Lengow

Lengow is a French e-commerce automation platform (Nantes, founded 2009; part of the Lengow group alongside Netrivals and NetMonitor) that connects merchant product catalogues to marketplaces, price-comparison sites and advertising channels across Europe. Its Channel Execution suite covers NetMarkets for marketplace management and NetAmplify for advertising feed management, plus NetRivals price intelligence and NetMonitor reseller monitoring. Lengow publishes a public REST API at api.lengow.io covering order retrieval and order actions (accept, refuse, ship, cancel, refund) across marketplaces, marketplace metadata, invoice and delivery documents, Zalando ZFS warehouse communication, product integration reports, and a beta v1.0 catalogue API for products and attributes. Authentication is a session token exchanged from an account access_token + secret pair. First-party e-commerce plugins are published on GitHub for PrestaShop, Magento 2, WooCommerce, Shopware 6 and Salesforce Commerce Cloud.

Lengow publishes 4 API contracts indexed on the APIs.io network, including Authentication API, Catalogues API, Marketplaces API, and 1 more. Tagged areas include Company, Software-as-a-Service, E-Commerce, Marketplace, and Product Feeds.

The Lengow catalog on APIs.io includes 1 Spectral governance ruleset.

Lengow’s developer surface includes documentation, API reference, getting-started guide, support, engineering blog, pricing, signup flow, and 31 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

57.5/100 strong ▬ flat Agent 36/100 agent ready Front door AI 3/6 light Heartbeat 96/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessEnterprise

2 published contracts 3 Agent Skills

Company Software-as-a-Service E-Commerce Marketplace Product Feeds Retail Advertising Order Management Price Intelligence France

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Product Information Management

BC-2370

Catalogues

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 57.5/100 · strong

Contract Quality 9.5 / 19

Developer Ergonomics 9.9 / 15

Access Clarity 7.9 / 15

Operational Transparency 4.1 / 10

Contract Governance 2.9 / 9

Discoverability 5.5 / 8

Regulatory Posture 5.3 / 15

Create-or-Update Ergonomics 2.2 / 10

Agent readiness — 36/100 · agent ready

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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 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

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

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.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 75% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

6 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 50.5 — up to +12.4 composite points
Access Clarity scores 52.6 — up to +9.5 composite points
Contract Governance scores 31.8 — up to +8.2 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

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 the provider profile at artifacts.apis.io/lengow/apis.yml: open an issue on github.com/api-evangelist/lengow to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
MACH & Headless Commerce	builds-on	19.4	-	-
Amazon Seller Ecosystem (Selling Partner Appstore, Amazon Ads partners)	builds-on	19.4	-	-
E-commerce Extension Marketplaces (Adobe Commerce / Magento, Shopware)	builds-on	19.4	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

OpenAPI

measured — observed by APIs.io (published)

APIs 4

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

Lengow Authentication API

The Authentication API from Lengow — 2 operation(s) for authentication.

Lengow Catalogues API

The Catalogues API from Lengow — 5 operation(s) for catalogues.

Lengow Marketplaces API

The Marketplaces API from Lengow — 1 operation(s) for marketplaces.

Lengow Rate limits API

The Rate limits API from Lengow — 1 operation(s) for rate limits.

Agent Skills 3

Packaged agent skills for driving this provider's APIs from an AI assistant.

Authenticate against the Lengow API and check your rate budget

AGENT SKILL

Pull a Lengow feed integration report and triage product errors

AGENT SKILL

Sync products into a Lengow catalogue

AGENT SKILL

Lengow API pricing

Rate limits

: 10 1 minute
: configured per route; not published as a static number fixed window (length returned per route by GET /rate limits)

Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Lengow Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Lengow Rate Limits

2 limits

RATE LIMITS

FinOps 1

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

Lengow Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Lengow API Rules

53 rules · 46 errors 6 warnings 1 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Lengow Channel Execution Overlay

7 actions · servers · lengow-channel-execution-openapi.json

DERIVED

Security Posture 3

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

Lengow Authentication

http · 1 scheme

SECURITY

Lengow Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Lengow Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Agentic Access 1

