Google Merchant Center

The Google Merchant API enables programmatic management of Merchant Center accounts including product data, inventories, promotions, reports, conversions, and order tracking. It replaces the Content API for Shopping and provides access to manage product feeds, local and regional inventory, and shopping campaign data.

Google Merchant Center publishes 5 API contracts indexed on the APIs.io network, including Accounts API, Inventories API, Products API, and 2 more. Tagged areas include E-Commerce, Google Shopping, Inventory, Merchant Center, and Product.

The Google Merchant Center catalog on APIs.io includes 2 Spectral governance rulesets.

Google Merchant Center’s developer surface includes authentication, developer portal, getting-started guide, documentation, pricing, support, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

44.3/100 developing ▬ flat Agent 25/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessSelf serve

1 published contract

E-Commerce Google Shopping InventoryMerchant CenterProduct Promotions Shopping

What this lets a business do 1

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

Pricing Management

BC-440

Promotions

POST /promotions/v1/{parent}/promotions

Kin Score

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

Composite quality — 44.3/100 · developing

Contract Quality 9.9 / 19

Developer Ergonomics 4.8 / 15

Access Clarity 7.9 / 15

Operational Transparency 3.6 / 10

Contract Governance 1.2 / 9

Discoverability 5.0 / 8

Regulatory Posture 4.8 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · 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 6 / 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 Payments 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)
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
Request/Response Examples +7 pts — share of operations carrying request/response examples; else an Examples / Code Samples link
Registration Without a Human +6 pts — a `registration_endpoint` in the served RFC 8414 / OIDC discovery document

8 more unmet checks in the Agent Readiness table above.

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

Developer Ergonomics scores 32.1 — up to +13.6 composite points
Contract Quality scores 52.7 — up to +11.8 composite points
Contract Governance scores 13.6 — up to +10.4 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/google-merchant-center/apis.yml: open an issue on github.com/api-evangelist/google-merchant-center 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 →

Standards implemented 2

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)

OAuth 2.0

measured — observed by APIs.io (declared)

APIs 5

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

Google Merchant Center Accounts API

The Accounts API from Google Merchant Center — 1 operation(s) for accounts.

Google Merchant Center Inventories API

The Inventories API from Google Merchant Center — 1 operation(s) for inventories.

Google Merchant Center Products API

The Products API from Google Merchant Center — 2 operation(s) for products.

Google Merchant Center Promotions API

The Promotions API from Google Merchant Center — 1 operation(s) for promotions.

Google Merchant Center Reports API

The Reports API from Google Merchant Center — 1 operation(s) for reports.

Postman Collections 5

Ready-to-run Postman collections for exercising this provider's APIs.

Google Merchant Center Google Merchant Accounts API

POSTMAN

Google Merchant Center Google Merchant Accounts Inventories API

POSTMAN

Google Merchant Center Google Merchant Accounts Products API

POSTMAN

Google Merchant Center Google Merchant Accounts Promotions API

POSTMAN

Google Merchant Center Google Merchant Accounts Reports API

POSTMAN

Open Collections 6

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

Google Merchant Center Google Merchant Accounts API

OPEN COLLECTION

Google Merchant Center Google Merchant Accounts Inventories API

OPEN COLLECTION

Google Merchant Center Google Merchant Accounts Products API

OPEN COLLECTION

Google Merchant Center Google Merchant Accounts Promotions API

OPEN COLLECTION

Google Merchant Center Google Merchant Accounts Reports API

OPEN COLLECTION

Google Merchant Center Google Merchant API

OPEN COLLECTION

Google Merchant Center API pricing

Prices published by Google Merchant Center, read 2026-10-28 from business.google.com/us/merchant-center/.

Plan	Price
Merchant Center	Merchant Center is a free tool Includes: Upload and manage product data; products appear across Google Search, Maps, YouTube, and more

Plan details, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Google Merchant Center's documentation. All 5 limits →

Pricing Plans 1

Published pricing tiers and plan structures.

Google Merchant Center Plans Pricing

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Merchant Center Rate Limits

5 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Google Merchant Center

SLA

FinOps 1

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

Google Merchant Center Finops

FINOPS

Spectral Rules 2

Spectral governance rulesets for linting and validating these APIs.

Google Merchant Center — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Google Merchant Center API Rules

17 rules · 10 errors 5 warnings 2 info

SPECTRAL

Security Posture 3

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

Google Merchant Center Authentication

oauth2 · 1 scheme

SECURITY

Google Merchant Center Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Merchant Center Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Google Merchant Center Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

