Fetch reliable FX exchange rates with Frankfurter and open.er-api

by Matchaccino Studio · 57 views · created 2026-01-07 · Engineering

What this workflow does

This workflow has 24 nodes and runs manually, when you click “Execute workflow” (plus 1 other trigger). It uses only n8n's built-in nodes. It also calls api.frankfurter.dev over HTTP.

How it runs

Trigger: Manually, when you click “Execute workflow” (plus 1 other trigger).

1. Set Currencies (Edit Fields (Set)): sets 3 fields: trim, baseCurrency, currencies
2. Validate & Normalize Inputs (Code): runs custom JavaScript code
3. If: checks a condition and branches into true / false
4. Initialize FX State + Static Rates (Code): runs custom JavaScript code
5. Stop and Error: stops the run with an error
6. Initialize Coverage Tracking (Code): runs custom JavaScript code
7. Frankfurter (HTTP Request): calls api.frankfurter.dev
8. If: checks a condition and branches into true / false
9. Normalize Frankfurter (Code): runs custom JavaScript code
10. Handle Wrong Base (Code): runs custom JavaScript code

…plus 11 more steps. See the full node list below.

HTTP calls to: api.frankfurter.dev

Before you upgrade to n8n 3.0

Nodes used (8)

• Edit Fields (Set)n8n-nodes-base.set
• Ifn8n-nodes-base.if
• Stop and Errorn8n-nodes-base.stopAndError
• HTTP Requestn8n-nodes-base.httpRequest
• Coden8n-nodes-base.code
• Execute Workflow Triggern8n-nodes-base.executeWorkflowTrigger
• Manual Triggern8n-nodes-base.manualTrigger
• No Operation, do nothingn8n-nodes-base.noOp

From the author

This workflow fetches foreign exchange (FX) rates using multiple public APIs. It validates all inputs, queries providers sequentially, and merges results into a single enforced output schema. The workflow is designed to guarantee complete coverage for the…

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