3PL Warehouse Manager

3PL Warehouse Manager is the flagship cloud warehouse management system (WMS) built for third-party logistics providers, now sold under Extensiv and historically known as "3PL Central". Its public integration surface is the SecureWMS REST API (base https://secure-wms.com), used to create and retrieve orders, manage items and inventory, read stock summaries and stock details, submit and track inbound receivers (ASN), and enumerate customers, warehouses/facilities, and locations. Authentication is OAuth 2.0 client-credentials against https://secure-wms.com/AuthServer/api/Token, returning a short-lived bearer token (typically valid 30-60 minutes). This entry documents the 3PL Warehouse Manager / SecureWMS API specifically; the broader Extensiv company (which also spans Order Management, Integration Manager, Fulfillment Marketplace, and Warehouse Analytics) is tracked complementarily under the all/extensiv company entry.

3PL Warehouse Manager publishes 9 APIs on the APIs.io network, including Authentication API, Customers API, Inventory API, and 6 more. Tagged areas include Warehouse Management, WMS, 3PL, Logistics, and Fulfillment.

3PL Warehouse Manager’s developer surface includes authentication, documentation, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

40.5/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-14 · rubric v0.22.0

AccessFreemiumSelf serve⚡ Free to try

1 APIs

Warehouse Management WMS 3PL Logistics Fulfillment Inventory OrderSecureWMSExtensiv

Kin Score

Kin Score How this is scored →
scored 2026-09-14 · rubric v0.22.0

Composite quality — 40.5/100 · developing

Contract Quality 12.6 / 23

Developer Ergonomics 5.8 / 18

Access Clarity 8.5 / 18

Operational Transparency 4.0 / 12

Contract Governance 0.0 / 11

Discoverability 6.2 / 9

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Create-or-Update Ergonomics applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from github.com/api-evangelist/3plcentral: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 9

Individual APIs this provider publishes, each with its own machine-readable definition.

3PL Warehouse Manager Authentication API

OAuth 2.0 client-credentials token issuance.

3PL Warehouse Manager Customers API

Customers (merchants) a 3PL fulfills for.

3PL Warehouse Manager Inventory API

On-hand inventory and per-receive stock details.

3PL Warehouse Manager Items API

Customer SKU items (catalog).

3PL Warehouse Manager Orders API

Outbound order creation and retrieval.

3PL Warehouse Manager Packages API

Packages (cartons) on a shipped order.

3PL Warehouse Manager Receivers API

Inbound receivers (Advance Ship Notices).

3PL Warehouse Manager Stock Summaries API

Rolled-up on-hand / available / allocated quantities.

3PL Warehouse Manager Warehouses API

Facilities and their bin locations.

Scroll for all 9

Open Collections 11

Open, tool-agnostic API collections (OpenAPI-derived and Bruno).

API Collection

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Customers API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Inventory API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Items API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Orders API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Packages API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Receivers API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Stock Summaries API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST Authentication Warehouses API

OPEN COLLECTION

3PL Warehouse Manager (SecureWMS) REST API

OPEN COLLECTION

Scroll for all 11

Pricing Plans 1

Published pricing tiers and plan structures.

3Plcentral Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

3Plcentral Rate Limits

3 limits

RATE LIMITS

FinOps 1

Cost, billing, and metering signals for API financial operations.

3Plcentral Finops

FINOPS

Security Posture 3

Authentication, domain security, vulnerability disclosure, and trust-center signals.

3Plcentral Authentication

http · 2 schemes

SECURITY

3Plcentral Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

3Plcentral Trust Center

SOC 2, GDPR

SECURITY

Agentic Access 1

Recommended x-agentic-access execution contracts for AI agents.

