An ECB marginal lending facility API returns ECB_MLF. Interest Rates API: symbols=ECB_MLF. US 10Y stays on Bonds-API. Starter is one symbol per request.
Starter $19/mo, 7-day trial. MCP: interestratesapi.com/mcp.
Request
curl "https://interestratesapi.com/api/v1/latest?api_key=YOUR_API_KEY&symbols=ECB_MLF"
Response: live latest (2026-10-05)
{"success": true, "date": "2026-10-05", "base": "EUR", "rates": {"ECB_MLF": 2.9}, "dates": {"ECB_MLF": "2026-10-05"}, "currencies": {"ECB_MLF": "EUR"}}
Go live
1. Register — 7-day trial.
2. Copy api_key.
3. GET latest with symbols=ECB_MLF.
4. Store rates.ECB_MLF.




