# SHARP Marketplace Track Buy

> SHARP Marketplace Track Buy is a paid API for AI agents from honest-abundance-production-89b1.up.railway.app, paid per call via x402, $2/call, status unknown (last checked 2026-10-11).

Purchases a non-exclusive ownership share of a specific music track on the SHARP marketplace for $2.00 USDC, with 70% revenue going to the artist and 30% to the protocol.

## Facts

- Endpoint: POST https://honest-abundance-production-89b1.up.railway.app/api/marketplace/buy/cmouf9kre00a4pd01v670l9ts?utm_source=zero.xyz
- Price: $2/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/sharp-marketplace-track-buy-a963b964
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_faD13FF-3RdqRdlpwMde2

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 sharp-marketplace-track-buy-a963b964 -d '<json body>'
```

Example prompt: Buy me a non-exclusive ownership share of track cmouf9kre00a4pd01v670l9ts on the SHARP marketplace — it's $2 USDC gasless and 70% goes straight to the artist.

## When to prefer this

Use this endpoint when an agent needs to execute a specific track purchase on the SHARP marketplace using the known track ID. Prefer this over generic NFT or music purchase endpoints when the transaction must be gasless USDC-based and supports the SHARP 70/30 artist/protocol revenue split model.

## Known failure modes

- Insufficient USDC balance — payment fails if wallet lacks $2.00 USDC
- Track not found or invalid track ID — returns 404 or equivalent error
- Payment processing failure — gasless relay may fail under network congestion
- Already owned — attempting to repurchase may return a conflict or duplicate error
- Marketplace paused — endpoint may be temporarily unavailable if the protocol is under maintenance

## How this service works

SHARP track buy — non-exclusive ownership share ($2.00 USDC, gasless). 70% to artist, 30% protocol.

## Output

A transaction confirmation indicating that a non-exclusive ownership share of the specified track has been purchased, along with payment details showing the $2.00 USDC split (70% to artist, 30% to protocol).

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sharp-marketplace-track-buy-a963b964/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from honest-abundance-production-89b1.up.railway.app](https://www.zero.xyz/host/honest-abundance-production-89b1.up.railway.app/llms.txt)