Morse Code API

POST

Translate plain text to Morse code and decode Morse code back to text.

Morse Code converts plain text to Morse code dots and dashes and translates Morse back into text. It provides character counts, dit and dah totals, and validation status, while paid plans add downloadable audio tones.

Try it — live request, no key required

Request

POSTapi.apiverve.com/v1/morsecode

Body

textstring

Verification

Format

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

Example

{
  "status": "ok",
  "error": null,
  "data": {
    "text": "This Is A Message",
    "morse": "- .... .. ... / .. ... / .- / -- . ... ... .- --. . ",
    "stats": {
      "characters": 17,
      "dits": 25,
      "dahs": 7
    },
    "valid": true,
    "audio": {
      "audioFile": "a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav",
      "format": ".wav",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/morsecode/a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1765925804&Signature=TiktgUsHV0ipCaRwNNiEihtD5e1SacBHBwWLGvsrnLJTkH%2BH5fRsII5hxk7nEqTypya05Dg4BHTxu672tRU%2Bhb3F8g%2BQYL7u3PMaCHzcnrrpcjSh0hH7%2BWVfEyHxPf5cCuKliISePCOlpbVsU8xtFL8p1DfgTV2FeD8Rmwo3SVpCG4LHpYXJWoZVET2IbS4dZS%2Brn9kvnoBvApgDJgc5EEufOZHYLba6278g0HTgQaOIhdSNhpeSpCwPuSw6q3eK%2FGqzhD5PtzTBMPN1hMvXIZPX11EYRG%2FLbqvltu6gVgbYL5khcG5zQbDse2vXphAys8fMq7PiZSGe1ODf63Gakw%3D%3D",
      "duration": "13.20s",
      "frequency": "600Hz",
      "sampleRate": "8000Hz",
      "expires": 1765925804517
    }
  }
}

About the Morse Code API

Send text to receive dot-and-dash sequences separated by spaces and slashes, along with total counts of dits, dahs, and characters. Decoding parses Morse strings back into text and isolates any unrecognized symbols. Paid plans can generate downloadable audio tone files with duration, frequency, and sample rate metadata.

What people use it for

Ham Radio Training: Amateur radio training apps convert practice call signs and sentences into Morse strings to help students verify their manual keying.
Escape Room Puzzles: Game designers translate clue strings into dot-and-dash puzzles and count character lengths to calibrate challenge difficulty for players.
Assistive Communication Tools: Decode user input from single-switch sip-and-puff hardware into text while flagging invalid or unrecognized signal sequences immediately.
STEM Classroom Demonstrations: When teaching telecommunications history, physics teachers translate student messages into Morse code sequences to display exact dit and dah counts.

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 Morse Code

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 Google Sheets or ExcelA =VERVE() formula fills a column — no script, no export, recalculates in place.on VerveSheets Ground an agent on itA cited, machine-checkable fact your model can't produce on its own.on VerveContext

Questions.

Common questions about the Morse Code API.

Read the docs →

How many Morse code translations does the Free plan cover?

The Free plan includes 200 credits each month, which covers 100 Morse code encodings or decodings at 2 credits per call. Upgrading to the Starter plan provides 200,000 credits, covering up to 100,000 requests and working out to about $0.30 per 1,000 calls.

Can I generate Morse code audio files on the Free plan?

Audio generation is a premium feature reserved for paid plans. Upgrading to Starter or above unlocks the audio parameter and response metadata, including signed audio download URLs, audio format, tone frequency, and file duration.

Does the API support two-way translation between text and Morse code?

Yes. There are separate endpoints for encoding plain text into Morse code and decoding Morse code strings back into readable text. Both endpoints also provide character counts alongside dit and dah totals.

What format does the generated Morse code string use?

The Morse code output formats characters using dits and dahs separated by spaces, with slashes used to distinguish separate words. Both endpoints return this representation in the morse field.

How can I tell if submitted Morse code is valid?

Every response includes a valid boolean field that confirms whether the Morse code is properly formatted. If the input contains invalid patterns, this field indicates that the sequence could not be verified as valid Morse code.

Request parameters — POST /v1/morsecode

Sent as JSON in the request body. 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
`text`Required	string	`hello world`	The text to encode or decode in Morse code

Optional

Parameter	Type	Example	Description
`audio`OptionalPremium	boolean		Set to true to include an audio file of the Morse code default false

Example request

curl -X POST "https://api.apiverve.com/v1/morsecode" \
  -H "x-api-key: YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"text":"This Is A Message","audio":true}'

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.
`content-type`Required	POST body	`application/json`

