Mad Libs Generator API Reference

Overview

Returns story templates with blank types, labels, and an interactive HTML form for filling in words.

Endpoint

One host, one path per API. The block below shows this call in four languages; every one of them is the same HTTP request. Making requests covers the timeouts, retries and parameter rules that apply to all of them. The SDKs wrap the same call in a typed client.

GEThttps://api.apiverve.com/v1/madlibs

curl "https://api.apiverve.com/v1/madlibs?category=funny&count=1" \
  -H "x-api-key: your_api_key_here"

const res = await fetch('https://api.apiverve.com/v1/madlibs?category=funny&count=1', {
  headers: { 'x-api-key': 'your_api_key_here' },
});

if (!res.ok) throw new Error(`${res.status} ${await res.text()}`);

const { data } = await res.json();
console.log(data);

import requests

res = requests.get(
    "https://api.apiverve.com/v1/madlibs?category=funny&count=1",
    headers={"x-api-key": "your_api_key_here"},
    timeout=15,
)
res.raise_for_status()

print(res.json()["data"])

package main

import (
	"fmt"
	"io"
	"net/http"
)

func main() {
	req, _ := http.NewRequest("GET", "https://api.apiverve.com/v1/madlibs?category=funny&count=1", nil)
	req.Header.Set("x-api-key", "your_api_key_here")

	res, err := http.DefaultClient.Do(req)
	if err != nil {
		panic(err)
	}
	defer res.Body.Close()

	out, _ := io.ReadAll(res.Body)
	fmt.Println(string(out))
}

Replace your_api_key_here with the key from your dashboard. When the inputs arrive as a list rather than one at a time, batch requests run up to 200 of them through this same API in a single call.

Authentication

Send your key in the x-api-key header. That is the only auth step — there is no token exchange and no per-endpoint scope to configure. Authentication covers creating, rotating and revoking keys.

401 is the only auth verdict

A 401 means the key is missing, invalid or expired. A 403 means the key is valid but not permitted here — blocked by a key restriction or an IP allow-list. Running out of credits is a 429.

Parameters

Sent in the query string. Premium parameters are accepted on every plan but only take effect on plans that include them.

Parameter	Type	Description
`category`OptionalPremium	string	Story category `randomadventurefunnyfairytalescifiromancehorror` default random
`count`OptionalPremium	integer	Number of stories default 1 · range 1–5

Response

Every API returns the same three top-level keys, so one response handler covers your whole integration: status, error and data. Only data changes shape. Response format covers the envelope, the other output formats and how premium fields are withheld.

