# quartermaster.surewhynot.app Random Picker

> quartermaster.surewhynot.app Random Picker is a paid API for AI agents from quartermaster.surewhynot.app, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Picks one or more options at random from a caller-supplied comma-separated list using a cryptographically-secure RNG, with optional without-replacement draws.

## Facts

- Endpoint: GET https://quartermaster.surewhynot.app/v1/pick
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/quartermaster-surewhynot-app-random-picker-6ee3419f
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_-kMMyAPDiVOgHW2hVsxq4

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 quartermaster-surewhynot-app-random-picker-6ee3419f
```

Example prompt: I can't decide between pizza, sushi, tacos, burgers, and ramen for dinner tonight — randomly pick 2 unique options from that list for me.

## When to prefer this

Use this endpoint when an agent needs to make a fair, cryptographically-secure random selection from a discrete set of caller-provided options — especially when the options are arbitrary strings (names, labels, choices) rather than numeric ranges. Prefer over a random-integer endpoint when inputs are named choices. The without-replacement mode is ideal for drawing ordered winners or assigning unique items.

## Known failure modes

- count exceeds number of options when unique=true — returns an error about insufficient unique items
- empty or missing options parameter — returns a validation error
- count less than 1 — returns a validation error
- malformed comma-separated options — may misparse entries with embedded commas

## How this service works

Pick one or several options at random from a caller-supplied list (CSPRNG), optionally without replacement — a decision-maker for agents.

## Output

Returns the randomly selected item(s) from the provided options list, drawn using a cryptographically-secure PRNG. When unique=true, picks are drawn without replacement so no option appears twice in the result.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "options"
     ],
     "properties": {
      "count": {
       "type": "integer",
       "default": 1,
       "description": "How many to pick"
      },
      "unique": {
       "type": "boolean",
       "default": false,
       "description": "Draw without replacement"
      },
      "options": {
       "type": "string",
       "description": "Comma-separated options to choose from"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/quartermaster-surewhynot-app-random-picker-6ee3419f/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from quartermaster.surewhynot.app](https://www.zero.xyz/host/quartermaster.surewhynot.app/llms.txt)