Google Identity Platform

Google Identity Platform provides authentication and identity management APIs that enable developers to add sign-in, user management, and multi-tenancy capabilities to applications using industry-standard protocols including OAuth 2.0, OpenID Connect, and SAML.

Google Identity Platform publishes 3 API contracts indexed on the APIs.io network, including Accounts API, and 2 more. Tagged areas include Authentication, Google Cloud, Identity, Multi-Tenancy, and OAuth.

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

Google Identity Platform’s developer surface includes authentication, getting-started guide, pricing, developer console, support, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

36.8/100 thin ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemiumSelf serve⚡ Free to try

1 published contract

Authentication Google Cloud Identity Multi-Tenancy OAuth OpenID Connect SAML Identity Federation

What this lets a business do 1

Business capabilities this provider's published APIs can perform, derived from its own contracts. Browse all capabilities →

Cybersecurity Management

BC-620

Accounts

Kin Score

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

Composite quality — 36.8/100 · thin

Contract Quality 10.2 / 19

Developer Ergonomics 5.2 / 15

Access Clarity 2.8 / 15

Operational Transparency 3.3 / 10

Contract Governance 0.9 / 9

Discoverability 5.0 / 8

Regulatory Posture 3.4 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 20/100 · agent aware

Machine-Readable Contract 18 / 18

Agentic Access Contract 10 / 10

Documented Reversibility 0 / 6

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

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 applies to this provider. This API accepts writes, so it carries 10 points of the composite. It is scored from the published contracts themselves: whether a caller can create-or-update in one call, whether the write accepts a key the caller already holds, and whether the response says which branch ran. Without that, every write needs a search-and-branch in front of it, and the first time that check is skipped a duplicate record is created. Scored against the observed mean rather than raw — a provider at the catalog average is unchanged by this facet, not penalised by it.

The six quality facets above are damped to 75 points between them, because the conditional facet above carries the other 25. 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
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)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
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

9 more unmet checks in the Agent Readiness table above.

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

Access Clarity scores 18.4 — up to +16.3 composite points
Developer Ergonomics scores 34.5 — up to +13.1 composite points
Contract Quality scores 54.2 — up to +11.5 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-identity-platform/apis.yml: open an issue on github.com/api-evangelist/google-identity-platform 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 4

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.

OAuth

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenID Connect

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

SAML

tagged — the provider's own APIs.json carries the standard as a tag; implementation not verified

OpenAPI

measured — observed by APIs.io (published)

APIs 3

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

Identity Platform Tenant Management API

The Tenant Management API enables developers to create and manage tenants for multi-tenant Identity Platform configurations. Each tenant can have its own set of identity provide...

Identity Platform OAuth Configuration API

The OAuth Configuration API allows developers to programmatically manage OAuth identity provider configurations for Identity Platform projects. It supports configuring Google, F...

Google Identity Platform Accounts API

User account operations

Open Collections 2

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

Google Identity Platform Google Identity Toolkit Accounts API

OPEN COLLECTION

Google Identity Platform Google Identity Toolkit API

OPEN COLLECTION

Google Identity Platform API pricing

Not yet checked against Google Identity Platform's own pricing page. Compiled by API Evangelist on 2026-05-05 from cloud.google.com/identity-platform/pricing; confirm before you rely on a figure. A free plan or tier is listed.

Plan	Price
No-Cost (Spark) freemium	Free
Pay As You Go (Blaze) usage-based	$0.0055 per standard MAU (50K-100K range) · $0.015 per SAML / OIDC MAU
Enterprise / Negotiated enterprise	—

Plan details, limits and sources →

Rate limits

Identity Platform API requests: see service-specific quotas page requests per minute
Phone authentication SMS sends: see service-specific quotas page requests per day
Account creation: see service-specific quotas page varies

Compiled by API Evangelist, not yet checked against Google Identity Platform's documentation. Rate-limit details →

Pricing Plans 1

Published pricing tiers and plan structures.

Google Identity Platform Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Identity Platform Rate Limits

3 limits

RATE LIMITS

Service Levels 1

Uptime the provider promises or reports, as SLA4OAI. Read from its own pages; APIs.io runs no monitors.

Google Identity Platform

SLA

FinOps 1

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

Google Identity Platform Finops

FINOPS

Semantic Vocabularies 1

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

Google Identity Platform Context

0 classes · 3 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Identity Platform — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Google Identity Platform User Record

13 properties

JSON SCHEMA

Security Posture 3

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

Google Identity Platform Authentication

apiKey · 1 scheme

SECURITY

Google Identity Platform Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Identity Platform Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Google Identity Platform Agentic Access