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

Google Merchant Center Agentic Access

7 operations · 3 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

JSONLD

JSONLD

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

StatusPage

StatusPage

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: google-merchant-center
name: Google Merchant Center
description: The Google Merchant API enables programmatic management of Merchant Center accounts including product data, inventories,
  promotions, reports, conversions, and order tracking. It replaces the Content API for Shopping and provides access to manage
  product feeds, local and regional inventory, and shopping campaign data.
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: unknown
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-merchant-center.png
url: https://raw.githubusercontent.com/api-evangelist/google-merchant-center/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
tags:
- E-Commerce
- Google Shopping
- Inventory
- Merchant Center
- Product
- Promotions
- Shopping
tags_raw:
- E-Commerce
- Google Shopping
- Inventory
- Merchant Center
- Products
- Promotions
- Shopping
apis:
- aid: google-merchant-center:google-merchant-center-accounts-api
  name: Google Merchant Center Accounts API
  description: The Accounts API from Google Merchant Center — 1 operation(s) for accounts.
  humanURL: https://developers.google.com/merchant/api/overview
  baseURL: https://merchantapi.googleapis.com
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/google-merchant-center-accounts-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/merchant/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/merchant/api/guides/authentication
  - type: GettingStarted
    url: https://developers.google.com/shopping-content/guides/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.yml
- aid: google-merchant-center:google-merchant-center-inventories-api
  name: Google Merchant Center Inventories API
  description: The Inventories API from Google Merchant Center — 1 operation(s) for inventories.
  humanURL: https://developers.google.com/merchant/api/overview
  baseURL: https://merchantapi.googleapis.com
  tags:
  - Inventories
  properties:
  - type: OpenAPI
    url: openapi/google-merchant-center-inventories-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/merchant/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/merchant/api/guides/authentication
  - type: GettingStarted
    url: https://developers.google.com/shopping-content/guides/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.yml
- aid: google-merchant-center:google-merchant-center-products-api
  name: Google Merchant Center Products API
  description: The Products API from Google Merchant Center — 2 operation(s) for products.
  humanURL: https://developers.google.com/merchant/api/overview
  baseURL: https://merchantapi.googleapis.com
  tags:
  - Product
  tags_raw:
  - Products
  properties:
  - type: OpenAPI
    url: openapi/google-merchant-center-products-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/merchant/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/merchant/api/guides/authentication
  - type: GettingStarted
    url: https://developers.google.com/shopping-content/guides/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.yml
- aid: google-merchant-center:google-merchant-center-promotions-api
  name: Google Merchant Center Promotions API
  description: The Promotions API from Google Merchant Center — 1 operation(s) for promotions.
  humanURL: https://developers.google.com/merchant/api/overview
  baseURL: https://merchantapi.googleapis.com
  tags:
  - Promotions
  properties:
  - type: OpenAPI
    url: openapi/google-merchant-center-promotions-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/merchant/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/merchant/api/guides/authentication
  - type: GettingStarted
    url: https://developers.google.com/shopping-content/guides/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.yml
- aid: google-merchant-center:google-merchant-center-reports-api
  name: Google Merchant Center Reports API
  description: The Reports API from Google Merchant Center — 1 operation(s) for reports.
  humanURL: https://developers.google.com/merchant/api/overview
  baseURL: https://merchantapi.googleapis.com
  tags:
  - Reports
  properties:
  - type: OpenAPI
    url: openapi/google-merchant-center-reports-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/merchant/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/merchant/api/guides/authentication
  - type: GettingStarted
    url: https://developers.google.com/shopping-content/guides/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.yml
common:
- type: Plans
  url: plans/google-merchant-center-plans-pricing.yml
- type: RateLimits
  url: rate-limits/google-merchant-center-rate-limits.yml
- type: FinOps
  url: finops/google-merchant-center-finops.yml
- type: CapabilityMap
  url: capabilities/google-merchant-center-capability-edges.yml
  name: Google Merchant Center Business Capability Map
- type: Website
  url: https://www.google.com/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-merchant-center/overview
- type: AgenticAccess
  url: agentic-access/google-merchant-center-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-merchant-center-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-merchant-center-domain-security.yml
- type: Authentication
  url: authentication/google-merchant-center-authentication.yml
- type: OAuthScopes
  url: scopes/google-merchant-center-scopes.yml
- type: GitHubOrganization
  url: https://github.com/google
- type: Portal
  url: https://www.google.com/retail/solutions/merchant-center/
- type: GettingStarted
  url: https://developers.google.com/shopping-content/guides/quickstart
- type: Documentation
  url: https://developers.google.com/merchant/api
- type: Authentication
  url: https://developers.google.com/merchant/api/guides/authentication
- type: Pricing
  url: https://www.google.com/retail/solutions/merchant-center/
- type: TermsOfService
  url: https://developers.google.com/terms
- type: PrivacyPolicy
  url: https://policies.google.com/privacy
- type: StatusPage
  url: https://status.cloud.google.com/
- type: Support
  url: https://developers.google.com/shopping-content/guides/support
- type: JSONLD
  url: json-ld/json-ld.yml
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: google
x-relationship: product

Google Merchant Center API — frequently asked questions

Does Google Merchant Center have an API?

Yes. APIs.io lists 5 APIs from Google Merchant Center, including Google Merchant Center Accounts API, Google Merchant Center Inventories API and Google Merchant Center Products API, and 2 more.

Is there an OpenAPI specification for the Google Merchant Center API?

Yes. APIs.io indexes 5 OpenAPI specifications for Google Merchant Center, each linked for download from this page.

How do I authenticate with the Google Merchant Center API?

Google Merchant Center documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Google Merchant Center Authentication.

How much does the Google Merchant Center API cost?

Google Merchant Center publishes its prices; its Merchant Center plan is Merchant Center is a free tool as of 2026-10-28. APIs.io lists 1 pricing plan for Google Merchant Center, with each plan's price, limits and inclusions under Pricing on this page.

Is the Google Merchant Center API ready for AI agents?

Google Merchant Center has a Kin Score of 44.3 out of 100 (developing) and an Agent Readiness score of 24.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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