#copper

Real-time gold price API + MCP server. 8 tools: get_spot_price, list_commodities, get_metadata, get_historical, search_news, search_docs, get_prediction_market_view, get_prediction_market_arb. Pyth + WGC + CME + Stooq sources, prediction-market view layered on top. Free tier available; Pro tier ($50/mo) for futures + multi-asset (silver, copper). MCP available on every tier, no paywall on AI agent integration.

Mineral Intelligence, USGS commodity benchmarks, attested field run logs, and mining/geologic district data for AI agents. Nine data endpoints gated by x402 ($0.10 USDC on Base). Tools: get_commodity_benchmark (gold, silver, copper, and 17 more critical minerals), get_ultrasound_run_data (on-chain EAS-attested gravity-separation field runs), district.history (MRDS-sourced deposit and assay history by country/state/district), and ask_sales_agent. No API keys — pay per call in USDC.