On October 24, the party is at Twilio HQ in San Francisco. We are co-hosting an all-day hackday with a number of other startups, including SimpleGeo, Twilio, Apigee, and Mashery. The event is free, with plenty of beer and food to go with the plethora of APIs … thanks to the support of these super sponsors: Amazon Web Services, Heroku, Media Temple, and Microsoft. Visit APIhackday.com for full details and to register today! API Hackday brings developers together for an all-day coding fest focused on building apps and mashups with APIs. Developers of all experience levels can share ideas, collaborate on existing projects, start new ventures and find out about great tools and new APIs to play with. Hackers will also hear from some of the area’s top API-focused companies on tips, tricks and tools for building the next big app. At the end of the day, teams and/or individuals get a chance to present their work to a panel of judges and win great prizes. Bundles of free or discounted products/services will definitely be involved. FYI: We plan to take APIhackday to other cities around the country, so let us know if you are interested in bringing an event to your hometown by emailing timfalls [at] sendgrid [dot] com.