Zinc

Zinc provides an API that enables developers, agents, and businesses to search, purchase, track, and return products across thousands of online retailers in a single integration. The service supports automated procurement, gift messaging, and returns, and operates with a prefunded Zinc Wallet for payment.

Zinc is listed with 1 API on the APIs.io network. Tagged areas include E‑commerce API, Product Search, Order Automation, Retail Integration, and Procurement.

The Zinc catalog on APIs.io includes 1 event-driven AsyncAPI specification.

Zinc’s developer surface includes changelog, authentication, pricing, documentation, engineering blog, getting-started guide, API reference, and 18 more developer resources.

🌐 Visit website📡 Profile data on GitHub
40.4/100 developing Agent 36/100 agent ready Full breakdown ↓
scored 2026-10-31 · rubric v0.25.0 · Show this score on your site →
1 API
E‑commerce APIProduct SearchOrder AutomationRetail IntegrationProcurement

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-10-31 · rubric v0.25.0
Composite quality — 40.4/100 · developing
Contract Quality 8.3 / 21
Developer Ergonomics 8.5 / 17
Access Clarity 5.4 / 17
Operational Transparency 4.9 / 11
Contract Governance 0.5 / 10
Discoverability 5.6 / 9
Regulatory Posture 3.7 / 15
Agent readiness — 36/100 · agent ready
Machine-Readable Contract 18 / 18
Agentic Access Contract 0 / 10
Documented Reversibility 0 / 6
MCP Server 0 / 12
Machine-Readable Auth 10 / 10
Idempotency 9 / 9
Stable Error Semantics 0 / 8
Request/Response Examples 0 / 7
Rate-Limit Signaling 0 / 7
Typed Event Surface 6 / 6
Agent Skills 0 / 5
Well-Known Catalog 4 / 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 5 / 5
Registration Without a Human 6 / 6
Agentic Commerce Well-Known Document 0 / 5
Pagination 5 / 5
Distinct Operations 3 / 3
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. Kin Score badge preview for Zinc It updates itself when the score changes. Paste this where you link to your API docs: 
<a href="https://apis.io/providers/zinc-com/"><img src="https://apis.io/badge/zinc-com/card.svg" alt="Zinc 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):
  • 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
  • A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0
  • Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
  • Rate-Limit Signaling +7 pts — OpenAPI responses document X-RateLimit-* / RateLimit headers (verified), else a rate_limits artifact or RateLimits link (documented)
  • Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
6 more unmet checks in the Agent Readiness table above.
Kin Score — facets with the most composite points still available (weight × headroom):
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/zinc-com/apis.yml: open an issue on github.com/api-evangelist/zinc-com 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 →

APIs 1

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

Zinc API

Zinc lets you search, buy, and return items from top online retailers via a single API.

Event Specifications 1

AsyncAPI definitions for this provider's event-driven and streaming APIs.

Zinc Com Webhooks

ASYNCAPI

Security Posture 2

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

Zinc Com Authentication

1 scheme

SECURITY

Zinc Com Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Resources

Get Started 1

Portal, sign-up, and the first successful call

GettingStarted
GettingStarted

Documentation 2

Reference material describing how the API behaves

Documentation
Documentation
 APIReference
APIReference

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

LLMsTxt
LLMsTxt
 WellKnown
WellKnown

Design & Contract 5

Pagination, idempotency, versioning, errors, and events

Webhooks
Webhooks
 Idempotency
Idempotency
 Conventions
Conventions
 Conformance
Conformance
 Webhooks
Webhooks

