SellerX

SellerX is a Berlin-based consumer-brand builder, founded in 2020, that acquires, operates and scales everyday consumer products into omnichannel global brands. Originally one of Europe's largest Amazon FBA aggregators, it merged with KW Commerce in 2021 and with the US aggregator Elevate Brands in 2023, and has since repositioned itself from an aggregator into a brand builder. The group operates 20+ brands and 25k+ products across 10+ countries from hubs in Berlin, London, Manila and Dongguan, and has raised more than $750M in equity and debt from Sofina, L Catterton, Cherry Ventures, Felix Capital, 83North, an ADIA subsidiary, BlackRock and Victory Park Capital. SellerX sells consumer goods to consumers through marketplaces and its own channels; it publishes no public API, developer portal, SDK or machine-readable specification of its own.

SellerX publishes 1 API on the APIs.io network. Tagged areas include Company, E-Commerce, Consumer Brands, Retail, and Amazon Aggregator.

SellerX’s developer surface includes legal docs, authentication, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub
15.1/100 emerging ▬ flat Agent 20/100 agent aware Full breakdown ↓
scored 2026-08-17 · rubric v0.11.0
1 APIs 1 MCP Servers
CompanyE-CommerceConsumer BrandsRetailAmazon AggregatorMarketplace SellerConsumer Packaged GoodsGermany

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-08-17 · rubric v0.11.0
Composite quality — 15.1/100 · emerging
Contract Quality 0.0 / 25
Developer Ergonomics 3.9 / 20
Commercial Clarity 2.1 / 20
Operational Transparency 0.7 / 13
Governance 1.5 / 12
Discoverability 6.9 / 10
Agent readiness — 20/100 · agent aware
Machine-Readable Contract 0 / 18
Agentic Access Contract 0 / 10
MCP Server 12 / 12
Machine-Readable Auth 10 / 10
Idempotency 0 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 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
Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. This rating is computed from github.com/api-evangelist/sellerx: open an issue to ask a question, or submit a pull request to add artifacts. Want it done for you? Prioritized profiling — $2,500 →

APIs 1

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

SellerX MCP Server

A live, remotely hosted Model Context Protocol server operated by SellerX at mcp.sellerx.com. The endpoint requires an OAuth 2.1 bearer token, so the tool manifest is auth-gated...

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

sellerx-mcp.yml

MCP SERVER

Security Posture 2

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

Sellerx Authentication

oauth2 · 1 scheme

SECURITY

Sellerx Domain Security

TLSv1.2 · DMARC

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Sellerx Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Resources

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

MCPServer
MCPServer
 WellKnown
WellKnown

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Conformance
Conformance

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization
GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

DomainSecurity
DomainSecurity
 Authentication
Authentication
 OAuthScopes
OAuthScopes

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy
PrivacyPolicy
 Legal
Legal

Company 4

The organization behind the API

Website
Website
 About
About
 Careers
Careers
 LinkedIn
LinkedIn

Other 1

Properties that don't map to a standard resource type

Products
Products

Source (apis.yml)

apis.yml Raw ↑ 
aid: sellerx
name: SellerX
description: SellerX is a Berlin-based consumer-brand builder, founded in 2020, that acquires, operates and scales everyday
  consumer products into omnichannel global brands. Originally one of Europe's largest Amazon FBA aggregators, it merged with
  KW Commerce in 2021 and with the US aggregator Elevate Brands in 2023, and has since repositioned itself from an aggregator
  into a brand builder. The group operates 20+ brands and 25k+ products across 10+ countries from hubs in Berlin, London,
  Manila and Dongguan, and has raised more than $750M in equity and debt from Sofina, L Catterton, Cherry Ventures, Felix
  Capital, 83North, an ADIA subsidiary, BlackRock and Victory Park Capital. SellerX sells consumer goods to consumers through
  marketplaces and its own channels; it publishes no public API, developer portal, SDK or machine-readable specification of
  its own.
url: https://raw.githubusercontent.com/api-evangelist/sellerx/refs/heads/main/apis.yml
image: https://www.sellerx.com/logo.png
x-type: company
x-source: harvest:secondary-market
specificationVersion: '0.20'
created: '2026-08-05'
modified: '2026-08-05'
tags:
- Company
- E-Commerce
- Consumer Brands
- Retail
- Amazon Aggregator
- Marketplace Seller
- Consumer Packaged Goods
- Germany
apis:
- aid: sellerx:mcp
  name: SellerX MCP Server
  description: A live, remotely hosted Model Context Protocol server operated by SellerX at mcp.sellerx.com. The endpoint
    requires an OAuth 2.1 bearer token, so the tool manifest is auth-gated, but the server publishes RFC 8414 authorization-server
    metadata and RFC 9728 protected-resource metadata anonymously, along with a dynamic client registration endpoint and mandatory
    PKCE (S256). SellerX does not link to, document, or advertise this server anywhere on its corporate site; it was discovered
    through Certificate Transparency logs for sellerx.com.
  humanURL: https://mcp.sellerx.com/.well-known/oauth-protected-resource/mcp
  baseURL: https://mcp.sellerx.com/mcp
  tags:
  - MCP
  - Model Context Protocol
  - OAuth
  - Agents
  properties:
  - type: MCPServer
    url: mcp/sellerx-mcp.yml
  - type: Authentication
    url: authentication/sellerx-authentication.yml
  - type: OAuthScopes
    url: scopes/sellerx-scopes.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/sellerx-domain-security.yml
- type: Website
  url: https://www.sellerx.com/
- type: About
  url: https://www.sellerx.com/about/
- type: Products
  url: https://www.sellerx.com/brands/
- type: Careers
  url: https://www.sellerx.com/work-with-us/
- type: PrivacyPolicy
  url: https://www.sellerx.com/privacy-policy
- type: Legal
  url: https://www.sellerx.com/imprint
- type: GitHubOrganization
  url: https://github.com/kwcommerce
- type: LinkedIn
  url: https://www.linkedin.com/company/seller-x
- type: MCPServer
  url: mcp/sellerx-mcp.yml
- type: Authentication
  url: authentication/sellerx-authentication.yml
- type: OAuthScopes
  url: scopes/sellerx-scopes.yml
- type: WellKnown
  url: well-known/sellerx-well-known.yml
- type: Conformance
  url: conformance/sellerx-conformance.yml
x-enrichment:
  date: '2026-08-05'
  status: enriched
  artifacts_added: 8
  pass: local-v1
x-coverage:
  state: covered
  reason: null
  detail: SellerX runs a live remote MCP server at https://mcp.sellerx.com/mcp that it does not link or document anywhere
    public — it was found only through Certificate Transparency logs for sellerx.com. Its OAuth 2.1 discovery metadata (RFC
    8414 + RFC 9728) is served anonymously and is captured verbatim, but the JSON-RPC tools/list manifest returns 401 invalid_token,
    so the tool set and its input schemas are auth-gated and deliberately not recorded. The corporate site publishes no API
    of any kind and answers HTTP 200 with an identical SPA body for every path, including nonexistent ones.
  evidence:
  - url: https://mcp.sellerx.com/.well-known/oauth-authorization-server
    status: 200
  - url: https://mcp.sellerx.com/.well-known/oauth-protected-resource/mcp
    status: 200
  - url: https://mcp.sellerx.com/mcp
    status: 401
  - url: https://www.sellerx.com/openapi.json
    status: 200
  checked: '2026-08-05'