6 operations · 5 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

GettingStarted

GettingStarted

Console

Console

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

SDKs

SDKs

Access & Security 4

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

Support

Support

StatusPage

StatusPage

Commercial 3

Pricing, plans, and the legal terms of use

Plans

Plans

FinOps

FinOps

Pricing

Pricing

Company 1

The organization behind the API

Website

Website

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: google-identity-platform
name: Google Identity Platform
description: Google Identity Platform provides authentication and identity management APIs that enable developers to add sign-in,
  user management, and multi-tenancy capabilities to applications using industry-standard protocols including OAuth 2.0, OpenID
  Connect, and SAML.
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: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  gated: none
  gated_source:
  - onboarding
  label: Freemium · Self-serve signup
  confidence: medium
  source:
  - plans
  - authentication
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/google-identity-platform.png
url: https://raw.githubusercontent.com/api-evangelist/google-identity-platform/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-09-16'
specificationVersion: '0.23'
type: Index
tags:
- Authentication
- Google Cloud
- Identity
- Multi-Tenancy
- OAuth
- OpenID Connect
- SAML
- Identity Federation
tags_raw:
- Authentication
- Google Cloud
- Identity
- Multi-Tenancy
- OAuth
- OpenID Connect
- SAML
- Identity Federation
apis:
- name: Identity Platform Tenant Management API
  description: The Tenant Management API enables developers to create and manage tenants for multi-tenant Identity Platform
    configurations. Each tenant can have its own set of identity providers, authentication settings, and user pools, allowing
    SaaS applications to isolate authentication for different customers or organizational units.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://cloud.google.com/identity-platform/docs/multi-tenancy
  baseURL: https://identitytoolkit.googleapis.com
  tags:
  - Multi-Tenancy
  - Software-as-a-Service
  - Tenant Management
  tags_raw:
  - Multi-Tenancy
  - SaaS
  - Tenant Management
  properties:
  - type: Documentation
    url: https://cloud.google.com/identity-platform/docs/multi-tenancy
- name: Identity Platform OAuth Configuration API
  description: The OAuth Configuration API allows developers to programmatically manage OAuth identity provider configurations
    for Identity Platform projects. It supports configuring Google, Facebook, Apple, Microsoft, Twitter, GitHub, and other
    OIDC and SAML providers for federated authentication.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://cloud.google.com/identity-platform/docs/federated-login
  baseURL: https://identitytoolkit.googleapis.com
  tags:
  - Federation
  - Identity Providers
  - OAuth
  - Authentication
  tags_raw:
  - Federation
  - Identity Providers
  - OAuth
  - Authentication
  properties:
  - type: Documentation
    url: https://cloud.google.com/identity-platform/docs/reference/rest/v2/projects.defaultSupportedIdpConfigs
- aid: google-identity-platform:google-identity-platform-accounts-api
  name: Google Identity Platform Accounts API
  description: User account operations
  humanURL: https://cloud.google.com/identity-platform/docs/reference/rest
  baseURL: https://identitytoolkit.googleapis.com
  tags:
  - Account
  tags_raw:
  - Accounts
  properties:
  - type: OpenAPI
    url: openapi/google-identity-platform-accounts-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/identity-platform/docs/reference/rest
  - type: JSONSchema
    url: json-schema/google-identity-platform-user-schema.json
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-identity-platform/overview
- type: Plans
  url: plans/google-identity-platform-plans-pricing.yml
- type: RateLimits
  url: rate-limits/google-identity-platform-rate-limits.yml
- type: FinOps
  url: finops/google-identity-platform-finops.yml
- type: CapabilityMap
  url: capabilities/google-identity-platform-capability-edges.yml
  name: Google Identity Platform Business Capability Map
- type: Website
  url: https://www.google.com/
- type: AgenticAccess
  url: agentic-access/google-identity-platform-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-identity-platform-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-identity-platform-domain-security.yml
- type: Authentication
  url: authentication/google-identity-platform-authentication.yml
- type: GettingStarted
  url: https://cloud.google.com/identity-platform/docs/quickstarts
- type: Pricing
  url: https://cloud.google.com/identity-platform/pricing
- type: Authentication
  url: https://cloud.google.com/identity-platform/docs/concepts
- type: Console
  url: https://console.cloud.google.com/customer-identity
- type: SDKs
  url: https://cloud.google.com/identity-platform/docs/reference/libraries
- type: Support
  url: https://cloud.google.com/identity-platform/docs/support
- type: StatusPage
  url: https://status.cloud.google.com
- type: JSONLD
  url: json-ld/google-identity-platform-context.jsonld
- type: Integrations
  url: https://cloud.google.com/marketplace
integrations:
- name: Become a Partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: google
x-relationship: product

Google Identity Platform API — frequently asked questions

Does Google Identity Platform have an API?

Yes. APIs.io lists 3 APIs from Google Identity Platform, including Identity Platform Tenant Management API, Identity Platform OAuth Configuration API and Google Identity Platform Accounts API.

Is there an OpenAPI specification for the Google Identity Platform API?

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

How do I authenticate with the Google Identity Platform API?

Google Identity Platform uses bearer-token authentication (apiKey · 1 scheme). The details are profiled on APIs.io as Google Identity Platform Authentication.

How much does the Google Identity Platform API cost?

APIs.io lists 3 pricing plans for Google Identity Platform, with each plan's price, limits and inclusions under Pricing on this page.

Is the Google Identity Platform API ready for AI agents?

Google Identity Platform has a Kin Score of 36.8 out of 100 (thin) and an Agent Readiness score of 19.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

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