Music Note Generator API

GET

Generate clean WAV audio files for any musical note.

Music Note Generator creates high-quality WAV audio files of musical notes with precise frequency generation and customizable duration.

Try it — live request, no key required

Request

GETapi.apiverve.com/v1/musicnotegenerator?note=C

Query parameters

notestring

Verification

Format

No key required to try it. Get a key to use it in your app.

Example

{
  "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
    }
  }
}

About the Music Note Generator API

Generates 16-bit WAV files with smooth ADSR envelopes and provides downloadable audio with automatic expiration handling.

What people use it for

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

Ways to call it

One endpoint, many ways in — REST with JSON, XML, YAML and CSV, plus GraphQL and an MCP interface for AI agents.

JSON: Default REST response
XML: Markup format
YAML: Human-readable
CSV: Tabular export
GraphQL: Query language
MCP: For AI agents

View all integrations →

Other ways to use Music Note Generator

Same data, same APIVerve account, same credit balance — one key works on all of them.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.on VerveKit

Questions.

Common questions about the Music Note Generator API.

Read the docs →

What notes and accidentals does the generator support?

You can generate any standard musical note from A through G, including sharps and flats. Setting the octave integer allows you to produce the exact pitch needed for your arrangement or exercise.

What audio format does the generator return?

Every generated tone is delivered as a 16-bit WAV file shaped with smooth ADSR envelopes. The response includes a secure download link where you can retrieve the rendered sound file.

Can I set custom note durations on the Free plan?

No, customizing note duration and receiving the exact frequency in Hertz requires a paid plan. Starter and higher plans unlock the duration parameter in seconds alongside the generated frequency field.

How long do the generated audio download links stay active?

Audio URLs are temporary and include an expiration timestamp in the API response. You should retrieve and store the WAV file in your own storage or cache before that link expires.

What would generating 10,000 musical notes a month cost me?

Generating 10,000 notes consumes 20,000 credits, using one-tenth of the Starter plan's 200,000 monthly credits for $29.99. That works out to about $0.30 per 1,000 notes, or $0.0003 per file. The Free plan provides 100 note calls each month for development.

Request parameters — GET /v1/musicnotegenerator

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them. Anything not listed here is dropped rather than passed through.

Required

Parameter	Type	Example	Description
`note`Required	string	`C`	Musical note (A-G with optional # or b) `AA#AbBBbCC#D`+9

Optional

Parameter	Type	Example	Description
`octave`Optional	integer	`4`	Octave number default 4 · range 0-8
`duration`OptionalPremium	number	`1`	Duration in seconds default 1 · range 0.1-10

Example request

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curl "https://api.apiverve.com/v1/musicnotegenerator?note=C&octave=4&duration=1.0" \
  -H "x-api-key: YOUR_API_KEY"

Authentication

Send your key in the x-api-key header. That is the only auth step — no token exchange, and no per-endpoint scope to configure.

Header	When	Value
`x-api-key`Required	Every request	Your API key. Header names are case-insensitive, so `X-API-Key` is the same header.
`Authorization`Alternate	Instead of the above	`Bearer <key>` — for clients that only expose bearer auth. Resolves to the same account and the same billing.

401 is the only auth verdict

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.

Response — GET /v1/musicnotegenerator

Every APIVerve endpoint returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape.

Sample response

{
  "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
`frequency`Premium	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-com…`
`duration`	string	`"1.00s"`	Duration in seconds of the audio file
`sampleRate`	string	`"44100Hz"`
`bitDepth`	string	`"16-bit"`
`expires`	number	`1765925810991`

Response headers

Every response carries your balance, so your own code always knows where it stands without polling anything. All four are exposed to browsers through CORS.

Header	What it carries
`x-api-remaining-credits`	Credits left in the current cycle
`x-api-credits-used`	Credits spent in the current cycle
`x-api-max-credits`	The allowance for the cycle
`x-api-version`	Version of the endpoint that answered

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change.

Status	Meaning	What to do
`400`	Input was rejected	Read `error`; it names the parameter that has to change.
`401`	Key missing or invalid	Check the header name and the key value.
`403`	Key valid, but not permitted here	A key restriction or an IP allow-list — never a bad key.
`429`	Rate limited, or out of credits	Read `error` to tell them apart, then back off or top up.

What a call costs — 2 credits per call

Credits are shared across every APIVerve API — one balance, one key, one bill. Failed requests never count against it, so a rejected input costs nothing.

Plan	Per month	Credits	Music Note Generator calls	Per 1,000 calls
Free	Free	200	100	Free
Starter	$29.99	200,000	100,000	$0.30
Pro	$99.99	1,000,000	500,000	$0.20
Mega	$299.99	4,000,000	2,000,000	$0.15

Calls are what the credits buy at this API's rate — spend them here, on any of the other APIs, or across both. Nothing is reserved per endpoint.

