Valyuu

Valyuu is an Amsterdam-founded embedded recommerce service provider offering a plug-and-play trade-in platform that businesses integrate to buy back, resell, and recycle used consumer electronics such as smartphones, tablets, and smartwatches across Dutch, German, and English-language markets. Its partner-facing Trade-In API powers embedded trade-in flows covering device catalogs, condition questions, offers, payments, and shipping. Valyuu is a Techstars portfolio company; as of mid-2026 valyuu.com redirects to prioont.com, whose storefront is currently unreachable.

Valyuu is listed with 1 API on the APIs.io network. Tagged areas include Company, Recommerce, Trade-In, Circular Economy, and Consumer Electronics.

Valyuu’s developer surface includes authentication, sandbox, and 10 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

16.4/100 emerging ▬ flat Agent 3/100 human only Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

1 API

Company Recommerce Trade-In Circular Economy Consumer Electronics Sustainability E-Commerce

Kin Score

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

Composite quality — 16.4/100 · emerging

Contract Quality 0.0 / 21

Developer Ergonomics 3.2 / 17

Access Clarity 3.6 / 17

Operational Transparency 0.3 / 11

Contract Governance 0.0 / 10

Discoverability 6.2 / 9

Regulatory Posture 2.9 / 15

Agent readiness — 3/100 · human only

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 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 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

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 could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

Show this score on your site.

It updates itself when the score changes. Paste this where you link to your API docs:

<a href="https://apis.io/providers/valyuu/"><img src="https://apis.io/badge/valyuu/card.svg" alt="Valyuu on APIs.io — Kin Score by API Evangelist"></a>

Other styles, a README pill and a shields.io endpoint are on the badge page.

Raise your score.

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

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
MCP Server +12 pts — deployment.mode + probe verdict on the mcp/ manifest, not the pointer; an unprobed slug falls back to authorship
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 19.0 — up to +16.2 composite points
Access Clarity scores 21.1 — up to +15.8 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/valyuu/apis.yml: open an issue on github.com/api-evangelist/valyuu 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
Electronics Recycling & Circular Economy (e-waste, battery value chain, circularity networks)	undeclared	-	-	-

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.

APIs 1

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

Valyuu Partner API

Partner-facing trade-in API behind Valyuu's embedded recommerce platform. Version 1 exposes device catalog lookups (categories, brands, series, models, and model condition/attri...

