---
title: "ECB Key Interest Rates: Deposit, Refinancing, Marginal Lending"
method: GET
path: "/v1/ecb-key-rates"
tags: ["ECB"]
---

# ECB Key Interest Rates: Deposit, Refinancing, Marginal Lending

`GET /v1/ecb-key-rates`

## Request

- Base URL: `https://api.ambolt.dev`
- URL: `https://api.ambolt.dev/v1/ecb-key-rates`
- Auth: none required

The three ECB key interest rates with their latest change dates and recent history. Data only, not advice.

## Query parameters

- `history` integer: Number of most recent rate observations per series.
- `free` '1'

## Response `200`

Result (JSON). Every result names its source and the time it was read.

- object

## Other responses

- `400`: Invalid input; not charged.
- `402`: Payment required: 0.003 USD in USDC (x402 v2).

---

[API](https://skmtc.dev/ambolt/apis/ambolt-data-tools.md) · [All operations](https://skmtc.dev/ambolt/apis/ambolt-data-tools/llms.txt) · [OpenAPI document](https://skmtc.dev/ambolt/apis/ambolt-data-tools/revisions/8397885dd82f?raw)