Bank of Canada Overnight Rate API: BOC_OVERNIGHT as JSON

Bank of Canada Overnight Rate API: BOC_OVERNIGHT as JSON

A Bank of Canada overnight rate API returns BOC_OVERNIGHT as JSON. On Interest Rates API that is GET /api/v1/latest with symbols=BOC_OVERNIGHT. US 10Y stays on Bonds-API. Starter is one symbol per request.

Starter is $19/mo with a 7-day trial. MCP: interestratesapi.com/mcp.

Request: latest BOC_OVERNIGHT

curl "https://interestratesapi.com/api/v1/latest?api_key=YOUR_API_KEY&symbols=BOC_OVERNIGHT"

Response: live Interest Rates API latest (dated 2026-08-31)

{
"success": true,
"date": "2026-08-31",
"base": "CAD",
"rates": {"BOC_OVERNIGHT": 2.25},
"dates": {"BOC_OVERNIGHT": "2026-08-31"},
"currencies": {"BOC_OVERNIGHT": "CAD"}
}

The print is dated 2026-08-31, not “today”. Do not pass base=USD if you need this CAD series.

Go live

1. Register — 7-day trial.

2. Copy api_key.

3. GET /api/v1/latest with symbols=BOC_OVERNIGHT.

4. Store rates.BOC_OVERNIGHT and the dated field.

Read BOC_OVERNIGHT as JSON →

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