Text Summarizer API
Overview
To use Text Summarizer, 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/textsummarizerExample
How to call the Text Summarizer API in different programming languages.
curl -X POST \
"https://api.apiverve.com/v1/textsummarizer" \
-H "X-API-Key: your_api_key_here" \
-H "Content-Type: application/json" \
-d '{
"text": "A news article can include accounts of eyewitnesses to the happening event. It can contain photographs, accounts, statistics, graphs, recollections, interviews, polls, debates on the topic, etc. Headlines can be used to focus the reader's attention on a particular (or main) part of the article. The writer can also give facts and detailed information following answers to general questions like who, what, when, where, why and how.",
"sentences": 2
}'const response = await fetch('https://api.apiverve.com/v1/textsummarizer', {
method: 'POST',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
},
body: JSON.stringify({
"text": "A news article can include accounts of eyewitnesses to the happening event. It can contain photographs, accounts, statistics, graphs, recollections, interviews, polls, debates on the topic, etc. Headlines can be used to focus the reader's attention on a particular (or main) part of the article. The writer can also give facts and detailed information following answers to general questions like who, what, when, where, why and how.",
"sentences": 2
})
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
payload = {
"text": "A news article can include accounts of eyewitnesses to the happening event. It can contain photographs, accounts, statistics, graphs, recollections, interviews, polls, debates on the topic, etc. Headlines can be used to focus the reader's attention on a particular (or main) part of the article. The writer can also give facts and detailed information following answers to general questions like who, what, when, where, why and how.",
"sentences": 2
}
response = requests.post('https://api.apiverve.com/v1/textsummarizer', headers=headers, json=payload)
data = response.json()
print(data)package main
import (
"fmt"
"io"
"net/http"
"bytes"
"encoding/json"
)
func main() {
payload := map[string]interface{}{
"text": "A news article can include accounts of eyewitnesses to the happening event. It can contain photographs, accounts, statistics, graphs, recollections, interviews, polls, debates on the topic, etc. Headlines can be used to focus the reader's attention on a particular (or main) part of the article. The writer can also give facts and detailed information following answers to general questions like who, what, when, where, why and how.",
"sentences": "2"
}
jsonPayload, _ := json.Marshal(payload)
req, _ := http.NewRequest("POST", "https://api.apiverve.com/v1/textsummarizer", 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))
}{
"status": "ok",
"error": null,
"data": {
"originalWords": 67,
"summaryWords": 30,
"percentDifference": 44.78,
"summary": "Headlines can be used to focus the reader's attention on a particular (or main) part of the article. A news article can include accounts of eyewitnesses to the happening event."
}
}Authentication
The Text Summarizer 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 Summarizer API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the Text Summarizer API:
Summarize Text
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
text | string | required | The text to summarize (up to 5000 characters) | - | |
sentences | number | optional | The length of the summary (number of sentences) |
Response
The Text Summarizer API returns responses in JSON, XML, YAML, and CSV formats. The JSON response is shown in the Example section above; alternative formats below.
Other Response Formats
<?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>
<originalWords>67</originalWords>
<summaryWords>30</summaryWords>
<percentDifference>44.78</percentDifference>
<summary>Headlines can be used to focus the reader's attention on a particular (or main) part of the article. A news article can include accounts of eyewitnesses to the happening event.</summary>
</data>
</response>
status: ok
error: null
data:
originalWords: 67
summaryWords: 30
percentDifference: 44.78
summary: >-
Headlines can be used to focus the reader's attention on a particular (or
main) part of the article. A news article can include accounts of
eyewitnesses to the happening event.
| key | value |
|---|---|
| originalWords | 67 |
| summaryWords | 30 |
| percentDifference | 44.78 |
| summary | Headlines can be used to focus the reader's attention on a particular (or main) part of the article. A news article can include accounts of eyewitnesses to the happening event. |
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 |
|---|---|---|---|
originalWordsPremium | number | Total word count in the original text input | |
summaryWordsPremium | number | Total word count in the generated summary output | |
percentDifferencePremium | number | Percentage reduction from original to summary text | |
summary | string | The condensed text summary capturing key points |
Headers
Only X-API-Key is required. Optional headers include Accept for response format negotiation (JSON, XML, or YAML), User-Agent, and X-Request-ID for request tracing. See all request headers →
GraphQL AccessALPHA
Access Text Summarizer through GraphQL to combine it with other API calls in a single request. Query only the text summarizer 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 {
textsummarizer(
input: {
text: "A news article can include accounts of eyewitnesses to the happening event. It can contain photographs, accounts, statistics, graphs, recollections, interviews, polls, debates on the topic, etc. Headlines can be used to focus the reader's attention on a particular (or main) part of the article. The writer can also give facts and detailed information following answers to general questions like who, what, when, where, why and how."
sentences: 2
}
) {
originalWords
summaryWords
percentDifference
summary
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Text Summarizer API accepts cross-origin requests from any origin, so it can be called directly from browser-based applications without a proxy. See CORS support →
Rate Limiting
Text Summarizer requests are throttled per minute on the Free plan and unthrottled on paid plans. Exceeding the limit returns 429 Too Many Requests; rate-limit usage is reported in the X-RateLimit-Limit, X-RateLimit-Remaining, and X-RateLimit-Reset response headers. See per-plan limits and best practices →
Error Codes
The Text Summarizer API uses standard HTTP status codes — 200 on success, 400 for invalid parameters, 401 for missing or invalid keys, 403 for insufficient credits, 429 for rate-limit exhaustion, and 500/503 for server-side issues. Each error response includes an X-Request-ID header you can quote when contacting support. See full error handling guide →
SDKs for Text Summarizer
Official Text Summarizer packages on npm, PyPI, NuGet, and JitPack — plus a Postman collection and an OpenAPI spec. See the SDK guide →
No-Code Integrations
Text Summarizer works with Zapier, Make, Pipedream, n8n, and Power Automate using the same API key. See setup guides →
Frequently Asked Questions
How do I get an API key for Text Summarizer?
How many credits does Text Summarizer cost?
Each successful Text Summarizer 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 summarizer lookups.
Can I use Text Summarizer in production?
The free plan is for testing and development only. For production use of Text Summarizer, 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 Summarizer from a browser?
What happens if I exceed my Text Summarizer credit limit?
When you reach your monthly credit limit, Text Summarizer 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.








