Rev AI

aid: rev-ai
name: Rev AI
type: Index
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
url: https://raw.githubusercontent.com/api-evangelist/rev-ai/refs/heads/main/apis.yml
created: 2026-06-12
modified: 2026-06-12
specificationVersion: '0.19'
description: 'Rev AI is a speech recognition and transcription API platform from Rev.com that delivers high-accuracy AI-powered
  speech-to-text for pre-recorded audio and real-time streaming. The platform supports asynchronous batch transcription, real-time
  streaming via WebSocket, topic extraction, sentiment analysis, language identification, forced alignment, and custom vocabulary
  to improve accuracy. Rev AI uses Bearer token authentication and offers pay-as-you-go pricing starting at $0.10/hour for
  Reverb Turbo transcription, plus a free tier of 5 hours of credits for new accounts. Official SDKs are available for Python,
  Node.js, and Java through the revdotcom GitHub organization.

  '
tags:
- Speech Recognition
- Speech-to-Text
- Transcription
- Audio
- Natural Language Processing
- Streaming
- Real-Time
- Sentiment Analysis
- Topic Extraction
- Language Identification
apis:
- name: Rev AI Asynchronous Speech-to-Text API
  description: Batch transcription API for pre-recorded audio files supporting uploads up to 2 GB (multipart) or 5 TB (source
    URL), with results typically available within 15 minutes.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/asynchronous/get-started
  baseURL: https://api.rev.ai/speechtotext/v1
  tags:
  - Transcription
  - Asynchronous
  - Batch
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/asynchronous/get-started
- name: Rev AI Streaming Speech-to-Text API
  description: Real-time speech transcription via WebSocket connections supporting up to 10 concurrent streams with a 3-hour
    time limit per stream.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/streaming
  baseURL: wss://api.rev.ai/speechtotext/v1/stream
  tags:
  - Streaming
  - Real-Time
  - WebSocket
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/streaming
- name: Rev AI Topic Extraction API
  description: Extracts key topics and insights from transcripts generated by the Rev AI speech-to-text pipeline.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/topic-extraction
  baseURL: https://api.rev.ai/topic_extraction/v1
  tags:
  - Topic Extraction
  - NLP
  - Analytics
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/topic-extraction
- name: Rev AI Sentiment Analysis API
  description: Provides sentiment insights for transcripts, priced at $0.0008 per 10 words analyzed.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/sentiment-analysis
  baseURL: https://api.rev.ai/sentiment_analysis/v1
  tags:
  - Sentiment Analysis
  - NLP
  - Analytics
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/sentiment-analysis
- name: Rev AI Language Identification API
  description: Detects the spoken language of audio input, priced at $0.003 per minute.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/language-identification
  baseURL: https://api.rev.ai/languageid/v1
  tags:
  - Language Identification
  - NLP
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/language-identification
- name: Rev AI Forced Alignment API
  description: Aligns existing transcripts with audio for precise word-level timestamps, priced at $0.003 per minute.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/forced-alignment
  baseURL: https://api.rev.ai/alignment/v1
  tags:
  - Forced Alignment
  - Audio
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/forced-alignment
- name: Rev AI Custom Vocabulary API
  description: Allows submission of custom vocabulary lists to improve transcription accuracy for domain-specific terminology.
  image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
  humanURL: https://docs.rev.ai/api/custom-vocabulary
  baseURL: https://api.rev.ai/speechtotext/v1/vocabularies
  tags:
  - Custom Vocabulary
  - Transcription
  properties:
  - type: Documentation
    url: https://docs.rev.ai/api/custom-vocabulary
common:
- type: Website
  url: https://www.rev.ai/
- type: Documentation
  url: https://docs.rev.ai/
- type: GitHubOrganization
  url: https://github.com/revdotcom
- type: LinkedIn
  url: https://www.linkedin.com/company/rev-com
- type: Blog
  url: https://www.rev.com/blog
- type: Pricing
  url: https://www.rev.ai/pricing
- type: StatusPage
  url: https://status.rev.ai/
- type: Plans
  url: plans/rev-ai-plans-pricing.yml
- type: RateLimits
  url: rate-limits/rev-ai-rate-limits.yml
- type: FinOps
  url: finops/rev-ai-finops.yml
- type: BlogFeed
  url: blogs/blogs.json
- type: JSONLDContext
  url: json-ld/rev-ai-context.jsonld
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com