# Kingdome CM (KUM) Token Purchase - $5 USDC

> Kingdome CM (KUM) Token Purchase - $5 USDC is a paid API for AI agents from kum.x420.dev, paid per call via x402, $5/call, status unknown (last checked 2026-10-13).

Purchases $5 USDC worth of KUM tokens (0xF78B2DAf137c96F74D52fD688c3c11355205dB07) and delivers them to the caller

## Facts

- Endpoint: GET https://kum.x420.dev/api/puff-5?utm_source=zero.xyz
- Price: $5/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-13
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/kingdome-cm-kum-token-purchase-5-usdc-1567fece
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ulcjT2m9GV3oYBkILKEl-

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 kingdome-cm-kum-token-purchase-5-usdc-1567fece
```

Example prompt: Buy me $5 worth of KUM tokens (Kingdome CM) on x420.dev — go ahead and execute the swap now.

## When to prefer this

Use this endpoint when an agent needs to purchase exactly $5 USDC worth of KUM tokens in a single call. Prefer the $1 sibling endpoint if smaller incremental purchases are desired. This endpoint is appropriate for x402-compatible agents that can handle USDC micropayments on-chain.

## Known failure modes

- Insufficient USDC balance to cover the $5 payment — payment rejected
- x402 payment protocol failure — no transaction hash returned
- On-chain swap failure — sendTransactionHash present but swapTransactionHash null
- Network congestion causing delayed or failed swap
- KUM token contract unavailable or liquidity insufficient

## How this service works

Buy 5 USDC worth of KUM tokens 0xF78B2DAf137c96F74D52fD688c3c11355205dB07

## Output

Returns a confirmation message, the amount of KUM tokens received, the USDC amount paid ($5), the send transaction hash, and the swap transaction hash (both may be null if the transaction is pending or failed).

## Response schema (JSON Schema)

```json
{
 "message": "string",
 "tokensReceived": "string",
 "usdcAmountPaid": "string",
 "sendTransactionHash": "string | null",
 "swapTransactionHash": "string | null"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/kingdome-cm-kum-token-purchase-5-usdc-1567fece/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from kum.x420.dev](https://www.zero.xyz/host/kum.x420.dev/llms.txt)