Speech to text for agents
Speech to text for agents: transcribe a voice note, meeting, podcast or call recording into text with timestamps, in about 100 languages with automatic language detection. Runs OpenAI Whisper (small by default, base for speed) on agentsvc.io itself, the audio is deleted after the call. Send audio_url or audio_base64 (mp3, mp4, m4a, wav, ogg, webm, flac), up to 10 minutes and 24 MB per call. Returns text, detected language, duration and segments with start and end seconds.
Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.
Endpoint
POST https://agentsvc.io/api/v1/proxy/audio-transcribe
| Category | Image and media |
|---|---|
| Provider host | agentsvc.io |
| Networks | eip155:137, eip155:42161, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp |
| Payment schemes | exact |
| Self-reported calls, 30 days | 4 from 2 payers (the provider's figure, not ours) |
Our checks, last 30 days
We never call tools that send, buy, move money or file anything, not even without paying.
Example input (from the provider)
{
"body": {
"audio_url": "https://agentsvc.io/samples/speech-en.mp3"
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"properties": {
"audio_base64": {
"description": "Audio file as base64; or use audio_url",
"type": "string"
},
"audio_url": {
"description": "Public URL of the audio file",
"type": "string"
},
"language": {
"description": "ISO 639-1 code like en or de, default auto-detect",
"type": "string"
},
"model": {
"default": "small",
"description": "small is more accurate, base about twice as fast",
"enum": [
"small",
"base"
],
"type": "string"
},
"timestamps": {
"default": true,
"description": "Include segments with start and end seconds",
"type": "boolean"
}
},
"required": []
},
"bodyType": {
"enum": [
"json",
"form-data",
"text"
],
"type": "string"
},
"method": {
"enum": [
"POST",
"PUT",
"PATCH"
],
"type": "string"
},
"type": {
"const": "http",
"type": "string"
}
},
"required": [
"type",
"method",
"bodyType",
"body"
],
"type": "object"
},
"output": {
"properties": {
"example": {
"properties": {
"data": {
"properties": {
"duration_seconds": {
"type": "number"
},
"language": {
"type": "string"
},
"language_probability": {
"type": "number"
},
"model": {
"type": "string"
},
"model_license": {
"type": "string"
},
"processing_ms": {
"type": "integer"
},
"segments": {
"items": {
"properties": {
"end": {
"type": "number"
},
"start": {
"type": "number"
},
"text": {
"type": "string"
}
},
"type": "object"
},
"type": "array"
},
"text": {
"type": "string"
}
},
"required": [
"text",
"language",
"duration_seconds"
],
"type": "object"
},
"success": {
"type": "boolean"
}
},
"required": [
"success",
"data"
],
"type": "object"
},
"type": {
"type": "string"
}
},
"required": [
"type"
],
"type": "object"
}
},
"required": [
"input"
],
"type": "object"
}