goldprice.dev vs metals-api
metals-api.com is a generalist metals + FX catalog. We're a specialist in the metals prediction-market bots resolve on.
Breadth is their thing, and they're good at it.
- →Every metal, everywhere. Full metals catalog plus FX. If you need one API key to cover the long tail of precious and industrial metals, they deliver.
- →170+ currencies. We support 13 direct (continuous spot reference) plus 164 triangulated via ECB. If your app needs gold priced in Paraguayan guaraní today, you want them, not us.
- →Fixer-compatible API shape.If you've used Fixer.io, metals-api's endpoint shape will feel familiar. Drop-in migration is realistic.
- →Long-tail industrial metals. Aluminum, zinc, nickel, rhodium, and others with 15+ years of daily bars. We ship copper as copper futures settlement settlement, but nothing beyond that.
We're not trying to be a metals catalog.
- ✓Every source visible.
sources[]in every response — live oracle XAU + XAG, continuous spot reference, gold + silver + copper futures settlement, Frankfurter, CoinMarketCap PAXG, each with license and timestamp. metals-api serves a single blended number with no provenance. - ✓live oracle + futures settlement at prediction-market prices. Polymarket + Kalshi commodity markets resolve on a live oracle spot and futures settlement. We ship gold at $10 Basic, silver + copper at $50Pro. metals-api doesn't expose live oracle or futures settlement as distinct attributed sources at any tier.
- ✓Depth across three metals. Spot, futures, differentials, ETF flows, and positioning data — for gold, silver, and copper. metals-api gives you spot and historical across every metal and stops there.
- ✓MCP on every plan. Native Model Context Protocol server with six tools. metals-api has no MCP offering.
- ✓Published methodology, source-level. Our methodology doc names the providers, licenses, and staleness thresholds. Versioned and changelogged.
- ✓No auto-bill overage. We
429you. They'll charge you. - ✓Agent-native output. Unit-annotated, staleness-flagged, symbol-canonical responses an LLM can reason about without a post-processing layer.
Head-to-head, line by line
Feature-level comparison against metals-api.com's published plans as of April 2026.
| Feature | goldprice.dev | metals-api |
|---|---|---|
| Data coverage | ||
| Gold (XAU) spot + history | ✓ | ✓ |
| Silver (XAG) spot + futures | ✓ Pro+ | ✓ |
| Copper (HG) futures | ✓ Pro+ | ✓ |
| Other industrial metals (Al, Ni, Zn…) | — | ✓ |
| Currencies supported | 13 direct · 164 triangulated | 170+ |
| Live oracle XAU/USD real-time | ✓ Basic+ | — |
| Live oracle XAG/USD real-time | ✓ Pro+ | — |
| gold futures settlement + SI settlement | ✓ Basic+ | — |
| copper futures settlement (copper) settlement | ✓ Pro+ | — |
| Spot/futures differentials | ✓ | — |
| ETF · CB · COT data | ✓ | — |
| Analytics | ||
Market-implied distribution (p25/p50/p75) via /v1/prediction-market-view | ✓ Pro+ | — |
Cross-source divergence data via /v1/prices/divergence | ✓ | — |
Cross-platform arbitrage via /v1/prediction-markets/arb | ✓ Pro+ | — |
| Developer experience | ||
| MCP server | All plans | — |
| TypeScript / live oracleon SDK | ✓ | Community |
| Published methodology (per-source provenance) | ✓ | — |
sources[] array in every response | ✓ | — |
is_stale flag | ✓ | — |
| Pricing & limits | ||
| Cheapest paid plan | $10/mo | $29/mo |
| Production plan | $50/mo | $99/mo |
| Overage policy | 429, never auto-bill | Auto-bills |
// Source: metals-api.com public pricing page + our own plans. Last verified 2026-04-20.
Who should pick which
If you need a metals catalog, go there. If gold, silver, or copper are the product — not a checkbox — come here.
You need a generalist metals + FX feed.
You're building a commodity dashboard, a metals-purchasing calculator for a manufacturer, or an FX-heavy product that happens to also quote precious metals. Breadth matters more than depth.
Gold, silver, or copper is the product, not a line item.
You're building a commodity-focused fintech, an AI agent that reasons about precious and industrial metals, a quant tool that needs basis and positioning data, or a Polymarket + Kalshi-adjacent bot where the exact resolution source matters — or you need market-implied distributions from prediction-market aggregation.