Parts Of Speech API
Parts Of Speech is a simple tool for extracting nouns, verbs, adjectives, adverbs, etc. from text. It returns the extracted words based on the part of speech specified.
The Parts Of Speech API provides reliable and fast access to parts of speech data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.
To use Parts Of Speech, 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/partsofspeechCode Examples
Here are examples of how to call the Parts Of Speech API in different programming languages:
curl -X POST \
"https://api.apiverve.com/v1/partsofspeech" \
-H "X-API-Key: your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"text": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
}'const response = await fetch('https://api.apiverve.com/v1/partsofspeech', {
method: 'POST',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"text": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
})
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
payload = {
"text": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
}
response = requests.post('https://api.apiverve.com/v1/partsofspeech', 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": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
});
const req = https.request('https://api.apiverve.com/v1/partsofspeech', 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/partsofspeech');
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': 'My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village',
'partofspeech': 'verbs'
}));
$response = curl_exec($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": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
}
jsonPayload, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/partsofspeech", 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/partsofspeech')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
payload = {
"text": "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village",
"partofspeech": "verbs"
}
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"": ""My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village"",
""partofspeech"": ""verbs""
}";
var content = new StringContent(jsonContent, Encoding.UTF8, "application/json");
var response = await client.PostAsync("https://api.apiverve.com/v1/partsofspeech", content);
response.EnsureSuccessStatusCode();
var responseBody = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseBody);
}
}Authentication
The Parts Of Speech 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 Parts Of Speech API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the Parts Of Speech API:
Extract Words
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
text | string | required | The text to extract words from | - | |
partofspeech | string | required | The part of speech to extract Supported values: nounsverbsadjectivesadverbspronouns |
Response
The Parts Of Speech API returns responses in JSON, XML, YAML, and CSV formats:
Example Responses
{
"status": "ok",
"error": null,
"data": {
"partofspeech": "verbs",
"result": [
"located",
"had",
"visit",
"packed up",
"boarded",
"bound"
],
"count": 6
}
}<?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>
<partofspeech>verbs</partofspeech>
<result>
<item>located</item>
<item>had</item>
<item>visit</item>
<item>packed up</item>
<item>boarded</item>
<item>bound</item>
</result>
<count>6</count>
</data>
</response>
status: ok
error: null
data:
partofspeech: verbs
result:
- located
- had
- visit
- packed up
- boarded
- bound
count: 6
| key | value |
|---|---|
| partofspeech | verbs |
| result | [located,had,visit,packed up,boarded,bound] |
| count | 6 |
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 | Description |
|---|---|---|---|
partofspeech | string | - | |
result | array | - | |
count | number | - |
Headers
Required and optional headers for Parts Of Speech 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 Parts Of Speech through GraphQL to combine it with other API calls in a single request. Query only the parts of speech 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 {
partsofspeech(
input: {
text: "My friend from college hails from a small countryside village located at the heart of the state. During the last summer vacation, I had an opportunity to visit my friend in his village. I packed up my belongings and boarded the bus bound for the village"
partofspeech: "verbs"
}
) {
partofspeech
result
count
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Parts Of Speech API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Parts Of Speech 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 Parts Of Speech directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.
Rate Limiting
Parts Of Speech API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Parts Of Speech 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 Parts Of Speech 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, Parts Of Speech 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 Parts Of Speech:
- Monitor the rate limit headers to track your Parts Of Speech usage (Free plan only)
- Cache parts of speech responses where appropriate to reduce API calls
- Upgrade to Pro or Mega for guaranteed no-throttle Parts Of Speech performance
Note: Parts Of Speech rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Parts Of Speech on Free tier.
Error Codes
The Parts Of Speech 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 Parts Of Speech with SDKs
Get started quickly with official Parts Of Speech 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 Parts Of Speech with No-Code API Tools
Connect the Parts Of Speech API to your favorite automation platform without writing code. Build workflows that leverage parts of speech data across thousands of apps.





All platforms use your same API key to access Parts Of Speech. Visit our integrations hub for step-by-step setup guides.
Frequently Asked Questions
How do I get an API key for Parts Of Speech?
How many credits does Parts Of Speech cost?
Each successful Parts Of Speech 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 parts of speech lookups.
Can I use Parts Of Speech in production?
The free plan is for testing and development only. For production use of Parts Of Speech, 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 Parts Of Speech from a browser?
What happens if I exceed my Parts Of Speech credit limit?
When you reach your monthly credit limit, Parts Of Speech 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.



