Google Gmail

The Gmail API lets you view and manage Gmail mailbox data like threads, messages, and labels. It provides RESTful access to Gmail mailboxes, supporting message sending, drafting, organizing with labels, managing settings, and push notifications for mailbox changes. The API uses OAuth 2.0 for authorization and supports both user and service account authentication for Google Workspace domains.

Google Gmail publishes 1 API on the APIs.io network: Gmail API. Tagged areas include Drafts, Email, Gmail, Google, and Google Workspace.

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

Google Gmail’s developer surface includes developer portal, getting-started guide, documentation, authentication, pricing, support, engineering blog, and 10 more developer resources.

🌐 Visit website 📡 Source on GitHub

43.6/100 developing ▬ flat Agent 20/100 agent aware saas Full breakdown ↓
scored 2026-09-08 · rubric v0.20.0

AccessFreemium

1 APIs

Drafts Email Gmail Google Google Workspace Labels Messaging Threads

Kin Score

Kin Score How this is scored →
scored 2026-09-08 · rubric v0.20.0

Composite quality — 43.6/100 · developing

Contract Quality 13.8 / 23

Developer Ergonomics 9.2 / 18

Access Clarity 6.6 / 18

Operational Transparency 3.1 / 12

Contract Governance 1.1 / 11

Discoverability 6.2 / 9

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

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.

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 github.com/api-evangelist/google-gmail: open an issue to ask a question, or submit a pull request to add artifacts. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

APIs 1

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

Google Gmail Gmail API

The Gmail API from Google Gmail — 19 operation(s) for gmail.

Postman Collections 1

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

Google Gmail API

POSTMAN

Open Collections 3

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

API Collection

OPEN COLLECTION

Google Gmail API

OPEN COLLECTION

Google Gmail API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Google Gmail Plans Pricing

3 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Gmail Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

Google Gmail Finops

FINOPS

Semantic Vocabularies 1

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

Json Ld Context

6 classes · 5 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Gmail API Rules

6 rules · 4 warnings 2 info

SPECTRAL

Security Posture 2

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

Google Gmail Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Gmail Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Google Gmail Agentic Access

29 operations · 17 acting · 1 human-in-the-loop

29 operations · 17 acting

AGENTIC

Resources

Get Started 2

Portal, sign-up, and the first successful call

Portal

Portal

GettingStarted

GettingStarted

Documentation 1

Reference material describing how the API behaves

Documentation

Documentation

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

GitHubOrganization

GitHubOrganization

Access & Security 3

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

Support

Support

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

TermsOfService

TermsOfService

PrivacyPolicy

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Source (apis.yml)

aid: google-gmail
name: Google Gmail
description: The Gmail API lets you view and manage Gmail mailbox data like threads, messages, and labels. It provides RESTful
  access to Gmail mailboxes, supporting message sending, drafting, organizing with labels, managing settings, and push notifications
  for mailbox changes. The API uses OAuth 2.0 for authorization and supports both user and service account authentication
  for Google Workspace domains.
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: 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-gmail.png
url: https://raw.githubusercontent.com/api-evangelist/google-gmail/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
tags:
- Drafts
- Email
- Gmail
- Google
- Google Workspace
- Labels
- Messaging
- Threads
apis:
- aid: google-gmail:google-gmail-gmail-api
  name: Google Gmail Gmail API
  description: The Gmail API from Google Gmail — 19 operation(s) for gmail.
  humanURL: https://developers.google.com/workspace/gmail/api/guides
  baseURL: https://gmail.googleapis.com
  tags:
  - Gmail
  properties:
  - type: OpenAPI
    url: openapi/google-gmail-gmail-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/workspace/gmail/api/reference/rest
  - type: Authentication
    url: https://developers.google.com/workspace/gmail/api/auth/about-auth
  - type: GettingStarted
    url: https://developers.google.com/workspace/gmail/api/guides
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLD
    url: json-ld/json-ld.jsonld
common:
- type: Website
  url: https://www.google.com/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-gmail/overview
- type: AgenticAccess
  url: agentic-access/google-gmail-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-gmail-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-gmail-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/googleworkspace
- type: Portal
  url: https://developers.google.com/workspace/gmail
- type: GettingStarted
  url: https://developers.google.com/workspace/gmail/api/guides
- type: Documentation
  url: https://developers.google.com/workspace/gmail/api
- type: Authentication
  url: https://developers.google.com/workspace/gmail/api/auth/about-auth
- type: Pricing
  url: https://developers.google.com/workspace/gmail/api/guides/quota
- 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://developers.google.com/workspace/gmail/api/support
- type: JSONLD
  url: json-ld/json-ld.jsonld
- url: https://blog.google/products/gmail/rss/
  type: Blog
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

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