Sample response

{
  "status": "ok",
  "error": null,
  "data": {
    "stories": [
      {
        "title": "Restaurant Disaster",
        "template": "I went to a {adjective} restaurant called The {adjective} {noun}. The waiter was a {adjective} {animal} who kept {verb_ing} on the tables. I ordered {number} {adjective} {plural_noun} with a side of {adjective} {noun}. When the bill came, it said I owed {number} {plural_noun}!",
        "blanks": [
          {
            "id": 1,
            "type": "adjective",
            "label": "Adjective"
          },
          {
            "id": 2,
            "type": "adjective",
            "label": "Adjective"
          },
          {
            "id": 3,
            "type": "noun",
            "label": "Noun"
          },
          {
            "id": 4,
            "type": "adjective",
            "label": "Adjective"
          },
          {
            "id": 5,
            "type": "animal",
            "label": "Animal"
          },
          {
            "id": 6,
            "type": "verb_ing",
            "label": "Verb ending in -ing"
          },
          {
            "id": 7,
            "type": "number",
            "label": "Number"
          },
          {
            "id": 8,
            "type": "adjective",
            "label": "Adjective"
          },
          {
            "id": 9,
            "type": "plural_noun",
            "label": "Plural Noun"
          },
          {
            "id": 10,
            "type": "adjective",
            "label": "Adjective"
          },
          {
            "id": 11,
            "type": "noun",
            "label": "Noun"
          },
          {
            "id": 12,
            "type": "number",
            "label": "Number"
          },
          {
            "id": 13,
            "type": "plural_noun",
            "label": "Plural Noun"
          }
        ],
        "blankCount": 13,
        "category": "funny"
      }
    ],
    "count": 1,
    "category": "funny",
    "html": "<html><head><title>Mad Libs</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 800px; margin: 0 auto;}h1 {text-align: center; color: #E91E63;}.story-card {background: #fff; border: 2px solid #E91E63; padding: 25px; margin: 25px 0; border-radius: 15px;}.title {font-size: 24px; font-weight: bold; color: #E91E63; margin-bottom: 20px;}.blanks-section {background: #FCE4EC; padding: 20px; border-radius: 10px; margin-bottom: 20px;}.blanks-section h3 {margin-top: 0;}.blank-item {margin: 10px 0; display: flex; align-items: center;}.blank-label {min-width: 50px; font-weight: bold;}.blank-type {color: #666; margin-left: 10px;}.blank-input {flex: 1; padding: 8px; border: 1px solid #E91E63; border-radius: 5px; margin-left: 10px;}.story-template {line-height: 2; font-size: 16px;}.blank-marker {background: #E91E63; color: white; padding: 2px 8px; border-radius: 3px; font-weight: bold;}</style></head><body><h1>Mad Libs</h1><div class='story-card'><div class='title'>Restaurant Disaster</div><div class='blanks-section'><h3>Fill in the blanks:</h3><div class='blank-item'><span class='blank-label'>1.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>2.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>3.</span><span class='blank-type'>Noun</span><input type='text' class='blank-input' placeholder='Enter noun'></div><div class='blank-item'><span class='blank-label'>4.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>5.</span><span class='blank-type'>Animal</span><input type='text' class='blank-input' placeholder='Enter animal'></div><div class='blank-item'><span class='blank-label'>6.</span><span class='blank-type'>Verb ending in -ing</span><input type='text' class='blank-input' placeholder='Enter verb ending in -ing'></div><div class='blank-item'><span class='blank-label'>7.</span><span class='blank-type'>Number</span><input type='text' class='blank-input' placeholder='Enter number'></div><div class='blank-item'><span class='blank-label'>8.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>9.</span><span class='blank-type'>Plural Noun</span><input type='text' class='blank-input' placeholder='Enter plural noun'></div><div class='blank-item'><span class='blank-label'>10.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>11.</span><span class='blank-type'>Noun</span><input type='text' class='blank-input' placeholder='Enter noun'></div><div class='blank-item'><span class='blank-label'>12.</span><span class='blank-type'>Number</span><input type='text' class='blank-input' placeholder='Enter number'></div><div class='blank-item'><span class='blank-label'>13.</span><span class='blank-type'>Plural Noun</span><input type='text' class='blank-input' placeholder='Enter plural noun'></div></div><div class='story-template'>I went to a <span class='blank-marker'>1</span> restaurant called The <span class='blank-marker'>2</span> <span class='blank-marker'>3</span>. The waiter was a <span class='blank-marker'>4</span> <span class='blank-marker'>5</span> who kept <span class='blank-marker'>6</span> on the tables. I ordered <span class='blank-marker'>7</span> <span class='blank-marker'>8</span> <span class='blank-marker'>9</span> with a side of <span class='blank-marker'>10</span> <span class='blank-marker'>11</span>. When the bill came, it said I owed <span class='blank-marker'>12</span> <span class='blank-marker'>13</span>!</div></div></body></html>",
    "image": {
      "imageName": "25d0dd78-3ad1-4f14-a30f-f8bdd8ebcc33_madlibs.png",
      "format": ".png",
      "downloadURL": "https://storage.googleapis.com/apiverve/APIData/madlibs/25d0dd78-3ad1-4f14-a30f-f8bdd8ebcc33_madlibs.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010349&Signature=e4owJidlQu2GZKe1GSuClCNSpOX1UQkxdweeS08IVOxkNscZGNr33BdYhNSG%2BuVIZ2XdEeAc3o2%2BY2hxP01APjgqMgCe4QvHRBgbCLPUiueHaczDJ1m1ZBI41aRaYjM8kdB7M0iYLNhdgqogXTYs9Zc%2FaRj9a6txpLz7fb2YexgG0fXhkcZuGeCb1haQlMTHL1YZbh9zJIKgHSqMhKK3jqhf0stuIDXIWkWdiK6fbP1B2aZkomqwpbx3iQKwbhca8rwFMWjUMRN5fspY%2FRtNbS7kIWaznc07VaBloITlQktm%2FMMojDc6QSanGeegRKealslcO53diZRsdLTZvB3wAQ%3D%3D",
      "expires": 1766010349930
    }
  }
}

