PayDragon
DefunctYC S11Los Angeles, US · 11 employees · 4 known investors
PayDragon provides QR code infrastructure and services for businesses, including a reader app, code generation, content management, and design and printing capabilities.
Also known as Paperlinks · PayDragon FKA Paperlinks
Founders & leadership· Y Combinator alumni (S11)
Investors · 4
Also in the syndicate · 2
Company profile
researched Aug 2026PayDragon, formerly Paperlinks, was a Los Angeles-based mobile commerce company founded by Hamilton Chan and backed by Y Combinator's Summer 2011 batch. As Paperlinks, the company described its mission as "hyperlinking the real world" and provided an end-to-end QR code offering for businesses: a free QR reading app, QR code generation, a content management system for managing code content, and in-house design and print services.
In 2012 the team applied that QR and m-commerce experience to a consumer purchasing app, PayDragon, which let smartphone users order and pay for items in advance and skip the line at the register. Each participating restaurant offered a short menu of roughly four to six popular items, typically in combo form, with minimal customization so orders could be placed in a single tap. Users could reach merchants either by scanning a QR code or through in-app discovery; after ordering they received a push notification when the item was ready for pickup. Additional features included a Discover tab for nearby merchants, a points-based game layer, exclusive merchant deals, digital receipts, and Facebook sharing.
In September 2012 PayDragon launched a Checkout feature that broadened the app beyond food: users could scan the barcode of most commodity or non-perishable grocery items, buy with one click, and receive the item via two-day shipping, with the PayDragon team handling purchasing, packaging and shipping. The earlier "Takeout" restaurant ordering feature was retained but was no longer the app's focus.
Business model
PayDragon operated a two-sided mobile commerce model: a free consumer app for iPhone and Android through which users stored billing details and placed one-tap orders, and a merchant-facing service that provided order fulfillment and payment management with minimal setup and investment plus an internal dashboard for staff to monitor orders. In the predecessor Paperlinks business, the company sold an end-to-end QR offering to businesses spanning a free QR reader app, code generation, a content management system for code content, and in-house design and print services. With the September 2012 Checkout feature, the company itself purchased items from local vendors and packaged and shipped them to buyers, taking on fulfillment directly.
Traction
Following a trial at SXSW 2012, PayDragon launched in Los Angeles in April 2012 with merchants including Beard Papa and food trucks The Bun Truck, CambalaCHE's, Auntie's Fry Bread, Chunk n Chip, The Grill Sergeant, The Wien and Rounds Premium Burger. Mashable reported roughly 20 participating merchants across Los Angeles and Austin with New York City planned, and a team of five in Los Angeles; Y Combinator's directory lists a team size of 11. SXSW test merchant Eric Silverstein, owner of The Peached Tortilla and Yume Burger, said the dashboard helped his trucks serve more orders in less time.
Latest developments
The most recent development in the sources is the September 2012 launch of the Checkout feature, which extended PayDragon from restaurant pickup orders to barcode-scanned commodity and non-perishable grocery items shipped within two days, with fulfillment handled in-house by the team. Y Combinator's company page lists the company's status as Inactive and Hamilton Chan as a former founder.
▸Full profile — market position, technology, go-to-market, geography, history, risks & controversies
Market position
The company was described by trade press as a QR marketing and mobile commerce provider and by Mashable as "the main platform for creating QR codes" in its Paperlinks incarnation. In mobile ordering it was positioned as an early entrant in one-tap pre-ordering for food trucks and high-volume food vendors, and press framed it against web-first ordering services such as GrubHub and, for the Checkout product, against Amazon's combination of mobile commerce and two-day shipping.
Coverage emphasized deliberate simplicity: rather than porting a web ordering experience to mobile as GrubHub had done, PayDragon stripped menus down to four to six items and removed customization to minimize barriers to order submission. Chan contrasted PayDragon with other mobile payment solutions that only allow payment once the customer reaches the front of the line, arguing PayDragon let users order and pay without queuing at all. For the Checkout feature, TechCrunch noted that mobile commerce and two-day shipping were not new (Amazon offered both) and that PayDragon's intended differentiator was the simplicity of one-click purchase with no shopping cart or order review step.
Technology
The product combined an iPhone and Android consumer app with QR code scanning and, later, product barcode scanning, stored payment credentials for one-tap checkout, geolocation-based merchant discovery, push notifications for order-ready alerts, gamification points and rewards, digital receipts and Facebook integration. Merchants received QR-enabled menus and an internal web dashboard for monitoring order activity. The predecessor Paperlinks stack covered QR code generation and a content management system for the content behind codes.
