Parts Of SpeechParts Of Speech API

OnlineCredit Usage:1 per callRefreshed 1 month ago
avg: 964ms|p50: 900ms|p75: 1006ms|p90: 1134ms|p99: 1388ms

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

URL
https://api.apiverve.com/v1/partsofspeech

Code Examples

Here are examples of how to call the Parts Of Speech API in different programming languages:

cURL Request
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"
}'
JavaScript (Fetch API)
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);
Python (Requests)
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)
Node.js (Native HTTPS)
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 (cURL)
<?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);

?>
Go (net/http)
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))
}
Ruby (Net::HTTP)
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))
C# (HttpClient)
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:

Required Header
X-API-Key: your_api_key_here

Learn more about authentication →

Interactive 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

ParameterTypeRequiredDescriptionDefaultExample
textstringrequired
The text to extract words from
-The quick brown fox jumps over the lazy dog
partofspeechstringrequired
The part of speech to extract
Supported values: nounsverbsadjectivesadverbspronouns
nounsnouns

Response

The Parts Of Speech API returns responses in JSON, XML, YAML, and CSV formats:

Example Responses

JSON Response
200 OK
{
  "status": "ok",
  "error": null,
  "data": {
    "partofspeech": "verbs",
    "result": [
      "located",
      "had",
      "visit",
      "packed up",
      "boarded",
      "bound"
    ],
    "count": 6
  }
}
XML Response
200 OK
<?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>
YAML Response
200 OK
status: ok
error: null
data:
  partofspeech: verbs
  result:
    - located
    - had
    - visit
    - packed up
    - boarded
    - bound
  count: 6
CSV Response
200 OK
keyvalue
partofspeechverbs
result[located,had,visit,packed up,boarded,bound]
count6

Response Structure

All API responses follow a consistent structure with the following fields:

FieldTypeDescriptionExample
statusstringIndicates whether the request was successful ("ok") or failed ("error")ok
errorstring | nullContains error message if status is "error", otherwise nullnull
dataobject | nullContains 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:

FieldTypeSample ValueDescription
partofspeechstring"verbs"-
resultarray["located", ...]-
countnumber6-

Headers

Required and optional headers for Parts Of Speech API requests:

Header NameRequiredExample ValueDescription
X-API-Keyrequiredyour_api_key_hereYour APIVerve API key. Found in your dashboard under API Keys.
Acceptoptionalapplication/jsonSpecify response format: application/json (default), application/xml, or application/yaml
User-AgentoptionalMyApp/1.0Identifies your application for analytics and debugging purposes
X-Request-IDoptionalreq_123456789Custom request identifier for tracking and debugging requests
Cache-Controloptionalno-cacheControl caching behavior for the request and response

Learn more about request headers →

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.

Test Parts Of Speech in the GraphQL Explorer to confirm availability and experiment with queries.

Credit Cost: Each API called in your GraphQL query consumes its standard credit cost.

GraphQL Endpoint
POST https://api.apiverve.com/v1/graphql
GraphQL Query Example
query {
  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 HeaderValueDescription
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.

Learn more about CORS support →

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.

PlanRate LimitDescription
Free5 requests/minHard rate limit enforced - exceeding will return 429 errors
StarterNo LimitProduction ready - standard traffic priority
ProNo LimitProduction ready - preferred traffic priority
MegaNo LimitProduction 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:

HeaderDescription
X-RateLimit-LimitMaximum number of requests allowed per time window
X-RateLimit-RemainingNumber of requests remaining in the current window
X-RateLimit-ResetUnix 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:

CodeMessageDescriptionSolution
200OKRequest successful, data returnedNo action needed - request was successful
400Bad RequestInvalid request parameters or malformed requestCheck required parameters and ensure values match expected formats
401UnauthorizedMissing or invalid API keyInclude x-api-key header with valid API key from dashboard
403ForbiddenAPI key lacks permission or insufficient creditsCheck credit balance in dashboard or upgrade plan
429Too Many RequestsRate limit exceeded (Free: 5 req/min)Implement request throttling or upgrade to paid plan
500Internal Server ErrorServer error occurredRetry request after a few seconds, contact support if persists
503Service UnavailableAPI temporarily unavailableWait 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?
Sign up for a free account at dashboard.apiverve.com. Your API key will be automatically generated and available in your dashboard. The same key works for Parts Of Speech and all other APIVerve APIs. The free plan includes 1,000 credits plus a 500 credit bonus.
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?
Yes! The Parts Of Speech API supports CORS with wildcard configuration, so you can call it directly from browser-based JavaScript without needing a proxy server. See the CORS section above for details.
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.

What's Next?

Continue your journey with these recommended resources

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