Gladia

Gladia is an AI audio infrastructure platform that offers speech-to-text transcription via both REST and WebSocket APIs, supporting asynchronous pre-recorded audio processing and real-time live transcription. The platform provides speaker diarization, automatic language detection across 100+ languages, word-level timestamps, and audio intelligence features powered by large language models. Authentication uses an API key passed via the x-gladia-key HTTP header against the base URL https://api.gladia.io/v2/. Gladia offers a free tier with 10 hours per month, metered paid plans starting at $0.61/hour for async and $0.75/hour for real-time, and custom enterprise pricing with zero data retention and SLA guarantees.

Gladia publishes 9 APIs on the APIs.io network, including Live (Real-time) API, AudioToText API, File Management API, and 6 more. Tagged areas include Speech-to-Text, Transcription, Audio Intelligence, Real-Time, and Speaker Diarization.

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

Gladia’s developer surface includes authentication, documentation, engineering blog, changelog, pricing, and 21 more developer resources.

🌐 Visit website 📡 Source on GitHub

57.4/100 strong ▬ flat Agent 46/100 agent ready Full breakdown ↓
scored 2026-07-28 · rubric v0.6

AccessPaidSelf serve

9 APIs

Speech-to-TextTranscriptionAudio IntelligenceReal-TimeSpeaker DiarizationTranslationWebSocketREST

Kin Score

Kin Score How this is scored →
scored 2026-07-28 · rubric v0.6

Composite quality — 57.4/100 · strong

Contract Quality 16.0 / 25

Developer Ergonomics 5.2 / 20

Commercial Clarity 11.6 / 20

Operational Transparency 8.9 / 13

Governance 8.3 / 12

Discoverability 7.4 / 10

Agent readiness — 46/100 · agent ready

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 8 / 8

Request/Response Examples 7 / 7

Rate-Limit Signaling 7 / 7

Typed Event Surface 6 / 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/gladia: 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 9

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

Rate Limits 1

Documented rate limits and quota policies.

Gladia Rate Limits

8 limits

RATE LIMITS

FinOps 1

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

JSON Schema 5

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

Examples 4

Example request and response payloads for these APIs.

AGENTIC

Resources

Documentation 7

Reference material describing how the API behaves

Documentation

OpenAPI

JSONSchema

JSONSchema

JSONSchema

JSONSchema

JSONSchema

Scroll for all 7

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

AgenticAccess

AgenticAccess

Design & Contract 2

Pagination, idempotency, versioning, errors, and events

Vocabulary

Vocabulary

JSONLDContext

JSONLDContext

Build 2

SDKs, sample code, and the tooling you integrate with

PostmanWorkspace

PostmanWorkspace

GitHubOrganization

GitHubOrganization

Access & Security 4

Authentication, authorization, and security posture

TrustCenter

TrustCenter

VulnerabilityDisclosure

VulnerabilityDisclosure

DomainSecurity

DomainSecurity

Authentication

Authentication

Operate 3

Status, limits, changes, and where to get help

ChangeLog

ChangeLog

StatusPage

StatusPage

RateLimits

RateLimits

Commercial 3

Pricing, plans, and the legal terms of use

Pricing

Pricing

Plans

Plans

FinOps

FinOps

Company 3

The organization behind the API

Website

Website

LinkedIn

Blog

Blog

Other 1

Properties that don't map to a standard resource type

Source (apis.yml)

aid: gladia
name: Gladia
type: Index
accessModel:
  pricing: paid
  onboarding: self-serve
  trial: false
  try_now: false
  public: false
  label: Paid · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/gladia.png
url: https://raw.githubusercontent.com/api-evangelist/gladia/refs/heads/main/apis.yml
created: 2026-06-12
modified: 2026-06-12
specificationVersion: '0.19'
description: 'Gladia is an AI audio infrastructure platform that offers speech-to-text transcription via both REST and WebSocket
  APIs, supporting asynchronous pre-recorded audio processing and real-time live transcription. The platform provides speaker
  diarization, automatic language detection across 100+ languages, word-level timestamps, and audio intelligence features
  powered by large language models. Authentication uses an API key passed via the x-gladia-key HTTP header against the base
  URL https://api.gladia.io/v2/. Gladia offers a free tier with 10 hours per month, metered paid plans starting at $0.61/hour
  for async and $0.75/hour for real-time, and custom enterprise pricing with zero data retention and SLA guarantees.

  '
tags:
- Speech-to-Text
- Transcription
- Audio Intelligence
- Real-Time
- Speaker Diarization
- Translation
- WebSocket
- REST
apis:
- name: Gladia Live (Real-time) API
  description: 'WebSocket API for real-time live audio transcription with sub-second latency, supporting multi-language detection,
    live speaker diarization, and streaming audio intelligence. Individual sessions are capped at 3 hours.

