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Daily Currency Rates Email Report with USD→EUR/NGN & BTC/ETH Price Tracking

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Created by: David Olusola || dae221

David Olusola

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Last update a month ago

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💰 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])
    • 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

  1. Run Get Fiat Exchange Rates → verify rates.EUR and rates.NGN exist.
  2. Run Get Crypto Prices → verify BTC/ETH usd and usd_24h_change.
  3. Run Format Email Content → check it outputs subject, html, text.
  4. 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.