Gaplessly

Gaplessly Public booking (appointments) API

No authentication. Find free appointment times at a business and book one, the same calls its booking page at /book/{slug} makes.

GitHub OpenAPI

Operations 5

POST /api/book/{slug}/appointment-waitlist/{token} Take yourself off the waitlist #
GET /api/book/{slug}/availability List bookable appointment slots #
POST /api/book/{slug}/appointment-waitlist Join the waitlist for a full day (public, appointments) #
POST /api/book/{slug}/appointments Book an appointment #
POST /api/book/{slug}/promo-codes/validate Preview a promo code #

Specifications

⚙
OpenAPI
https://artifacts.apis.io/gaplessly-com/openapi/gaplessly-com-public-booking-appointments-api-openapi.yml

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OpenAPI Specification

gaplessly-com-public-booking-appointments-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  title: Gaplessly booking Public booking (appointments) API
  version: 1.0.0
  summary: Two booking engines sharing plumbing, never booking logic.
  description: 'Gaplessly runs **two booking engines**: appointments (a client books one service with one staff member for a set duration) and table reservations (a guest books a table for a party inside a service period). They are two products, not one product with a flag. Each organization runs exactly one, chosen when it signs up, and `businessType` on `GET /api/v1/organization` says which.


    This document covers the surfaces built for other software:


    - **`/api/v1/*`**: an organization''s own data with an API key, sent as `Authorization: Bearer sk_live_…`: read it, find free times, and book, change or cancel on a guest''s behalf. Scoped and rate limited.

    - **`/api/book/{slug}/*`**: the public booking endpoints a business''s booking page calls. No authentication.

    - **`/api/book/{slug}/manage/{token}`**: guest self-service. The token in the guest''s booking link is the whole credential.

    - **`/api/mcp`**: a Model Context Protocol endpoint for AI assistants helping a guest find a time. No authentication.


    Guides, a quickstart and the versioning and deprecation policy: /docs.'
  contact:
    name: Gaplessly
    url: mailto:support@gaplessly.com
servers:
- url: https://gaplessly.com
  description: 'Production. There is deliberately no CORS policy: an API key is a secret, so call `/api/v1` from a server, never from browser JavaScript.'
tags:


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# Full source: https://artifacts.apis.io/gaplessly-com/openapi/gaplessly-com-public-booking-appointments-api-openapi.yml