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

Lengow Agentic Access

14 operations · 6 acting

AGENTIC

Resources

Get Started 4

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

GettingStarted

GettingStarted

SignUp

SignUp

Login

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 4

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

WellKnown

LLMsTxt

AgentSkill

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Conventions

ErrorCatalog

Lifecycle

Conformance

DataModel

Build 3

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

SecurityTxt

Authentication

Security

Compliance

Operate 5

Status, limits, changes, and where to get help

Support

HelpCenter

ChangeLog

ChangeLog

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

Pricing

TermsOfService

PrivacyPolicy

Plans

Company 3

The organization behind the API

BlogRSS

BlogRSS

Website

Website

Blog

Blog

Other 2

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Overlay

Overlay

Source (apis.yml)

aid: lengow
name: Lengow
description: Lengow is a French e-commerce automation platform (Nantes, founded 2009; part of the Lengow group alongside Netrivals
  and NetMonitor) that connects merchant product catalogues to marketplaces, price-comparison sites and advertising channels
  across Europe. Its Channel Execution suite covers NetMarkets for marketplace management and NetAmplify for advertising feed
  management, plus NetRivals price intelligence and NetMonitor reseller monitoring. Lengow publishes a public REST API at
  api.lengow.io covering order retrieval and order actions (accept, refuse, ship, cancel, refund) across marketplaces, marketplace
  metadata, invoice and delivery documents, Zalando ZFS warehouse communication, product integration reports, and a beta v1.0
  catalogue API for products and attributes. Authentication is a session token exchanged from an account access_token + secret
  pair. First-party e-commerce plugins are published on GitHub for PrestaShop, Magento 2, WooCommerce, Shopware 6 and Salesforce
  Commerce Cloud.
url: https://raw.githubusercontent.com/api-evangelist/lengow/refs/heads/main/apis.yml
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: enterprise
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Enterprise
  confidence: medium
  source:
  - authentication
  - rate-limits
  - security
  generated: '2026-11-06'
  method: derived
image: https://www.lengow.com/wp-content/uploads/2024/12/Lengow_Homepage_Loop.png
x-type: company
x-source: serena-portfolio
specificationVersion: '0.23'
created: '2026-08-17'
modified: '2026-10-06'
tags:
- Company
- Software-as-a-Service
- E-Commerce
- Marketplace
- Product Feeds
- Retail
- Advertising
- Order Management
- Price Intelligence
- France
tags_raw:
- Company
- SaaS
- E-Commerce
- Marketplaces
- Product Feeds
- Retail
- Advertising
- Order Management
- Price Intelligence
- France
apis:
- aid: lengow:lengow-authentication-api
  name: Lengow Authentication API
  description: The Authentication API from Lengow — 2 operation(s) for authentication.
  humanURL: https://api.lengow.io/docs/
  baseURL: https://api.lengow.io
  tags:
  - Authentication
  properties:
  - type: OpenAPI
    url: openapi/lengow-authentication-api-openapi.yml
  - type: Documentation
    url: https://api.lengow.io/docs/
  - type: APIReference
    url: https://docs.lengow.io/
  - type: GettingStarted
    url: https://help.lengow.com/hc/en-us/articles/360011980072-Getting-started-on-the-Lengow-API
  - type: Authentication
    url: authentication/lengow-authentication.yml
  - type: RateLimits
    url: rate-limits/lengow-rate-limits.yml
  - type: ErrorCatalog
    url: errors/lengow-problem-types.yml
  - type: Conventions
    url: conventions/lengow-conventions.yml
  - type: DataModel
    url: data-model/lengow-data-model.yml
- aid: lengow:lengow-catalogues-api
  name: Lengow Catalogues API
  description: The Catalogues API from Lengow — 5 operation(s) for catalogues.
  humanURL: https://api.lengow.io/docs/
  baseURL: https://api.lengow.io
  tags:
  - Catalogues
  properties:
  - type: OpenAPI
    url: openapi/lengow-catalogues-api-openapi.yml
  - type: Documentation
    url: https://api.lengow.io/docs/
  - type: APIReference
    url: https://docs.lengow.io/
  - type: GettingStarted
    url: https://help.lengow.com/hc/en-us/articles/360011980072-Getting-started-on-the-Lengow-API
  - type: Authentication
    url: authentication/lengow-authentication.yml
  - type: RateLimits
    url: rate-limits/lengow-rate-limits.yml
  - type: ErrorCatalog
    url: errors/lengow-problem-types.yml
  - type: Conventions
    url: conventions/lengow-conventions.yml
  - type: DataModel
    url: data-model/lengow-data-model.yml
- aid: lengow:lengow-marketplaces-api
  name: Lengow Marketplaces API
  description: The Marketplaces API from Lengow — 1 operation(s) for marketplaces.