Security Posture 2

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

Valyuu Authentication

apiKey · 1 scheme

SECURITY

Valyuu Domain Security

TLSv1.3 · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

Sandbox

Sandbox

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

X-MCPServerCandidate

X-MCPServerCandidate

LLMsTxt

LLMsTxt

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

DataModel

DataModel

Build 1

SDKs, sample code, and the tooling you integrate with

GitHubOrganization

GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

DomainSecurity

DomainSecurity

Authentication

Authentication

Commercial 2

Pricing, plans, and the legal terms of use

PrivacyPolicy

PrivacyPolicy

TermsOfService

TermsOfService

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: valyuu
deliveryModel:
  model: saas
  license_evidence:
    not_product:
    - valyuu/partner-api-frontend-demo
  open_source: unknown
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: low
  source:
  - pricing
  - repository-not-product
  generated: '2026-09-25'
  method: derived
accessModel:
  pricing: unknown
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/valyuu.png
name: Valyuu
description: Valyuu is an Amsterdam-founded embedded recommerce service provider offering a plug-and-play trade-in platform
  that businesses integrate to buy back, resell, and recycle used consumer electronics such as smartphones, tablets, and smartwatches
  across Dutch, German, and English-language markets. Its partner-facing Trade-In API powers embedded trade-in flows covering
  device catalogs, condition questions, offers, payments, and shipping. Valyuu is a Techstars portfolio company; as of mid-2026
  valyuu.com redirects to prioont.com, whose storefront is currently unreachable.
url: https://raw.githubusercontent.com/api-evangelist/valyuu/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- techstars
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 8
  pass: local-v1
created: '2026-07-17'
modified: '2026-07-21'
tags:
- Company
- Recommerce
- Trade-In
- Circular Economy
- Consumer Electronics
- Sustainability
- E-Commerce
tags_raw:
- Company
- Recommerce
- Trade-In
- Circular Economy
- Consumer Electronics
- Sustainability
- eCommerce
apis:
- name: Valyuu Partner API
  description: Partner-facing trade-in API behind Valyuu's embedded recommerce platform. Version 1 exposes device catalog
    lookups (categories, brands, series, models, and model condition/attribute questions), FAQ content, trade-in order creation
    and cancellation, item offer confirmation (accept, decline-recycle, decline-return), shipping labels, and paperless shipping
    codes, authenticated with an X-Api-Key header. Documented via a Swagger endpoint referenced by Valyuu's public frontend
    demo repository; the documented staging base URL was unreachable (HTTP 522) when probed on 2026-07-21.
  image: https://kinlane-productions2.s3.us-east-1.amazonaws.com/apis-json-icon.png
  humanURL: https://github.com/Valyuu/partner-api-frontend-demo
  baseURL: https://api-staging.valyuu.tech/partner
  tags:
  - Trade-In
  - Recommerce
  - Consumer Electronics
  properties:
  - type: SourceCode
    url: https://github.com/Valyuu/partner-api-frontend-demo
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: DomainSecurity
  url: security/valyuu-domain-security.yml
- type: Website
  url: https://valyuu.com/
- type: GitHubOrganization
  url: https://github.com/Valyuu
- type: PrivacyPolicy
  url: https://15q6umhquujjvdoy.public.blob.vercel-storage.com/privacy-policy/(EN)%20Privacy%20policy-SCHnPlBo0ZIC7CyGhWHgpLjRIeEVLE.pdf
- type: TermsOfService
  url: https://15q6umhquujjvdoy.public.blob.vercel-storage.com/selling-t%26c/(EN)%20Selling%20Terms%20and%20Conditions_Valyuu%20-LdMQiilaDa887YNj0BWw2XEGmYgLmK.pdf
- type: WellKnown
  url: well-known/valyuu-well-known.yml
- type: X-MCPServerCandidate
  url: mcp/valyuu-mcp.yml
  note: 'Renamed from MCPServer 2026-09-03 (roadmap#247): the manifest self-describes as status: candidate — a tool list derived
    from the published API contracts, not an existing server. The scorer already read the manifest and reported mcp_server
    correctly; the MCPServer type was crediting the artifact-type surfaces with a server that does not exist.'
- type: LLMsTxt
  url: llms/valyuu-llms.txt
- type: Authentication
  url: authentication/valyuu-authentication.yml
- type: Lifecycle
  url: lifecycle/valyuu-lifecycle.yml
- type: DataModel
  url: data-model/valyuu-data-model.yml
- type: Sandbox
  url: sandbox/valyuu-sandbox.yml

Valyuu API — frequently asked questions

Does Valyuu have an API?

Yes. APIs.io lists 1 API from Valyuu, including Valyuu Partner API.

How do I authenticate with the Valyuu API?

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

Is the Valyuu API ready for AI agents?

Valyuu has a Kin Score of 16.4 out of 100 (emerging) and an Agent Readiness score of 2.5 (human-only), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

Call it yourself

curl for this page

This provider

curl "https://apis.io/api/v1/providers/valyuu"

All providers

curl "https://apis.io/api/v1/providers?limit=25"

Every operation they expose

curl "https://apis.io/api/v1/providers/valyuu/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/valyuu/evidence"

Calls without X-API-Key need no key. Calls with it need a paid plan — get a key.

Get an API key

Free tier, no form to fill in. Signing in shares your email address with us — we store it to create your key and to recognise you if you sign in with another provider. See our Privacy Policy and Terms.

GitHub Google LinkedIn

A second provider on the same verified email joins the account you already have.