Vowel Counter

Overview

Perfect for linguistic research, readability analysis, and educational applications requiring detailed phonetic character analysis.

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 -X POST https://api.apiverve.com/v1/vowelcounter \
  -H "x-api-key: your_api_key_here" \
  -H "Content-Type: application/json" \
  -d '{
  "text": "The quick brown fox jumps over the lazy dog. This pangram contains every letter of the alphabet at least once."
}'

const res = await fetch('https://api.apiverve.com/v1/vowelcounter', {
  method: 'POST',
  headers: {
    'x-api-key': 'your_api_key_here',
    'Content-Type': 'application/json',
  },
  body: JSON.stringify({
  "text": "The quick brown fox jumps over the lazy dog. This pangram contains every letter of the alphabet at least once."
}),
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

import requests

res = requests.post(
    "https://api.apiverve.com/v1/vowelcounter",
    headers={"x-api-key": "your_api_key_here"},
    json={
    "text": "The quick brown fox jumps over the lazy dog. This pangram contains every letter of the alphabet at least once."
},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

package main

import (
	"fmt"
	"io"
	"net/http"
	"strings"
)

func main() {
	body := strings.NewReader(`{
  "text": "The quick brown fox jumps over the lazy dog. This pangram contains every letter of the alphabet at least once."
}`)
	req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/vowelcounter", body)
	req.Header.Set("Content-Type", "application/json")
	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.

Parameters

Sent as JSON in the request body. Premium parameters are accepted on every plan but only take effect on plans that include them.

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": {
    "vowels": 31,
    "consonants": 58,
    "totalLetters": 89,
    "vowelPercentage": 34.83,
    "consonantPercentage": 65.17,
    "vowelBreakdown": {
      "a": 8,
      "e": 11,
      "i": 3,
      "o": 7,
      "u": 2
    },
    "textLength": 110
  }
}

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.

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.

Use cases

Linguistic Analysis

Analyze vowel patterns and distributions in text for linguistic research

Readability Testing

Assess text complexity based on vowel-consonant ratios

Educational Tools

Create exercises for teaching phonetics and letter recognition

Text Statistics

Generate detailed character frequency reports for writing analysis

Other ways to use Vowel Counter

Set up Vowel Counter on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Related

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