Linnworks
AnnouncedMulti-channel order and inventory management platform for e-commerce sellers, centralizing orders from Amazon, eBay, Shopify, and 100+ channels into a single workflow.
Linnworks has announced plans to support UCP as a participant. No public endpoint is available yet.
Linnworks is a multi-channel order and inventory management platform for e-commerce sellers. It aggregates orders from Amazon, eBay, Shopify, WooCommerce, and 100+ other selling channels into a single interface, enabling sellers to process, pick, pack, and ship orders without switching between platforms. Inventory counts sync across all channels in near real time to prevent overselling.
The platform covers the operational layer of e-commerce: order processing workflows, batch printing of shipping labels, warehouse location management, and shipping carrier selection. Linnworks integrates with major carriers (Royal Mail, DHL, UPS, FedEx) and fulfillment services directly. Its rules engine allows merchants to automate shipping method selection, order routing, and fulfillment priority based on configurable conditions.
For UCP, Linnworks represents the order management and fulfillment layer of a multi-marketplace seller stack. An agent completing a purchase through a UCP endpoint backed by a Linnworks merchant would interact with Linnworks' inventory and order management layer for fulfillment orchestration. Linnworks is building out API capabilities that would allow external systems, including UCP agents, to interact with their order and inventory data programmatically.
Why This Matters for UCP
Linnworks provides multi-channel order and inventory management for e-commerce sellers, connecting the fulfillment operations layer to UCP-initiated orders across 100+ selling channels.
UCP Capabilities
UCP Endpoint
Announced — Endpoint not yet publicly available
Integration Example
// Linnworks API for order and inventory management.
// Token-based REST API with session authentication.
// Authenticate to get session token
const session = await fetch('https://api.linnworks.net/api/Auth/Multilogin', {
method: 'POST',
headers: { 'Content-Type': 'application/x-www-form-urlencoded' },
body: new URLSearchParams({
applicationId: process.env.LINNWORKS_APP_ID,
applicationSecret: process.env.LINNWORKS_APP_SECRET,
token: process.env.LINNWORKS_INSTALL_TOKEN,
}),
}).then(r => r.json());
const sessionToken = session.Token;
const server = session.Server;
// Get unprocessed orders
const orders = await fetch(server + '/api/Orders/GetAllOpenOrders', {
method: 'POST',
headers: {
Authorization: sessionToken,
'Content-Type': 'application/json',
},
}).then(r => r.json());Category
Marketplace ManagementUCP Status
AnnouncedTags
Pricing
paid
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Reviews
★★★★★4.7 (3 reviews)These are illustrative examples to show what reviews will look like. Submit your own experience below.
J. Santos
Senior Engineer · Feb 28, 2026
Integration was straightforward. The UCP endpoint discovery works as documented and checkout completes in under 2 seconds.
M. Lee
Backend Developer · Mar 3, 2026
Works well for our use case. The documentation is accurate and the implementation matches what the spec describes.
R. Kapoor
Platform Engineer · Jan 15, 2026
Integrated in an afternoon. Solid implementation with no unexpected edge cases in production.
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