Compare all pricing tiers →

Call it from cURL — GET /v1/musicnotegenerator

No SDK to install — this is a plain HTTPS call to /v1/musicnotegenerator with your key in the x-api-key header. Swap in a real key and it runs as-is.

cURL

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curl "https://api.apiverve.com/v1/musicnotegenerator" \
  -H "x-api-key: YOUR_API_KEY"

Resources

GitHubapiverve/musicnotegenerator-apiSource, issues and the examples this page is built from.ReferenceMusic Note Generator API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/musicnotegeneratornpm APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Node.js — GET /v1/musicnotegenerator

Install the Node.js SDK, then call the Music Note Generator API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — npm

npm install @apiverve/musicnotegenerator

Node.js

const res = await fetch("https://api.apiverve.com/v1/musicnotegenerator", {
  headers: { "x-api-key": "YOUR_API_KEY" },
});
const { data } = await res.json();
console.log(data);

Resources

npm@apiverve/musicnotegeneratorThe published Node.js client, versioned and signed.GitHubapiverve/musicnotegenerator-apiSource, issues and the examples this page is built from.ReferenceMusic Note Generator API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Python — GET /v1/musicnotegenerator

No SDK to install — this is a plain HTTPS call to /v1/musicnotegenerator with your key in the x-api-key header. Swap in a real key and it runs as-is.

Python

import requests

res = requests.get(
    "https://api.apiverve.com/v1/musicnotegenerator",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

Also published for

@apiverve/musicnotegeneratornpm APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from C# / .NET — GET /v1/musicnotegenerator

Install the C# / .NET SDK, then call the Music Note Generator API with your key. The client wraps the same HTTPS request, so anything it returns is what the endpoint returns.

Install — NuGet

dotnet add package APIVerve.API.MusicNoteGenerator

C# / .NET

using var client = new HttpClient();
client.DefaultRequestHeaders.Add("x-api-key", "YOUR_API_KEY");

var json = await client.GetStringAsync("https://api.apiverve.com/v1/musicnotegenerator");
Console.WriteLine(json);

Resources

NuGetAPIVerve.API.MusicNoteGeneratorThe published C# / .NET client, versioned and signed.GitHubapiverve/musicnotegenerator-apiSource, issues and the examples this page is built from.ReferenceMusic Note Generator API docsEvery parameter, every response field, and the errors.ParametersWhat this call acceptsRequired and optional inputs, with example values.

Also published for

@apiverve/musicnotegeneratornpm

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Go — GET /v1/musicnotegenerator

No SDK to install — this is a plain HTTPS call to /v1/musicnotegenerator with your key in the x-api-key header. Swap in a real key and it runs as-is.

req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/musicnotegenerator", nil)
req.Header.Set("x-api-key", "YOUR_API_KEY")

res, _ := http.DefaultClient.Do(req)
defer res.Body.Close()
body, _ := io.ReadAll(res.Body)
fmt.Println(string(body))

Resources

Also published for

@apiverve/musicnotegeneratornpm APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from PHP — GET /v1/musicnotegenerator

No SDK to install — this is a plain HTTPS call to /v1/musicnotegenerator with your key in the x-api-key header. Swap in a real key and it runs as-is.

PHP

$ch = curl_init("https://api.apiverve.com/v1/musicnotegenerator");
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-api-key: YOUR_API_KEY"]);

$response = curl_exec($ch);
echo $response;

Resources

Also published for

@apiverve/musicnotegeneratornpm APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

Call it from Ruby — GET /v1/musicnotegenerator

No SDK to install — this is a plain HTTPS call to /v1/musicnotegenerator with your key in the x-api-key header. Swap in a real key and it runs as-is.

Ruby

require "net/http"

uri = URI("https://api.apiverve.com/v1/musicnotegenerator")
req = Net::HTTP::Get.new(uri)
req["x-api-key"] = "YOUR_API_KEY"

res = Net::HTTP.start(uri.hostname, uri.port, use_ssl: true) { |h| h.request(req) }
puts res.body

Resources

Also published for

@apiverve/musicnotegeneratornpm APIVerve.API.MusicNoteGeneratorNuGet

Only the languages APIVerve ships a client for are listed — the rest call the endpoint directly over HTTPS.

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Music Note Generator API

Try it — live request, no key required

About the Music Note Generator API

What people use it for

Ways to call it

Other ways to use Music Note Generator

Questions.

Request parameters — GET /v1/musicnotegenerator

Required

Optional

Authentication

Response — GET /v1/musicnotegenerator

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — GET /v1/musicnotegenerator

Resources

Also published for

Call it from Node.js — GET /v1/musicnotegenerator

Resources

Also published for

Call it from Python — GET /v1/musicnotegenerator

Resources

Also published for

Call it from C# / .NET — GET /v1/musicnotegenerator

Resources

Also published for

Call it from Go — GET /v1/musicnotegenerator

Resources

Also published for

Call it from PHP — GET /v1/musicnotegenerator

Resources

Also published for

Call it from Ruby — GET /v1/musicnotegenerator

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Music Note Generator API

Entertainment

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