Text Language API
Text Language is a simple tool for detecting the language of a text. It returns the language code.
The Text Language API provides reliable and fast access to text language data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.
To use Text Language, you need an API key. You can get one by creating a free account and visiting your dashboard.
POST Endpoint
https://api.apiverve.com/v1/textlanguageCode Examples
Here are examples of how to call the Text Language API in different programming languages:
curl -X POST \
"https://api.apiverve.com/v1/textlanguage" \
-H "X-API-Key: your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
}'const response = await fetch('https://api.apiverve.com/v1/textlanguage', {
method: 'POST',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
})
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
payload = {
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
}
response = requests.post('https://api.apiverve.com/v1/textlanguage', headers=headers, json=payload)
data = response.json()
print(data)const https = require('https');
const url = require('url');
const options = {
method: 'POST',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
};
const postData = JSON.stringify({
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
});
const req = https.request('https://api.apiverve.com/v1/textlanguage', options, (res) => {
let data = '';
res.on('data', (chunk) => data += chunk);
res.on('end', () => console.log(JSON.parse(data)));
});
req.write(postData);
req.end();<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/textlanguage');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'POST');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'X-API-Key: your_api_key_here',
'Content-Type: application/json'
]);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode({
'text': 'Ceci est un exemple de texte. Il peut détecter la langue'
}));
$response = curl_exec($ch);
curl_close($ch);
$data = json_decode($response, true);
print_r($data);
?>package main
import (
"fmt"
"io"
"net/http"
"bytes"
"encoding/json"
)
func main() {
payload := map[string]interface{}{
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
}
jsonPayload, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/textlanguage", bytes.NewBuffer(jsonPayload))
req.Header.Set("X-API-Key", "your_api_key_here")
req.Header.Set("Content-Type", "application/json")
client := &http.Client{}
resp, err := client.Do(req)
if err != nil {
panic(err)
}
defer resp.Body.Close()
body, _ := io.ReadAll(resp.Body)
fmt.Println(string(body))
}require 'net/http'
require 'json'
uri = URI('https://api.apiverve.com/v1/textlanguage')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
payload = {
"text": "Ceci est un exemple de texte. Il peut détecter la langue"
}
request = Net::HTTP::Post.new(uri)
request['X-API-Key'] = 'your_api_key_here'
request['Content-Type'] = 'application/json'
request.body = payload.to_json
response = http.request(request)
puts JSON.pretty_generate(JSON.parse(response.body))using System;
using System.Net.Http;
using System.Text;
using System.Threading.Tasks;
class Program
{
static async Task Main(string[] args)
{
using var client = new HttpClient();
client.DefaultRequestHeaders.Add("X-API-Key", "your_api_key_here");
var jsonContent = @"{
""text"": ""Ceci est un exemple de texte. Il peut détecter la langue""
}";
var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");
var response = await client.PostAsync("https://api.apiverve.com/v1/textlanguage", content);
response.EnsureSuccessStatusCode();
var responseBody = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseBody);
}
}Authentication
The Text Language API requires authentication via API key. Include your API key in the request header:
X-API-Key: your_api_key_hereInteractive API Playground
Test the Text Language API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the Text Language API:
Detect Language
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
text | string | required | The text to detect the language of | - |
Response
The Text Language API returns responses in JSON, XML, YAML, and CSV formats:
Example Responses
{
"status": "ok",
"error": null,
"data": {
"language": "french",
"iso": "fr"
}
}<?xml version="1.0" encoding="UTF-8"?>
<response>
<status>ok</status>
<error xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
<data>
<language>french</language>
<iso>fr</iso>
</data>
</response>
status: ok
error: null
data:
language: french
iso: fr
| key | value |
|---|---|
| language | french |
| iso | fr |
Response Structure
All API responses follow a consistent structure with the following fields:
| Field | Type | Description | Example |
|---|---|---|---|
status | string | Indicates whether the request was successful ("ok") or failed ("error") | ok |
error | string | null | Contains error message if status is "error", otherwise null | null |
data | object | null | Contains the API response data if successful, otherwise null | {...} |
Learn more about response formats →
Response Data Fields
When the request is successful, the data object contains the following fields:
| Field | Type | Sample Value |
|---|---|---|
language | string | |
iso | string |
Headers
Required and optional headers for Text Language API requests:
| Header Name | Required | Example Value | Description |
|---|---|---|---|
X-API-Key | required | your_api_key_here | Your APIVerve API key. Found in your dashboard under API Keys. |
Accept | optional | application/json | Specify response format: application/json (default), application/xml, or application/yaml |
User-Agent | optional | MyApp/1.0 | Identifies your application for analytics and debugging purposes |
X-Request-ID | optional | req_123456789 | Custom request identifier for tracking and debugging requests |
Cache-Control | optional | no-cache | Control caching behavior for the request and response |
GraphQL AccessALPHA
Access Text Language through GraphQL to combine it with other API calls in a single request. Query only the text language data you need with precise field selection, and orchestrate complex data fetching workflows.
Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.
POST https://api.apiverve.com/v1/graphqlquery {
textlanguage(
input: {
text: "Ceci est un exemple de texte. Il peut détecter la langue"
}
) {
language
iso
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Text Language API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Text Language directly from browser-based applications without proxy servers.
| CORS Header | Value | Description |
|---|---|---|
Access-Control-Allow-Origin | * | Accepts requests from any origin |
Access-Control-Allow-Methods | * | Accepts any HTTP method |
Access-Control-Allow-Headers | * | Accepts any request headers |
Browser Usage: You can call Text Language directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.
Rate Limiting
Text Language API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Text Language users.
| Plan | Rate Limit | Description |
|---|---|---|
| Free | 5 requests/min | Hard rate limit enforced - exceeding will return 429 errors |
| Starter | No Limit | Production ready - standard traffic priority |
| Pro | No Limit | Production ready - preferred traffic priority |
| Mega | No Limit | Production ready - highest traffic priority |
Learn more about rate limiting →
Rate Limit Headers
When rate limits apply, each Text Language response includes headers to help you track your usage:
| Header | Description |
|---|---|
X-RateLimit-Limit | Maximum number of requests allowed per time window |
X-RateLimit-Remaining | Number of requests remaining in the current window |
X-RateLimit-Reset | Unix timestamp when the rate limit window resets |
Handling Rate Limits
Free Plan: When you exceed your rate limit, Text Language returns a 429 Too Many Requests status code. Your application should implement appropriate backoff logic to handle this gracefully.
Paid Plans: No rate limiting or throttling applied. All paid plans (Starter, Pro, Mega) are production-ready.
Best Practices for Text Language:
- Monitor the rate limit headers to track your Text Language usage (Free plan only)
- Cache text language responses where appropriate to reduce API calls
- Upgrade to Pro or Mega for guaranteed no-throttle Text Language performance
Note: Text Language rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Text Language on Free tier.
Error Codes
The Text Language API uses standard HTTP status codes to indicate success or failure:
| Code | Message | Description | Solution |
|---|---|---|---|
200 | OK | Request successful, data returned | No action needed - request was successful |
400 | Bad Request | Invalid request parameters or malformed request | Check required parameters and ensure values match expected formats |
401 | Unauthorized | Missing or invalid API key | Include x-api-key header with valid API key from dashboard |
403 | Forbidden | API key lacks permission or insufficient credits | Check credit balance in dashboard or upgrade plan |
429 | Too Many Requests | Rate limit exceeded (Free: 5 req/min) | Implement request throttling or upgrade to paid plan |
500 | Internal Server Error | Server error occurred | Retry request after a few seconds, contact support if persists |
503 | Service Unavailable | API temporarily unavailable | Wait and retry, check status page for maintenance updates |
Learn more about error handling →
Need help? Contact support with your X-Request-ID for assistance.
Integrate Text Language with SDKs
Get started quickly with official Text Language SDKs for your preferred language. Each library handles authentication, request formatting, and error handling automatically.
Available for Node.js, Python, C#/.NET, and Android/Java. All SDKs are open source and regularly updated.
Integrate Text Language with No-Code API Tools
Connect the Text Language API to your favorite automation platform without writing code. Build workflows that leverage text language data across thousands of apps.





All platforms use your same API key to access Text Language. Visit our integrations hub for step-by-step setup guides.
Frequently Asked Questions
How do I get an API key for Text Language?
How many credits does Text Language cost?
Each successful Text Language API call consumes credits based on plan tier. Check the pricing section above for the exact credit cost. Failed requests and errors don't consume credits, so you only pay for successful text language lookups.
Can I use Text Language in production?
The free plan is for testing and development only. For production use of Text Language, upgrade to a paid plan (Starter, Pro, or Mega) which includes commercial use rights, no attribution requirements, and guaranteed uptime SLAs. All paid plans are production-ready.
Can I use Text Language from a browser?
What happens if I exceed my Text Language credit limit?
When you reach your monthly credit limit, Text Language API requests will return an error until you upgrade your plan or wait for the next billing cycle. You'll receive notifications at 80% and 95% usage to give you time to upgrade if needed.



