HTTP API
JSON for your code
Current rates, the change feed and standard series such as the variable rate minus the cash rate. Every value carries the day it was recorded.
Tools · API and MCP
Rate data for your code and your AI tools
Every rate RateSonar records, with the day it was recorded, through an HTTP API and a connection for AI assistants. We are opening access to the waitlist first.
Private beta · Read the docs
MCP server
Rates inside your AI tools
MCP is a connection for AI assistants. Connect Claude, Cursor or another assistant. Ask for a product’s history, compare lenders or read this week’s moves, with dates in every answer.
Bulk data
Files for your team
CSV downloads and scheduled feeds for research and reporting. Part of the Corporate and Enterprise plans in design.
Ask it like this
- What did CBA’s standard variable rate do since July?
- Compare 2-year fixed rates for investors at the big four.
- Which lenders cut term deposit rates this week?
- Show the spread between the average variable rate and the cash rate.
Answers come from recorded rows only. A day with no new record repeats the last rate, and that repeat is labelled. A median is calculated from several records, not one bank’s quote.