Google PageSpeed

Google PageSpeed Insights provides APIs for analyzing the performance of web pages on both mobile and desktop devices, returning performance scores, Core Web Vitals metrics, and actionable optimization recommendations powered by Lighthouse.

Google PageSpeed publishes 1 API contract indexed on the APIs.io network: Analysis API. Tagged areas include Core Web Vitals, Google, Lighthouse, Page Speed, and SEO.

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

Google PageSpeed’s developer surface includes authentication, developer portal, getting-started guide, documentation, support, developer console, API reference, and 32 more developer resources.

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50.5/100 developing ▬ flat Agent 27/100 agent aware Heartbeat 0/100 dormant saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

2 published contracts 2 Agent Skills

Core Web Vitals Google LighthousePage SpeedSEO Web Performance

Kin Score

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

Composite quality — 50.5/100 · developing

Contract Quality 12.4 / 21

Developer Ergonomics 10.8 / 17

Access Clarity 3.6 / 17

Operational Transparency 5.8 / 11

Contract Governance 1.5 / 10

Discoverability 5.6 / 9

Regulatory Posture 6.0 / 15

Agent readiness — 27/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 6 / 6

MCP Server 0 / 12

Machine-Readable Auth 10 / 10

Idempotency 9 / 9

Stable Error Semantics 8 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 0 / 6

Agent Skills 5 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 4 / 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.

Create-or-Update Ergonomics does not apply to this provider. The published contracts declare no write operations, and a read-only API cannot create-or-update. The facet is excluded from this provider's denominator entirely — not scored zero. A reference or data API is not deficient for being unable to upsert.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% 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
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
Delegated User Identity +6 pts — a served discovery document listing authorization_code in grant_types_supported (served), else an oauth2 authorizationCode flow or openIdConnect declared in an OpenAPI (documented)
Typed Event Surface +6 pts — AsyncAPI document, OR webhooks/callbacks objects in the as-published OpenAPI, OR common[].type includes Webhooks

4 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 21.1 — up to +15.8 composite points
Contract Quality scores 58.5 — up to +10.4 composite points
Contract Governance scores 14.4 — up to +10.3 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-pagespeed/apis.yml: open an issue on github.com/api-evangelist/google-pagespeed 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 1

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

Google PageSpeed Analysis API

Page performance analysis

Postman Collections 1

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

Google PageSpeed PageSpeed Insights Analysis API

POSTMAN

Open Collections 2

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

Google PageSpeed PageSpeed Insights Analysis API

OPEN COLLECTION

Google PageSpeed PageSpeed Insights API

OPEN COLLECTION

Agent Skills 2

Packaged agent skills for driving this provider's APIs from an AI assistant.

Audit a page with PageSpeed Insights

AGENT SKILL

Track Core Web Vitals across a set of pages

AGENT SKILL

Google PageSpeed API pricing

Pricing Plans 1

Published pricing tiers and plan structures.

Google Pagespeed Plans Pricing

0 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Pagespeed Rate Limits

0 limits

RATE LIMITS

FinOps 1

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

Google Pagespeed Finops

FINOPS

Semantic Vocabularies 1

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

Google Pagespeed Context

0 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google PageSpeed — jsonschema rules

6 rules · 4 warnings 2 info

SPECTRAL

OpenAPI Overlays 1

Overlays applied on top of this provider's contracts. Each card says who wrote it: a document the provider publishes, or one API Evangelist derived or generated.

Google Pagespeed Analysis Api Overlay

6 actions · documentation · google-pagespeed-analysis-api-openapi.yml

DERIVED

JSON Schema 1

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

PageSpeed Insights Result

5 properties

JSON SCHEMA

Security Posture 3

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

Google Pagespeed Authentication

apiKey/oauth2 · 2 schemes

SECURITY

Google Pagespeed Domain Security

TLSv1.3 · HSTS · DNSSEC · DMARC

SECURITY

Google Pagespeed Vulnerability Disclosure

Hackerone · security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Google Pagespeed Scopes

1 scope

1 scopes

SCOPES

Agentic Access 1

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

Google Pagespeed Agentic Access

1 operation

1 operations · 0 acting

AGENTIC

Resources

Get Started 5

Portal, sign-up, and the first successful call

Portal

GettingStarted

Console

SignUp

Sandbox

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 3

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

LLMsTxt

LLMsTxt

AgentSkill

AgentSkill

Design & Contract 7

Pagination, idempotency, versioning, errors, and events

JSONLD

Conformance

ErrorCatalog

Lifecycle

Conventions

DataModel

SpectralRules

Scroll for all 7

Build 5

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Packages

Packages

SDKs

SDKs

PostmanCollection

PostmanCollection

Access & Security 7

Authentication, authorization, and security posture

DomainSecurity

Authentication

Authentication

SecurityTxt

VulnerabilityDisclosure

VulnerabilityDisclosure

Security

Security

OAuthScopes

OAuthScopes

Scroll for all 7

Operate 5

Status, limits, changes, and where to get help

StatusPage

Support

Deprecation

ChangeLog

RateLimits

Commercial 4

Pricing, plans, and the legal terms of use

FinOps

TermsOfService

PrivacyPolicy

Plans

Company 1

The organization behind the API

Website

Website

Source (apis.yml)

