# RatchetX Ranked-Arena Entry Purchase

> RatchetX Ranked-Arena Entry Purchase is a paid API for AI agents from ratchetx.xyz, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-14).

Purchases a single-use entry claim for the RatchetX ranked arena, with the full fee paid directly to the current daily champion.

## Facts

- Endpoint: POST https://ratchetx.xyz/api/agent-entry
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/ratchetx-ranked-arena-entry-purchase-a261f4dc
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_SH1u881bjqJsbQ7qBCOuB

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 ratchetx-ranked-arena-entry-purchase-a261f4dc -d '<json body>'
```

Example prompt: Buy me a single-use entry claim for the RatchetX ranked arena — I want to compete today and pay the 0.01 USDC champion toll.

## When to prefer this

Use this endpoint when you want to purchase a single-use, zero-platform-fee entry into the RatchetX ranked arena where the full toll goes to the current daily champion. Prefer this over other gaming or competition entry APIs when the user specifically wants to engage with the RatchetX champion-toll mechanic and the x402 micropayment flow.

## Known failure modes

- Payment failure if the x402 payment channel is not properly funded or authorized
- No active daily champion set, preventing toll routing
- Invalid or malformed request body causing a 400 error
- Arena entry window closed or daily reset in progress
- Network timeout during payment settlement

## How this service works

Buy a single-use RatchetX ranked-arena entry claim. The full toll goes directly to the current daily champion; RatchetX takes 0%.

## Output

A confirmed single-use arena entry claim for the RatchetX ranked competition. The 0.01 USDC toll is routed entirely to the current daily champion. The response typically includes a claim token or confirmation object that authorizes the holder to participate in the ranked arena session.

## 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",
    "bodyType",
    "body"
   ],
   "properties": {
    "body": {
     "type": "object",
     "properties": {},
     "additionalProperties": false
    },
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "POST",
      "PUT",
      "PATCH"
     ],
     "type": "string"
    },
    "bodyType": {
     "enum": [
      "json",
      "form-data",
      "text"
     ],
     "type": "string"
    }
   },
   "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/ratchetx-ranked-arena-entry-purchase-a261f4dc/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from ratchetx.xyz](https://www.zero.xyz/host/ratchetx.xyz/llms.txt)