What is Katana? Modules, integrations and alternatives
Katana is a cloud-based inventory and manufacturing management product aimed at small makers and direct-to-consumer brands. It combines sales orders, stock control, bills of materials, manufacturing orders and purchasing, and connects to ecommerce channels and accounting packages. It is a lightweight alternative to a full ERP rather than a replacement for one.
Also known as: Katana MRP, Katana Cloud Inventory, Katana Manufacturing ERP
Katana is a browser-based system that keeps one live view of products, materials, stock and orders for a small manufacturer. Sales orders from a store or entered by hand create demand, bills of materials and recipes describe what each product needs, and manufacturing orders and purchase orders cover the gap. Stock levels update as materials are received, consumed and finished goods are produced, so the owner or planner can see what can be promised and what must be bought.
The typical user is a product company that outgrew spreadsheets and ecommerce inventory plugins but does not need a full ERP: food and beverage producers, cosmetics and consumer goods brands, furniture and apparel makers, electronics assemblers and small workshops. Many of them sell through online storefronts and marketplaces, so tight connectivity to those channels matters more than deep shop floor control.
In a manufacturing stack Katana usually sits between the sales channels and the accounting system. Orders flow in from the storefront, production and purchasing are planned inside Katana, and financial postings go to an accounting package. Companies that grow into multi-plant operations, complex routings, regulated traceability or engineer-to-order work tend to outgrow it and move to a larger ERP, so it fits best as a first manufacturing system.
Modules and capabilities
Inventory management
Tracks materials, components and finished goods across locations, with reorder points, stock adjustments and batch or lot tracking where enabled.
Sales orders
Captures customer demand from connected stores or manual entry and ties it to stock allocation and production.
Bills of materials and recipes
Defines the materials, quantities and operations each product needs, including multi-level assemblies.
Manufacturing orders
Plans and releases production, reserves materials and records output against work to be done.
Purchasing
Creates purchase orders from shortages, tracks receipts against open orders and keeps supplier details.
Shop floor view
Gives operators a list of work to be done and a way to report progress on manufacturing orders.
Reporting and planning views
Shows what is short, what is late and what can be produced with current stock.
Integrations and data access
Ecommerce channels
Native connectors are offered for common storefronts and marketplaces so orders and stock levels sync with the sales channel.
Accounting
Connectors to cloud accounting packages carry invoices, bills and stock value postings out of Katana.
Public REST API
An API with token authentication lets you read and write products, stock, sales orders and manufacturing orders from your own code.
Webhooks
Event notifications can push changes to external services so downstream systems react without polling.
Middleware
Automation and integration platforms are often used to connect Katana to shipping, CRM and reporting tools.
Spreadsheets and CSV
Bulk import and export of products, bills of materials and stock help with initial data load and ad hoc analysis.
Strengths
- Quick to adopt, with a clear interface that non-specialists can learn without a long project.
- Strong fit for online sellers because order and stock syncing with sales channels is central to the product.
- Combines inventory, production and purchasing in one place instead of several disconnected tools.
- A documented API lets technical teams automate repeat work and connect other systems.
- Live view of shortages and what can be built from current stock supports day-to-day decisions.
Limitations
- It is not a full ERP: financial accounting is expected to live in a separate package.
- Complex routings, finite capacity scheduling, advanced quality and regulated traceability are limited compared with mid-market ERP.
- Multi-site, multi-entity and multi-currency requirements may exceed what it is designed for.
- Cloud only, so on-premise or air-gapped deployment is not available.
- API rate limits and fixed data models mean very high volume or highly custom flows need careful design.
Where AI helps Katana users
- - Forecast demand from sales history and seasonality to suggest reorder quantities and production batches.
- - Flag shortages and late manufacturing orders in plain language and propose which purchase orders to expedite.
- - Clean up and map product, material and bill of materials data during migration from spreadsheets.
- - Answer questions such as what is on order for this component or which orders are at risk, using the read API.
- - Draft supplier emails and purchase order follow-ups from open shortages, with a person approving anything sent.
Evaluating Katana? Check these
- List your sales channels first and confirm each has a supported connector or a workable API path.
- Test a real multi-level bill of materials with scrap, yield and by-products before committing.
