Calenzy API
Calenzy API v1

Your Calenzy data, on your website and in your apps

One HTTPS call with your API key, one JSON answer. 11 APIs today, from exchange rates to bookings, on the same address and the same key.

  1. Copy your API keyIn your dashboard, under Settings, in the API key card.
  2. Send it with every callIn the Authorization header. How
  3. Read the JSONEvery error has the same shape. Errors
Base URLhttps://api.calenzy.app
Your first call
Request
GETapi.calenzy.app/v1/currencies/rate?base=USD&target=JPY
Response · 200 OK
{
  "base": "USD",
  "target": "JPY",
  "rate": 149.2738491625,
  "date_collected": "2026-04-09T12:00:00+00:00"
}

APIs

Grouped by what you build with them.

For your website

Your dashboard on your own pages: files, bookings, clients, SMS, visitor checks and spam protection.

Files

Images and documents from your dashboard's Storage, folder by folder.

GET1 endpoint

Bookings

New

Stays, parking and rentals booked on your own website, and paid on your own Stripe account.

GETPOST5 endpoints

Clients

New

Add the people who order or sign up on your website to your Calenzy Clients.

POST1 endpoint

SMS

New

Send one SMS from your own system, paid from your Calenzy SMS balance.

POSTGET3 endpoints

IP

New

Where a visitor is, and whether your website should let them in.

GETPOST2 endpoints

Captcha

New

An invisible check that a form was sent from a browser, not by a spam script. No cookie, no Google.

GETPOST2 endpoints

Data feeds

Rates, places and weather we collect and keep up to date for you.

Currencies

Currency names in eight languages, the latest rates, and history ready for a chart.

GET4 endpoints

Metals

Hourly gold, silver, platinum and palladium prices in euros, with history since November 2023.

GET2 endpoints

Smoky

Smoking areas in Taipei from the city's open data, refreshed daily, in English or Chinese.

GET1 endpoint

Weather

New

The weather now, the next 24 hours and the next 7 days, anywhere in the world.

GET1 endpoint

For apps

Services that run on our side for a mobile app.

Alerts

Rules on a currency pair that notify a phone when the rate crosses a level.

PUTGETDEL4 endpoints

Good to know

AuthenticationYour key, in one header, from your server.ErrorsOne shape, a stable code, messages in nine languages.QuotasWhat your plan allows each month, and the headers that count it.Requests and answersJSON in, JSON out, over HTTPS.

Recent changes

  • Quotas Your monthly quotas now start again on the day your plan renews each month, not on the 1st.
  • SMS API Send one SMS from your own system, paid from your Calenzy SMS balance.
  • Clients API Add the people who order on your website to your Calenzy Clients.
  • Weather API The weather now, the next 24 hours and the next 7 days, anywhere in the world.
  • Captcha API Invisible spam protection for your forms, now documented.
  • Quotas Each API now allows what your plan includes every month.
  • Bookings API Bookings on your own website, paid on your own Stripe account.
  • IP API Let a visitor through after a CAPTCHA.
  • IP API Visitor location and access checks, from our own data.
  • Alerts API Rate alerts on a currency pair, for our mobile apps.
  • Metals API Hourly precious metal prices, with history since 2023.