Inventory Manager API · products
Open a product with at least one variant
POST /products
Open a product with at least one variant, each with its own organization-unique SKU and a kind: stocked (the SKU is an inventory item, else 409 SkuNotStocked) or composite (a kit of components, stocked SKUs in fixed quantities; its own SKU must not be an inventory item (409 CompositeSkuIsStocked) and fits the organization's skuAlphabet (409 SkuNotAllowed); a kit carries its own trade codes, measurements and order rules on kind (409 BarcodeConflict for another SKU's barcode).
options declares up to 3 axes; each variant selects one value per axis and no two share a selection (409 VariantOptionsInvalid). The storefront metadata is what a storefront channel carries: handle (minted from the title when omitted, made unique with -2, -3 …), vendor, productType, category, tags, seo. Appends inventory.product-created. Idempotent on its variants' SKUs: a retried create meets 409 VariantSkuConflict, never a second product.
Access
Requires products:write.
How scopes come from roles: Scopes and roles. Getting a token: Authentication and app tokens.
Retries
Idempotent on its variants' SKUs: a retried create meets 409 VariantSkuConflict, never a second product.
A retry with the same key answers 201, with what the first call recorded.
Why every write carries a key: Idempotency and retries.
Facts appended
inventory.product-created
What a fact is: Facts and the journal.
AI agent tool
Agents call this as catalog_create_product (Catalog: Create product), in the catalog toolset.
Connecting an agent: AI agents.
Example
A product with two colours, each variant an existing stocked SKU.
curl -X POST 'https://inventory.getmanifold.io/products' \
-H "Authorization: Bearer $MANIFOLD_TOKEN" \
-H 'Content-Type: application/json' \
-d '{
"title": "Widget",
"description": "A moulded widget for everyday fixing jobs. Dishwasher safe.",
"vendor": "Tidewater Supply Co.",
"productType": "Widgets",
"tags": [
"Hardware",
"Bestseller"
],
"seo": {
"title": "Widget — moulded, dishwasher safe"
},
"taxClass": "standard",
"options": [
{
"name": "Colour",
"values": [
"Blue",
"Red"
]
}
],
"variants": [
{
"sku": "WIDGET-BLUE",
"options": [
{
"name": "Colour",
"value": "Blue"
}
],
"kind": {
"_tag": "stocked"
}
},
{
"sku": "WIDGET-RED",
"options": [
{
"name": "Colour",
"value": "Red"
}
],
"kind": {
"_tag": "stocked"
}
}
]
}'const response = await fetch("https://inventory.getmanifold.io/products", {
method: "POST",
headers: { Authorization: `Bearer ${process.env.MANIFOLD_TOKEN}`, "Content-Type": "application/json" },
body: JSON.stringify({
"title": "Widget",
"description": "A moulded widget for everyday fixing jobs. Dishwasher safe.",
"vendor": "Tidewater Supply Co.",
"productType": "Widgets",
"tags": [
"Hardware",
"Bestseller"
],
"seo": {
"title": "Widget — moulded, dishwasher safe"
},
"taxClass": "standard",
"options": [
{
"name": "Colour",
"values": [
"Blue",
"Red"
]
}
],
"variants": [
{
"sku": "WIDGET-BLUE",
"options": [
{
"name": "Colour",
"value": "Blue"
}
],
"kind": {
"_tag": "stocked"
}
},
{
"sku": "WIDGET-RED",
"options": [
{
"name": "Colour",
"value": "Red"
}
],
"kind": {
"_tag": "stocked"
}
}
]
}),
});
if (!response.ok) throw new Error(`${response.status}: ${await response.text()}`);
const answer = await response.json();{
"title": "Widget",
"description": "A moulded widget for everyday fixing jobs. Dishwasher safe.",
"vendor": "Tidewater Supply Co.",
"productType": "Widgets",
"tags": [
"Hardware",
"Bestseller"
],
"seo": {
"title": "Widget — moulded, dishwasher safe"
},
"taxClass": "standard",
"options": [
{
"name": "Colour",
"values": [
"Blue",
"Red"
]
}
],
"variants": [
{
"sku": "WIDGET-BLUE",
"options": [
{
"name": "Colour",
"value": "Blue"
}
],
"kind": {
"_tag": "stocked"
}
},
{
"sku": "WIDGET-RED",
