CaliDiary is coming soon: a free booking plugin for WordPress, with Solo and Pro plans for payments and teams. See the plans
Start free
Product Your data stays on your websiteOnline payments and depositsInvoices and credit notes, built inWorks with the tools you already useBooking forms that ask the right questionsTeam sign-in, no dashboard accessAccessible to every customerSafe, signed updates All features
Booking kinds AppointmentsGroup bookingsRequests you approveFree bookingsSeveral services in one visitClasses and coursesEvents with ticketsRooms, desks and equipmentWaiting list
Industries Professional servicesClinics and healthSalons and beautyTraining, classes and coursesPet careHome and autoPublic sector and educationCreative and eventsCommunity, charities and volunteering All 51 industries
Compare CaliDiary vs AmeliaCaliDiary vs BooklyCaliDiary vs LatePointCaliDiary vs BookneticCaliDiary vs BookingPressCaliDiary vs Simply Schedule Appointments All comparisons
Pricing
Start free
Developers and apps

API keys and webhooks for your booking data

On Pro, the Connections screen links CaliDiary to your other tools. Webhooks tell them the moment a booking is made, moved, cancelled, completed or missed, or a payment or refund comes in. API keys let your own tools read and change bookings and customers. Everything goes straight from your website to the addresses you choose.

Available Plans: Pro
Start free How it works
Illustration: webhooks and API keys on the Connections screen.
API keys and webhooks

What it does for you

Webhooks

Tell other tools the moment a booking changes.

Choose the events to send to each address. Every message is signed, so the other tool knows it came from you.

  • Tries again for about a day
  • A delivery log you can resend from
API keys

Let your own tools read and change bookings.

Each key can only read, or read and change, and can be revoked at any time.

  • Shown once, stored as a keyed hash
  • Never gives access to settings or WordPress
Today

Data out on every plan: spreadsheets.

Download bookings and customers, or use the Reports screen on Solo and Pro.

  • CSV on every plan
  • Reports on Solo and Pro
How it works

Set up in minutes

  1. Open Connections

    In the CaliDiary admin, on Pro.

  2. Add a webhook or a key

    Choose the events, or read only or read and change.

  3. Send a test event

    Made-up details, to check it arrives.

  4. Connect your tools

    With the webhook address or the key.

Plans

What each plan includes

Feature FreeSoloPro
API keys and webhooks

See prices and every plan

In detail

Everything about aPI keys and webhooks

Webhooks

Add an https address, give it a name and choose the events it should get. When one happens, your website sends a JSON message to that address in the background, a moment later, so customers never wait while they book. Each message carries a CaliDiary-Signature header made with that webhook's own signing secret, which is shown once when you add it, and each event has its own id, so the other system can tell a repeat. Send a test event sends made-up details to check the connection.

Addresses must be public https addresses: CaliDiary refuses ones that point at your own server or a private network.

API keys

Make a key for each tool, named after what it is for, and choose read only or read and change. The key is shown once; only a keyed hash of it is stored. Requests send it as Authorization: Bearer followed by the key. Each key can make up to 120 requests a minute, acts only with CaliDiary's day-to-day permissions of the person who made it, and stops working when it is revoked or that person can no longer manage CaliDiary.

What Read-only keys Read and change keys
Bookings and customers Read Read, add and change
Free times, services, booking set-ups, people and locations Read Read

Zapier, Make and other tools

Any tool that can receive a webhook or send a request with a key can be connected, including Zapier and Make, using webhooks and API keys (for example Zapier's own webhook step). Settings › Integrations shows the steps. A CaliDiary app in Zapier's directory is on the roadmap.

Because everything is sent from your website, connections go straight from your site to your other tools, keeping to the rule that businesses' booking data never reaches our servers.

Who uses it

Teams that connect their tools

Consultants

Discovery calls, paid strategy sessions and client workshops.

Browse all 51 industries

Works well with

AI assistant connector

Ask an AI assistant about your diary, through a connector that runs on your own site.

On the roadmap Plans: Pro

Business app

Your diary and notifications on iPhone and Android, talking only to your website.

On the roadmap Plans: Free, Solo, Pro

Your data stays on your website

Bookings and customer details stay in your own website. We never see them, so never sell them.

Available Plans: Free, Solo, Pro

Safe, signed updates

Signed, staged updates that can be rolled back, and billing never takes bookings down.

Available Plans: Solo, Pro

Connects with: Zapier

See every feature Compare the plans

Questions about aPI keys and webhooks

Which plan includes API keys and webhooks?
Pro. On other plans, keys stop working and nothing is sent, but your keys, webhooks and log are kept, so moving back to Pro picks up where you left off.
Which events can a webhook send?
A booking made, moved, cancelled (including a request declined or one that ran out), completed or marked as missed; a payment received or refunded; and a new customer.
What happens if the other tool is down?
CaliDiary tries again, six times over about 24 hours. If every try fails, that address is paused and you are emailed. The delivery log shows each try, and you can send a delivery again.
What can an API key reach?
Bookings and customers (read, or read and change), and free times, services, booking set-ups, people and locations (read only). A key can never change settings, reach other parts of WordPress, or be used to sign in to the dashboard.
Can I use Zapier or Make?
They can be connected using webhooks and API keys, for example with Zapier's own webhook step. A CaliDiary app in Zapier's directory is on the roadmap.
Does it run on your servers?
No. Webhooks are sent from your own website straight to the addresses you choose, and the API runs on your website, so your booking data still never reaches CaliDiary.

Try CaliDiary on your own website.

Start on the free plan, with no booking limit. Upgrade only when you need to.

Start freeSee pricing and plans