Speech-to-Text

AssemblyAI

standard

AssemblyAI is an reliable speech-to-text provider offering Speech Transcription, Speech Transcription, Audio Intelligence through Aweb's unified API. It features partial streaming support with standard-tier latency.

Try AssemblyAIOfficial docs

Specifications

CategorySpeech-to-Text
Auth Typeapi_key
Latency Tierstandard
Streamingpartial
Pricing Tierstandard
Reliabilitypremium
Qualitypremium
Base URLhttps://api.assemblyai.com/v2
SDK Package

Capabilities (3)

Speech Transcriptionstt.transcribe
Score: 95DEFAULT
Speech Transcriptionstt.transcribe
Score: 95DEFAULT
Audio Intelligenceaudio.intelligence
Score: 90DEFAULT

Quick start

Use AssemblyAI through Alfred's unified API — no provider-specific SDK needed.

cURL

curl -X POST https://api.alfred-ai.app/v1/execute \
  -H "Authorization: Bearer $ALFRED_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "provider": "assemblyai",
    "capability": "stt.transcribe",
    "input": { "prompt": "Hello from AssemblyAI!" }
  }'

TypeScript

import { Alfred } from '@alfred/core';

const alfred = new Alfred({ apiKey: process.env.ALFRED_API_KEY });

const result = await alfred.execute({
  provider: 'assemblyai',
  capability: 'stt.transcribe',
  input: { prompt: 'Hello from AssemblyAI!' },
});

console.log(result.output);
Getting started →API reference →All capabilities →All providers →