Google Cloud Storage

Object storage service offering high durability, availability, and scalability for storing and accessing data on Google Cloud Platform.

Google Cloud Storage publishes 5 APIs on the APIs.io network, including BucketAccessControls API, Buckets API, DefaultObjectAccessControls API, and 2 more. Tagged areas include Archival, Backup, Blob Storage, Cloud Storage, and Data.

The Google Cloud Storage catalog on APIs.io includes 2 JSON-LD contexts and 2 Spectral governance rulesets.

Google Cloud Storage’s developer surface includes authentication, getting-started guide, developer console, engineering blog, changelog, API reference, CLI, and 12 more developer resources.

🌐 Visit website 📡 Source on GitHub

62.5/100 strong ▬ flat Agent 41/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessFreemiumSelf serve⚡ Free to try

6 APIs 7 Features 4 Use Cases

ArchivalBackupBlob StorageCloud StorageDataFile StorageGoogle CloudObject StorageStorage

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 62.5/100 · strong

Contract Quality 18.5 / 25

Developer Ergonomics 10.9 / 20

Commercial Clarity 9.5 / 20

Operational Transparency 8.2 / 13

Governance 8.3 / 12

Discoverability 7.2 / 10

Agent readiness — 41/100 · agent ready

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 8 / 8

Request/Response Examples 7 / 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/gcp-cloud-storage: 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 6

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

Rate Limits 1

Documented rate limits and quota policies.

Gcp Cloud Storage Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Gcp Cloud Storage Finops

FINOPS

Features 7

Notable capabilities this provider offers.

Multi-Regional Storage

Store data across multiple regions for high availability and low-latency access worldwide.

Object Lifecycle Management

Automatically transition objects between storage classes or delete them based on configurable rules.

Versioning

Maintain multiple versions of objects for data protection and recovery.

Fine-Grained Access Control

Control access using IAM policies, ACLs, and signed URLs for secure data sharing.

Object Composition

Compose multiple objects into a single object without downloading and re-uploading data.

Change Notifications

Watch for changes to objects in a bucket and receive push notifications.

Retention Policies

Lock retention policies to prevent object deletion for regulatory compliance.

Scroll for all 7

JSON Schema 12

Standalone JSON Schema definitions for this provider's data models.

Scroll for all 12

JSON Structure 11

JSON Structure definitions describing this provider's data shapes.

Scroll for all 11

Examples 11

Example request and response payloads for these APIs.

Scroll for all 11

Scopes 1

OAuth scopes governing access to this provider's APIs.

Gcp Cloud Storage Scopes

5 scopes · authorizationCode

5 scopes

SCOPES

Agentic Access 1

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

Gcp Cloud Storage Agentic Access

38 operations · 26 acting · 13 human-in-the-loop

38 operations · 26 acting

AGENTIC

Use Cases 4

What developers build with this provider.

Data Lake Storage

Store structured and unstructured data at scale for analytics and machine learning pipelines.

Backup and Disaster Recovery

Store backups with configurable retention and cross-region replication for business continuity.

Static Website Hosting

Serve static web content directly from Cloud Storage buckets with custom domains.

Media Content Delivery

Store and serve media assets with CDN integration for low-latency content delivery.

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Console

Console

Documentation 1

Reference material describing how the API behaves

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

SpectralRules

SpectralRules

Vocabulary

Vocabulary

Build 4

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

SDKs

SDKs

CLI

CLI

Access & Security 6

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Security

Compliance

Operate 1

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

Company 1

The organization behind the API

Blog

Blog

Other 1

Properties that don't map to a standard resource type

BestPractices

BestPractices

Source (apis.yml)

