Arc Gold

Arc gold check: is your XAUm real, and can you sell it? The real Matrixdock XAUm on Arc (supply, contract evidence), every copy using a gold ticker (XAUM, XAUT, GLDx "Gold xStock"…

Overview

Arc gold check: is your XAUm real, and can you sell it? The real Matrixdock XAUm on Arc (supply, contract evidence), every copy using a gold ticker (XAUM, XAUT, GLDx "Gold xStock" with a 1,000,000,000 supply), the real XAUm market (a Uniswap v3 pool: ounces, USDC depth and price per ounce), every Uniswap v4 XAUm/USDC pool with its fee and a simulated 100 USDC round trip (buy then sell through the Arc launchpad router, nothing signed; most are fee traps), and the price per ounce you would really pay against world gold (Chainlink XAU/USD read from Ethereum). Hourly; a check older than 3 hours is refused, never served as current. Redemption with Matrixdock happens off this chain and is not covered.

Endpoint

Method	Endpoint	Price	Description
GET	/v1/marketplace/api/arc-gold	$0.00345	Invoke Arc Gold (Defi) and return the upstream response.

How to call it

Requests are paid per call over the x402 protocol. Call the endpoint, receive a 402 Payment Required quote, then repeat the request with the signed payment header. The SDKs do both steps for you.

# 1. Ask for a quote
curl -i https://api.jarvisclaw.ai/v1/marketplace/api/arc-gold

# 2. Pay it (the SDK signs and retries for you)
curl -H "X-PAYMENT: <signed-payload>" https://api.jarvisclaw.ai/v1/marketplace/api/arc-gold

Open in the marketplace