ItsThisForThat API

Free API that returns a random 'it is X for Y' startup pitch as JSON. No key needed. Includes the content-type gotcha and a real captured response.

No API key requiredHTTPSFree tier

Endpoint tested and returned HTTP 200 on 21 Aug 2026

What is the ItsThisForThat API?

ItsThisForThat generates random startup pitches in the classic 'it is X for Y' format. `GET https://itsthisforthat.com/api.php?json` returns `{"this": "...", "that": "..."}` with no API key required.

Every pitch deck ever written contains the phrase 'it is Uber for something'. This API automates the joke, pairing a random technology with a random industry and returning both halves separately so you can format the sentence however you like. Keeping `this` and `that` as separate fields rather than one pre-joined string is a small design decision that makes the API genuinely reusable.

There is one trap worth knowing. The response is valid JSON but is served as `text/javascript`, a leftover from the days when this endpoint was consumed via JSONP. Strict HTTP clients that switch parsers on the content type will hand you a string instead of an object, so parse the body explicitly rather than relying on automatic detection. The endpoint also sends no CORS header, so browser calls need a proxy.

Quick facts

Base URL: https://itsthisforthat.com
Authentication: No key required. The query string flag, not a header, selects the output format.
Rate limit: Not published. It is a tiny hobby endpoint, so cache anything you fetch.
Pricing: Free.
CORS: Not enabled — call it from your server
Official docs: Read the docs

How to use the ItsThisForThat API

Every request below was executed against the live API on 21 Aug 2026, and the response shown is the real body it returned — not an illustration.

1. Fetch a random pitch as JSON

GET https://itsthisforthat.com/api.php?json

curl

curl 'https://itsthisforthat.com/api.php?json'

JavaScript (fetch)

const res = await fetch("https://itsthisforthat.com/api.php?json");
if (!res.ok) throw new Error(`Request failed: ${res.status}`);
const data = await res.json();
console.log(data);

Python (requests)

import requests

res = requests.get("https://itsthisforthat.com/api.php?json", timeout=20)
res.raise_for_status()
print(res.json())

Response — HTTP 200

{
  "this": "Tesseract OCR engine",
  "that": "Fast Casual Restaurants"
}

Parameters

Parameter	Type	Required	Description
`json`	flag	Optional	Valueless flag that switches the response to JSON. Without it you get plain text. `json`
`text`	flag	Optional	Valueless flag that returns a plain-text sentence instead of the two fields. `text`

Response fields

thisstring: The technology or product half of the pitch, for example `Tesseract OCR engine`.
thatstring: The market or industry half, for example `Fast Casual Restaurants`. Join the two yourself: the API never returns a formed sentence in JSON mode.

What you can build with the ItsThisForThat API

Generate joke content for a slide, newsletter or conference talk
Seed a brainstorming exercise with deliberately absurd product framings
Fill a placeholder card component with varying text lengths during layout testing
Build a Slack or Discord slash command that produces a pitch on demand
Demonstrate parsing JSON that arrives with a misleading content type

Common errors and how to fix them

Parsed as a string, not an object

The response is served as `text/javascript`, so some clients skip JSON parsing.

Fix: Call your JSON parser explicitly on the response body instead of relying on content-type sniffing.

CORS error in the browser

No `Access-Control-Allow-Origin` header is sent.

Fix: Fetch it from your own server and forward the result.

Plain text when you expected JSON

The `json` flag was dropped, often by a URL builder that strips valueless query parameters.

Fix: Ensure the literal `?json` survives; some HTTP clients need it passed as `json=` instead.

ItsThisForThat API — frequently asked questions

Is the ItsThisForThat API free?

Yes, with no key or signup. It is a long-running hobby project, so treat its availability as best-effort.

Why does it return text/javascript?

The endpoint predates widespread CORS support and was designed for JSONP. The body is valid JSON; only the declared content type is legacy.

Can I get a full sentence instead of two fields?

Yes, use `?text` instead of `?json`. That returns a formed sentence as plain text, which is easier if you are piping it into a chat bot.

Is the output ever offensive?

The word lists are mild and product-focused, but they are randomly paired, so review the output before putting it in front of a client.

Tools that pair with this API

Random Text Generator

Generate random strings with custom length and character sets, or random words from a built-in list. Great for test data, IDs and placeholders.

Random Word Generator

Generate random English words filtered by part of speech, length and starting letter. Draw unique words or allow repeats, then copy or download the list.

JSON Formatter

Format, beautify and minify JSON online with 2-space, 4-space or tab indentation. Sort keys alphabetically and catch syntax errors instantly — free and private.

Alternatives to ItsThisForThat API

If ItsThisForThat does not fit, these developer & testing apis cover similar ground. Every one was called before publishing, and each links to its own reference page with a working curl command and the response it returned.

API	What it does	Auth	CORS	Last verified
GitHub REST API	GitHub REST API with no key for public data: repository details, users, issues, releases and commits. 60 req/hour unauthenticated, 5,000 with a token.	No key	Yes	19 Aug 2026
JSONPlaceholder	Free fake REST API for testing and prototyping. Posts, comments, users and todos with full GET, POST, PUT and DELETE support. No key. Real curl examples.	No key	Yes	19 Aug 2026
Postman Echo	Postman Echo reflects your HTTP request back as JSON: headers, body, query params and auth. Free, no key, ideal for debugging clients. Real POST example.	No key	No	19 Aug 2026
DummyJSON	Free fake REST API with realistic products, users, carts, recipes and auth. Supports search, pagination, sorting and POST. No key. Tested GET and POST examples.	No key	Yes	19 Aug 2026
jsDelivr	Free jsDelivr data API with no key: npm and GitHub package versions, file listings, dist-tags and CDN usage statistics. CORS enabled. Tested curl example.	No key	Yes	19 Aug 2026
JSON Schema Store	Fetch the catalogue that maps config filenames to JSON Schemas, the same one VS Code and JetBrains IDEs use. No key. Verified example and integration notes.	No key	Yes	21 Aug 2026

All Developer & Testing APIs

ItsThisForThat is an independent third-party service and is not affiliated with ByteTools or ByteVancer. Details on this page were verified on 21 Aug 2026; always check the official documentation before relying on this API in production, as terms and limits can change.