• Grape API Mounted on Rack w/ Static Pages: A sample Grape app mounted on Rack along with a blog post) explaining how to go about mounting a basic API for a Rack app that can also serve static pages.
• Grape API Mounted on Rack w/ Dummy API data: A sample Grape app mounted on Rack using Sqlite3 and a custom ORM.
• Grape API Mounted on Rails: A sample Grape app mounted on Rails.
• Grape API Mounted behind Goliath: A sample Grape app mounted behind the Goliath web server.
• Grape API Mounted on Padrino: A sample Grape app mounted on the Padrino web framework.
• Grape on Goliath on Heroku with Postgres: An example app using Goliath and Grape running on Heroku with Postgres, using a non-blocking flavor of ActiveRecord and the non-blocking Postgres database adapter.
• Goliath + Grape + MongoDB, on Heroku: Experimenting with Goliath asyncronous ruby web server framework, Grape APIs, gitwatcher.com data on MongoLAB/MongoDB and Heroku PAAS.
• ConfAsk Source: Source for the example Grape application demonstrated in the Grapes of Rapid talk at RubyConf 2010.
• A Sample Blogging API: An API for an over-simplified blogging system that directly interacts with the database models.
• A Grape w/ Warden Sample: A Grape API mounted on Rack with very simple authentication using Warden.
• Grape on Rack w/ ActiveRecord: Grape API mounted on Rack, using ActiveRecord, Roar Representers, Swagger and FDoc.
• Grape API v1 inside API v2: Evolve a Grape API v1 into API v2, explain in this blog post.
• Grape with ROAR: A demo of using Grape with Roar and some non-trivial HAL presenters.
• Grape with ROAR: Example of Grape using Roar with header versioning, API inheritance and Swagger.
• Grape with Paperclip: Example of a Grape API mounted on Rails, to upload files with Paperclip & pure AJAX.
• Grape ToDo API: A ToDo application.
• Grape w/ Rack-OAuth2: Rack app running a Grape API and secured via OAuth2 via rack-oauth2.
• Grape Doorkeeper: Rails, Doorkeeper (OAuth2 provider), Grape & Swagger.
• Accept-Version Header example: Grape app mounted on Rails with :accept_version_header versioning strategy.
• Rails-Grape-Entity: a TODO app with grape and grape-entity.
• Grape w/ Rack + MongoDB: a bootstrap app to help you to start a Grape application without Rails
• GitLab: Real world example of working grape API.
• Grape API Bootstrap Application: Basic API application with ActiveRecord, RSpec, Swagger UI and Docker.
• Grape API boilerplate: A full fledged, production ready, and easy to understand API boilerplate.

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Please contribute your sample app to this page.