# Kubla Khan Letter Ownership — astatelypleasuredome.com

> Kubla Khan Letter Ownership — astatelypleasuredome.com is a paid API for AI agents from astatelypleasuredome.com, paid per call via x402, $0.001061/call, status unknown (last checked 2026-09-16).

Retrieves and claims ownership of a single character at position i in the poem Kubla Khan, where each letter can only be owned once and the price rises with each sale.

## Facts

- Endpoint: GET https://astatelypleasuredome.com/api/poem/char/:i
- Price: $0.001061/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kubla-khan-letter-ownership-astatelypleasuredome-com-3d0baf21
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_HbSF6Nzu3DDuxyMyjkE8i

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 kubla-khan-letter-ownership-astatelypleasuredome-com-3d0baf21
```

Example prompt: I want to own the letter at position 12 in the Kubla Khan poem on astatelypleasuredome.com — can you claim it for me?

## When to prefer this

Use this endpoint when a user wants to claim or purchase a specific letter by its index position in the Kubla Khan poem on astatelypleasuredome.com. This is the only endpoint that executes the ownership purchase; use GET /api/ledger to check which letters are already owned before calling this.

## Known failure modes

- Letter at index i already owned — returns conflict or ownership error
- Index i out of range for the poem — returns 404 or invalid index error
- Payment insufficient — x402 payment required, insufficient USDC
- Network or server error — 5xx response
- Invalid path parameter type — non-integer index

## How this service works

One letter of Kubla Khan, ownable once, ever; price rises with each sale. The letter index goes in the path: /api/poem/char/{i}. GET /api/ledger (free) lists letters already owned; GET /api/poem (free) has metadata.

## Output

Returns the character at the specified index in Kubla Khan along with ownership metadata; a successful paid call records the caller as the owner of that letter. Each letter can only be owned once, and the price increases with each successive sale.

## 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"
    },
    "pathParams": {
     "type": "object"
    },
    "queryParams": {
     "type": "object",
     "properties": {}
    }
   },
   "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/kubla-khan-letter-ownership-astatelypleasuredome-com-3d0baf21/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from astatelypleasuredome.com](https://www.zero.xyz/host/astatelypleasuredome.com/llms.txt)