aid: google-pagespeed
name: Google PageSpeed
description: Google PageSpeed Insights provides APIs for analyzing the performance of web pages on both mobile and desktop
  devices, returning performance scores, Core Web Vitals metrics, and actionable optimization recommendations powered by Lighthouse.
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: unknown
  trial: false
  try_now: false
  public: false
  label: Unknown
  confidence: low
  source:
  - authentication
  - scopes
  - rate-limits
  - security
  - sandbox
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-pagespeed.png
url: https://raw.githubusercontent.com/api-evangelist/google-pagespeed/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-08-13'
specificationVersion: '0.23'
type: Index
tags:
- Core Web Vitals
- Google
- Lighthouse
- Page Speed
- SEO
- Web Performance
apis:
- aid: google-pagespeed:google-pagespeed-analysis-api
  name: Google PageSpeed Analysis API
  description: Page performance analysis
  humanURL: https://developers.google.com/speed/docs/insights/v5/get-started
  baseURL: https://www.googleapis.com/pagespeedonline/v5
  tags:
  - Analysis
  properties:
  - type: OpenAPI
    url: openapi/google-pagespeed-analysis-api-openapi.yml
  - type: OpenAPI Discovery
    url: https://pagespeedonline.googleapis.com/$discovery/rest?version=v5
  - type: Overlay
    url: overlays/google-pagespeed-analysis-api-overlay.yaml
  - type: Documentation
    url: https://developers.google.com/speed/docs/insights/v5/reference
  - type: Authentication
    url: https://developers.google.com/speed/docs/insights/v5/get-started#APIKey
  - type: GettingStarted
    url: https://developers.google.com/speed/docs/insights/v5/get-started
  - type: JSONSchema
    url: json-schema/google-pagespeed-result-schema.json
common:
- type: FinOps
  url: finops/google-pagespeed-finops.yml
- type: Website
  url: https://www.google.com/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-pagespeed/overview
- type: AgenticAccess
  url: agentic-access/google-pagespeed-agentic-access.yml
- type: DomainSecurity
  url: security/google-pagespeed-domain-security.yml
- type: Authentication
  url: authentication/google-pagespeed-authentication.yml
- type: GitHubOrganization
  url: https://github.com/pagespeed
- type: Portal
  url: https://pagespeed.web.dev/
- type: GettingStarted
  url: https://developers.google.com/speed/docs/insights/v5/get-started
- type: Documentation
  url: https://developers.google.com/speed/docs/insights
- type: Authentication
  url: https://developers.google.com/speed/docs/insights/v5/get-started#APIKey
- 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://support.google.com/webmasters
- type: Console
  url: https://console.cloud.google.com/apis/library/pagespeedonline.googleapis.com
- type: JSONLD
  url: json-ld/google-pagespeed-context.jsonld
- type: APIReference
  url: https://developers.google.com/speed/docs/insights/v5/reference
- type: SignUp
  url: https://console.cloud.google.com/apis/credentials
- type: Packages
  url: packages/google-pagespeed-packages.yml
- type: SDKs
  url: packages/google-pagespeed-packages.yml
- type: SecurityTxt
  url: well-known/google-pagespeed-security.txt
- type: VulnerabilityDisclosure
  url: security/google-pagespeed-vulnerability-disclosure.yml
- type: Security
  url: https://g.co/vrp
- type: LLMsTxt
  url: llms/google-pagespeed-llms.txt
- type: Conformance
  url: conformance/google-pagespeed-conformance.yml
- type: ErrorCatalog
  url: errors/google-pagespeed-problem-types.yml
- type: Lifecycle
  url: lifecycle/google-pagespeed-lifecycle.yml
- type: Deprecation
  url: https://developers.google.com/speed/docs/insights/release_notes
- type: ChangeLog
  url: changelog/google-pagespeed-changelog.yml
- type: OAuthScopes
  url: scopes/google-pagespeed-scopes.yml
- type: Sandbox
  url: sandbox/google-pagespeed-sandbox.yml
- type: Conventions
  url: conventions/google-pagespeed-conventions.yml
- type: DataModel
  url: data-model/google-pagespeed-data-model.yml
- type: AgentSkill
  url: skills/_index.yml
- type: Plans
  url: plans/google-pagespeed-plans-pricing.yml
- type: RateLimits
  url: rate-limits/google-pagespeed-rate-limits.yml
- type: SpectralRules
  url: rules/google-pagespeed-jsonschema-spectral-rules.yml
- type: PostmanCollection
  url: postman/google-pagespeed-analysis-api.postman_collection.json
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-enrichment:
  date: '2026-08-13'
  status: enriched
  artifacts_added: 19
  pass: local-v1
x-parent: google
x-relationship: product

Google PageSpeed API — frequently asked questions

Does Google PageSpeed have an API?

Yes. APIs.io lists 1 API from Google PageSpeed, including Google PageSpeed Analysis API.

Is there an OpenAPI specification for the Google PageSpeed API?

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

How do I authenticate with the Google PageSpeed API?

Google PageSpeed uses bearer-token authentication (apiKey/oauth2 · 2 schemes). The details are profiled on APIs.io as Google Pagespeed Authentication.

Is the Google PageSpeed API ready for AI agents?

Google PageSpeed has a Kin Score of 50.5 out of 100 (developing) and an Agent Readiness score of 27.3 (agent-aware), scored by API Evangelist on 2026-11-06.

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