name: Google Cloud Storage
description: Object storage service offering high durability, availability, and scalability for storing and accessing data
  on Google Cloud Platform.
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://cloud.google.com/images/social-icon-google-cloud-1200-630.png
url: https://cloud.google.com/storage
created: '2024-01-01'
modified: '2026-05-19'
tags:
- Archival
- Backup
- Blob Storage
- Cloud Storage
- Data
- File Storage
- Google Cloud
- Object Storage
- Storage
apis:
- name: Google Cloud Storage XML API
  description: Amazon S3-compatible XML API for Google Cloud Storage.
  image: https://cloud.google.com/images/storage/storage-icon.svg
  humanURL: https://cloud.google.com/storage/docs/xml-api
  baseURL: https://storage.googleapis.com
  tags:
  - S3 Compatible
  - XML
  - Interoperability
  properties:
  - type: Documentation
    url: https://cloud.google.com/storage/docs/xml-api/overview
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication/hmackeys
  - type: APIReference
    url: https://cloud.google.com/storage/docs/xml-api/reference-methods
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: TermsOfService
    url: https://cloud.google.com/terms
  contact:
  - type: Support
    url: https://cloud.google.com/storage/docs/getting-support
- aid: gcp-cloud-storage:gcp-cloud-storage-bucketaccesscontrols-api
  name: Google Cloud Storage BucketAccessControls API
  description: Operations for managing bucket-level access control lists
  humanURL: https://cloud.google.com/storage/docs/json_api
  baseURL: https://storage.googleapis.com/storage/v1
  tags:
  - BucketAccessControls
  properties:
  - type: OpenAPI
    url: openapi/gcp-cloud-storage-bucketaccesscontrols-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage/docs/json_api
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: StatusPage
    url: https://status.cloud.google.com/
  - type: TermsOfService
    url: https://cloud.google.com/terms
  - type: APIReference
    url: https://cloud.google.com/storage/docs/json_api/v1
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-channel-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-compose-request-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-error-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-policy-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-rewrite-response-schema.json
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-context.jsonld
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-json-context.jsonld
- aid: gcp-cloud-storage:gcp-cloud-storage-buckets-api
  name: Google Cloud Storage Buckets API
  description: Operations for managing Cloud Storage buckets
  humanURL: https://cloud.google.com/storage/docs/json_api
  baseURL: https://storage.googleapis.com/storage/v1
  tags:
  - Buckets
  properties:
  - type: OpenAPI
    url: openapi/gcp-cloud-storage-buckets-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage/docs/json_api
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: StatusPage
    url: https://status.cloud.google.com/
  - type: TermsOfService
    url: https://cloud.google.com/terms
  - type: APIReference
    url: https://cloud.google.com/storage/docs/json_api/v1
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-channel-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-compose-request-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-error-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-policy-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-rewrite-response-schema.json
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-context.jsonld
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-json-context.jsonld
- aid: gcp-cloud-storage:gcp-cloud-storage-defaultobjectaccesscontrols-api
  name: Google Cloud Storage DefaultObjectAccessControls API
  description: Operations for managing default object access controls on buckets
  humanURL: https://cloud.google.com/storage/docs/json_api
  baseURL: https://storage.googleapis.com/storage/v1
  tags:
  - DefaultObjectAccessControls
  properties:
  - type: OpenAPI
    url: openapi/gcp-cloud-storage-defaultobjectaccesscontrols-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage/docs/json_api
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: StatusPage
    url: https://status.cloud.google.com/
  - type: TermsOfService
    url: https://cloud.google.com/terms
  - type: APIReference
    url: https://cloud.google.com/storage/docs/json_api/v1
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-channel-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-compose-request-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-error-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-policy-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-rewrite-response-schema.json
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-context.jsonld
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-json-context.jsonld
- aid: gcp-cloud-storage:gcp-cloud-storage-objectaccesscontrols-api
  name: Google Cloud Storage ObjectAccessControls API
  description: Operations for managing object-level access control lists
  humanURL: https://cloud.google.com/storage/docs/json_api
  baseURL: https://storage.googleapis.com/storage/v1
  tags:
  - ObjectAccessControls
  properties:
  - type: OpenAPI
    url: openapi/gcp-cloud-storage-objectaccesscontrols-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage/docs/json_api
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: StatusPage
    url: https://status.cloud.google.com/
  - type: TermsOfService
    url: https://cloud.google.com/terms
  - type: APIReference
    url: https://cloud.google.com/storage/docs/json_api/v1
