Connect ResDiary to WhatsApp and AI Chat

By Alva Chew 4 min read Updated October 25, 2026

Guests message to book a table, move a booking or tell you they are running late. Your diary, tables and availability are in ResDiary. AeroChat answers those messages and works from ResDiary directly: it checks availability, creates the booking and makes the change, so the chat and your diary always match.

This page covers what you can automate, how the connection works and what stays in ResDiary. Each use case links to a page with a description you can paste into AeroChat.

What you can do with ResDiary and AeroChat

  • Take table bookings on WhatsApp. Check availability for the party size and time, offer the nearest slots and create the booking in ResDiary.
  • Change or cancel a booking in chat. Find the booking, move it or change the covers, or cancel it.
  • Pass large groups and events to your team. Collect the date, size and occasion, and hand over above your limit.
  • Answer menu, dietary and opening hours questions. Reply from your menu and policies in the knowledge base.
  • Take a deposit for busy dates. Send a payment link in the chat before the booking is confirmed.

How the connection works

AeroChat connects through ResDiary’s API (ResDiary API options). Through it, AeroChat reads availability for your venue, and creates, updates and cancels bookings.

ResDiary gives API access on request, and it may be a paid add-on. Request API access for your venue from ResDiary and they send you the credentials. You describe the workflow in plain English, AeroChat builds it and asks for the credentials by name. You enter them in the AeroChat dashboard. They never pass through the conversation.

Workflows to copy

Copy this into AeroChat

When a guest asks for a table, ask for the date, time and number of people. Check availability in ResDiary. If the time is free, offer it. If not, offer the two nearest free times. When they choose, ask for their name and create the booking in ResDiary with their phone number and any notes. Confirm the date, time, covers and our address. For groups of more than 10 (example), do not book. Collect the details and hand the conversation to our team.

Who uses it

Restaurants, pubs and hotel restaurants that run their diary in ResDiary. See the restaurant recipes for table reservations, large group handover, event deposit payment and catering quote requests.

What stays in ResDiary

ResDiary stays your diary: tables, covers, service times, guest profiles and confirmations. You set what is bookable online there. AeroChat handles the conversation and creates or changes the booking, and never books a time ResDiary has not shown as free.

Questions

Does AeroChat work with ResDiary?

Yes. It connects through ResDiary’s API once ResDiary has turned on API access for your venue.

Can guests book a table through WhatsApp?

Yes. AeroChat checks availability in ResDiary and creates the booking in the chat. It also works on Instagram, Messenger and web chat.

Do I need a developer?

No. You describe the workflow in plain English and AeroChat builds it. You request the API credentials from ResDiary and paste them into the dashboard.

Which plan do I need?

Workflows via Skills are on every plan. Choose by message volume. You need Growth or above to send deposit links.

Using a different system? If it has a public API, it connects to AeroChat the same way: describe what you want, paste in its key, and it runs.

Can’t find your tool? Message us in the chat on this page and we’ll tell you how it connects.

Take your first ResDiary booking in chat

Paste the workflow, add your ResDiary credentials and message your own number asking for a table for two tonight.

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On Shopify? Install AeroChat from the Shopify App Store.