- Check how lot and batch traceability works if you sell food, cosmetics or regulated goods.
- Decide where financial accounting will live and confirm the posting flow and stock valuation method.
- Ask about API limits and webhook coverage if you plan custom automation.
- Plan the growth path: note which requirements would force a move to a larger ERP.
Common alternatives: MRPeasy, Fishbowl, Odoo, Acumatica, Cetec ERP, Zoho Inventory.
Frequently asked questions
Is Katana an ERP?
Katana is better described as cloud inventory and manufacturing software. It covers sales orders, stock, bills of materials, production and purchasing, but it does not aim to be a full financial ERP. Most users pair it with a separate accounting package and add other tools as the business grows.
Who is Katana designed for?
It is designed for small product companies, especially those that sell through online storefronts and need to manage materials, production and stock together. Makers of consumer goods, food and beverage, cosmetics, furniture and light assembled products are common fits. Large multi-plant manufacturers usually need a broader system.
Does Katana have an API?
Yes, Katana offers a REST API secured with tokens, which lets you read and write items such as products, stock, sales orders and manufacturing orders. It is commonly used with automation platforms or custom scripts. Check current documentation for supported objects and rate limits before building on it.
Can Katana run on premise?
No, it is a cloud service used through a browser. If you must keep data inside your own network, or operate in an air-gapped environment, you would need a different product. You can still read data through the API into a private analytics or AI environment that you control.
When should a company outgrow Katana?
Typical triggers are multiple plants or legal entities, finite capacity scheduling, complex routings, deep quality and compliance records, or a need for full general ledger inside one system. At that point mid-market ERP such as Acumatica, Odoo or a manufacturing focused product is usually evaluated.
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MRPeasy vs Katana Selection Scorecard
A 10-question fit test that scores how much planning depth and shop floor control your operation needs, to compare MRPeasy and Katana style cloud MRPs.
Keep exploring
Free tools
- MRPeasy vs Katana Selection ScorecardA 10-question fit test that scores how much planning depth and shop floor control your operation needs, to compare MRPeasy and Katana style cloud MRPs.
- Katana MRP API Request Builder for Orders and InventoryBuild Katana Open API GET requests for sales orders, manufacturing orders, products and inventory, as curl commands or a Python snippet.
- Small Manufacturer MRP Readiness AssessmentScore your readiness for MRPeasy, Katana, Odoo, ERPNext or a similar system, and see what to fix before you buy.
ERP fixes and how-tos
- Katana MRP Integrations and the MRPeasy REST APIKatana MRP integrations and the MRPeasy REST API: what the Shopify, accounting and marketplace connectors sync, where the API fits and how to avoid sync gaps.
- Fix Katana and Shopify Inventory Not SyncingKatana stock not updating in Shopify, or Shopify orders missing in Katana? Check SKU matching, locations, variants, and sync direction with this step list.
- Fix Katana API 429 Too Many RequestsKatana's public API returns HTTP 429 when your integration sends too many requests per window. Learn how to back off, batch reads, page correctly and cache.
AI on your ERP
- AI for Katana Cloud ManufacturingAdd private AI on top of Katana: natural-language answers across Katana, Shopify, and QuickBooks Online, plus agents for reorder points and channel demand, without a public model reading your data.
- AI for MRPeasy Manufacturing ERPAdd private AI to MRPeasy: natural-language answers over production, inventory, and lot traceability data, plus MRP exception and PO follow-up agents, without a public AI reading your data.
Integrations
- How to use ChatGPT with KatanaConnect ChatGPT to Katana: custom GPT actions over the REST API, exports versus live access, enterprise data controls, and when a private model is the better call.
- How to add AI agents to KatanaHow to add AI agents to Katana: wrap the Katana REST API as a tool layer, let agents triage shortages and draft purchase orders, and keep a human approving writes.
Software
- MRPeasyMRPeasy is a cloud MRP and ERP system for small manufacturers. See its modules, integrations, limitations and alternatives for shortlisting.
- FishbowlIndependent profile of Fishbowl inventory and light manufacturing software: modules, QuickBooks and ecommerce integrations, strengths, limits, alternatives and AI uses.