# 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% going to the artist and 30% to the protocol.

## Facts

- Endpoint: POST https://honest-abundance-production-89b1.up.railway.app/api/marketplace/buy/cmpdlf9vm006wo101mahedqds?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-1877c9b5
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_aDpc6wQ-dxdQsLCL0qqfq

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-1877c9b5 -d '<json body>'
```

Example prompt: Buy me a non-exclusive ownership share of the SHARP track with ID cmpdlf9vm006wo101mahedqds — it's $2 USDC and I want to support the artist.

## When to prefer this

Use this endpoint when you want to purchase a non-exclusive ownership share of a specific known SHARP track (by track ID) for a flat $2.00 USDC gasless payment, where you want 70% of your payment to go directly to the artist. Prefer this over general NFT marketplaces when the track is listed on the SHARP platform and you want the built-in artist revenue split.

## Known failure modes

- Insufficient USDC balance — payment fails with payment required or insufficient funds error
- Invalid or unknown track ID — endpoint returns 404 or not found
- Track no longer available for purchase — marketplace listing closed
- Network or Railway deployment downtime — 502 or 503 error
- Payment processing failure in x402 protocol — transaction not confirmed

## How this service works

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

## Output

A confirmation of the non-exclusive ownership share purchase, including transaction details, the buyer's stake in the track, and confirmation of the 70% artist / 30% protocol revenue split applied to the $2.00 USDC payment.

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/sharp-marketplace-track-buy-1877c9b5/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)