Fill in the Blanks Generator API
Fill in the Blanks Generator creates completion puzzles from idioms, proverbs, quotes, science facts, and geography trivia.
The Fill in the Blanks Generator API provides reliable and fast access to fill in the blanks generator data through a simple REST interface. Built for developers who need consistent, high-quality results with minimal setup time.
To use Fill in the Blanks Generator, you need an API key. You can get one by creating a free account and visiting your dashboard.
GET Endpoint
https://api.apiverve.com/v1/fillintheblanksCode Examples
Here are examples of how to call the Fill in the Blanks Generator API in different programming languages:
curl -X GET \
"https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium" \
-H "X-API-Key: your_api_key_here"const response = await fetch('https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium', {
method: 'GET',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
});
const data = await response.json();
console.log(data);import requests
headers = {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
response = requests.get('https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium', headers=headers)
data = response.json()
print(data)const https = require('https');
const url = require('url');
const options = {
method: 'GET',
headers: {
'X-API-Key': 'your_api_key_here',
'Content-Type': 'application/json'
}
};
const req = https.request('https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium', options, (res) => {
let data = '';
res.on('data', (chunk) => data += chunk);
res.on('end', () => console.log(JSON.parse(data)));
});
req.end();<?php
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium');
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_CUSTOMREQUEST, 'GET');
curl_setopt($ch, CURLOPT_HTTPHEADER, [
'X-API-Key: your_api_key_here',
'Content-Type: application/json'
]);
$response = curl_exec($ch);
curl_close($ch);
$data = json_decode($response, true);
print_r($data);
?>package main
import (
"fmt"
"io"
"net/http"
)
func main() {
req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium", nil)
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/fillintheblanks?category=idioms&count=5&difficulty=medium')
http = Net::HTTP.new(uri.host, uri.port)
http.use_ssl = true
request = Net::HTTP::Get.new(uri)
request['X-API-Key'] = 'your_api_key_here'
request['Content-Type'] = 'application/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 response = await client.GetAsync("https://api.apiverve.com/v1/fillintheblanks?category=idioms&count=5&difficulty=medium");
response.EnsureSuccessStatusCode();
var responseBody = await response.Content.ReadAsStringAsync();
Console.WriteLine(responseBody);
}
}Authentication
The Fill in the Blanks Generator 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 Fill in the Blanks Generator API directly in your browser with live requests and responses.
Parameters
The following parameters are available for the Fill in the Blanks Generator API:
Generate Fill in the Blanks
| Parameter | Type | Required | Description | Default | Example |
|---|---|---|---|---|---|
category | string | optional | Puzzle category Supported values: randomidiomsproverbsquotesscience | ||
count | integer | optional | Number of puzzles Range: 1 - 20 | ||
difficulty | string | optional | Difficulty level Supported values: easymediumhard |
Response
The Fill in the Blanks Generator API returns responses in JSON, XML, YAML, and CSV formats:
Example Responses
{
"status": "ok",
"error": null,
"data": {
"puzzles": [
{
"id": 1,
"sentence": "A penny saved is a penny ___.",
