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Why Metal Sentinel

Picking a metals API is more than picking a JSON shape. You're picking a data source, a support team, a pricing model, and the surface area your product can grow into. Here's how Metal Sentinel stacks up against the alternatives developers usually consider.

At a glance

Source Refreshed every minute

Kitco-sourced spot

Licensed feed from a primary market source — not a thin layer over aggregator JSON.

Metals

10 spot-traded
Au Ag Pt Pd Rh Cu Ni Al Pb Zn

Currencies

180+

Fiat & crypto, including USD, EUR, GBP, BTC, ETH.

Surface

API + Widgets + WP plugin

All bundled, no extra plan.

Pricing

$0 to start

Generous free tier on RapidAPI — no credit card required.

How we compare

Short summary of each competitor below — open the full breakdown for feature tables, pricing notes, and migration tips.

vs.

MetalpriceAPI

metalpriceapi.com

Reliable rates, but a thinner metals catalog and no built-in widgets.

  • Kitco-sourced spot quotes refreshed every minute
  • Ten metals (precious + base) vs. precious-only on most plans
  • Drop-in HTML widgets and a WordPress plugin included

Read full comparison →

vs.

GoldAPI.io

goldapi.io

Solid for gold and silver only — limited if you need the rest of the periodic table.

  • Ten spot-traded metals, including base metals and rhodium
  • Quotes in 180+ currencies including major crypto tokens
  • Time-series and historical endpoints out of the box

Read full comparison →

vs.

Metals-API

metals-api.com

A familiar option, but support response times and free-tier limits frustrate many devs.

  • Transparent rate limits documented per RapidAPI plan
  • Free tier with no credit card requirement
  • Widgets and WordPress plugin bundled, not paid add-ons

Read full comparison →

vs.

Metals.dev

metals.dev

Clean docs, but no embeddable widgets and a smaller currency list.

  • Embeddable price widgets for any site, no build step
  • Free WordPress plugin in the official directory
  • Daily editorial coverage on the metals you quote

Read full comparison →

Try Metal Sentinel free on RapidAPI

No credit card. Spin up gold, silver, platinum, or any of our ten metals in 180+ currencies in under a minute.

Try the API