Google Flutter website screenshot

Google Flutter

Google Flutter is an open-source UI toolkit for building natively compiled applications for mobile, web, and desktop from a single codebase, with developer tools including the Pub.dev package API and Dart analysis APIs.

Google Flutter publishes 2 APIs on the APIs.io network: Documentation API and Packages API. Tagged areas include Cross-Platform, Dart, Google, Mobile Development, and Open Source.

The Google Flutter catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Google Flutter’s developer surface includes developer portal, getting-started guide, documentation, authentication, support, engineering blog, and 11 more developer resources.

58.4/100 strong ▬ flat Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
3 APIs
Cross-PlatformDartGoogleMobile DevelopmentOpen SourceUI Framework

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 58.4/100 · strong
Contract Quality 15.4 / 25
Developer Ergonomics 11.3 / 20
Commercial Clarity 12.1 / 20
Operational Transparency 6.2 / 13
Governance 7.0 / 12
Discoverability 6.5 / 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-flutter: 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 3

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

Dart Analysis Server Protocol

The Dart Analysis Server provides a JSON-based protocol for IDE integration, enabling code analysis, completion, navigation, refactoring, and diagnostics for Dart and Flutter pr...

Google Flutter Documentation API

Package documentation endpoints

Google Flutter Packages API

Operations for searching and retrieving package information

Postman Collections 2

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

Open Collections 1

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

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Google Flutter Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Semantic Vocabularies 1

JSON-LD contexts and semantic vocabularies used across these APIs.

Google Flutter Context

0 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Flutter API Rules

5 rules · 4 warnings 1 info

SPECTRAL

JSON Schema 1

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

Pub.dev Package

3 properties

JSON SCHEMA

Security Posture 2

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

Google Flutter Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Flutter Vulnerability Disclosure

disclosure policy published

SECURITY

Agentic Access 1

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

Google Flutter Agentic Access

5 operations

5 operations · 0 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Documentation 1

Reference material describing how the API behaves

Agent Surfaces 2

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 2

SDKs, sample code, and the tooling you integrate with

Access & Security 3

Authentication, authorization, and security posture

Operate 2

Status, limits, changes, and where to get help

Commercial 2

Pricing, plans, and the legal terms of use

Company 2

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: google-flutter
name: Google Flutter
description: Google Flutter is an open-source UI toolkit for building natively compiled applications for mobile, web, and
  desktop from a single codebase, with developer tools including the Pub.dev package API and Dart analysis APIs.
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-flutter.png
url: https://raw.githubusercontent.com/api-evangelist/google-flutter/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.19'
type: Index
tags:
- Cross-Platform
- Dart
- Google
- Mobile Development
- Open Source
- UI Framework
apis:
- name: Dart Analysis Server Protocol
  description: The Dart Analysis Server provides a JSON-based protocol for IDE integration, enabling code analysis, completion,
    navigation, refactoring, and diagnostics for Dart and Flutter projects.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://htmlpreview.github.io/?https://github.com/dart-lang/sdk/blob/main/pkg/analysis_server/doc/api.html
  baseURL: https://localhost
  tags:
  - Code Analysis
  - IDE
  - Language Server
  properties:
  - type: Documentation
    url: https://github.com/dart-lang/sdk/blob/main/pkg/analysis_server/doc/api.html
- aid: google-flutter:google-flutter-documentation-api
  name: Google Flutter Documentation API
  description: Package documentation endpoints
  humanURL: https://pub.dev/help/api
  baseURL: https://pub.dev/api
  tags:
  - Documentation
  properties:
  - type: OpenAPI
    url: openapi/google-flutter-documentation-api-openapi.yml
  - type: Documentation
    url: https://pub.dev/help/api
  - type: Authentication
    url: https://pub.dev/help/api#authentication
  - type: GettingStarted
    url: https://docs.flutter.dev/get-started
  - type: JSONSchema
    url: json-schema/google-flutter-pub-package-schema.json
- aid: google-flutter:google-flutter-packages-api
  name: Google Flutter Packages API
  description: Operations for searching and retrieving package information
  humanURL: https://pub.dev/help/api
  baseURL: https://pub.dev/api
  tags:
  - Packages
  properties:
  - type: OpenAPI
    url: openapi/google-flutter-packages-api-openapi.yml
  - type: Documentation
    url: https://pub.dev/help/api
  - type: Authentication
    url: https://pub.dev/help/api#authentication
  - type: GettingStarted
    url: https://docs.flutter.dev/get-started
  - type: JSONSchema
    url: json-schema/google-flutter-pub-package-schema.json
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-flutter/overview
- type: AgenticAccess
  url: agentic-access/google-flutter-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-flutter-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-flutter-domain-security.yml
- type: LinkedIn
  url: https://www.linkedin.com/showcase/flutterdevofficial
- type: Portal
  url: https://flutter.dev
- type: GettingStarted
  url: https://docs.flutter.dev/get-started
- type: Documentation
  url: https://docs.flutter.dev
- type: Authentication
  url: https://pub.dev/help/api#authentication
- type: SDKs
  url: https://docs.flutter.dev/get-started/install
- type: TermsOfService
  url: https://policies.google.com/terms
- type: PrivacyPolicy
  url: https://policies.google.com/privacy
- type: StatusPage
  url: https://github.com/flutter/flutter/wiki
- type: Support
  url: https://flutter.dev/community
- type: JSONLD
  url: json-ld/google-flutter-context.jsonld
- type: Integrations
  url: https://flutter.dev/ecosystem
- type: LlmsText
  url: https://docs.flutter.dev/llms.txt
- url: https://medium.com/feed/flutter
  type: Blog
integrations:
- name: Editor support
- name: Hot reload
- name: DevTools
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com