"answer": "EARNED",
"letterCount": 6,
"hint": "gained/obtained",
"firstLetter": null
},
{
"id": 2,
"sentence": "Actions speak louder than ___.",
"answer": "WORDS",
"letterCount": 5,
"hint": "what we say",
"firstLetter": null
},
{
"id": 3,
"sentence": "Don't count your chickens before they ___.",
"answer": "HATCH",
"letterCount": 5,
"hint": "come out of eggs",
"firstLetter": null
},
{
"id": 4,
"sentence": "The early bird catches the ___.",
"answer": "WORM",
"letterCount": 4,
"hint": "a crawling creature",
"firstLetter": null
},
{
"id": 5,
"sentence": "Don't put all your eggs in one ___.",
"answer": "BASKET",
"letterCount": 6,
"hint": "a container",
"firstLetter": null
}
],
"count": 5,
"difficulty": "medium",
"category": "idioms",
"html": "<html><head><title>Fill in the Blanks</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 700px; margin: 0 auto;}h1 {text-align: center; color: #673AB7;}.puzzle {background: #f5f5f5; padding: 20px; margin: 15px 0; border-radius: 10px;}.number {font-weight: bold; color: #673AB7; margin-bottom: 10px;}.sentence {font-size: 18px; line-height: 1.8;}.blank {display: inline-block; min-width: 100px; border-bottom: 2px solid #673AB7; margin: 0 5px;}.hint {font-size: 13px; color: #888; font-style: italic; margin-top: 10px;}.info {font-size: 12px; color: #999; margin-top: 5px;}</style></head><body><h1>Fill in the Blanks</h1><div class='puzzle'><div class='number'>#1</div><div class='sentence'>A penny saved is a penny <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: gained/obtained</div></div><div class='puzzle'><div class='number'>#2</div><div class='sentence'>Actions speak louder than <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: what we say</div></div><div class='puzzle'><div class='number'>#3</div><div class='sentence'>Don't count your chickens before they <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: come out of eggs</div></div><div class='puzzle'><div class='number'>#4</div><div class='sentence'>The early bird catches the <span class='blank'></span>.</div><div class='info'>4 letters</div><div class='hint'>Hint: a crawling creature</div></div><div class='puzzle'><div class='number'>#5</div><div class='sentence'>Don't put all your eggs in one <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: a container</div></div></body></html>",
"image": {
"imageName": "ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png",
"format": ".png",
"downloadURL": "https://storage.googleapis.com/apiverve/APIData/fillintheblanks/ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010206&Signature=YRHfh28GKDNvEM4Q07qRcNyg3WnPs7Ee7yg0xXKxKRTmT%2Bg3x%2FThpfWsFTeYScpZlgQTVQ3SU1tZMGH74sZJvAHdVkG6IGA9V2lwIfhHzcfu4Uf4VGKL8%2FIa%2FaLupdtrgDqXSFWOJ9EHHeMKnImAhli1qhlMu%2BIuWAiqfPitDlN5pMklv4R5FACKkZld4LXyA82%2BX8bt%2FESyHciZ5jzlqY1JTacL4kW5uK09bpoo9Ytvs8XOOOjB0my1s%2BIq5z0JEwZzw1Jag%2F5vd09wTXzSXeQMzfo%2FDj73kpU7SilAxEGh%2BuflilyDQTXK7krXcdFUGcD5Nd4Wm%2BW7dP8tQKmbAA%3D%3D",
"expires": 1766010206793
}
}
}<?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>
<puzzles>
<puzzle>
<id>1</id>
<sentence>A penny saved is a penny ___.</sentence>
<answer>EARNED</answer>
<letterCount>6</letterCount>
<hint>gained/obtained</hint>
<firstLetter xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
</puzzle>
<puzzle>
<id>2</id>
<sentence>Actions speak louder than ___.</sentence>
<answer>WORDS</answer>
<letterCount>5</letterCount>
<hint>what we say</hint>
<firstLetter xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
</puzzle>
<puzzle>
<id>3</id>
<sentence>Don't count your chickens before they ___.</sentence>
