Currency exchange rate data API (open.er-api.com)
Get told when a new site ships with ExchangeRate-API.
Stackdar watches every launch we detect and sends you the ones using ExchangeRate-API, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work377 sites
306 found by StackScope, 71 via launch platforms
- StackScope Discovery (Indie) 159
- StackScope Wider Web 147
- Product Hunt 62
- Other 5
- PeerPush 4
ExchangeRate-API has been detected on 377 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: TripAgit - 나만의 세계여행 플래너, today.
It's most commonly paired with HSTS, Tailwind CSS, and Google Fonts. By product type, the launches using it are most often Finance (27%), Productivity (18%), and Crypto (18%). The 68 scored launches using ExchangeRate-API average a StackScope score of 9.1 out of 10, against 6.4 across all launches we score.
What kind of products ship with ExchangeRate-API
214 launches
Domain endings using ExchangeRate-API
377 sites
- .com 51.72%
- .app 14.06%
- .xyz 3.45%
- .in 3.18%
- .io 3.18%
- .online 2.65%
- .net 2.12%
- .site 2.12%
- .tech 1.86%
- .me 1.59%
- .org 1.59%
- .co 1.33%
- .store 1.33%
Country
25 of 377 sites, where we are semi-confident of the country.
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India 32.00%
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Canada 8.00%
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United Kingdom 8.00%
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Malaysia 8.00%
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Philippines 8.00%
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Switzerland 4.00%
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Spain 4.00%
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France 4.00%
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Italy 4.00%
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South Korea 4.00%
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Nigeria 4.00%
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Netherlands 4.00%
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Sweden 4.00%
Share of new sites using ExchangeRate-API
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before June 2026.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
API leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
|
0.29% | 36.21% |
| #2 | – |
|
0.23% | 28.88% |
| #3 | – |
|
0.08% | 10.31% |
| #4 | ▲2 |
|
0.03% | 3.84% |
| #5 | – |
|
0.03% | 3.60% |
| … | ||||
| #8 | – |
|
0.01% | 1.78% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any API tool. All 150 in API →
Recent launches we can show
230 of the 377 sites using ExchangeRate-API are product launches we list individually. The other 147 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
Receivo
Finance
Showing the most recent 12 of 230.
The StackScope API serves all 377 sites using ExchangeRate-API, filterable and exportable, from £15 a month.