The Rate Pulse API

The Rate Pulse API gives your own tools the same numbers as the airport pages: what the car hire market is charging at 38 airports, by car type and pick-up day, with every brand's rating and the events that move demand. It's read-only, it returns JSON, and the free plan needs no key.

Start here

https://api.dayrunner.co.nz/v1/airports/AKL/snapshot

Open that address in a browser. You get Auckland Airport this morning: the typical daily rate for each car type, the cheapest and dearest pick-up days in the next 14, the best-rated and lowest-priced brands, and what's on in town. Swap AKL for any of the 38 airport codes.

The full list of endpoints is at https://api.dayrunner.co.nz/v1 and the OpenAPI file is at https://api.dayrunner.co.nz/v1/openapi.json.

Free endpoints

All of these read this morning's sweep.

• /v1/airports lists the 38 airports and the latest sweep date.
• /v1/airports/{code}/snapshot is the one-call market brief.
• /v1/airports/{code}/rates gives the cheapest, lower-quartile and median daily rate for each car type and pick-up day. Add category=compact to narrow it.
• /v1/airports/{code}/promotion-days ranks the next 14 pick-up days against the window, with events, for campaign planning.
• /v1/airports/{code}/ratings gives every brand's customer rating and sub-scores next to its price index.
• /v1/airports/{code}/brand-position takes brand= and returns that brand's rank on price and rating, and its nearest rivals.
• /v1/airports/{code}/events lists events and public and school holidays.
• /v1/compare takes category= and compares one car type across airports.

What people build with it

• Marketing teams feed the promotion days into a weekly campaign plan, so price-led ads run on the soft days and stop on the dear ones.
• Operations teams put the morning snapshot on a branch screen or in a Slack message.
• Revenue managers pull the market median into their own rate sheet next to their own prices.
• Developers add market context to travel tools, pricing dashboards and AI agents.

With a Rate Pulse Pro key

Send your key in the x-api-key header and these open up:

• /brand-rates: each brand's rates by car type and pick-up day.
• /moving-average: the forward market level and its moving average.
• /rate-history: how rates moved into a pick-up date.
• /price-changes: brand price moves between sweeps, like for like.
• /followers: which brands follow which.
• /event-impact: the uplift on an event or holiday.
• /forward-curve: rates up to a year ahead.

Pro also lets you read any earlier sweep with sweep_date=. Every sweep has been kept since 7 Nov 2026.

Prefer to ask in plain English?

The same data plugs into Claude and ChatGPT. See Rate Pulse in your own AI.

The free plan stays free. Pro is from US$29 a month per airport. Compare plans.

Questions