💰 Track Daily Fiat & Crypto Exchange Rates Report with ExchangeRate-API & CoinGecko
A simple, reliable workflow that emails you a beautiful HTML currency report every morning at 8:00 AM (your n8n server’s timezone).
It pulls USD→EUR and USD→NGN fiat rates and BTC/ETH prices (+ 24h % change), then formats a clean HTML email.
📌 What It Does
- ⏰ Schedule: Runs daily at 8:00 AM
- 🌍 Fiat Rates: USD→EUR and USD→NGN (via ExchangeRate-API, no key needed)
- ₿ Crypto: BTC & ETH prices + 24h change (via CoinGecko, no key needed)
- ✉️ Email: Sends a mobile-friendly HTML + plain text fallback
🗺️ Node Map (At a Glance)
| Node Name | Type | Purpose
---|---|---|---
1 | Daily 8AM Trigger | Schedule Trigger | Fires every day at 08:00
2 | Get Fiat Exchange Rates | HTTP Request | https://api.exchangerate-api.com/v4/latest/USD
3 | Get Crypto Prices | HTTP Request | CoinGecko simple price endpoint
4 | Merge | Merge | Combines fiat + crypto responses
5 | Format Email Content | Code (v2) | Builds HTML + text, sets subject & summary
6 | Send Daily Currency Email | Email Send | Sends the HTML email via SMTP
📝 Sticky Notes in the canvas explain each section. They’re optional and safe to delete.
⚙️ Required Setup
1) Schedule Time
- Open Daily 8AM Trigger → set cron to 08:00 daily.
Suggested cron: 0 8 * * * (server local time; if you’re in Lagos, ensure server timezone matches Africa/Lagos or adjust accordingly).
2) SMTP Credentials
- Open Send Daily Currency Email → set:
- From Email : your sender (e.g.
[[email protected]](/cdn-cgi/l/email-protection))
- To Email : recipient address
- Credentials : select your SMTP account
- Gmail tip: use App Passwords (with 2FA enabled).
- Server:
smtp.gmail.com
- Port:
587 (STARTTLS) or 465 (SSL)
- Auth: your full Gmail address + app password
3) API Access
- Both endpoints are free & no API key :
- Fiat (USD base):
https://api.exchangerate-api.com/v4/latest/USD
- Crypto (BTC/ETH):
https://api.coingecko.com/api/v3/simple/price?ids=bitcoin,ethereum&vs_currencies=usd&include_24hr_change=true
🧩 Input Order
The Format Email Content node is written to auto-detect which input is fiat vs crypto, so the Merge order doesn’t matter. A clean pattern is:
- Get Crypto Prices → Merge (Input 1)
- Get Fiat Exchange Rates → Merge (Input 2)
- Merge → Format Email Content → Send Daily Currency Email
🚀 Test It Quickly
- Run Get Fiat Exchange Rates → verify
rates.EUR and rates.NGN exist.
- Run Get Crypto Prices → verify BTC/ETH
usd and usd_24h_change.
- Run Format Email Content → check it outputs
subject, html, text.
- Run Send Daily Currency Email → confirm the styled report arrives.
🎛 Customize
- Currencies: Add more fiat codes from
rates (e.g., GBP, ZAR) and extend the HTML template.
- Coins: Add
ids= in CoinGecko (e.g., bitcoin,ethereum,solana) and render extra cards.
- Send time: Adjust the cron (e.g.,
30 7 * * * for 7:30 AM).
- Branding: Edit colors, fonts, and header gradient in the HTML string.
- Timezone stamp: Change the display timezone inside the Code node if needed.
🧩 Common Pitfalls & Fixes
- Email not styled: Ensure the Email node is set to HTML format.
- Gmail auth fails: Use an App Password and port 587 with STARTTLS.
- Empty values: Run the two HTTP nodes once and confirm the responses contain data.
- Rate limits: If you increase frequency, consider adding a short Wait node or caching.
