Overview
Generates 16-bit WAV files with smooth ADSR envelopes and provides downloadable audio with automatic expiration handling.
Endpoint
One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.
curl "https://api.apiverve.com/v1/musicnotegenerator?note=C&octave=4&duration=1" \
-H "x-api-key: your_api_key_here"const res = await fetch('https://api.apiverve.com/v1/musicnotegenerator?note=C&octave=4&duration=1', {
headers: { 'x-api-key': 'your_api_key_here' },
});
if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);
const { data } = await res.json();
console.log(data);import requests
res = requests.get(
"https://api.apiverve.com/v1/musicnotegenerator?note=C&octave=4&duration=1",
headers={"x-api-key": "your_api_key_here"},
timeout=15,
)
res.raise_for_status()
print(res.json()["data"])package main
import (
"fmt"
"io"
"net/http"
)
func main() {
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/musicnotegenerator?note=C&octave=4&duration=1", nil)
req.Header.Set("x-api-key", "your_api_key_here")
res, err := http.DefaultClient.Do(req)
if err != nil {
panic(err)
}
defer res.Body.Close()
out, _ := io.ReadAll(res.Body)
fmt.Println(string(out))
}Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.
Authentication
Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.
A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.
Parameters
Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.
| Parameter | Type | Description |
|---|---|---|
noteRequired | string | Musical note (A-G with optional # or b)AA#AbBBbCC#D+9 |
octaveOptional | integer | Octave number default 4 · range 0–8 |
durationOptionalPremium | number | Duration in seconds default 1 · range 0.1–10 |
Response
Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.
{
"status": "ok",
"error": null,
"data": {
"note": "C",
"octave": 4,
"frequency": 261.63,
"duration": 1,
"audio": {
"audioFile": "72510463-6388-4588-8e08-5714f20f9c67.wav",
"format": ".wav",
"downloadURL": "https://storage.googleapis.com/apiverve/APIData/musicnotegenerator/72510463-6388-4588-8e08-5714f20f9c67.wav?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1765925810&Signature=djWUb%2B8QmrAZLTEDiPAIB%2Bx7w7OYyJiClHTcPtkIvvtlKT01z%2FxJMMjUMvUHTx0aRpF94Oq5jdFKBqw2NPKOaEQPNIeF%2BukRt3cS5chrLI3ynvnLobkz4%2FrTGXW8r2BE42oWGMC1xjTJpdU5IMQjhEmWDMRPWzJo5sy6ZQAll5US9DtSVl7Tc2wyHCZRlxcTxlOLPCWv9SZ6Mn8i4kSXITWwp2FaR%2BEdJOi6bpRYkBBmWvnLlAiNFTm44v5QKm7dwXpAAyoidJ4%2Bo%2B2OErXHJ%2BTDMiLwFHZAc4Bt4slYTX5henGIt752fCoj2%2FOaLWSXp%2BnJNFkvKdKxVpDH40y%2FqA%3D%3D",
"duration": "1.00s",
"sampleRate": "44100Hz",
"bitDepth": "16-bit",
"expires": 1765925810991
}
}
}Response fields
Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.
| Field | Type | Example | Description |
|---|---|---|---|
note | string | "C" | Musical note that was generated |
octave | number | 4 | Octave number used for generation |
frequencyPremium | number | 261.63 | Frequency in Hz of the generated note |
duration | number | 1 | Duration in seconds of the audio file |
audio | object | {...} | The rendered tone, with its download URL and expiry |
audioFile | string | "72510463-6388-4588-8e08-5714f20f9c67.wav" | |
format | string | ".wav" | |
downloadURL | string | "https://storage.googleapis.com/apiverve/APIData/musicnotegenerator/72510463-6388-4588-8e08-5714f20f9c67.wav?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1765925810&Signature=djWUb%2B8QmrAZLTEDiPAIB%2Bx7w7OYyJiClHTcPtkIvvtlKT01z%2FxJMMjUMvUHTx0aRpF94Oq5jdFKBqw2NPKOaEQPNIeF%2BukRt3cS5chrLI3ynvnLobkz4%2FrTGXW8r2BE42oWGMC1xjTJpdU5IMQjhEmWDMRPWzJo5sy6ZQAll5US9DtSVl7Tc2wyHCZRlxcTxlOLPCWv9SZ6Mn8i4kSXITWwp2FaR%2BEdJOi6bpRYkBBmWvnLlAiNFTm44v5QKm7dwXpAAyoidJ4%2Bo%2B2OErXHJ%2BTDMiLwFHZAc4Bt4slYTX5henGIt752fCoj2%2FOaLWSXp%2BnJNFkvKdKxVpDH40y%2FqA%3D%3D" | |
duration | string | "1.00s" | Duration in seconds of the audio file |
sampleRate | string | "44100Hz" | |
bitDepth | string | "16-bit" | |
expires | number | 1765925810991 |
Errors
Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.
| Status | Meaning | What to do |
|---|---|---|
400 | Input was rejected | Read error; it names the parameter. |
401 | Key missing or invalid | Check the header name and the key value. |
403 | Key valid, but not permitted | A key restriction or IP allow-list; see key scoping. |
429 | Rate limited, or out of credits | Read error to tell them apart; see rate limits. |
Use cases
- Music Education
- Generate musical notes for educational applications and learning tools
- Audio Synthesis
- Create synthesized musical tones for composition and experimentation
- Game Development
- Generate musical notes for game sound effects and interactive audio
- Audio Testing
- Generate reference tones for audio testing and calibration
Other ways to use Music Note Generator
Set up Music Note Generator on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.
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