Go-to-market
The company went to market through merchant-by-merchant sign-ups, beginning with a trial at SXSW 2012 in Austin and then recruiting Los Angeles food trucks and high-volume food vendors, along with the sweets chain Beard Papa. The consumer app was distributed free through the App Store and Android Market, and the company positioned itself to merchants on the benefits of minimal setup and investment, hands-off order fulfillment and payment management, and higher throughput during peak periods. Launch was supported by press outreach that generated coverage in TechCrunch, Mashable and trade outlets.
Merchants were restaurants, food trucks and other high-volume food vendors seeking to reduce lines and wait times, plus chains such as Beard Papa; the earlier Paperlinks product targeted businesses wanting QR code marketing materials. Consumers were smartphone users looking to order and pay for food ahead of pickup, and later shoppers buying commodity and non-perishable grocery items.
Geography
Headquartered in Los Angeles, California. PayDragon was trialed at SXSW in Austin, Texas, then launched with Los Angeles-area restaurants and food trucks in April 2012. Mashable reported the app operated in Los Angeles and Austin with New York City slated to be added.
History
The company began as Paperlinks, a QR code marketing and mobile commerce provider that went through Y Combinator's Summer 2011 batch and was based in Los Angeles. Paperlinks had experimented with QR-enabled purchasing before pivoting; SocalTech described PayDragon as a refinement of Paperlinks. PayDragon was trialed at SXSW 2012 in Austin and launched publicly in Los Angeles in April 2012 with food trucks and the chain Beard Papa. A $1.35 million seed round was announced in July 2012, and in September 2012 the company extended the app beyond food with a Checkout feature for barcode-scanned goods shipped in two days. Y Combinator's company directory lists PayDragon as Inactive, with Hamilton Chan noted as a former founder.
Risks & controversies
Sources note limited coverage: as of 2012 the app worked only with participating merchants, about 20 at the time, in a small number of cities. Reviews were uneven, with a 4+ rating in the App Store and a 2.1 rating in the Android store. The Checkout feature relied on manual fulfillment, with the team buying items at local vendors and packaging and shipping them itself. Y Combinator lists the company as Inactive.
Compiled by commissioned research from 8 cited public sources — announcements, filings, and press listed under research sources below.
Key figures
latest reportedCompany-reported or press-reported figures, each dated to when it was claimed — not independently audited.
Timeline · 4
launches, deals, and filingsPayDragon added a Checkout feature letting users scan the barcode of most commodity or non-perishable grocery items, buy with one click, and receive the item via two-day shipping. Fulfillment was handled by the PayDragon team, which purchased, packaged and shipped items itself. The existing 'Takeout' food ordering feature was retained.
Paperlinks launched PayDragon, a free iPhone and Android app offering one-tap ordering and payment with short four-to-six-item menus, a Discover tab for nearby merchants, a QR reader, a points-based game layer, deals, receipts, Facebook integration, and pickup notifications. Initial merchants included the sweets chain Beard Papa and Los Angeles food trucks The Bun Truck, CambalaCHE's, Auntie's Fry Bread, Chunk n Chip, The Grill Sergeant, The Wien, and Rounds Premium Burger.
The PayDragon mobile ordering app was tested at the 2012 South by Southwest Interactive and Music Festival in Austin, Texas, with merchants including the food trucks The Peached Tortilla and Yume Burger.
Mashable reported PayDragon worked with about 20 participating merchants in Los Angeles and Austin, Texas, with New York City set to be added.
Dated company events from announcements, filings, and press; legal rows summarize public dockets and regulator releases.
In the news
▸Research sources · 8
primary sources listed
- PayDragon: Hyperlinking the real world. | Y Combinatorycombinator.com · web
8 public sources were cited for this profile; the first-party ones are listed here.
Frequently asked questions
- What does PayDragon do?
- Y Combinator-backed Los Angeles startup, formerly QR code provider Paperlinks, that built the PayDragon one-tap mobile ordering app.
- Who founded PayDragon?
- PayDragon was founded by Hamilton Chan.
- Who are PayDragon's investors?
- PayDragon's investors include Y Combinator, SV Angel.
- Where is PayDragon headquartered?
- PayDragon is headquartered in Los Angeles, US.