Response fields

Paths are relative to data. Premium fields are absent rather than zeroed on plans that do not include them, so check for presence instead of comparing to 0.

Field	Type	Example	Description
`stories`	array[1]		The generated stories, each with its template and the blanks to fill
`title`	string	`"Restaurant Disaster"`	Title of the story
`template`	string	`"I went to a {adjective} restaurant called The {adjective} {noun}. The waiter was a {adjective} {animal} who kept {verb_ing} on the tables. I ordered {number} {adjective} {plural_noun} with a side of {adjective} {noun}. When the bill came, it said I owed {number} {plural_noun}!"`	Story template with numbered blanks
`blanks`	array[13]		Array of blank types and labels to fill in
`id`	number	`1`	Position of this blank in the story
`type`	string	`"adjective"`	Part of speech the blank expects, such as adjective or noun
`label`	string	`"Adjective"`	Human-readable prompt for the blank
`blankCount`	number	`13`	How many blanks the story has
`category`	string	`"funny"`	Category the story belongs to
`count`	number	`1`	Number of stories returned
`category`	string	`"funny"`	Category of the generated story
`html`	string	"<html><head><title>Mad Libs</title><style>body {font-family: Arial, sans-serif; padding: 20px; max-width: 800px; margin: 0 auto;}h1 {text-align: center; color: #E91E63;}.story-card {background: #fff; border: 2px solid #E91E63; padding: 25px; margin: 25px 0; border-radius: 15px;}.title {font-size: 24px; font-weight: bold; color: #E91E63; margin-bottom: 20px;}.blanks-section {background: #FCE4EC; padding: 20px; border-radius: 10px; margin-bottom: 20px;}.blanks-section h3 {margin-top: 0;}.blank-item {margin: 10px 0; display: flex; align-items: center;}.blank-label {min-width: 50px; font-weight: bold;}.blank-type {color: #666; margin-left: 10px;}.blank-input {flex: 1; padding: 8px; border: 1px solid #E91E63; border-radius: 5px; margin-left: 10px;}.story-template {line-height: 2; font-size: 16px;}.blank-marker {background: #E91E63; color: white; padding: 2px 8px; border-radius: 3px; font-weight: bold;}</style></head><body><h1>Mad Libs</h1><div class='story-card'><div class='title'>Restaurant Disaster</div><div class='blanks-section'><h3>Fill in the blanks:</h3><div class='blank-item'><span class='blank-label'>1.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>2.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>3.</span><span class='blank-type'>Noun</span><input type='text' class='blank-input' placeholder='Enter noun'></div><div class='blank-item'><span class='blank-label'>4.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>5.</span><span class='blank-type'>Animal</span><input type='text' class='blank-input' placeholder='Enter animal'></div><div class='blank-item'><span class='blank-label'>6.</span><span class='blank-type'>Verb ending in -ing</span><input type='text' class='blank-input' placeholder='Enter verb ending in -ing'></div><div class='blank-item'><span class='blank-label'>7.</span><span class='blank-type'>Number</span><input type='text' class='blank-input' placeholder='Enter number'></div><div class='blank-item'><span class='blank-label'>8.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>9.</span><span class='blank-type'>Plural Noun</span><input type='text' class='blank-input' placeholder='Enter plural noun'></div><div class='blank-item'><span class='blank-label'>10.