Quick answer
CurrencyBeacon - CurrencyBeacon wins for most builders because its free tier is much larger and its paid ladder starts far cheaper, while Abstract Exchange Rate API mainly wins if you need a no-credit-card trial with a simpler entry point.
How the free tiers compare
These are both currency data APIs, but they serve different growth paths. Abstract Exchange Rate API is the smaller, stricter free tier: 500 requests per month, 1 request per second, and no credit card required. It is a better fit when you want a low-friction trial and only need to test a narrow use case. CurrencyBeacon is the more generous option for builders who expect to stay on free longer or want room to ship. Its free tier includes 5,000 requests, hourly updates, commercial use, and historical data, but it likely follows a more standard signup flow. The bigger difference is what happens after free. Abstract jumps to $99/month for 60,000 requests. CurrencyBeacon starts at $10/month for 50,000 requests, so the paid transition is much gentler.
Abstract Exchange Rate API vs CurrencyBeacon free tier, side by side
| Abstract Exchange Rate API FTV 50 | CurrencyBeacon FTV 45 | |
|---|---|---|
| Free requests / month CurrencyBeacon gives 10x more requests on the free plan. | 500 | 5,000 |
| Rate limit / update frequency The products express this differently. Abstract has a request rate limit; CurrencyBeacon lists update cadence on the free plan. | 1 request per second | Hourly updates |
| Historical data Both include historical currency data in free. | Included within free tier limits | Included |
| Commercial use CurrencyBeacon explicitly allows commercial use on the free plan. | Not stated | Allowed |
| First paid requests / month Abstract’s first paid tier starts higher in request volume but costs much more. | 60,000 | 50,000 |
After you outgrow the free tier
Abstract Exchange Rate API has a flat paid ladder with a sharp first step: Standard is $99/month for 60,000 requests and 3 requests per second, with Enterprise on custom pricing. CurrencyBeacon is also flat-priced, but its entry point is much lower at $10/month for 50,000 requests, then $99/month for 500,000 requests and $599/month for 2,000,000 requests. For small teams, CurrencyBeacon is usually cheaper by a wide margin. The main divergence is that Abstract asks you to pay a premium much earlier, while CurrencyBeacon lets you stay on a low-cost plan longer.
Cost at real usage
| Usage | Abstract Exchange Rate API | CurrencyBeacon |
|---|---|---|
| 1,000 API requests/mo Both free plans cover this volume. | Free (within tier) | Free (within tier) |
| 5,000 API requests/mo CurrencyBeacon’s free tier reaches this point exactly. | Free (within tier) | Free (within tier) |
| 20,000 API requests/mo Abstract free tier is exhausted well before this point; CurrencyBeacon’s Basic plan still covers it. | $99/mo | $10/mo |
| 100,000 API requests/mo Abstract’s Standard plan is far short of 100k requests, so you would need to contact sales or a custom arrangement if usage truly exceeds the listed tier. CurrencyBeacon’s Startup plan covers 100k requests within its 500k limit. | $99/mo | $99/mo |
Estimates, not quotes. Usage-based rates change - verify with the vendor's pricing page before committing.
When to pick each one
Pick Abstract Exchange Rate API when…
- You want to test an exchange-rate integration without entering a credit card.
- Your app only needs a few hundred requests per month and strict free-tier limits are fine.
- You care more about a low-friction trial than about getting the biggest free quota.
- You are evaluating historical and live data access before committing to a paid plan.
Pick CurrencyBeacon when…
- You need a free tier that can support real usage, not just a quick prototype.
- You want commercial use allowed on the free plan.
- You need more breathing room on request volume, such as a few thousand calls per month.
- You expect to graduate to a paid plan soon and want the cheapest entry point.
- You want a clearer ladder from small project to scaled usage without a big price jump.
Bottom line
For most builders, CurrencyBeacon is the better free-tier pick because it gives you 10x the free requests and a much cheaper first paid plan. Abstract Exchange Rate API is the better choice if your main goal is a no-credit-card evaluation and you do not need much volume. If you expect to keep using the API after launch, CurrencyBeacon’s pricing is easier to live with and its ladder is more practical for small teams.
Read the full listings: Abstract Exchange Rate API and CurrencyBeacon. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.