Takes a text such as a chapter, article or report of up to 20,000 characters and
Takes a text such as a chapter, article or report of up to 20,000 characters and returns it read aloud as one audio file. Lines starting with "# " become chapters; blank lines separate paragraphs, and long paragraphs are split at sentence boundaries. Every paragraph is spoken separately by a Deepgram voice of the chosen language (English, German, Spanish, French, Italian, Dutch or Japanese; automatic or by name), measured, and joined with pauses you set between paragraphs and chapters.
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://medien.halowerk.com/v1/audiobook
| Category | Image and media |
|---|---|
| Provider host | medien.halowerk.com |
| Networks | eip155:8453 |
| Payment schemes | exact |
| Self-reported calls, 30 days | 1 from 1 payers (the provider's figure, not ours) |
Our checks, last 30 days
| Day | Result | HTTP | Asked | Time |
|---|---|---|---|---|
| 2026-10-31 | valid payment request | 402 | $0.07 | 1053 ms |
Example input (from the provider)
{
"body": {
"language": "de",
"output_format": "mp3",
"text": "# Bienen\n\nBienen sammeln Nektar und Pollen. Ein gesundes Volk z\u00e4hlt im Sommer zehntausende Tiere.\n\n# Best\u00e4ubung\n\nOhne Bienen g\u00e4be es deutlich weniger \u00c4pfel, Mandeln und Beeren."
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"chapter_pause_seconds": {
"default": 1.5,
"maximum": 5,
"minimum": 0,
"type": "number"
},
"language": {
"enum": [
"en",
"de",
"es",
"fr",
"it",
"nl",
"ja"
],
"type": "string"
},
"output_format": {
"default": "opus",
"enum": [
"opus",
"mp3"
],
"type": "string"
},
"paragraph_pause_seconds": {
"default": 0.6,
"maximum": 3,
"minimum": 0,
"type": "number"
},
"text": {
"description": "Text to narrate. \"# \" starts a chapter, blank lines separate paragraphs.",
"maxLength": 20000,
"minLength": 1,
"type": "string"
},
"voice": {
"description": "Deepgram voice such as aura-2-julius-de. Omit for the first voice of the language.",
"maxLength": 60,
"type": "string"
}
},
"required": [
"text",
"language"
],
"type": "object"
},
"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"
}
},
"required": [
"input"
],
"type": "object"
}