# Tournament Bracket Generator

> Tournament Bracket Generator is a paid API for AI agents from x402-zoo.lolagent.workers.dev, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Generates randomized first-round single-elimination tournament pairings from a comma-separated list of participant names.

## Facts

- Endpoint: GET https://x402-zoo.lolagent.workers.dev/api/tournament-bracket
- 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/tournament-bracket-generator-01fe304b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_pLV0P2reLOacgmWd3qO9k

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 tournament-bracket-generator-01fe304b
```

Example prompt: Can you create a randomized single-elimination tournament bracket for these 8 players: Alice, Bob, Carol, Dave, Eve, Frank, Grace, Hank?

## When to prefer this

Use this endpoint when you need a quick, randomized first-round bracket from a flat list of participant names and don't need seeding, rankings, or multi-round bracket management. Ideal for casual tournaments, game nights, or demo scenarios where a pay-per-call model with no auth overhead is acceptable.

## Known failure modes

- Missing 'participants' query parameter returns an error
- Odd number of participants may result in a bye or error depending on implementation
- Fewer than 2 participants likely returns an error
- Empty participant string returns validation error
- Very large participant lists may exceed URL length limits

## How this service works

Create randomized first-round single-elimination pairings from a participant list.

## Output

Returns a structured list of first-round single-elimination matchups, pairing participants randomly into head-to-head bouts for round one of the tournament bracket.

## 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": [
      "participants"
     ],
     "properties": {
      "participants": {
       "type": "string",
       "description": "Comma-separated participants"
      }
     }
    }
   },
   "additionalProperties": false
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/tournament-bracket-generator-01fe304b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from x402-zoo.lolagent.workers.dev](https://www.zero.xyz/host/x402-zoo.lolagent.workers.dev/llms.txt)