Google Cloud Speech-To-Text

Google Cloud Speech-to-Text API converts audio to text using advanced deep learning models, supporting over 125 languages and variants with real-time streaming and batch transcription capabilities.

Google Cloud Speech-To-Text publishes 2 API contracts indexed on the APIs.io network: Operations API and Speech API. Tagged areas include Audio Processing, Google Cloud, Machine Learning, Speech Recognition, and Transcription.

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

Google Cloud Speech-To-Text’s developer surface includes authentication, developer portal, getting-started guide, documentation, pricing, support, engineering blog, and 16 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

51.5/100 developing ▬ flat Agent 25/100 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

Audio Processing Google Cloud Machine Learning Speech Recognition Transcription

What this lets a business do 1

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

AI Model Services

AE-110

Speech

POST /speech:recognize

Kin Score

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

Composite quality — 51.5/100 · developing

Contract Quality 10.1 / 19

Developer Ergonomics 7.7 / 15

Access Clarity 10.7 / 15

Operational Transparency 3.6 / 10

Contract Governance 0.9 / 9

Discoverability 4.3 / 8

Regulatory Posture 4.9 / 15

Create-or-Update Ergonomics 0.0 / 10

Agent readiness — 25/100 · 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 6 / 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

8 more unmet checks in the Agent Readiness table above.

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

Contract Quality scores 53.6 — up to +11.6 composite points
Contract Governance scores 9.8 — up to +10.8 composite points
Developer Ergonomics scores 51.2 — up to +9.8 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-cloud-speech-to-text/apis.yml: open an issue on github.com/api-evangelist/google-cloud-speech-to-text 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 →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Speech and Voice AI	covered	34.5 (thin)	-	-

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

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 2

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

Google Cloud Speech-To-Text Operations API

Manage long-running operations

Google Cloud Speech-To-Text Speech API

Perform speech recognition on audio

Postman Collections 2

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

Google Cloud Speech-to-Text Operations API

POSTMAN

Google Cloud -to-Text Operations Speech API

POSTMAN

Open Collections 3

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

Google Cloud Speech-to-Text Operations API

OPEN COLLECTION

Google Cloud -to-Text Operations Speech API

OPEN COLLECTION

Google Cloud Speech-to-Text API

OPEN COLLECTION

Google Cloud Speech-To-Text API pricing

Prices published by Google Cloud Speech-To-Text, read 2026-10-28 from cloud.google.com/speech-to-text/pricing.

Plan	Price
V2 Standard recognition (0–500,000 min)	$0.016/ 1 minute, per 1 month/ account Includes: 0 minute to 500,000 minute
V2 Standard recognition (500,000–1,000,000 min)	$0.01/ 1 minute, per 1 month/ account Includes: 500,000 minute to 1,000,000 minute
V2 Standard recognition (1,000,000–2,000,000 min)	$0.008/ 1 minute, per 1 month/ account Includes: 1,000,000 minute to 2,000,000 minute
V2 Standard recognition (2,000,000 min and above)	$0.004/ 1 minute, per 1 month/ account Includes: 2,000,000 minute and above
Standard dynamic batch recognition	$0.003/ 1 minute, per 1 month/ account
Dynamic batch – 1 Year savings plan	$0.0027/ 1 minute, per 1 month/ account
Dynamic batch – 3 Year savings plan	$0.0024/ 1 minute, per 1 month/ account
V1 Speech Recognition (with data logging) free tier	$0.00 (Free)/ 1 minute, per 1 month/ account Includes: 0 minute to 60 minute

All 12 plans, limits and sources →

Rate limits

Free Tier Default: 10 requests per minute
Free Tier Monthly Quota: 1000 requests per month
Professional Tier Default: 100 requests per minute

Compiled by API Evangelist, not yet checked against Google Cloud Speech-To-Text's documentation. All 5 limits →

Billed by: minute · FinOps profile →

Pricing Plans 1

Published pricing tiers and plan structures.

Google Cloud Speech To Text Plans Pricing

12 plans

PLANS

Rate Limits 1

Documented rate limits and quota policies.

Google Cloud Speech To Text Rate Limits

5 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 Cloud Speech-To-Text

SLA

FinOps 1

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

Google Cloud Speech To Text Finops

FINOPS

Spectral Rules 1

Spectral governance rulesets for linting and validating these APIs.

Google Cloud Speech-To-Text — jsonschema rules

5 rules · 3 warnings 2 info

SPECTRAL

Security Posture 3

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

Google Cloud Speech To Text Authentication

oauth2 · 1 scheme

SECURITY

Google Cloud Speech To Text Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Google Cloud Speech To Text Vulnerability Disclosure

security.txt · contact published

SECURITY

Scopes 1

OAuth scopes governing access to this provider's APIs.