<answer>HATCH</answer>
<letterCount>5</letterCount>
<hint>come out of eggs</hint>
<firstLetter xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
</puzzle>
<puzzle>
<id>4</id>
<sentence>The early bird catches the ___.</sentence>
<answer>WORM</answer>
<letterCount>4</letterCount>
<hint>a crawling creature</hint>
<firstLetter xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
</puzzle>
<puzzle>
<id>5</id>
<sentence>Don't put all your eggs in one ___.</sentence>
<answer>BASKET</answer>
<letterCount>6</letterCount>
<hint>a container</hint>
<firstLetter xsi:nil="true" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"/>
</puzzle>
</puzzles>
<count>5</count>
<difficulty>medium</difficulty>
<category>idioms</category>
<html><html><head><title>Fill in the Blanks</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 700px; margin: 0 auto;}h1 {text-align: center; color: #673AB7;}.puzzle {background: #f5f5f5; padding: 20px; margin: 15px 0; border-radius: 10px;}.number {font-weight: bold; color: #673AB7; margin-bottom: 10px;}.sentence {font-size: 18px; line-height: 1.8;}.blank {display: inline-block; min-width: 100px; border-bottom: 2px solid #673AB7; margin: 0 5px;}.hint {font-size: 13px; color: #888; font-style: italic; margin-top: 10px;}.info {font-size: 12px; color: #999; margin-top: 5px;}</style></head><body><h1>Fill in the Blanks</h1><div class='puzzle'><div class='number'>#1</div><div class='sentence'>A penny saved is a penny <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: gained/obtained</div></div><div class='puzzle'><div class='number'>#2</div><div class='sentence'>Actions speak louder than <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: what we say</div></div><div class='puzzle'><div class='number'>#3</div><div class='sentence'>Don't count your chickens before they <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: come out of eggs</div></div><div class='puzzle'><div class='number'>#4</div><div class='sentence'>The early bird catches the <span class='blank'></span>.</div><div class='info'>4 letters</div><div class='hint'>Hint: a crawling creature</div></div><div class='puzzle'><div class='number'>#5</div><div class='sentence'>Don't put all your eggs in one <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: a container</div></div></body></html></html>
<image>
<imageName>ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png</imageName>
<format>.png</format>
<downloadURL>https://storage.googleapis.com/apiverve/APIData/fillintheblanks/ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010206&Signature=YRHfh28GKDNvEM4Q07qRcNyg3WnPs7Ee7yg0xXKxKRTmT%2Bg3x%2FThpfWsFTeYScpZlgQTVQ3SU1tZMGH74sZJvAHdVkG6IGA9V2lwIfhHzcfu4Uf4VGKL8%2FIa%2FaLupdtrgDqXSFWOJ9EHHeMKnImAhli1qhlMu%2BIuWAiqfPitDlN5pMklv4R5FACKkZld4LXyA82%2BX8bt%2FESyHciZ5jzlqY1JTacL4kW5uK09bpoo9Ytvs8XOOOjB0my1s%2BIq5z0JEwZzw1Jag%2F5vd09wTXzSXeQMzfo%2FDj73kpU7SilAxEGh%2BuflilyDQTXK7krXcdFUGcD5Nd4Wm%2BW7dP8tQKmbAA%3D%3D</downloadURL>
<expires>1766010206793</expires>
</image>
</data>
</response>
status: ok
error: null
data:
puzzles:
- id: 1
sentence: A penny saved is a penny ___.
answer: EARNED
letterCount: 6
hint: gained/obtained
firstLetter: null
- id: 2
sentence: Actions speak louder than ___.
answer: WORDS
letterCount: 5
hint: what we say
firstLetter: null
- id: 3
sentence: Don't count your chickens before they ___.
answer: HATCH
letterCount: 5
hint: come out of eggs
firstLetter: null
- id: 4
sentence: The early bird catches the ___.
answer: WORM
letterCount: 4
hint: a crawling creature
firstLetter: null
- id: 5
sentence: Don't put all your eggs in one ___.