</span><span class='blank-type'>Adjective</span><input type='text' class='blank-input' placeholder='Enter adjective'></div><div class='blank-item'><span class='blank-label'>11.</span><span class='blank-type'>Noun</span><input type='text' class='blank-input' placeholder='Enter noun'></div><div class='blank-item'><span class='blank-label'>12.</span><span class='blank-type'>Number</span><input type='text' class='blank-input' placeholder='Enter number'></div><div class='blank-item'><span class='blank-label'>13.</span><span class='blank-type'>Plural Noun</span><input type='text' class='blank-input' placeholder='Enter plural noun'></div></div><div class='story-template'>I went to a <span class='blank-marker'>1</span> restaurant called The <span class='blank-marker'>2</span> <span class='blank-marker'>3</span>. The waiter was a <span class='blank-marker'>4</span> <span class='blank-marker'>5</span> who kept <span class='blank-marker'>6</span> on the tables. I ordered <span class='blank-marker'>7</span> <span class='blank-marker'>8</span> <span class='blank-marker'>9</span> with a side of <span class='blank-marker'>10</span> <span class='blank-marker'>11</span>. When the bill came, it said I owed <span class='blank-marker'>12</span> <span class='blank-marker'>13</span>!</div></div></body></html>"	The stories rendered as a standalone HTML page
`image`	object	`{...}`
`imageName`	string	`"25d0dd78-3ad1-4f14-a30f-f8bdd8ebcc33_madlibs.png"`
`format`	string	`".png"`
`downloadURL`	string	"https://storage.googleapis.com/apiverve/APIData/madlibs/25d0dd78-3ad1-4f14-a30f-f8bdd8ebcc33_madlibs.png?GoogleAccessId=635500398038-compute%40developer.gserviceaccount.com&Expires=1766010349&Signature=e4owJidlQu2GZKe1GSuClCNSpOX1UQkxdweeS08IVOxkNscZGNr33BdYhNSG%2BuVIZ2XdEeAc3o2%2BY2hxP01APjgqMgCe4QvHRBgbCLPUiueHaczDJ1m1ZBI41aRaYjM8kdB7M0iYLNhdgqogXTYs9Zc%2FaRj9a6txpLz7fb2YexgG0fXhkcZuGeCb1haQlMTHL1YZbh9zJIKgHSqMhKK3jqhf0stuIDXIWkWdiK6fbP1B2aZkomqwpbx3iQKwbhca8rwFMWjUMRN5fspY%2FRtNbS7kIWaznc07VaBloITlQktm%2FMMojDc6QSanGeegRKealslcO53diZRsdLTZvB3wAQ%3D%3D"
`expires`	number	`1766010349930`

Errors

Read the HTTP status first, then error for the specific reason. The body names the parameter that has to change. Error handling covers the full status list and which of them are worth retrying.

Status	Meaning	What to do
`400`	Input was rejected	Read `error`; it names the parameter.
`401`	Key missing or invalid	Check the header name and the key value.
`403`	Key valid, but not permitted	A key restriction or IP allow-list; see key scoping.
`429`	Rate limited, or out of credits	Read `error` to tell them apart; see rate limits.

Use cases

Party Entertainment: Create hilarious mad libs for parties and gatherings
Education: Teach parts of speech through interactive story creation
Creative Writing: Spark creativity with randomized story prompts
Family Activities: Generate wholesome entertainment for all ages

Other ways to use Mad Libs Generator

Set up Mad Libs Generator on APIVerve, or reach the same source a different way. Your APIVerve account and credits work on all of them — one key, one balance.

Give it to an AI agentConnect over MCP and your agent calls it as a native tool — Claude, Cursor, ChatGPT.VerveKit →Reference →

Mad Libs Generator