6 results
2026-04-27 Troubleshooting 403 401 Permissions Scopes
403/401 is returned (permissions and scopes)

How to isolate the cause when an API call returns 401 or 403. Explains the typical cases: invalid token, insufficient scope, no store access permission, and User-scope review not passed.

2026-10-26 Quickstart API Reservations Calendar iCalendar ics Node.js OAuth
Show a store's reservations in your own calendar

Fetch the next 7 days of a store's reservations with the Reservations API and write them to an iCalendar (.ics) file with Node.js.

2026-10-26 MCP AI agent Claude OAuth PKCE Quickstart
Connect an AI agent to ReceiptRoller over MCP

Connect Claude as an MCP connector, then build your own MCP client with dynamic client registration, PKCE and JSON-RPC calls over HTTP.

2026-04-27 Troubleshooting Token Authentication OAuth
Cannot obtain a token (authentication error)

How to narrow down a 400 or 401 from the token endpoint, with the fix for each error and error_description, including invalid_client and invalid_grant.

2026-04-27 API Error codes Retry HTTP status
Error codes and retry guidance

The status codes and error body shapes the ReceiptRoller API returns, token endpoint errors, and which failures to retry and how.

2026-06-11 API OAuth Reservations Slots Menus Tables Status Android iOS
Using the Reservations API

How to read, create, change, move and update the status of reservations, generate slots, and read menus, settings, tables and monthly counts.