answer: BASKET
letterCount: 6
hint: a container
firstLetter: null
count: 5
difficulty: medium
category: idioms
html: >-
<html><head><title>Fill in the Blanks</title><style>body {font-family:
Arial, sans-serif; padding: 20px; max-width: 700px; margin: 0 auto;}h1
{text-align: center; color: #673AB7;}.puzzle {background: #f5f5f5; padding:
20px; margin: 15px 0; border-radius: 10px;}.number {font-weight: bold;
color: #673AB7; margin-bottom: 10px;}.sentence {font-size: 18px;
line-height: 1.8;}.blank {display: inline-block; min-width: 100px;
border-bottom: 2px solid #673AB7; margin: 0 5px;}.hint {font-size: 13px;
color: #888; font-style: italic; margin-top: 10px;}.info {font-size: 12px;
color: #999; margin-top: 5px;}</style></head><body><h1>Fill in the
Blanks</h1><div class='puzzle'><div class='number'>#1</div><div
class='sentence'>A penny saved is a penny <span
class='blank'></span>.</div><div class='info'>6 letters</div><div
class='hint'>Hint: gained/obtained</div></div><div class='puzzle'><div
class='number'>#2</div><div class='sentence'>Actions speak louder than <span
class='blank'></span>.</div><div class='info'>5 letters</div><div
class='hint'>Hint: what we say</div></div><div class='puzzle'><div
class='number'>#3</div><div class='sentence'>Don't count your chickens
before they <span class='blank'></span>.</div><div class='info'>5
letters</div><div class='hint'>Hint: come out of eggs</div></div><div
class='puzzle'><div class='number'>#4</div><div class='sentence'>The early
bird catches the <span class='blank'></span>.</div><div class='info'>4
letters</div><div class='hint'>Hint: a crawling creature</div></div><div
class='puzzle'><div class='number'>#5</div><div class='sentence'>Don't put
all your eggs in one <span class='blank'></span>.</div><div class='info'>6
letters</div><div class='hint'>Hint: a container</div></div></body></html>
image:
imageName: ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png
format: .png
downloadURL: >-
https://storage.googleapis.com/apiverve/APIData/fillintheblanks/ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010206&Signature=YRHfh28GKDNvEM4Q07qRcNyg3WnPs7Ee7yg0xXKxKRTmT%2Bg3x%2FThpfWsFTeYScpZlgQTVQ3SU1tZMGH74sZJvAHdVkG6IGA9V2lwIfhHzcfu4Uf4VGKL8%2FIa%2FaLupdtrgDqXSFWOJ9EHHeMKnImAhli1qhlMu%2BIuWAiqfPitDlN5pMklv4R5FACKkZld4LXyA82%2BX8bt%2FESyHciZ5jzlqY1JTacL4kW5uK09bpoo9Ytvs8XOOOjB0my1s%2BIq5z0JEwZzw1Jag%2F5vd09wTXzSXeQMzfo%2FDj73kpU7SilAxEGh%2BuflilyDQTXK7krXcdFUGcD5Nd4Wm%2BW7dP8tQKmbAA%3D%3D
expires: 1766010206793
| key | value |
|---|---|
| puzzles | [{id:1,sentence:A penny saved is a penny ___.,answer:EARNED,letterCount:6,hint:gained/obtained,firstLetter:null},{id:2,sentence:Actions speak louder than ___.,answer:WORDS,letterCount:5,hint:what we say,firstLetter:null},{id:3,sentence:Don't count your chickens before they ___.,answer:HATCH,letterCount:5,hint:come out of eggs,firstLetter:null},{id:4,sentence:The early bird catches the ___.,answer:WORM,letterCount:4,hint:a crawling creature,firstLetter:null},{id:5,sentence:Don't put all your eggs in one ___.,answer:BASKET,letterCount:6,hint:a container,firstLetter:null}] |
| count | 5 |
| difficulty | medium |
| category | idioms |
| html | <html><head><title>Fill in the Blanks</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 700px; margin: 0 auto;}h1 {text-align: center; color: #673AB7;}.puzzle {background: #f5f5f5; padding: 20px; margin: 15px 0; border-radius: 10px;}.number {font-weight: bold; color: #673AB7; margin-bottom: 10px;}.sentence {font-size: 18px; line-height: 1.8;}.blank {display: inline-block; min-width: 100px; border-bottom: 2px solid #673AB7; margin: 0 5px;}.hint {font-size: 13px; color: #888; font-style: italic; margin-top: 10px;}.info {font-size: 12px; color: #999; margin-top: 5px;}</style></head><body><h1>Fill in the Blanks</h1><div class='puzzle'><div class='number'>#1</div><div class='sentence'>A penny saved is a penny <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: gained/obtained</div></div><div class='puzzle'><div class='number'>#2</div><div class='sentence'>Actions speak louder than <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: what we say</div></div><div class='puzzle'><div class='number'>#3</div><div class='sentence'>Don't count your chickens before they <span class='blank'></span>.</div><div class='info'>5 letters</div><div class='hint'>Hint: come out of eggs</div></div><div class='puzzle'><div class='number'>#4</div><div class='sentence'>The early bird catches the <span class='blank'></span>.</div><div class='info'>4 letters</div><div class='hint'>Hint: a crawling creature</div></div><div class='puzzle'><div class='number'>#5</div><div class='sentence'>Don't put all your eggs in one <span class='blank'></span>.</div><div class='info'>6 letters</div><div class='hint'>Hint: a container</div></div></body></html> |