Build 3

SDKs, sample code, and the tooling you integrate with

SDKs
SDKs
 Packages
Packages
 GitHubOrganization
GitHubOrganization

Access & Security 2

Authentication, authorization, and security posture

Authentication
Authentication
 DomainSecurity
DomainSecurity

Operate 3

Status, limits, changes, and where to get help

ChangeLog
ChangeLog
 StatusPage
StatusPage
 ChangeLog
ChangeLog

Commercial 3

Pricing, plans, and the legal terms of use

TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy
 Pricing
Pricing

Company 2

The organization behind the API

Blog
Blog
 Website
Website

Other 2

Properties that don't map to a standard resource type

Hosts
Hosts
 Vendors
Vendors

Source (apis.yml)

apis.yml Raw ↑ 
aid: zinc-com
name: Zinc
image: https://www.zinc.com/opengraph-image?9566a34c69128f2e
description: Zinc provides an API that enables developers, agents, and businesses to search, purchase, track, and return products
  across thousands of online retailers in a single integration. The service supports automated procurement, gift messaging,
  and returns, and operates with a prefunded Zinc Wallet for payment.
url: https://raw.githubusercontent.com/api-evangelist/zinc-com/refs/heads/main/apis.yml
x-type: company
x-source: harvest:vc-portfolio
x-tier: profiled
x-tier-reason: enrichment pass 2026-10-24 (modular-v1; was harvest)
specificationVersion: '0.20'
created: '2026-10-24'
modified: '2026-10-24'
tags:
- E‑commerce API
- Product Search
- Order Automation
- Retail Integration
- Procurement
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Webhooks
  url: asyncapi/zinc-com-webhooks.yml
- type: ChangeLog
  url: changelog/zinc-com-changelog.yml
- type: Idempotency
  url: conventions/zinc-com-conventions.yml
- type: Conventions
  url: conventions/zinc-com-conventions.yml
- type: Authentication
  url: authentication/zinc-com-authentication.yml
- type: Conformance
  url: conformance/zinc-com-conformance.yml
- type: LLMsTxt
  url: llms/zinc-com-llms.txt
- type: WellKnown
  url: well-known/zinc-com-well-known.yml
- type: Hosts
  url: hosts/zinc-com-hosts.yml
- type: Vendors
  url: vendors/zinc-com-vendors.yml
- type: SDKs
  url: packages/zinc-com-packages.yml
- type: Packages
  url: packages/zinc-com-packages.yml
- type: Webhooks
  url: https://app.zinc.com/webhooks
- type: TermsOfService
  url: https://www.zinc.com/legal/terms
- type: StatusPage
  url: https://www.zinc.com/status
- type: PrivacyPolicy
  url: https://www.zinc.com/legal/privacy
- type: Pricing
  url: https://www.zinc.com/pricing
- type: GitHubOrganization
  url: https://github.com/zincio
- type: Documentation
  url: https://www.zinc.com/docs
- type: ChangeLog
  url: https://www.zinc.com/docs/changelog
- type: Blog
  url: https://www.zinc.com/blog
- type: GettingStarted
  url: https://www.zinc.com/docs/quickstart
- type: APIReference
  url: https://www.zinc.com/developers
- type: DomainSecurity
  url: security/zinc-com-domain-security.yml
- type: Website
  url: http://zinc.com
apis:
- name: Zinc API
  description: Zinc lets you search, buy, and return items from top online retailers via a single API.
  humanURL: https://www.zinc.com/docs/v2/api-reference
  baseURL: https://api.zinc.com
  aid: zinc-com:zinc-api
x-backed-by:
- y-combinator
x-enrichment:
  date: '2026-10-24'
  status: enriched
  artifacts_added: 24
  pass: modular-v1
  engine: identity=local,contract=local,surfaces=local,docs=local,regulatory=local

Zinc API — frequently asked questions

Does Zinc have an API?

Yes. APIs.io lists 1 API from Zinc, including Zinc API.

How do I authenticate with the Zinc API?

Zinc documents its authentication (1 scheme). The details are profiled on APIs.io as Zinc Com Authentication.

Is the Zinc API ready for AI agents?

Zinc has a Kin Score of 40.4 out of 100 (developing) and an Agent Readiness score of 36.0 (agent-ready), scored by API Evangelist on 2026-10-31.

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