Google Cloud Text-To-Speech

Google Cloud Text-to-Speech converts text or Speech Synthesis Markup Language (SSML) input into audio data of natural human speech. It provides access to hundreds of voices across multiple languages and variants, powered by DeepMind's WaveNet technology and Google's neural network models.

Google Cloud Text-To-Speech publishes 2 APIs on the APIs.io network: Text:synthesize API and Voices API. Tagged areas include Audio, Google Cloud, Machine-Learning, Speech Synthesis, and Text-to-Speech.

The Google Cloud Text-To-Speech catalog on APIs.io includes 1 JSON-LD context and 1 Spectral governance ruleset.

Google Cloud Text-To-Speech’s developer surface includes developer portal, getting-started guide, documentation, authentication, pricing, support, engineering blog, and 9 more developer resources.

🌐 Visit website 📡 Source on GitHub

47.1/100 developing ▬ flat Agent 29/100 agent aware Full breakdown ↓
scored 2026-08-20 · rubric v0.12.0

AccessFreemium

2 APIs

AudioGoogle CloudMachine-LearningSpeech SynthesisText-to-Speech

Kin Score

Kin Score How this is scored →
scored 2026-08-20 · rubric v0.12.0

Composite quality — 47.1/100 · developing

Contract Quality 15.2 / 25

Developer Ergonomics 11.0 / 20

Access Clarity 9.5 / 20

Operational Transparency 3.4 / 13

Contract Governance 1.2 / 12

Discoverability 6.9 / 10

Agent readiness — 29/100 · 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

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-cloud-text-to-speech: 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.

Rate Limits 1

Documented rate limits and quota policies.

Google Cloud Text To Speech Rate Limits

5 limits

RATE LIMITS

FinOps 1

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

JSON Schema 1

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

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 1

The organization behind the API

Blog

Blog

Source (apis.yml)

aid: google-cloud-text-to-speech
name: Google Cloud Text-To-Speech
description: Google Cloud Text-to-Speech converts text or Speech Synthesis Markup Language (SSML) input into audio data of
  natural human speech. It provides access to hundreds of voices across multiple languages and variants, powered by DeepMind's
  WaveNet technology and Google's neural network models.
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-cloud-text-to-speech.png
url: https://raw.githubusercontent.com/api-evangelist/google-cloud-text-to-speech/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
tags:
- Audio
- Google Cloud
- Machine-Learning
- Speech Synthesis
- Text-to-Speech
tags_raw:
- Audio
- Google Cloud
- Machine Learning
- Speech Synthesis
- Text-To-Speech
apis:
- aid: google-cloud-text-to-speech:google-cloud-text-to-speech-text-synthesize-api
  name: Google Cloud Text-To-Speech Text:synthesize API
  description: The Text:synthesize API from Google Cloud Text-To-Speech — 1 operation(s) for text:synthesize.
  humanURL: https://cloud.google.com/text-to-speech
  baseURL: https://texttospeech.googleapis.com
  tags:
  - Text:synthesize
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-text-to-speech-text-synthesize-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/text-to-speech/docs/reference/rest
  - type: Authentication
    url: https://cloud.google.com/docs/authentication
  - type: GettingStarted
    url: https://cloud.google.com/text-to-speech/docs/quickstart-client-libraries
  - type: JSONSchema
    url: json-schema/speech-synthesis.json
  - type: JSONLD
    url: json-ld/context.jsonld
- aid: google-cloud-text-to-speech:google-cloud-text-to-speech-voices-api
  name: Google Cloud Text-To-Speech Voices API
  description: The Voices API from Google Cloud Text-To-Speech — 1 operation(s) for voices.
  humanURL: https://cloud.google.com/text-to-speech
  baseURL: https://texttospeech.googleapis.com
  tags:
  - Voices
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-text-to-speech-voices-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/text-to-speech/docs/reference/rest
  - type: Authentication
    url: https://cloud.google.com/docs/authentication
  - type: GettingStarted
    url: https://cloud.google.com/text-to-speech/docs/quickstart-client-libraries
  - type: JSONSchema
    url: json-schema/speech-synthesis.json
  - type: JSONLD
    url: json-ld/context.jsonld
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-cloud-text-to-speech/overview
- type: AgenticAccess
  url: agentic-access/google-cloud-text-to-speech-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-cloud-text-to-speech-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-cloud-text-to-speech-domain-security.yml
- type: GitHubOrganization
  url: https://github.com/GoogleCloudPlatform
- type: Portal
  url: https://cloud.google.com/text-to-speech
- type: GettingStarted
  url: https://cloud.google.com/text-to-speech/docs/quickstart-client-libraries
- type: Documentation
  url: https://cloud.google.com/text-to-speech/docs
- type: Authentication
  url: https://cloud.google.com/docs/authentication
- type: Pricing
  url: https://cloud.google.com/text-to-speech/pricing
- type: TermsOfService
  url: https://cloud.google.com/terms
- type: PrivacyPolicy
  url: https://policies.google.com/privacy
- type: StatusPage
  url: https://status.cloud.google.com/
- type: Support
  url: https://cloud.google.com/text-to-speech/docs/support
- type: JSONLD
  url: json-ld/context.jsonld
- type: Integrations
  url: https://cloud.google.com/marketplace
- url: https://cloud.google.com/feeds/tts-release-notes.xml
  type: Blog
integrations:
- name: Become a Partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Google Cloud Text-To-Speech

APIs 2

Postman Collections 2

Open Collections 4

Pricing Plans 1