| image | {imageName:ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png,format:.png,downloadURL:https://storage.googleapis.com/apiverve/APIData/fillintheblanks/ba85c6d6-4376-4171-841d-8b4bc97e1095_fillblanks.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010206&Signature=YRHfh28GKDNvEM4Q07qRcNyg3WnPs7Ee7yg0xXKxKRTmT%2Bg3x%2FThpfWsFTeYScpZlgQTVQ3SU1tZMGH74sZJvAHdVkG6IGA9V2lwIfhHzcfu4Uf4VGKL8%2FIa%2FaLupdtrgDqXSFWOJ9EHHeMKnImAhli1qhlMu%2BIuWAiqfPitDlN5pMklv4R5FACKkZld4LXyA82%2BX8bt%2FESyHciZ5jzlqY1JTacL4kW5uK09bpoo9Ytvs8XOOOjB0my1s%2BIq5z0JEwZzw1Jag%2F5vd09wTXzSXeQMzfo%2FDj73kpU7SilAxEGh%2BuflilyDQTXK7krXcdFUGcD5Nd4Wm%2BW7dP8tQKmbAA%3D%3D,expires:1766010206793} |
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 |
|---|---|---|
| [ ] Array items: | array[5] | |
â”” id | number | |
â”” sentence | string | |
â”” answer | string | |
â”” letterCount | number | |
â”” hint | string | |
â”” firstLetter | object | |
count | number | |
difficulty | string | |
category | string | |
htmlPremium | string | |
imagePremium | object | |
â”” imageName | string | |
â”” format | string | |
â”” downloadURL | string | |
â”” expires | number |
Headers
Required and optional headers for Fill in the Blanks Generator 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 Fill in the Blanks Generator through GraphQL to combine it with other API calls in a single request. Query only the fill in the blanks generator 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 {
fillintheblanks(
input: {
category: "idioms"
count: 5
difficulty: "medium"
}
) {
puzzles
count
difficulty
category
html
image {
imageName
format
downloadURL
expires
}
}
}Note: Authentication is handled via the x-api-key header in your GraphQL request, not as a query parameter.
CORS Support
The Fill in the Blanks Generator API supports Cross-Origin Resource Sharing (CORS) with wildcard configuration, allowing you to call Fill in the Blanks Generator 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 Fill in the Blanks Generator directly from JavaScript running in the browser without encountering CORS errors. No proxy server or additional configuration needed.
Rate Limiting
Fill in the Blanks Generator API requests are subject to rate limiting based on your subscription plan. These limits ensure fair usage and maintain service quality for all Fill in the Blanks Generator 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 Fill in the Blanks Generator 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, Fill in the Blanks Generator 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 Fill in the Blanks Generator:
- Monitor the rate limit headers to track your Fill in the Blanks Generator usage (Free plan only)
- Cache fill in the blanks generator responses where appropriate to reduce API calls
- Upgrade to Pro or Mega for guaranteed no-throttle Fill in the Blanks Generator performance
Note: Fill in the Blanks Generator rate limits are separate from credit consumption. You may have credits remaining but still hit rate limits when using Fill in the Blanks Generator on Free tier.
Error Codes
The Fill in the Blanks Generator 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 Fill in the Blanks Generator with SDKs
Get started quickly with official Fill in the Blanks Generator 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 Fill in the Blanks Generator with No-Code API Tools
Connect the Fill in the Blanks Generator API to your favorite automation platform without writing code. Build workflows that leverage fill in the blanks generator data across thousands of apps.





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



