Y Combinator Winter 2027 (W27)
Accelerator by Y Combinator on Any chain. 6 apps can enter, 2 ready today.
Enter with one of these apps
6 apps can enter, 2 ready today. Grants and accelerators fund shipped work. Pitch it with real users. 5 of them would land after the deadline if ordered today, and each card says so.
Swipe to see all 6
USDC SubscriptionRecurring USDC on Base. Members approve once, it renews itself. No card processor, no contract.$100Ready nowReady now. Yours within 48 hours.Could land a few hours after the Nov 3 deadline.Stablecoin billing for businesses. Pitch it with real paying users, YC funds companies, not code.See USDC Subscription
USDC Tip JarTake pay-what-you-want USDC tips on Base, with a live supporters feed read straight from chain. No Circle account, no backend.$100Ready nowReady now. Yours within 48 hours.Could land a few hours after the Nov 3 deadline.A live USDC checkout is a start; YC wants a company with traction behind it.See USDC Tip Jar
AllowanceGive your AI agent a wallet with house rules it literally cannot break.$100Yours in 2 to 3 daysYours in about 72 hours.Lands about Nov 4, after the Nov 3 deadline.Spending rules for AI agents. Pitch the safety wedge with real users.See Allowance
Night ShiftHire a small team of agents, give each a budget and a job, and see who actually earned their keep.$100Yours in 4 to 5 daysYours in about 5 days.Lands about Nov 6, after the Nov 3 deadline.Agent teams with budgets and payouts. Show who uses it and why.See Night Shift
Toll BoothTurn any API or prompt you own into a pay-per-call endpoint agents can buy from in a minute.$100Yours in a dayYours in about 24 hours.Lands about Nov 2, tight for the Nov 3 deadline.Agent commerce: APIs agents pay for per call. Bring usage numbers.See Toll Booth
Vouch DeskRecruiters pay a small USDC fee to request verified proofs from candidates, who get paid.$100Yours in 1 to 2 daysYours in about 48 hours.Could land a few hours after the Nov 3 deadline.Paid verified proofs for recruiting. A marketplace story with a clear revenue line.See Vouch DeskHow to enter in 3 steps
Prizes and funding are never guaranteed. You are entering as a builder with a working app.
- 1Own the app
Pick one of the apps above. Ready apps are yours within 48 hours; the others show when they are yours against the deadline.
- 2Make it yours
Put your name, wallet and story on it. Your owner kit walks you through the pitch.
- 3Submit before Nov 3, 2026
Enter on the official page and disclose that the app started from a DEPLOYR build.
What the program looks for
From the organizer's published terms, as we read them. Confirm on the official page.
The rule on existing code
Any startup can apply, existing projects OK. Decisions by Dec 11 for on-time applications. Late applications are reviewed with no guaranteed timeline.
Grants and accelerators fund shipped work. Pitch it with real users.
Themes
The dates
- Entries openOct 16, 2026
- TodayNov 1, 2026
- Applications closeNov 3, 2026
As published: Apply by Nov 2, 2026, 8pm PT. Batch runs Jan to Mar 2027 in San Francisco.
No vessel for your idea? Commission one.
Send a short brief: the idea, the chain, your budget and deadline. A real person replies usually within a day with questions or a fixed quote. Custom builds typically start at $1,200, and you pay nothing until you approve the quote.
Racing? Say it
I'm entering Y Combinator Winter 2027 (W27) with USDC Subscription. Built on DEPLOYR. https://deployr.airdropsea.com/races/yc-w27
2 days until Y Combinator Winter 2027 (W27) closes. Who is racing? https://deployr.airdropsea.com/races/yc-w27
Frequently asked questions
Can I enter Y Combinator Winter 2027 (W27) with an existing project?
The rule on existing code, as we read it: Any startup can apply, existing projects OK. Decisions by Dec 11 for on-time applications. Late applications are reviewed with no guaranteed timeline. On DEPLOYR this reads "Grant ready". Grants and accelerators fund shipped work. Pitch it with real users.
When does Y Combinator Winter 2027 (W27) close?
The deadline we track is Nov 3, 2026 (UTC). Confirm it on the official page.
Which apps can enter Y Combinator Winter 2027 (W27)?
6 apps on DEPLOYR fit its themes, and 2 of them are ready now: USDC Subscription, USDC Tip Jar, Allowance, Night Shift, Toll Booth, Vouch Desk. Each one shows the rule before you enter.
Prizes, grants and airdrops are never guaranteed. You are positioning as a builder, not buying a payout.