Google Voice website screenshot

Google Voice

Google Voice is a telecommunications service by Google that provides call forwarding, voicemail, text messaging, and voice calling for personal and Google Workspace business accounts. While Google Voice does not offer an official standalone REST API, voice services can be managed programmatically through the Google Workspace Admin SDK for provisioning users, assigning numbers, and managing locations. Google Voice integrates with Google Workspace for enterprise telephony management.

Google Voice publishes 2 APIs on the APIs.io network: Locations API and Users API. Tagged areas include Google Voice, Messaging, Phone, Telecommunications, and Voice.

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

Google Voice’s developer surface includes developer portal, getting-started guide, documentation, authentication, pricing, support, engineering blog, and 8 more developer resources.

57.2/100 strong ▼ -5.5 Agent 31/100 agent aware Full breakdown ↓
scored 2026-07-28 · rubric v0.6
AccessFreemium
2 APIs
Google VoiceMessagingPhoneTelecommunicationsVoiceVoicemailVoIP

Kin Score

Kin Score Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6
Composite quality — 57.2/100 · strong
Contract Quality 15.5 / 25
Developer Ergonomics 10.0 / 20
Commercial Clarity 14.2 / 20
Operational Transparency 6.2 / 13
Governance 7.0 / 12
Discoverability 6.9 / 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-voice: 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 2

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

Google Voice Locations API

Manage Google Voice locations

Google Voice Users API

Manage Google Voice user assignments

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).

Google Voice API

OPEN COLLECTION

Pricing Plans 1

Published pricing tiers and plan structures.

Rate Limits 1

Documented rate limits and quota policies.

Google Voice 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 Voice Context

0 classes · 9 properties

JSON-LD

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Voice API Rules

5 rules · 3 warnings 2 info

SPECTRAL

JSON Schema 1

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

Google Voice API Schema

0 properties

JSON SCHEMA

Security Posture 2

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

Google Voice Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Voice Vulnerability Disclosure

security.txt · contact published

SECURITY

Agentic Access 1

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

Google Voice Agentic Access

3 operations

3 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 1

MCP servers, agent skills, and machine-readable catalogs

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Build 1

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 3

Pricing, plans, and the legal terms of use

Company 1

The organization behind the API

Source (apis.yml)

apis.yml Raw ↑
aid: google-voice
name: Google Voice
description: Google Voice is a telecommunications service by Google that provides call forwarding, voicemail, text messaging,
  and voice calling for personal and Google Workspace business accounts. While Google Voice does not offer an official standalone
  REST API, voice services can be managed programmatically through the Google Workspace Admin SDK for provisioning users,
  assigning numbers, and managing locations. Google Voice integrates with Google Workspace for enterprise telephony management.
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-voice.png
url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.19'
type: Index
tags:
- Google Voice
- Messaging
- Phone
- Telecommunications
- Voice
- Voicemail
- VoIP
apis:
- aid: google-voice:google-voice-locations-api
  name: Google Voice Locations API
  description: Manage Google Voice locations
  humanURL: https://voice.google.com
  baseURL: https://admin.googleapis.com
  tags:
  - Locations
  properties:
  - type: OpenAPI
    url: openapi/google-voice-locations-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/workspace/products/voice
  - type: Authentication
    url: https://developers.google.com/workspace/guides/auth-overview
  - type: GettingStarted
    url: https://support.google.com/voice/answer/115061
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/json-schema/google-voice.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/json-ld/google-voice.jsonld
- aid: google-voice:google-voice-users-api
  name: Google Voice Users API
  description: Manage Google Voice user assignments
  humanURL: https://voice.google.com
  baseURL: https://admin.googleapis.com
  tags:
  - Users
  properties:
  - type: OpenAPI
    url: openapi/google-voice-users-api-openapi.yml
  - type: Documentation
    url: https://developers.google.com/workspace/products/voice
  - type: Authentication
    url: https://developers.google.com/workspace/guides/auth-overview
  - type: GettingStarted
    url: https://support.google.com/voice/answer/115061
  - type: JSONSchema
    url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/json-schema/google-voice.json
  - type: JSONLD
    url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/json-ld/google-voice.jsonld
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-voice/overview
- type: AgenticAccess
  url: agentic-access/google-voice-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-voice-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-voice-domain-security.yml
- type: Portal
  url: https://workspace.google.com/products/voice/
- type: GettingStarted
  url: https://support.google.com/voice/answer/115061
- type: Documentation
  url: https://developers.google.com/workspace/products/voice
- type: Authentication
  url: https://developers.google.com/workspace/guides/auth-overview
- type: Pricing
  url: https://workspace.google.com/products/voice/
- type: TermsOfService
  url: https://policies.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/voice
- type: JSONLD
  url: https://raw.githubusercontent.com/api-evangelist/google-voice/refs/heads/main/json-ld/google-voice.jsonld
- type: Integrations
  url: https://workspace.google.com/integrations/
- url: https://workspaceupdates.googleblog.com/feeds/posts/default?alt=rss
  type: Blog
integrations:
- name: Gmail
- name: Drive
- name: Meet
- name: Chat
- name: Calendar
- name: Tasks
- name: Sheets
- name: Slides
- name: Forms
- name: Sites
- name: Gemini app
- name: NotebookLM
- name: Vids
- name: Keep
- name: AppSheet
- name: Google Chat integrations for Workspace.
- name: Atlassian company
- name: Tableau Software company
- name: SAP company
- name: Figma company
- name: AO Docs company
- name: PagerDuty company
- name: Miro company
- name: DocuSign company
- name: Adobe company
- name: Uber company
- name: SADA company
- name: Delfingen company
- name: Picnic company
- name: Follow us on X
- name: YouTube
- name: LinkedIn
- name: Instagram
- name: Facebook
- name: TikTok
- name: Google
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com