Vellium & Co

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PreReason

Copper through a copper futures fund. CPER's share price and the World Bank's monthly average LME copper price per metric ton, speculators' net position in COMEX copper futures (CFTC), and the dollar and gold funds beside it, each with its

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Our latest check (2026-10-11)

Answering
Yes — valid x402 payment terms
Time to answer
276 ms
Price
$0.030 per call
Paying buyers, last 30 days
1 (directory's own records)
Paid calls, last 30 days
2
Category
Stock prices
Address
https://api.prereason.com/api/commodities/copper

Accuracy: paid answers checked against an independent record

Not yet in our paid checks. A seller we have not checked has neither passed nor failed.

For agents

This page as JSON: /sellers/63241abe6e65.json. Paid lookup by address: GET /api/seller?resource=… ($0.001, x402).

Sellers can see the evidence behind their checks and ask for a re-check at [email protected].