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chucknorris.io

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JSON API for hand curated Chuck Norris jokes.

chucknorris.io's website screenshot

About chucknorris.io

chucknorris.io is a free JSON API that serves hand-curated Chuck Norris jokes. Endpoints allow retrieving a random joke, retrieving a random joke from a specified category, listing available categories, and performing a free-text search of jokes. Each joke response includes an icon URL, an id, a url, and the joke text.

The service also offers integrations beyond the raw API: a Slack app that responds to a `/chuck` command (with options for category selection, listing categories, free-text search, and personalizing jokes with a username), and a Facebook Messenger bot that returns a joke or help text in response to chat messages.

The API is aimed at developers who want to embed novelty content into applications, chatbots, or team-communication tools. The service is described as free, funded through sponsorship, with only minimal anonymized usage data (team and user counts) collected for the Slack integration.

Key features

  • Retrieve a random Chuck Norris joke as JSON
  • Fetch a random joke filtered by category
  • List all available joke categories
  • Free text search across jokes
  • Slack integration with slash commands (/chuck)
  • Facebook Messenger bot for jokes

Frequently asked questions

Is chucknorris.io free to use?

Yes, it is a free JSON API and the site states it is free and will always be.

What format does the API return?

It returns JSON responses, for example a random joke includes fields like icon_url, id, url, and value.

Can I filter or search jokes?

Yes, you can retrieve jokes by category, list all categories, or perform a free text search via query parameters.

Does it integrate with chat platforms?

Yes, it offers a Slack app with slash commands like /chuck and a Facebook Messenger bot.

What data does the Slack integration store?

It stores only team and user ids along with the appropriate OAuth tokens, and anonymously tracks total teams and unique users.

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