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 — POST /v1/morsecode

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": {
    "text": "This Is A Message",
    "morse": "- .... .. ... / .. ... / .- / -- . ... ... .- --. . ",
    "stats": {
      "characters": 17,
      "dits": 25,
      "dahs": 7
    },
    "valid": true,
    "audio": {
      "audioFile": "a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav",
      "format": ".wav",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/morsecode/a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1765925804&Signature=TiktgUsHV0ipCaRwNNiEihtD5e1SacBHBwWLGvsrnLJTkH%2BH5fRsII5hxk7nEqTypya05Dg4BHTxu672tRU%2Bhb3F8g%2BQYL7u3PMaCHzcnrrpcjSh0hH7%2BWVfEyHxPf5cCuKliISePCOlpbVsU8xtFL8p1DfgTV2FeD8Rmwo3SVpCG4LHpYXJWoZVET2IbS4dZS%2Brn9kvnoBvApgDJgc5EEufOZHYLba6278g0HTgQaOIhdSNhpeSpCwPuSw6q3eK%2FGqzhD5PtzTBMPN1hMvXIZPX11EYRG%2FLbqvltu6gVgbYL5khcG5zQbDse2vXphAys8fMq7PiZSGe1ODf63Gakw%3D%3D",
      "duration": "13.20s",
      "frequency": "600Hz",
      "sampleRate": "8000Hz",
      "expires": 1765925804517
    }
  }
}

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
`text`	string	`"This Is A Message"`	Original input text converted to Morse code
`morse`	string	`"- .... .. ... / .. ... / .- / -- . ... ... .- --. . "`	Encoded Morse code representation with spaces and slashes
`stats`	object	`{...}`	Statistics about the Morse code encoding
`characters`	number	`17`	Total number of characters in original text
`dits`	number	`25`	Total count of dits (dots) in Morse code
`dahs`	number	`7`	Total count of dahs (dashes) in Morse code
`valid`	boolean	`true`	Whether the Morse code is valid and properly formatted
`audio`Premium	object	`{...}`	Audio file information including URL and metadata
`audioFile`Premium	string	`"a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav"`	Unique identifier for the generated audio file
`format`Premium	string	`".wav"`	Audio file format (e.g., .wav, .mp3)
`downloadURL`Premium	string	`"https://storage.googleapis.com/apiverve/APIData/morsecode/a11f9d7f-1fd2-4b10-86de-82defaf18c57.wav?GoogleAccessId=635500398038-compute%40de…`	Signed URL to download the generated audio file
`duration`Premium	string	`"13.20s"`	Duration of the audio file in seconds
`frequency`Premium	string	`"600Hz"`	Frequency of the Morse code tone in Hz
`sampleRate`Premium	string	`"8000Hz"`	Sample rate of the audio file in Hz
`expires`Premium	number	`1765925804517`	Unix timestamp when the audio download URL expires

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	Morse Code 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 — POST /v1/morsecode

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

cURL

1
2

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

Resources

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

Also published for

@apiverve/morsecodenpm APIVerve.API.MorseCodeNuGet

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

Call it from Node.js — POST /v1/morsecode

Install the Node.js SDK, then call the Morse Code 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/morsecode

Node.js

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

Resources

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

Also published for

APIVerve.API.MorseCodeNuGet

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

Call it from Python — POST /v1/morsecode

No SDK to install — this is a plain HTTPS call to /v1/morsecode 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/morsecode",
    headers={"x-api-key": "YOUR_API_KEY"},
)
print(res.json()["data"])

Resources

Also published for

@apiverve/morsecodenpm APIVerve.API.MorseCodeNuGet

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

Call it from C# / .NET — POST /v1/morsecode

Install the C# / .NET SDK, then call the Morse Code 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.MorseCode

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/morsecode");
Console.WriteLine(json);

Resources

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

Also published for

@apiverve/morsecodenpm

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

Call it from Go — POST /v1/morsecode

No SDK to install — this is a plain HTTPS call to /v1/morsecode 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/morsecode", 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/morsecodenpm APIVerve.API.MorseCodeNuGet

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

Call it from PHP — POST /v1/morsecode

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

PHP

$ch = curl_init("https://api.apiverve.com/v1/morsecode");
curl_setopt($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/morsecodenpm APIVerve.API.MorseCodeNuGet

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

Call it from Ruby — POST /v1/morsecode

No SDK to install — this is a plain HTTPS call to /v1/morsecode 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/morsecode")
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/morsecodenpm APIVerve.API.MorseCodeNuGet

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

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Morse Code API

Try it — live request, no key required

About the Morse Code API

What people use it for

Ways to call it

Other ways to use Morse Code

Questions.

Request parameters — POST /v1/morsecode

Required

Optional

Authentication

Response — POST /v1/morsecode

Response fields

Response headers

Errors

What a call costs — 2 credits per call

Call it from cURL — POST /v1/morsecode

Resources

Also published for

Call it from Node.js — POST /v1/morsecode

Resources

Also published for

Call it from Python — POST /v1/morsecode

Resources

Also published for

Call it from C# / .NET — POST /v1/morsecode

Resources

Also published for

Call it from Go — POST /v1/morsecode

Resources

Also published for

Call it from PHP — POST /v1/morsecode

Resources

Also published for

Call it from Ruby — POST /v1/morsecode

Resources

Also published for

Zero-code embed — one snippet, no backend

Changelog — Morse Code API

Data Processing

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