Google Cloud API Gateway website screenshot

Google Cloud API Gateway

Google Cloud API Gateway enables you to provide secure access to your backend services through a well-defined REST API that is consistent across all of your services. It is a fully managed, pay-per-use gateway designed for serverless workloads, supporting Cloud Functions, Cloud Run, and App Engine backends. API Gateway includes security features like authentication and API key validation, as well as monitoring, logging, and tracing capabilities.

Google Cloud API Gateway publishes 1 API on the APIs.io network: Projects API. Tagged areas include API Gateway, API Management, Authentication, Google Cloud, and Security.

The Google Cloud API Gateway catalog on APIs.io includes 1 Spectral governance ruleset.

Google Cloud API Gateway’s developer surface includes developer portal, getting-started guide, documentation, authentication, pricing, support, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub
59.3/100 strong ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
1 APIs
API GatewayAPI ManagementAuthenticationGoogle CloudSecurityServerless

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 59.3/100 · strong
Contract Quality 14.4 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 6.8 / 13
Governance 7.0 / 12
Discoverability 6.9 / 10
Agent readiness — 31/100 · agent aware
Machine-Readable Contract 18 / 18
Agentic Access Contract 10 / 10
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
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/google-cloud-api-gateway: 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.

Google Cloud API Gateway Projects API

The Projects API from Google Cloud API Gateway — 5 operation(s) for projects.

Postman Collections 1

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

Google Cloud API Gateway Projects API

POSTMAN

Open Collections 1

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

Google Cloud API Gateway API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Google Cloud Api Gateway Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Cloud Api Gateway Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Google Cloud Api Gateway Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Cloud API Gateway API Rules

5 rules · 3 warnings 2 info

SPECTRAL

Security Posture 2

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

Google Cloud Api Gateway Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Cloud Api Gateway Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Google Cloud Api Gateway Agentic Access

11 operations · 6 acting

11 operations · 6 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 3

Authentication, authorization, and security posture

VulnerabilityDisclosure
VulnerabilityDisclosure
 DomainSecurity
DomainSecurity
 Authentication
Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage
StatusPage
 Support
Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing
Pricing
 TermsOfService
TermsOfService
 PrivacyPolicy
PrivacyPolicy

Company 1

The organization behind the API

Blog
Blog

Source (apis.yml)

apis.yml Raw ↑ 
aid: google-cloud-api-gateway
name: Google Cloud API Gateway
description: Google Cloud API Gateway enables you to provide secure access to your backend services through a well-defined
  REST API that is consistent across all of your services. It is a fully managed, pay-per-use gateway designed for serverless
  workloads, supporting Cloud Functions, Cloud Run, and App Engine backends. API Gateway includes security features like authentication
  and API key validation, as well as monitoring, logging, and tracing capabilities.
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: medium
  source:
  - plans
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-cloud-api-gateway.png
url: https://raw.githubusercontent.com/api-evangelist/google-cloud-api-gateway/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.19'
type: Index
tags:
- API Gateway
- API Management
- Authentication
- Google Cloud
- Security
- Serverless
apis:
- aid: google-cloud-api-gateway:google-cloud-api-gateway-projects-api
  name: Google Cloud API Gateway Projects API
  description: The Projects API from Google Cloud API Gateway — 5 operation(s) for projects.
  humanURL: https://cloud.google.com/api-gateway/docs
  baseURL: https://apigateway.googleapis.com
  tags:
  - Projects
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-api-gateway-projects-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/api-gateway/docs/reference/rest
  - type: Authentication
    url: https://cloud.google.com/api-gateway/docs/authentication-method
  - type: GettingStarted
    url: https://cloud.google.com/api-gateway/docs/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-cloud-api-gateway/overview
- type: AgenticAccess
  url: agentic-access/google-cloud-api-gateway-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-cloud-api-gateway-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-cloud-api-gateway-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/GoogleCloudPlatform
- type: Portal
  url: https://cloud.google.com/api-gateway
- type: GettingStarted
  url: https://cloud.google.com/api-gateway/docs/quickstart
- type: Documentation
  url: https://cloud.google.com/api-gateway/docs
- type: Authentication
  url: https://cloud.google.com/api-gateway/docs/authentication-method
- type: Pricing
  url: https://cloud.google.com/api-gateway/pricing
- type: TermsOfService
  url: https://cloud.google.com/terms
- type: PrivacyPolicy
  url: https://policies.google.com/privacy
- type: StatusPage
  url: https://status.cloud.google.com/
- type: Support
  url: https://cloud.google.com/api-gateway/docs/support
- type: JSONLD
  url: json-ld/json-ld.json
- type: Integrations
  url: https://cloud.google.com/marketplace
- url: https://docs.cloud.google.com/feeds/apigateway-release-notes.xml
  type: Blog
integrations:
- name: Become a Partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com