3Plcentral Agentic Access

15 operations · 3 acting

AGENTIC

Resources

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 1

Status, limits, changes, and where to get help

RateLimits

RateLimits

Commercial 2

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

LinkedIn

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: 3plcentral
url: https://raw.githubusercontent.com/api-evangelist/3plcentral/refs/heads/main/apis.yml
name: 3PL Warehouse Manager
kind: company
description: 3PL Warehouse Manager is the flagship cloud warehouse management system (WMS) built for third-party logistics
  providers, now sold under Extensiv and historically known as "3PL Central". Its public integration surface is the SecureWMS
  REST API (base https://secure-wms.com), used to create and retrieve orders, manage items and inventory, read stock summaries
  and stock details, submit and track inbound receivers (ASN), and enumerate customers, warehouses/facilities, and locations.
  Authentication is OAuth 2.0 client-credentials against https://secure-wms.com/AuthServer/api/Token, returning a short-lived
  bearer token (typically valid 30-60 minutes). This entry documents the 3PL Warehouse Manager / SecureWMS API specifically;
  the broader Extensiv company (which also spans Order Management, Integration Manager, Fulfillment Marketplace, and Warehouse
  Analytics) is tracked complementarily under the all/extensiv company entry.
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: true
  label: Hosted service · you call their endpoint
  confidence: high
  source:
  - openapi
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/3plcentral.png
tags:
- Warehouse Management
- WMS
- 3PL
- Logistics
- Fulfillment
- Inventory
- Order
- SecureWMS
- Extensiv
tags_raw:
- Warehouse Management
- WMS
- 3PL
- Logistics
- Fulfillment
- Inventory
- Orders
- SecureWMS
- Extensiv
created: '2026-07-04'
modified: '2026-07-04'
specificationVersion: '0.23'
apis:
- aid: 3plcentral:3plcentral-authentication-api
  name: 3PL Warehouse Manager Authentication API
  description: OAuth 2.0 client-credentials token issuance.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-authentication-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-customers-api
  name: 3PL Warehouse Manager Customers API
  description: Customers (merchants) a 3PL fulfills for.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Customers
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-customers-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-inventory-api
  name: 3PL Warehouse Manager Inventory API
  description: On-hand inventory and per-receive stock details.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Inventory
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-inventory-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-items-api
  name: 3PL Warehouse Manager Items API
  description: Customer SKU items (catalog).
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Item
  tags_raw:
  - Items
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-items-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-orders-api
  name: 3PL Warehouse Manager Orders API
  description: Outbound order creation and retrieval.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Order
  tags_raw:
  - Orders
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-orders-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-packages-api
  name: 3PL Warehouse Manager Packages API
  description: Packages (cartons) on a shipped order.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Packages
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-packages-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-receivers-api
  name: 3PL Warehouse Manager Receivers API
  description: Inbound receivers (Advance Ship Notices).
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Receivers
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-receivers-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-stock-summaries-api
  name: 3PL Warehouse Manager Stock Summaries API
  description: Rolled-up on-hand / available / allocated quantities.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Stock Summaries
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-stock-summaries-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
- aid: 3plcentral:3plcentral-warehouses-api
  name: 3PL Warehouse Manager Warehouses API
  description: Facilities and their bin locations.
  humanURL: https://developer.3plcentral.com/
  baseURL: https://secure-wms.com
  tags:
  - Warehouses
  properties:
  - type: OpenAPI
    url: openapi/3plcentral-warehouses-api-openapi.yml
  - type: Documentation
    url: https://developer.3plcentral.com/
  - type: APIReference
    url: https://developer.extensiv.com/pages/3pl-wareshouse-manager.html
  - type: PostmanCollection
    url: collections/3plcentral.postman_collection.json
  - type: OpenCollection
    url: collections/3plcentral.opencollection.json
common:
- type: CapabilityMap
  url: capabilities/3plcentral-capability-edges.yml
  name: 3PL Warehouse Manager Business Capability Map
- type: AgenticAccess
  url: agentic-access/3plcentral-agentic-access.yml
- type: TrustCenter
  url: security/3plcentral-trust-center.yml
- type: DomainSecurity
  url: security/3plcentral-domain-security.yml
- type: Authentication
  url: authentication/3plcentral-authentication.yml
- type: GitHubOrganization
  url: https://github.com/tpl-central
- type: LinkedIn
  url: https://www.linkedin.com/company/extensiv
- type: Website
  url: https://www.extensiv.com/3pl-warehouse-manager
- type: Documentation
  url: https://developer.3plcentral.com/
- type: Plans
  url: plans/3plcentral-plans-pricing.yml
- type: RateLimits
  url: rate-limits/3plcentral-rate-limits.yml
- type: FinOps
  url: finops/3plcentral-finops.yml
- url: https://www.extensiv.com/blog
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: extensiv
x-relationship: product

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