# MarketBuddy > Rental analytics for Australian commercial property. MarketBuddy tracks 100,000+ commercial and retail listings across Australia, with rental pricing, per square metre rates and suburb-level analytics for instant market reviews. MarketBuddy is an Australian commercial property insights platform. This site is the marketing and information site; it also hosts a suite of free calculators built on official data (ABS CPI), with no signup required. ## Calculators - [Commercial Property Calculators](https://www.marketbuddy.com.au/calculators): Index of all free calculators for Australian commercial property. - [Australian CPI Rent Increase Calculator](https://www.marketbuddy.com.au/calculators/cpi-rent-increase): Calculate commercial rent increases with official ABS CPI figures. Quarterly and monthly data for all 8 capital cities. - [Fixed Rent Increase Calculator](https://www.marketbuddy.com.au/calculators/fixed-rent-increase): Project rent under a fixed percentage escalation clause, with the compounding schedule year by year. - [Commercial Loan Repayment Calculator](https://www.marketbuddy.com.au/calculators/loan-repayment): Estimate repayments on a commercial property loan: monthly, fortnightly or weekly, principal and interest or interest only. - [Commercial Property Value Calculator](https://www.marketbuddy.com.au/calculators/property-value): Estimate a commercial property's value by capitalising its net annual income at a market yield. - [Commercial Property Yield Calculator](https://www.marketbuddy.com.au/calculators/property-yield): Work out the net yield on a commercial property from its net annual income and value or purchase price. - [WALE Calculator](https://www.marketbuddy.com.au/calculators/wale): Calculate a property's weighted average lease expiry by income and by area from its tenancy schedule. ## Calculator API for AI agents Some calculators can be called directly with a GET request, no authentication. Responses are markdown. Calling an endpoint with no parameters returns its full usage instructions. - [CPI Rent Increase API](https://www.marketbuddy.com.au/calculators/cpi-rent-increase/api): CPI-linked rent adjustment from official ABS figures. `rent` is required; `city` (default Australia), `frequency` (`quarterly` | `monthly`), `from` and `to` (`YYYY-MM`, default latest year-on-year) are optional. Example: `https://www.marketbuddy.com.au/calculators/cpi-rent-increase/api?rent=52000&city=Sydney`. Also handles reviews between any two published periods, e.g. a catch-up where no increase has been applied for several years: `https://www.marketbuddy.com.au/calculators/cpi-rent-increase/api?rent=48000&city=Brisbane&from=2022-06` ## Company - [About MarketBuddy](https://www.marketbuddy.com.au/about): MarketBuddy's mission to revolutionise commercial rental data in Australia with real-time market insights and historical trends. - [Pricing](https://www.marketbuddy.com.au/pricing): MarketBuddy pricing plans. - [Contact](https://www.marketbuddy.com.au/contact): Get in touch with the MarketBuddy team. ## Optional - [Privacy Policy](https://www.marketbuddy.com.au/privacy) - [Terms of Service](https://www.marketbuddy.com.au/terms)