Save 69% with UniRateAPI. Get 593 currencies including forex, crypto & precious metals in one unified API.
You need precious metals or a single key that covers crypto + forex without paying Polygon's crypto add-on. UniRate's $9 Starter-equivalent is 3× cheaper and bundles all three asset classes.
You're building a US equities product — options, SIP-feed stocks, corporate actions. Polygon's market-data depth is what they're known for; forex is a side product for them.
Don't just compare sticker prices. Look at what you actually get for your money.
Polygon.io charges $29/mo. We offer generous limits for just $9.
Polygon.io doesn't offer precious metals. We include gold, silver, platinum, and palladium.
Polygon.io crypto data requires additional subscription. Ours is all-inclusive.
See how much you'd save by switching to UniRateAPI
Plus, you get time-series included (Polygon.io charges $0 (included free) for that)!
Head-to-head on the four fields that matter most.
| Field | UniRateAPI | Polygon.io |
|---|---|---|
| Free tier | 200 requests/day (6,000/month) | 5 calls/minute |
| Paid entry price | $9/mo — 750,000 req/mo | $29/mo — Unlimited (rate limited) req/mo |
| Rate limits / update frequency | Real-time, monthly quota (no daily cap) | Real-time |
| Historical depth | 1999-2026 | Extensive |
Polygon.io pricing last verified 2025 (Polygon.io now redirects to massive.com — rebrand in progress, pricing not re-verified April 2026).
See what you'd actually pay for comparable features
| Plan | Price | Requests | Overage Rate | Time-Series |
|---|---|---|---|---|
| Free | $0 | 5/minute | N/A | |
| Starter | $29/mo | Unlimited | N/A | |
| Developer | $79/mo | Unlimited | N/A | |
| Advanced | $199/mo | Unlimited | N/A |
To match UniRateAPI's features and request limits, you'd need Polygon.io's $29/mo plan.
| Feature | UniRateAPI | Polygon.io |
|---|---|---|
| Monthly Price | $9/mo | $29/mo |
| API Requests/Month | 750,000 | Unlimited (rate limited) |
| Time-Series Endpoint | Included | Requires $0 (included free) |
| Currencies | 593 | 1,000+ forex pairs |
| Cryptocurrency Support | 420+ | Available with add-on |
| Precious Metals | Gold, Silver, Platinum, Palladium | No |
| Free Tier | 200 requests/day | 5 calls/minute |
| Historical Data | 1999-2026 | Extensive |
Polygon.io doesn’t cover all four LBMA metals in one key. UniRateAPI does — live XAU/XAG/XPT/XPD spot, 36–58 years of history, $9/mo bundled with forex and crypto.
UniRateAPI offers more value, better features, and lower costs compared to Polygon.io.
Our $9/mo plan vs Polygon.io's $29 Starter. Same quality data, lower price.
Polygon.io has no precious metals. We include gold, silver, platinum, and palladium.
Polygon.io charges extra for crypto. Our 420+ cryptocurrencies are included in base price.
Polygon.io is primarily a stock market API. We're built specifically for currencies.
Here's what you might be missing with Polygon.io:
Switching from Polygon.io to UniRateAPI is straightforward. Our REST API follows industry standards, making migration simple.
Create your account in seconds, no credit card required.
Your API key is generated instantly upon registration.
Simply update your API endpoint and start using UniRateAPI.
Curated by relevance to Polygon.io — same category or closest competitor set.
Join thousands of developers who chose UniRateAPI for reliable, affordable currency data.