pub.dev

The official package repository for Dart and Flutter apps, maintained by Google. Provides a REST API for searching packages, retrieving package metadata and version information, downloading package archives, and accessing publisher and scoring information.

pub.dev is listed with 1 API on the APIs.io network: Packages API. Tagged areas include Dart, Flutter, Package Registry, Package Management, and Open Source.

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

pub.dev’s developer surface includes CLI, support, documentation, and 28 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

33.8/100 thin ▲ 9.0 Agent 17/100 agent aware Front door AI 1/6 silent Heartbeat 100/100 alive open core · BSD-3-Clause Full breakdown ↓
scored 2026-11-13 · rubric v0.28.0 · Show this score on your site →

AccessFree

1 API

Dart Flutter Package Registry Package Management Open Source

Kin Score

Kin Score How this is scored →
scored 2026-11-13 · rubric v0.28.0

Composite quality — 33.8/100 · thin

Contract Quality 3.8 / 19

Developer Ergonomics 3.2 / 15

Access Clarity 3.5 / 15

Operational Transparency 2.8 / 10

Contract Governance 2.0 / 9

Discoverability 6.3 / 8

Regulatory Posture 3.7 / 15

Open Source Surface 6.5 / 10

Agent readiness — 17/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 0 / 12

Machine-Readable Auth 0 / 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 0 / 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 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.

Open Source Surface applies to this provider. This product is open source and we read its repository directly, so Open Source Surface carries 10 points of the composite. It is scored from what the repository actually publishes — a security policy, a contribution guide, a release history, a code of conduct — read live from the provider rather than inferred from our own catalog pointers. This facet adds; nothing was taken away to make room for it. An open-source project is not excused from the commercial facets, because exemption would strip it of the points it does earn. If we have the wrong repository, or this product is not open source, say so on your provider repo and we will drop the facet rather than have you publish against 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 75 points between them, because both conditional facets apply and carry 25 points together. 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 Ask about this →
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author Ask about this →
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey) Ask about this →
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) Ask about this →
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes Ask about this →
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0 Ask about this →

11 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 20.2 — up to +20.0 composite points Ask about this →
Developer Ergonomics scores 21.4 — up to +15.7 composite points Ask about this →
Access Clarity scores 23.4 — up to +15.3 composite points Ask about this →

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.

Not sure how this applies to your stack? Ask about any one item. Kin Lane reads every question, looks at your profile and your situation, and replies with what a fix would take — scoped to that one area, priced up front, yours whether you ship it or not. Ask a question →

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/pub-dev/apis.yml: open an issue on github.com/api-evangelist/pub-dev 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Raycast Store Extensions (first-party publishers + community-wrapped products)	covered	9.6 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

APIs 1

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

pub.dev Packages API

Search for packages, retrieve package metadata, version details, publisher information, and scoring data from the official Dart and Flutter package registry.

pub.dev API pricing

Not yet checked against pub.dev's own pricing page. Compiled by API Evangelist; confirm before you rely on a figure.

Plan	Price
Free	—

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Plans

1 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Rate Limits

0 limits

RATE LIMITS

Data License 1

How its data and outputs may be reused, quoted from its own terms.

pub.dev

2 quoted statements, read from pub.dev's own page on 2026-11-10.

LICENSE

FinOps 1

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

Finops

FINOPS

Semantic Vocabularies 1

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

Pub Dev Context

3 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs. Counts are the severity each rule declares, not results of running them.

pub.dev API Rules

32 rules · 30 error-severity 1 warn-severity 1 info-severity

SPECTRAL

JSON Schema 2

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

GetApiPackageNameCompletionDataResponse

1 properties

JSON SCHEMA

GetApiPackageNamesResponse

2 properties

JSON SCHEMA

Security Posture 2

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

pub.dev Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

pub.dev Vulnerability Disclosure

security.txt · contact published

SECURITY

Resources

Documentation 2

Reference material describing how the API behaves

ContributionGuide

ContributionGuide

Documentation

Documentation

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

WellKnown

WellKnown

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

Spectral

JSONLD

Vocabulary

DataModel

Conventions

Lifecycle

Conformance

Scroll for all 7

Build 4

SDKs, sample code, and the tooling you integrate with

CLI

IntegrationEdges

CodeOfConduct

GitHubRepository

Access & Security 4

Authentication, authorization, and security posture

SecurityTxt

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Security

Security

Operate 4

Status, limits, changes, and where to get help

Support

IssueTracker

Releases

Contact

Commercial 6

Pricing, plans, and the legal terms of use

Plans

FinOps

License

TermsOfService

PrivacyPolicy

DataLicense

Company 1

The organization behind the API

Website

Website

Other 2

Properties that don't map to a standard resource type

Hosts

Hosts

Feed

Feed

Source (apis.yml)

