Need a Custom Integration? Nstock's API Makes It Possible
Shopify, WooCommerce, QuickBooks Online, Amazon, and ShipStation cover most manufacturers. For everyone else — a legacy ERP, an internal warehouse system, a specific EDI requirement — Nstock's Custom plan can include API access built around what your integration actually needs.
Why a Custom Integration Instead of a Packaged One?
Nstock ships five packaged integrations — Shopify, WooCommerce, QuickBooks Online, Amazon, and ShipStation — because those are the systems most small and mid-size manufacturers already run. But manufacturers don't all run the same stack. Some are on a legacy MRP or ERP system they can't (or won't) rip out. Some run an internal warehouse or fulfillment tool built years ago that nothing off-the-shelf talks to. Some have a specific EDI requirement from a retail partner or distributor.
That's what Custom plan API access is for — it isn't a general-purpose developer product with public docs and self-serve signup. It's a bespoke integration built with the Nstock team around the system you actually have.
What a Custom Integration Can Include
These are illustrative examples of what's possible to build into a Custom plan engagement, not a fixed, shipped feature list.
Who This Is For
Teams outgrowing the packaged integrations
Shopify, WooCommerce, QuickBooks Online, Amazon, and ShipStation cover the common cases. If your operation runs something else entirely — a legacy MRP/ERP, an internal warehouse system, a specific EDI requirement — that's what Custom plan API access is built for.
Agencies and consultants managing multiple manufacturer clients
If you're standing up or maintaining Nstock across several client accounts and need programmatic access to keep systems in sync, that's a conversation worth having with the Nstock team.
Companies with unique compliance or ERP requirements
Some manufacturers are locked into a specific ERP or compliance system by contract, industry requirement, or years of accumulated process. A custom integration meets that system where it is instead of asking you to abandon it.
How It Works
This is a sales-assisted, bespoke process — not an instant, self-serve signup. It starts with a conversation about your system, what data needs to move where, and how it should be scoped. From there, the Nstock team designs and builds the integration as part of your Custom plan engagement. There's no fixed timeline or fixed spec published up front, because every engagement starts from a different system and a different need.
See how the Custom plan fits alongside Nstock's standard tiers on the pricing page, or explore everything else Nstock does on the features page.
Frequently Asked Questions
Does Nstock have a public API?
Not today as a self-serve, publicly documented API. API access is built as part of Custom plan engagements, scoped one-on-one to what a specific integration actually needs, rather than published as a general-purpose developer product.
What can be integrated?
It depends on the engagement, but common examples include inventory level sync, order data, bills of materials and production run data, and custom webhooks for real-time events — built around your specific system rather than a fixed, pre-built spec.
How much does this cost?
Custom API integrations are part of Nstock's Custom plan, which is negotiated rather than fixed-price — the cost depends on the scope of what's being built. Talk to the Nstock team for a quote based on your specific needs.
How long does a custom integration take?
It varies by scope — a simple inventory sync against a well-documented system takes less time than a bespoke integration with a legacy ERP or an unusual EDI requirement. Timelines are discussed and scoped per engagement, not fixed in advance.
Do you support webhooks?
Real-time webhooks can be built into a Custom plan engagement when a use case calls for it. It isn't a shipped, self-serve feature today — it's something scoped as part of a custom integration conversation.
Talk to Us About Your Integration
Tell us what system you're trying to connect and what you need it to do — we'll scope whether a Custom plan integration makes sense for your operation.