# Rev AI

**Canonical:** https://apis.io/providers/rev-ai/  
**Website:** https://www.rev.ai/  
**APIs profiled:** 7

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.

## Kin Score — 30.5 / 100 (thin)

Scored 2026-08-25 under rubric 0.14.0. Trend: flat (+0.0 from 30.5).

| Facet | Score |
|---|---|
| Discoverability | 74.1 |
| Contract Quality | 10.7 |
| Governance | 0.0 |
| Contract Governance | 0.0 |
| Operational Transparency | 50.0 |
| Developer Ergonomics | 11.9 |
| Commercial Clarity | 57.9 |
| Access Clarity | 57.9 |

## Agent readiness — 2.5 (human-only)

| Dimension | Value |
|---|---|
| Spec Presence | no |
| Agentic Access | no |
| Reversibility Documented | no |
| MCP Server | no |
| Auth Clarity | no |
| Idempotency | no |
| Error Semantics | no |
| OpenAPI Examples | no |
| Rate Limit Signal | documented |
| Event Surface Described | no |
| Agent Skills | no |
| Well Known Catalog | no |
| Consent Identity | no |
| Agent Card | no |
| Dry Run Mode | no |
| Delegated Identity | no |
| Protected Resource Metadata | no |
| Dynamic Client Registration | no |
| Agentic Commerce | no |

## Access

Freemium — onboarding: unknown, pricing: freemium, trial: no (confidence: medium).

## APIs (7)

- **Rev AI Asynchronous Speech-to-Text API** — 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.
- **Rev AI Streaming Speech-to-Text API** — Real-time speech transcription via WebSocket connections supporting up to 10 concurrent streams with a 3-hour time limit per stream.
- **Rev AI Topic Extraction API** — Extracts key topics and insights from transcripts generated by the Rev AI speech-to-text pipeline.
- **Rev AI Sentiment Analysis API** — Provides sentiment insights for transcripts, priced at $0.0008 per 10 words analyzed.
- **Rev AI Language Identification API** — Detects the spoken language of audio input, priced at $0.003 per minute.
- **Rev AI Forced Alignment API** — Aligns existing transcripts with audio for precise word-level timestamps, priced at $0.003 per minute.
- **Rev AI Custom Vocabulary API** — Allows submission of custom vocabulary lists to improve transcription accuracy for domain-specific terminology.

## Security (2)

- **Rev Ai Domain Security** — TLSv1.3 · DMARC
- **Rev Ai Trust Center** — SOC 2, HIPAA, GDPR

## Plans (1)

- **Rev Ai Plans Pricing**

## Tags

Speech Recognition, Speech-to-Text, Transcription, Audio, Natural Language Processing, Streaming, Real-Time, Sentiment Analysis, Topic Extraction, Language Identification

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/rev-ai/). Scores are computed from the provider's own public artifacts under a published rubric.