name: pub.dev
description: The official package repository for Dart and Flutter apps, maintained by Google. Provides a REST API for searching
  packages, retrieving package metadata and version information, downloading package archives, and accessing publisher and
  scoring information.
deliveryModel:
  model: open-core
  license: BSD-3-Clause
  open_source: true
  commercial: true
  callable_host: false
  label: Open core · an OSS project plus a commercial hosted product
  confidence: high
  source:
  - license
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: free
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Free
  confidence: low
  probe_state: covered
  source:
  - plans
  - security
  generated: '2026-11-13'
  method: derived
image: https://pub.dev/favicon.ico
url: https://pub.dev/
baseURL: https://pub.dev/api
tags:
- Dart
- Flutter
- Package Registry
- Package Management
- Open Source
tags_raw:
- Dart
- Flutter
- Package Registry
- Package Management
- Open Source
- Open-Source
created: '2026-06-13'
modified: '2026-09-16'
specificationVersion: '0.23'
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
common:
- type: Spectral
  url: rules/pub-dev-rules.yml
- type: JSONLD
  url: json-ld/pub-dev-context.jsonld
- type: Vocabulary
  url: vocabulary/pub-dev-vocabulary.yml
- type: DataModel
  url: data-model/pub-dev-data-model.yml
- type: CLI
  url: cli/pub-dev-cli.yml
- type: Conventions
  url: conventions/pub-dev-conventions.yml
- type: Lifecycle
  url: lifecycle/pub-dev-lifecycle.yml
- type: Conformance
  url: conformance/pub-dev-conformance.yml
- type: SecurityTxt
  url: well-known/pub-dev-security.txt
- type: WellKnown
  url: well-known/pub-dev-well-known.yml
- type: Hosts
  url: hosts/pub-dev-hosts.yml
- type: IntegrationEdges
  url: integrations/pub-dev-integration-edges.yml
- type: Support
  url: https://pub.dev/help
- type: Plans
  url: plans/plans.yml
- type: FinOps
  url: finops/finops.yml
- type: Website
  url: https://pub.dev
- type: IssueTracker
  url: https://github.com/dart-lang/pub-dev/issues
- type: Releases
  url: https://github.com/dart-lang/pub-dev/releases
- type: CodeOfConduct
  url: https://github.com/dart-lang/.github/blob/main/CODE_OF_CONDUCT.md
- type: ContributionGuide
  url: https://github.com/dart-lang/pub-dev/blob/master/CONTRIBUTING.md
- type: License
  name: BSD-3-Clause
  url: https://github.com/dart-lang/pub-dev/blob/master/LICENSE
- type: VulnerabilityDisclosure
  url: security/pub-dev-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/pub-dev-domain-security.yml
- type: Documentation
  url: https://pub.dev/help/api
- type: TermsOfService
  url: https://developers.google.com/terms/
- type: PrivacyPolicy
  url: https://www.google.com/intl/en/policies/privacy/
- type: Security
  url: https://pub.dev/security
- type: Contact
  url: mailto:support@pub.dev
- type: Feed
  url: https://pub.dev/feed.atom
- type: GitHubRepository
  url: https://github.com/dart-lang/pub-dev
- type: DataLicense
  url: data-license/pub-dev-data-license.yml
apis:
- name: pub.dev Packages API
  description: Search for packages, retrieve package metadata, version details, publisher information, and scoring data from
    the official Dart and Flutter package registry.
  image: https://pub.dev/favicon.ico
  humanURL: https://pub.dev/help/api
  baseURL: https://pub.dev/api
  tags:
  - Dart
  - Flutter
  - Packages
  - Registry
  properties:
  - type: OpenAPI
    url: openapi/_ae-authored/pub-dev-openapi-generated.yml
    x-provenance: generated
  - type: Documentation
    url: https://pub.dev/help/api
  - type: TermsOfService
    url: https://developers.google.com/terms/
  - type: PrivacyPolicy
    url: https://www.google.com/intl/en/policies/privacy/
  - type: Security
    url: https://pub.dev/security
  - type: Contact
    url: mailto:support@pub.dev
  - type: GitHubRepository
    url: https://github.com/dart-lang/pub-dev
  - type: Feed
    url: https://pub.dev/feed.atom
  - type: JSONSchema
    url: json-schema/pub-dev-get-api-package-names-response-schema.json
  - type: JSONSchema
    url: json-schema/pub-dev-get-api-package-name-completion-data-response-schema.json
  contact:
  - FN: pub.dev Support
    email: support@pub.dev
    url: https://pub.dev/help
  x-apis-io-status: active
  x-apis-io-type: public
  x-apis-io-authentication: none
  x-apis-io-plans: plans/plans.yml
  x-apis-io-rate-limits: rate-limits/rate-limits.yml
  x-apis-io-finops: finops/finops.yml
  aid: pub-dev:pub-dev-packages-api
x-enrichment:
  date: '2026-11-12'
  status: enriched
  artifacts_added: 5
  pass: local-v6
x-coverage:
  state: covered
  reason: documented-api
  detail: pub.dev documents its public package API (https://pub.dev/help/api); the contract is generated from that documentation
    (openapi/_ae-authored/). No vendor OpenAPI is published.
  evidence:
  - url: https://pub.dev/help/api
    status: 200

pub.dev API — frequently asked questions

Does pub.dev have an API?

Yes. APIs.io lists 1 API from pub.dev, including pub.dev Packages API.

Is there an OpenAPI specification for the pub.dev API?

Yes. APIs.io indexes 1 OpenAPI specification for pub.dev, each linked for download from this page.

How much does the pub.dev API cost?

APIs.io lists 1 pricing plan for pub.dev, with each plan's price, limits and inclusions under Pricing on this page.

Is the pub.dev API ready for AI agents?

pub.dev has a Kin Score of 33.8 out of 100 (thin) and an Agent Readiness score of 17.3 (agent-aware), scored by API Evangelist on 2026-11-13.

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