The world's no.1 chat API that powers over 100M monthly active chat users. It started as a community app for moms called Smile Mom, but later pivoted to B2B API business in late 2015 and launched to the public in Jan, 2016 during [[Y Combinator]] (W16 batch). The company was co-founded by [[John Valon]], Harry Kim, Brandon Jeon, Forest Lee.
As of 2020, customers include Reddit, Yahoo! Fantasy Sports, Delivery Hero, Paytm, Ola, Careem, Headspace, DHL, ServiceNow, Carousell, Rakuten, iFood, Gojek, Patreon, Hinge, Accolade, Livongo, Rally Health, Schibsted, etc. The company has raised $120m+ and employees 200+ people on the team across 7 offices around the world. The company is backed by ICONIQ Capital, Tiger Global Management, Shasta Ventures, August Capital, FundersClub, and [[Y Combinator]].