    '
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: wss://api.gladia.io/
  tags:
  - Speech-to-Text
  - Real-Time
  - WebSocket
  - Live Transcription
  properties:
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
  - type: AsyncAPI
    url: https://github.com/gladiaio/docs
- aid: gladia:gladia-audiototext-api
  name: Gladia AudioToText API
  description: The AudioToText API from Gladia — 1 operation(s) for audiototext.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - AudioToText
  properties:
  - type: OpenAPI
    url: openapi/gladia-audiototext-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-file-management-api
  name: Gladia File Management API
  description: The File Management API from Gladia — 1 operation(s) for file management.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - File Management
  properties:
  - type: OpenAPI
    url: openapi/gladia-file-management-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-job-history-api
  name: Gladia Job History API
  description: The Job History API from Gladia — 1 operation(s) for job history.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - Job History
  properties:
  - type: OpenAPI
    url: openapi/gladia-job-history-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-live-v2-api
  name: Gladia Live V2 API
  description: The Live V2 API from Gladia — 3 operation(s) for live v2.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - Live V2
  properties:
  - type: OpenAPI
    url: openapi/gladia-live-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-openrouter-api
  name: Gladia OpenRouter API
  description: The OpenRouter API from Gladia — 1 operation(s) for openrouter.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - OpenRouter
  properties:
  - type: OpenAPI
    url: openapi/gladia-openrouter-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-pre-recorded-v2-api
  name: Gladia Pre-recorded V2 API
  description: The Pre-recorded V2 API from Gladia — 3 operation(s) for pre-recorded v2.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - Pre-recorded V2
  properties:
  - type: OpenAPI
    url: openapi/gladia-pre-recorded-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-transcription-v1-api
  name: Gladia Transcription V1 API
  description: The Transcription V1 API from Gladia — 2 operation(s) for transcription v1.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - Transcription V1
  properties:
  - type: OpenAPI
    url: openapi/gladia-transcription-v1-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
- aid: gladia:gladia-transcription-v2-api
  name: Gladia Transcription V2 API
  description: The Transcription V2 API from Gladia — 3 operation(s) for transcription v2.
  humanURL: https://docs.gladia.io/chapters/introduction
  baseURL: https://api.gladia.io/v2/
  tags:
  - Transcription V2
  properties:
  - type: OpenAPI
    url: openapi/gladia-transcription-v2-api-openapi.yml
  - type: Documentation
    url: https://docs.gladia.io/chapters/introduction
common:
- type: PostmanWorkspace
  url: https://www.postman.com/kinlaneapi/gladia/overview
- type: AgenticAccess
  url: agentic-access/gladia-agentic-access.yml
- type: TrustCenter
  url: security/gladia-trust-center.yml
- type: VulnerabilityDisclosure
  url: security/gladia-vulnerability-disclosure.yml
- type: DomainSecurity
  url: security/gladia-domain-security.yml
- type: Authentication
  url: authentication/gladia-authentication.yml
- type: Website
  url: https://www.gladia.io/
- type: Documentation
  url: https://docs.gladia.io/
- type: GitHubOrganization
  url: https://github.com/gladiaio
- type: LinkedIn
  url: https://www.linkedin.com/company/gladia-io
- type: X
  url: https://x.com/gladia_io
- type: Blog
  url: https://www.gladia.io/blog
- type: ChangeLog
  url: https://www.gladia.io/changelog
- type: Pricing
  url: https://www.gladia.io/pricing
- type: StatusPage
  url: https://status.gladia.io/
- type: Plans
  url: plans/gladia-plans-pricing.yml
- type: RateLimits
  url: rate-limits/gladia-rate-limits.yml
- type: FinOps
  url: finops/gladia-finops.yml
- type: OpenAPI
  url: openapi/gladia-control-api-openapi.yml
- type: JSONSchema
  url: json-schema/gladia-init-transcription-request.json
- type: JSONSchema
  url: json-schema/gladia-audio-upload-response.json
- type: JSONSchema
  url: json-schema/gladia-init-pre-recorded-transcription-response.json
- type: JSONSchema
  url: json-schema/gladia-diarization-config.json
- type: JSONSchema
  url: json-schema/gladia-live-event-payload.json
- type: Vocabulary
  url: vocabulary/gladia-vocabulary.yml
- type: JSONLDContext
  url: json-ld/gladia-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com

Gladia

APIs 9

Postman Collections 8

Pricing Plans 1

Rate Limits 1

FinOps 1

Semantic Vocabularies 1

Spectral Rules 1

JSON Schema 5

Examples 4

Security Posture 4

Agentic Access 1

Documentation 7

Agent Surfaces 1

Design & Contract 2

Build 2

Access & Security 4

Operate 3

Commercial 3

Company 3

Other 1

Source (apis.yml)