"options": [
{
"name": "Colour",
"value": "Red"
}
],
"kind": {
"_tag": "stocked"
}
}
]
}{
"id": "prd_019cd54b-2e40-7921-ac50-698c7db3cbeb",
"title": "Widget",
"description": "A moulded widget for everyday fixing jobs. Dishwasher safe.",
"status": "active",
"handle": "widget",
"vendor": "Tidewater Supply Co.",
"productType": "Widgets",
"tags": [
"Hardware",
"Bestseller"
],
"seo": {
"title": "Widget — moulded, dishwasher safe"
},
"taxClass": "standard",
"options": [
{
"name": "Colour",
"values": [
"Blue",
"Red"
]
}
],
"variants": [
{
"id": "var_019cd54b-2e4a-7ee1-b04a-3bb14b60736f",
"sku": "WIDGET-BLUE",
"options": [
{
"name": "Colour",
"value": "Blue"
}
],
"kind": {
"_tag": "stocked"
},
"createdAt": "2026-03-10T01:10:00.000Z",
"updatedAt": "2026-03-10T01:10:00.000Z"
},
{
"id": "var_019cd54b-2e54-72b7-ae20-2d04347601b0",
"sku": "WIDGET-RED",
"options": [
{
"name": "Colour",
"value": "Red"
}
],
"kind": {
"_tag": "stocked"
},
"createdAt": "2026-03-10T01:10:00.000Z",
"updatedAt": "2026-03-10T01:10:00.000Z"
}
],
"createdAt": "2026-03-10T01:10:00.000Z",
"updatedAt": "2026-03-10T01:10:00.000Z"
}The panel writes this call in other languages. It does not send it: Manifold's APIs do not take calls from a web
page on another site, so run the call from your own code or terminal. The whole API as OpenAPI: inventory-manager.openapi.json. Base URL https://inventory.getmanifold.io.
Errors
Every refusal is a status and a JSON body whose _tag names it. A refused call changes nothing. Some can answer a retry of a call that already worked: they are marked.
401
| Refusal | What it means | What to do |
|---|---|---|
Unauthorized reason | The token is missing, expired or not one Manifold issued. | Get a fresh token and send the call again. |
TokenAlreadyUsed tokenId | A single-use app token was already spent. | Mint a new token for this call. |
402
| Refusal | What it means | What to do |
|---|---|---|
SubscriptionRequired status | The organization's subscription has lapsed, so writes are refused. | An owner settles billing. Reads still work meanwhile. |
403
| Refusal | What it means | What to do |
|---|---|---|
TenantRequired userId | The token names no organization. | Choose the organization, then get a new token. |
ScopeRequired required | The token's roles do not grant the scope this call needs. | Ask an owner or admin for a role that grants it. |
409
| Refusal | What it means | What to do |
|---|---|---|
VariantSkuConflict sku, productId Can answer a retry | The SKU already belongs to another product's variant. | If this answers a retry, your first call probably landed. Use another SKU. |
SkuNotStocked sku | The SKU is not stocked: it is a service or a kit, which holds no units. | Use a stocked SKU. |
CompositeSkuIsStocked sku | A stocked SKU cannot become a kit. | Use a new SKU for the kit. |
SkuNotAllowed sku, alphabet, allowed | The SKU has characters this organization's SKU alphabet does not allow. allowed lists them. | Change the SKU, or an owner widens the alphabet in Settings › General. |
VariantOptionsInvalid productId, sku, reason | The variant's options do not fit the product's options. reason says how. | Send an option value for each of the product's options. |
BarcodeConflict barcode, sku | Another SKU already has this barcode. sku names it. | Use another barcode, or take it off the other SKU first. |
MirroredFromSource source | This area is fed by your source system until the organization goes live. | Make the change in the source system, or go live first. |
503
| Refusal | What it means | What to do |
|---|---|---|
RequestLogUnavailable tokenId, reason | The service could not record the request, so it did nothing. | Send the same request again, with the same key. |
How refusals work everywhere: Errors.
Used in
- Curate a channel catalog, step 2: Create the product