Updated March 2026 · 8 min read
Best Fixer.io Alternatives: Currency Exchange Rate APIs for Developers in 2026
Fixer.io was once the go-to free currency API, but after being acquired by APILayer (now Apilayer/Currencylayer), its free tier became more restrictive and pricing increased. Many developers have been looking for alternatives that offer better free tiers, more reliable uptime, and simpler pricing. Here are the best options available in 2026.
| API | Free Tier | Currencies | Update Frequency | Price (Paid) |
|---|---|---|---|---|
| Strongwell Currency/FX | 1,000 req/month | 170+ | Every 15 min | $0.002/req |
| Fixer.io | 100 req/month | 170+ | Hourly (free) | From $9.99/mo |
| ExchangeRate-API | 1,500 req/month | 161 | Daily (free) | From $4.99/mo |
| Open Exchange Rates | 1,000 req/month | 200+ | Hourly | From $12/mo |
| CurrencyAPI.com | 300 req/month | 170+ | Daily (free) | From $9.99/mo |
| FreeCurrencyAPI | 5,000 req/month | 32 | Daily | From $9.99/mo |
Why Developers Leave Fixer.io
Fixer.io built its reputation as a free, reliable exchange rate API backed by the European Central Bank. But since the Apilayer acquisition, developers have reported several pain points:
- Reduced free tier — from generous limits to just 100 requests/month on the free plan
- HTTPS only on paid plans — the free tier was historically HTTP-only, a security concern
- Base currency locked on free tier — EUR-only base currency unless you upgrade
- Complex pricing tiers — multiple plan levels with feature gating
- Reliability concerns — some developers report occasional downtime and slow responses
If any of these issues affect your project, here are the best alternatives.
1. Strongwell Currency/FX API — Best for API-First Developers
Strongwell's Currency/FX API runs on Cloudflare Workers, delivering exchange rate data from the network edge with sub-200ms response times globally. It supports 170+ currencies with rates updated every 15 minutes — significantly fresher than most competitors' free tiers.
The API is dead simple: GET request with your base and target currencies, receive a JSON response with the current rate, timestamp, and metadata. No complex authentication flows, no dashboard required.
At 1,000 free requests per month with no credit card required, it's generous enough for development, testing, and small production apps. Paid usage is $0.002 per request — roughly 80% cheaper than Fixer.io's equivalent tier.
- Pros: Fastest response times, freshest free-tier data, any base currency on free tier, simple API
- Cons: No historical data (yet), newer service
2. ExchangeRate-API — Best Free Tier for Basic Needs
ExchangeRate-API offers a straightforward currency conversion API with a decent free tier of 1,500 requests per month. Their API design is clean and easy to use, making it a solid choice for hobby projects and prototypes.
The free tier updates daily (not real-time), which is fine for many use cases like e-commerce price display or travel apps. Paid plans start at $4.99/month for hourly updates and higher limits.
- Pros: Generous free tier, simple API, affordable paid plans, good documentation
- Cons: Daily updates only on free tier, limited historical data on cheaper plans
3. Open Exchange Rates — Best for Comprehensive Data
Open Exchange Rates has been around since 2012 and offers one of the most comprehensive currency data sets available. With 200+ currencies and hourly updates, it's a reliable choice for production applications that need accurate, timely data.
Their free tier offers 1,000 requests/month but is USD-base-only. Paid plans start at $12/month for any base currency and time-series data. The API is well-documented with official libraries for most languages.
- Pros: Widest currency coverage, historical data, mature and reliable, good documentation
- Cons: USD-only on free tier, higher starting price for paid plans
4. CurrencyAPI.com — Solid Middle Ground
CurrencyAPI.com offers a modern, well-designed API with 170+ currencies. Their free tier includes 300 requests per month with daily updates. Paid plans unlock minute-by-minute updates and historical data.
The API returns clean JSON with helpful metadata. Documentation is good, and they provide code examples for all major languages. Pricing is competitive at $9.99/month for the basic paid tier.
5. FreeCurrencyAPI — Best for Ultra-Simple Use Cases
FreeCurrencyAPI lives up to its name with 5,000 free requests per month — the highest on this list. The catch: they only support 32 currencies, which covers most major currencies but won't work if you need exotic pairs.
If your app only needs USD, EUR, GBP, JPY, and other major currencies, this is a cost-effective option. The API is minimal and fast.
Feature Comparison
Real-Time vs. Daily Updates
For e-commerce, invoicing, or financial applications, real-time rates matter. Fixer.io offers hourly updates on paid plans. Strongwell provides 15-minute updates on all tiers. ExchangeRate-API and CurrencyAPI are daily-only on free plans.
Historical Data
If you need historical exchange rates for charts, analysis, or audit trails, Open Exchange Rates and Fixer.io offer the deepest historical data sets. Strongwell currently focuses on real-time data with plans to add historical endpoints.
Base Currency Flexibility
Many free tiers lock you to EUR or USD as the base currency. Strongwell and ExchangeRate-API allow any base currency on their free tiers — a significant advantage for international projects.
Our Recommendation
For most developers, Strongwell Currency/FX API is the best Fixer.io alternative. It offers the freshest data (15-minute updates), the fastest response times (edge-deployed), any base currency on the free tier, and the lowest per-request pricing.
If you need historical data or deep analytics, Open Exchange Rates is the mature choice. For the highest free request count and simple needs, FreeCurrencyAPI works well.
Try Strongwell Currency/FX API — Free
1,000 free requests/month. 170+ currencies. 15-minute updates. No credit card.
Get Started Free →Pricing and features accurate as of early 2026. Always verify current rates directly with each provider.