Google Cloud Speech To Text Scopes

1 scope · authorizationCode

1 scopes

SCOPES

Agentic Access 1

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

Google Cloud Speech To Text Agentic Access

5 operations · 3 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

JSONLDContext

JSONLDContext

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Access & Security 5

Authentication, authorization, and security posture

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

Authentication

OAuthScopes

Authentication

Operate 3

Status, limits, changes, and where to get help

RateLimits

RateLimits

StatusPage

StatusPage

Support

Support

Commercial 5

Pricing, plans, and the legal terms of use

Plans

FinOps

Pricing

TermsOfService

PrivacyPolicy

Company 2

The organization behind the API

Website

Website

Blog

Blog

Other 1

Properties that don't map to a standard resource type

CapabilityMap

CapabilityMap

Source (apis.yml)

aid: google-cloud-speech-to-text
name: Google Cloud Speech-To-Text
description: Google Cloud Speech-to-Text API converts audio to text using advanced deep learning models, supporting over 125
  languages and variants with real-time streaming and batch transcription capabilities.
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-cloud-speech-to-text.png
url: https://raw.githubusercontent.com/api-evangelist/google-cloud-speech-to-text/refs/heads/main/apis.yml
created: '2026-03-13'
modified: '2026-05-19'
specificationVersion: '0.23'
type: Index
tags:
- Audio Processing
- Google Cloud
- Machine Learning
- Speech Recognition
- Transcription
tags_raw:
- Audio Processing
- Google Cloud
- Machine Learning
- Speech Recognition
- Transcription
- Machine-Learning
apis:
- aid: google-cloud-speech-to-text:google-cloud-speech-to-text-operations-api
  name: Google Cloud Speech-To-Text Operations API
  description: Manage long-running operations
  humanURL: https://cloud.google.com/speech-to-text/docs
  baseURL: https://speech.googleapis.com/v1
  tags: []
  tags_raw:
  - Operations
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-speech-to-text-operations-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/speech-to-text/docs/reference/rest
  - type: Authentication
    url: https://cloud.google.com/docs/authentication
  - type: GettingStarted
    url: https://cloud.google.com/speech-to-text/docs/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLDContext
    url: json-ld/json-ld.yml
- aid: google-cloud-speech-to-text:google-cloud-speech-to-text-speech-api
  name: Google Cloud Speech-To-Text Speech API
  description: Perform speech recognition on audio
  humanURL: https://cloud.google.com/speech-to-text/docs
  baseURL: https://speech.googleapis.com/v1
  tags:
  - Speech
  properties:
  - type: OpenAPI
    url: openapi/google-cloud-speech-to-text-speech-api-openapi.yml
  - type: Documentation
    url: https://cloud.google.com/speech-to-text/docs/reference/rest
  - type: Authentication
    url: https://cloud.google.com/docs/authentication
  - type: GettingStarted
    url: https://cloud.google.com/speech-to-text/docs/quickstart
  - type: JSONSchema
    url: json-schema/json-schema.yml
  - type: JSONLDContext
    url: json-ld/json-ld.yml
common:
- type: CapabilityMap
  url: capabilities/google-cloud-speech-to-text-capability-edges.yml
  name: Google Cloud Speech-To-Text Business Capability Map
- type: Plans
  url: plans/google-cloud-speech-to-text-plans-pricing.yml
- type: RateLimits
  url: rate-limits/google-cloud-speech-to-text-rate-limits.yml
- type: FinOps
  url: finops/google-cloud-speech-to-text-finops.yml
- type: Website
  url: https://www.google.com/
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/google-cloud-speech-to-text/overview
- type: AgenticAccess
  url: agentic-access/google-cloud-speech-to-text-agentic-access.yml
- type: VulnerabilityDisclosure
  url: security/google-cloud-speech-to-text-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/google-cloud-speech-to-text-domain-security.yml
- type: Authentication
  url: authentication/google-cloud-speech-to-text-authentication.yml
- type: OAuthScopes
  url: scopes/google-cloud-speech-to-text-scopes.yml
- type: GitHubOrganization
  url: https://github.com/GoogleCloudPlatform
- type: Portal
  url: https://cloud.google.com/speech-to-text
- type: GettingStarted
  url: https://cloud.google.com/speech-to-text/docs/quickstart
- type: Documentation
  url: https://cloud.google.com/speech-to-text/docs
- type: Authentication
  url: https://cloud.google.com/docs/authentication
- type: Pricing
  url: https://cloud.google.com/speech-to-text/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/speech-to-text/docs/support
- type: JSONLDContext
  url: json-ld/json-ld.yml
- type: Integrations
  url: https://cloud.google.com/marketplace
- url: https://cloud.google.com/feeds/speech-release-notes.xml
  type: Blog
integrations:
- name: Become a Partner
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
x-parent: google-cloud-platform
x-relationship: product

Google Cloud Speech-To-Text API — frequently asked questions

Does Google Cloud Speech-To-Text have an API?

Yes. APIs.io lists 2 APIs from Google Cloud Speech-To-Text, including Google Cloud Speech-To-Text Operations API and Google Cloud Speech-To-Text Speech API.

Is there an OpenAPI specification for the Google Cloud Speech-To-Text API?

Yes. APIs.io indexes 2 OpenAPI specifications for Google Cloud Speech-To-Text, each linked for download from this page.

How do I authenticate with the Google Cloud Speech-To-Text API?

Google Cloud Speech-To-Text documents its authentication (oauth2 · 1 scheme). The details are profiled on APIs.io as Google Cloud Speech To Text Authentication.

How much does the Google Cloud Speech-To-Text API cost?

Google Cloud Speech-To-Text publishes its prices; its V2 Standard recognition (0–500,000 min) plan is $0.016/ 1 minute, per 1 month/ account as of 2026-10-28. APIs.io lists 12 pricing plans for Google Cloud Speech-To-Text, with each plan's price, limits and inclusions under Pricing on this page.

Is the Google Cloud Speech-To-Text API ready for AI agents?

Google Cloud Speech-To-Text has a Kin Score of 51.5 out of 100 (developing) and an Agent Readiness score of 24.6 (agent-aware), scored by API Evangelist on 2026-11-06.

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