Swiss 3-Month Interbank Rate
Swiss 3-month interbank rate (SARON-based, successor to CHF LIBOR). Source: OECD via FRED.
Country
CH
CHF
Frequency
monthly
Update cadence
Category
Interbank
Rate type
Access
REST API
JSON · CSV
Swiss 3-Month Interbank Rate is an interbank benchmark rate — the interest rate at which large financial institutions lend to each other on the short-term money market. These rates reflect the cost of liquidity in the banking system and serve as reference rates for a vast range of financial products.
Interbank rates underpin hundreds of trillions of dollars in financial contracts globally — including floating-rate loans, mortgages, interest rate swaps, and structured products. Following the LIBOR transition, overnight rates like SOFR, SONIA, and ESTR have become the new global benchmarks.
Click each endpoint to see the request URL, parameters, and a sample response.
API Request
https://interestratesapi.com/api/v1/latest?api_key=YOUR_API_KEY&symbols=SARON_3M
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| symbols | required | Comma-separated symbol codes. E.g. SARON_3M |
Sample Response
{
"success": true,
"date": "2026-05-26",
"rates": {
"SARON_3M": 4.25
},
"dates": {
"SARON_3M": "2026-05-26"
}
}
API Request
https://interestratesapi.com/api/v1/historical?api_key=YOUR_API_KEY&symbols=SARON_3M&date=2026-05-26
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| symbols | required | Symbol code(s). E.g. SARON_3M |
| date | required | Date in YYYY-MM-DD format. |
Sample Response
{
"success": true,
"historical": true,
"date": "2026-05-26",
"rates": {
"SARON_3M": 4.25
}
}
API Request
https://interestratesapi.com/api/v1/timeseries?api_key=YOUR_API_KEY&symbols=SARON_3M&start_date=2026-05-03&end_date=2026-06-02
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| symbols | required | Symbol code(s). E.g. SARON_3M |
| start_date | required | Start date (YYYY-MM-DD). |
| end_date | required | End date (YYYY-MM-DD). |
Sample Response
{
"success": true,
"symbols": [
"SARON_3M"
],
"rates": {
"2026-05-03": {
"SARON_3M": 4.25
},
"2026-06-02": {
"SARON_3M": 4.25
}
}
}
API Request
https://interestratesapi.com/api/v1/fluctuation?api_key=YOUR_API_KEY&symbols=SARON_3M&start_date=2026-05-03&end_date=2026-06-02
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| symbols | required | Symbol code(s). E.g. SARON_3M |
| start_date | required | Start date (YYYY-MM-DD). |
| end_date | required | End date (YYYY-MM-DD). |
Sample Response
{
"success": true,
"fluctuation": {
"SARON_3M": {
"start_rate": 4.25,
"end_rate": 4.37,
"change": 0.12,
"change_pct": 2.8235
}
}
}
API Request
https://interestratesapi.com/api/v1/ohlc?api_key=YOUR_API_KEY&symbols=SARON_3M&start=2026-05-03&end=2026-06-02&period=monthly
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| symbols | required | Symbol code. E.g. SARON_3M |
| start | required | Start date (YYYY-MM-DD). |
| end | optional | End date (YYYY-MM-DD). Defaults to today. |
| period | optional | Grouping: monthly (default), weekly, quarterly. |
Sample Response
{
"success": true,
"symbol": "SARON_3M",
"period": "monthly",
"ohlc": [
{
"period": "2026-05",
"open": 4.25,
"high": 4.5,
"low": 4.15,
"close": 4.37,
"data_points": 21
}
]
}
API Request
https://interestratesapi.com/api/v1/convert?api_key=YOUR_API_KEY&from=SARON_3M&to=FED_FUNDS&amount=1
Request Parameters
| Parameter | Required | Description |
|---|---|---|
| api_key | required | Your API key. |
| from | required | Source symbol. E.g. SARON_3M |
| to | required | Target symbol. E.g. FED_FUNDS |
| amount | required | Amount to convert. |
| term_months | optional | Term in months for interest calculation (default 12). |
Sample Response
{
"success": true,
"from": "SARON_3M",
"to": "FED_FUNDS",
"amount": 1,
"result": 0.981524
}
YOUR_API_KEY with your key
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Get live and historical Swiss 3-Month Interbank Rate data in JSON format. One API, 50+ countries, normalized.