aid: rev-ai
name: Rev AI
type: Index
image: https://kinlane-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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-productions.s3.amazonaws.com/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: BlogFeeds
    url: blogs/blogs.json
  - type: JSONLDContext
    url: json-ld/rev-ai-context.jsonld

maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com