're a solo developer or a two-person team bolting an AI shopping agent onto something you're already building, the question isn't "does CloudStore AI have an API" — it does — it's "what happens to my bill when this thing actually gets used." That's the part most API pricing pages bury. Here's the straight version.
The credit system, tier by tier
CloudStore AI doesn't charge a flat monthly fee for unlimited API access at any tier. Instead, every plan gives you a pool of credit each month, and two actions draw down that pool: placing an order through the Checkout API, and fetching product data through the Catalog API. Once the free credit is spent, you're billed per action at the plan's rate.
- Free — get-started tier. $2 in free credit per month. After that, $0.05 per order placed and $0.02 per product fetch. Email support.
- Developer Plan — $99/month. $50 in free credit per month, then $0.03 per order and $0.01 per product fetch once that's used up. Third-party platform costs get passed through with no markup on top. 24/7 email support, and shipping tracking is included free.
- Enterprise Plan — custom pricing, arranged directly with CloudStore AI's team. Custom order and API-call volume, volume discounts, a dedicated account manager, priority support, and custom integration work.
For a small agent project, the math is roughly this: on the Free tier, $2 covers maybe 40 product fetches or a handful of test orders — fine for kicking the tires, not for anything live. The Developer plan's $50 in monthly credit stretches a lot further, and the per-action rate drops too, so both the free allowance and the marginal cost improve at once. That combination is really the whole pitch of the $99/month tier: you're not just buying more credit, you're buying a cheaper rate per order and per fetch than you'd get on Free.
What happens when your credits run out
Nothing dramatic, and nothing sneaky either. When an account's credit balance hits zero, API calls stop working. You won't get charged for overage, and you won't get silently bumped into a more expensive plan — the account just pauses until someone tops it up, and access comes back immediately once it's recharged. If you're building an ai agent checkout flow that runs unattended, that's worth designing around: a hard stop is easier to handle gracefully in code than an open-ended bill would be, but it does mean you want some kind of low-credit alert so your agent doesn't go quiet on you mid-week without warning.
Why the Developer plan has a data cap
The Developer plan is a single, general-purpose version of the API — CloudStore AI doesn't sell a "Catalog-only" or "Checkout-only" version of it. What it does have is a cap on how much catalog data you can pull in a given period, and that's a deliberate design choice, not a bug someone forgot to fix.
The reasoning is straightforward: the Developer tier exists for genuinely small, lightweight use cases — a solo developer's ai shopping agent api project, a prototype, a side product — and the cap keeps it scoped to that. It's not meant to be a cheap way to run large-scale catalog syncing indefinitely. If your project outgrows the cap, that's the signal to talk to CloudStore AI directly about Enterprise, where volume, custom integrations, and account support scale with what you're actually building. Trying to squeeze a bigger workload through the Developer tier isn't really the intended path.
Underneath both tiers sits the same infrastructure CloudStore AI runs for its larger customers — real-time price and inventory sync across 20M+ SKUs from 6,000+ global fashion brands, a Checkout API that's already processed 5M+ orders and over $1B in GMV, and an Agentic Commerce layer built with Visa and PayOS so an AI agent can complete a purchase securely on someone's behalf. The Developer plan is a smaller, cheaper doorway into that same system, not a separate, lesser one.
Getting a test key today
You don't need a sales call to start. The API documentation is live right now at nubestore.ai/api-docs, and it's set up so a developer can read through it and self-apply for a sandbox or test-environment key without talking to anyone first. That's the fastest way to see what the Catalog and Checkout endpoints actually look like before committing to anything.
Full self-serve signup — the part where you create an account, attach payment, and go live on the Developer plan without a sales conversation — is targeting late August 2026. Worth being upfront that this has already slipped once, mostly because demand came in higher than expected, so treat that date as a target rather than a promise. In the meantime, the sandbox path through the docs is the real way to start building and testing against the API today.
FAQ
How much does CloudStore AI's Developer API plan cost?
$99/month, which includes $50 in free API credit each month. After that credit is used, you're billed $0.03 per order placed and $0.01 per product fetch, with third-party platform costs passed through at no markup.
What happens when I run out of API credits?
Your API calls stop working until the account is topped up. There's no automatic overage billing and no forced upgrade — recharging the account restores access right away.
Is there checkout api documentation available before I sign up for a paid plan?
Yes. The documentation is public now at nubestore.ai/api-docs, and developers can self-apply for a sandbox key to start testing without a sales conversation.
Can I use the Developer plan for a large-scale product catalog sync?
Not really, by design. The Developer plan caps catalog data retrieval volume to keep it scoped for small, lightweight agent projects. Larger or higher-volume use cases are meant to move to the Enterprise plan, which has custom volume and pricing.
When can I actually sign up and pay for the Developer plan?
Full self-serve signup, including account creation and payment, is targeting late August 2026. That date has shifted once already due to demand, so it's a directional target rather than a confirmed launch date. The API docs and sandbox key application are available now, ahead of that.
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