# Joke Categories Listing

> Joke Categories Listing is a paid API for AI agents from engedi.digi-life17.workers.dev, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-15).

Returns a list of available joke categories that can be used to browse or filter jokes

## Facts

- Endpoint: GET https://engedi.digi-life17.workers.dev/api/joke/categories
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/joke-categories-listing-353b3400
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_O85mAjK9t15rqGm6eXGSO

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability joke-categories-listing-353b3400
```

Example prompt: What joke categories are available so I can pick one to get a joke from?

## When to prefer this

Use this endpoint when you need to discover what joke types or genres are supported before requesting a specific joke, or when building a UI or agent flow that lets users choose a joke category. Best for bootstrapping a joke-fetching workflow.

## Known failure modes

- Service unavailable returning 5xx error
- Payment not processed (402 response if x402 payment header missing or invalid)
- Empty category list if upstream joke API is unreachable
- Stale data indicated by cached flag and old last_updated timestamp

## How this service works

51 REST endpoints for AI agents. Weather, news, crypto, stocks, products, courses, real estate, and 42 more. Pay per call in USDC/USDT via x402.

## Output

A list of joke category names (e.g. programming, dark, pun, misc) along with metadata about whether the result was cached, the data source, confidence score, and last updated timestamp.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "input": {
   "type": "object",
   "properties": {}
  },
  "output": {
   "type": "object",
   "properties": {
    "data": {
     "type": "object"
    },
    "_meta": {
     "type": "object",
     "properties": {
      "cached": {
       "type": "boolean"
      },
      "source": {
       "type": "string"
      },
      "confidence": {
       "type": "number"
      },
      "last_updated": {
       "type": "string"
      }
     }
    },
    "success": {
     "type": "boolean"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/joke-categories-listing-353b3400/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from engedi.digi-life17.workers.dev](https://www.zero.xyz/host/engedi.digi-life17.workers.dev/llms.txt)