  humanURL: https://api.lengow.io/docs/
  baseURL: https://api.lengow.io
  tags:
  - Marketplace
  tags_raw:
  - Marketplaces
  properties:
  - type: OpenAPI
    url: openapi/lengow-marketplaces-api-openapi.yml
  - type: Documentation
    url: https://api.lengow.io/docs/
  - type: APIReference
    url: https://docs.lengow.io/
  - type: GettingStarted
    url: https://help.lengow.com/hc/en-us/articles/360011980072-Getting-started-on-the-Lengow-API
  - type: Authentication
    url: authentication/lengow-authentication.yml
  - type: RateLimits
    url: rate-limits/lengow-rate-limits.yml
  - type: ErrorCatalog
    url: errors/lengow-problem-types.yml
  - type: Conventions
    url: conventions/lengow-conventions.yml
  - type: DataModel
    url: data-model/lengow-data-model.yml
- aid: lengow:lengow-rate-limits-api
  name: Lengow Rate limits API
  description: The Rate limits API from Lengow — 1 operation(s) for rate limits.
  humanURL: https://api.lengow.io/docs/
  baseURL: https://api.lengow.io
  tags:
  - Rate Limits
  tags_raw:
  - Rate limits
  properties:
  - type: OpenAPI
    url: openapi/lengow-rate-limits-api-openapi.yml
  - type: Documentation
    url: https://api.lengow.io/docs/
  - type: APIReference
    url: https://docs.lengow.io/
  - type: GettingStarted
    url: https://help.lengow.com/hc/en-us/articles/360011980072-Getting-started-on-the-Lengow-API
  - type: Authentication
    url: authentication/lengow-authentication.yml
  - type: RateLimits
    url: rate-limits/lengow-rate-limits.yml
  - type: ErrorCatalog
    url: errors/lengow-problem-types.yml
  - type: Conventions
    url: conventions/lengow-conventions.yml
  - type: DataModel
    url: data-model/lengow-data-model.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- url: https://blog.lengow.com/rss.xml
  type: BlogRSS
- type: CapabilityMap
  url: capabilities/lengow-capability-edges.yml
  name: Lengow Business Capability Map
- type: AgenticAccess
  url: agentic-access/lengow-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/lengow-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/lengow-domain-security.yml
- type: Website
  url: https://www.lengow.com/
- type: DeveloperPortal
  url: https://docs.lengow.io/
- type: Documentation
  url: https://api.lengow.io/docs/
- type: APIReference
  url: https://docs.lengow.io/
- type: GettingStarted
  url: https://help.lengow.com/hc/en-us/articles/360011980072-Getting-started-on-the-Lengow-API
- type: Support
  url: https://help.lengow.com/hc/en-us
- type: HelpCenter
  url: https://help.lengow.com/hc/en-us
- type: Blog
  url: https://blog.lengow.com/
- type: GitHubOrganization
  url: https://github.com/lengow
- type: Pricing
  url: https://www.lengow.com/pricing/
- type: SignUp
  url: https://my.lengow.io/
- type: Login
  url: https://my.lengow.io/
- type: TermsOfService
  url: https://www.lengow.com/terms/
- type: PrivacyPolicy
  url: https://www.lengow.com/privacy-policy/
- type: ChangeLog
  url: https://docs.lengow.io/#api-release-notes
- type: Packages
  url: packages/lengow-packages.yml
- type: SDKs
  url: packages/lengow-packages.yml
- type: WellKnown
  url: well-known/lengow-well-known.yml
- type: SecurityTxt
  url: well-known/lengow-security.txt
- type: LLMsTxt
  url: llms/lengow-llms.txt
- type: Authentication
  url: authentication/lengow-authentication.yml
- type: Conventions
  url: conventions/lengow-conventions.yml
- type: ErrorCatalog
  url: errors/lengow-problem-types.yml
- type: Lifecycle
  url: lifecycle/lengow-lifecycle.yml
- type: ChangeLog
  url: changelog/lengow-changelog.yml
- type: Conformance
  url: conformance/lengow-conformance.yml
- type: DataModel
  url: data-model/lengow-data-model.yml
- type: Plans
  url: plans/lengow-plans-pricing.yml
- type: RateLimits
  url: rate-limits/lengow-rate-limits.yml
- type: Overlay
  url: overlays/lengow-channel-execution-overlay.yaml
- type: AgentSkill
  url: skills/_index.yml
- type: Security
  url: https://api.lengow.io/.well-known/security.txt
- type: Compliance
  url: https://www.lengow.com/gdpr/
x-enrichment:
  date: '2026-08-17'
  status: enriched
  artifacts_added: 24
  pass: local-v1

Lengow API — frequently asked questions

Does Lengow have an API?

Yes. APIs.io lists 4 APIs from Lengow, including Lengow Authentication API, Lengow Catalogues API and Lengow Marketplaces API, and 1 more.

Is there an OpenAPI specification for the Lengow API?

Yes. APIs.io indexes 4 OpenAPI specifications for Lengow, each linked for download from this page.

How do I authenticate with the Lengow API?

Lengow uses bearer-token authentication (http · 1 scheme). The details are profiled on APIs.io as Lengow Authentication.

Is the Lengow API ready for AI agents?

Lengow has a Kin Score of 57.5 out of 100 (strong) and an Agent Readiness score of 35.9 (agent-ready), scored by API Evangelist on 2026-11-06.

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