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-channel-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-compose-request-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-error-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-policy-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-rewrite-response-schema.json
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-context.jsonld
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-json-context.jsonld
- aid: gcp-cloud-storage:gcp-cloud-storage-objects-api
  name: Google Cloud Storage Objects API
  description: Operations for managing objects within Cloud Storage buckets
  humanURL: https://cloud.google.com/storage/docs/json_api
  baseURL: https://storage.googleapis.com/storage/v1
  tags:
  - Objects
  properties:
  - type: OpenAPI
    url: openapi/gcp-cloud-storage-objects-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/storage/docs/json_api
  - type: Authentication
    url: https://cloud.google.com/storage/docs/authentication
  - type: Pricing
    url: https://cloud.google.com/storage/pricing
  - type: RateLimits
    url: https://cloud.google.com/storage/quotas
  - type: StatusPage
    url: https://status.cloud.google.com/
  - type: TermsOfService
    url: https://cloud.google.com/terms
  - type: APIReference
    url: https://cloud.google.com/storage/docs/json_api/v1
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-bucket-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-channel-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-compose-request-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-error-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-access-control-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-list-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-object-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-policy-schema.json
  - type: JSONSchema
    url: json-schema/gcp-cloud-storage-json-rewrite-response-schema.json
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-context.jsonld
  - type: JSONLD
    url: json-ld/gcp-cloud-storage-json-context.jsonld
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-cloud-storage/overview
- type: AgenticAccess
  url: agentic-access/gcp-cloud-storage-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/gcp-cloud-storage-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/gcp-cloud-storage-domain-security.yml
- type: Authentication
  url: authentication/gcp-cloud-storage-authentication.yml
- type: OAuthScopes
  url: scopes/gcp-cloud-storage-scopes.yml
- type: GitHubOrganization
  url: https://github.com/GoogleCloudPlatform
- type: GettingStarted
  url: https://cloud.google.com/storage/docs/quickstarts
- type: SDKs
  url: https://cloud.google.com/storage/docs/reference/libraries
- type: Console
  url: https://console.cloud.google.com/storage
- type: Blog
  url: https://cloud.google.com/blog/products/storage-data-transfer
- type: ChangeLog
  url: https://cloud.google.com/storage/docs/release-notes
- type: BestPractices
  url: https://cloud.google.com/storage/docs/best-practices
- type: Security
  url: https://cloud.google.com/storage/docs/security
- type: Compliance
  url: https://cloud.google.com/security/compliance
- type: APIReference
  url: https://cloud.google.com/storage/docs/apis
- type: CLI
  url: https://cloud.google.com/storage/docs/discover-object-storage-gsutil
- type: SpectralRules
  url: rules/gcp-cloud-storage-spectral-rules.yml
- type: Vocabulary
  url: vocabulary/gcp-cloud-storage-vocabulary.yaml
- type: Features
  data:
  - name: Multi-Regional Storage
    description: Store data across multiple regions for high availability and low-latency access worldwide.
  - name: Object Lifecycle Management
    description: Automatically transition objects between storage classes or delete them based on configurable rules.
  - name: Versioning
    description: Maintain multiple versions of objects for data protection and recovery.
  - name: Fine-Grained Access Control
    description: Control access using IAM policies, ACLs, and signed URLs for secure data sharing.
  - name: Object Composition
    description: Compose multiple objects into a single object without downloading and re-uploading data.
  - name: Change Notifications
    description: Watch for changes to objects in a bucket and receive push notifications.
  - name: Retention Policies
    description: Lock retention policies to prevent object deletion for regulatory compliance.
- type: UseCases
  data:
  - name: Data Lake Storage
    description: Store structured and unstructured data at scale for analytics and machine learning pipelines.
  - name: Backup and Disaster Recovery
    description: Store backups with configurable retention and cross-region replication for business continuity.
  - name: Static Website Hosting
    description: Serve static web content directly from Cloud Storage buckets with custom domains.
  - name: Media Content Delivery
    description: Store and serve media assets with CDN integration for low-latency content delivery.
- type: Integrations
  data:
  - name: BigQuery
    description: Load data directly from Cloud Storage into BigQuery for analytics and data warehousing.
  - name: Cloud Functions
    description: Trigger serverless functions on object creation, deletion, or metadata changes.
  - name: Dataflow
    description: Process data stored in Cloud Storage using Apache Beam pipelines.
  - name: Transfer Service
    description: Transfer data between on-premises storage, other clouds, and Cloud Storage.
  - name: Cloud CDN
    description: Cache and serve Cloud Storage content through Google's global edge network.
- type: Integrations
  url: https://cloud.google.com/marketplace
integrations:
- name: Become a Partner
maintainers:
- name: Kin Lane
  email: kin@apievangelist.com
  url: https://apievangelist.com