Takes a main recording and an intro and/or outro file and returns one episode
Takes a main recording and an intro and/or outro file and returns one episode: intro, main part, outro, joined with short crossfades, every part brought to the same loudness first and the result normalised to the target. The measured start of the main part in the new file is returned, because every chapter mark and transcript time of the original shifts by that amount. Output as MP3, Opus, WAV or FLAC inline, max 8 MB. Billing per started minute of the main recording.
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/intro-outro
| Category | Everything else |
|---|---|
| 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 | $0.003 | 1403 ms |
Example input (from the provider)
{
"body": {
"crossfade_seconds": 1,
"duration_minutes": 1,
"intro": {
"url": "https://medien.halowerk.com/beispiel/musik.mp3"
},
"source": {
"url": "https://medien.halowerk.com/beispiel/notiz.mp3"
}
},
"bodyType": "json",
"method": "POST",
"type": "http"
}
Promised output schema (from the provider)
{
"$schema": "https://json-schema.org/draft/2020-12/schema",
"properties": {
"input": {
"additionalProperties": false,
"properties": {
"body": {
"additionalProperties": false,
"properties": {
"crossfade_seconds": {
"default": 0.8,
"maximum": 3,
"minimum": 0,
"type": "number"
},
"duration_minutes": {
"description": "Length of the main recording in started minutes.",
"maximum": 60,
"minimum": 1,
"type": "integer"
},
"intro": {
"additionalProperties": false,
"properties": {
"content_base64": {
"maxLength": 4000000,
"type": "string"
},
"filename": {
"maxLength": 260,
"type": "string"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"type": "object"
},
"output_format": {
"default": "mp3",
"enum": [
"opus",
"mp3",
"wav",
"flac"
],
"type": "string"
},
"outro": {
"additionalProperties": false,
"properties": {
"content_base64": {
"maxLength": 4000000,
"type": "string"
},
"filename": {
"maxLength": 260,
"type": "string"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"type": "object"
},
"source": {
"additionalProperties": false,
"properties": {
"content_base64": {
"maxLength": 8000000,
"type": "string"
},
"filename": {
"maxLength": 260,
"type": "string"
},
"url": {
"maxLength": 2048,
"type": "string"
}
},
"type": "object"
},
"target_lufs": {
"default": -16,
"maximum": -12,
"minimum": -24,
"type": "number"
}
},
"required": [
"source",
"duration_minutes"
],
"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"
}