Daxos Capital · NYC hackathon calendar · 09/16/26 · internal

NYC Hackathons: mid-Sep 2026 to Mar 2027

Every hackathon, buildathon and builder demo day we could verify inside New York City for the next six months, scored 1-10 for Daxos sourcing value. Crypto first, then AI and agents, robotics, university events. NYC's crypto build season runs in June (Blockchain Week, ETHGlobal, Consensus); across this window only four in-person crypto events exist, clustered now and around Ripple Swell in late October, and the December to March calendar stays near-empty until spring dates post. Use the tabs to filter; amber notes mean a fact is not yet confirmed on an organizer page. 26 dated events, 15 TBA, ~40 checked and excluded.

Next 30 days (19)

Sep 18-19 Viam Robot Hackathon: Fine Motor Skills Robotics & hardware · score 6

Sep 18 Metropolis Builder Day: NYC Crypto · score 6

Sep 18-19 (demo night Sep 19) RUNTIME: Build + Demo Day (Runtime Agent Week) Crypto · score 6

Sep 19 Trust in the Hiring Funnel Hackathon University & pre-seed · score 4

Sep 23 (5-10pm) Everesteer Hedge Fund Hackathon AI & agents · score 5

Sep 23 (6-9pm) AI Tinkerers NYC: September Demo Day AI & agents · score 6

Sep 24 Newlab: New Climate Futures 2026 University & pre-seed · score 5

Sep 26 (9am-10pm) Harness Engineering & Model Wrangling Hackathon AI & agents · score 8

Sep 26-27 DivHacks 2026 University & pre-seed · score 5

Sep 27 cognee Personal Agent Hackathon AI & agents · score 5

Sep 28 The Shortlist: September Founder Showcase University & pre-seed · score 7

Sep 28 Miro x n8n Hackathon AI & agents · score 3

Sep 30 State Capacity AI Hackathon: Public Engagement AI & agents · score 3

Oct 4 Brderless Buildathon: AI Agents AI & agents · score 5

Oct 8 (10am-6pm) Reactor x Google: World Models Hackathon AI & agents · score 7

Oct 9-11 Hack Knight (MLH 2027) University & pre-seed · score 4

Oct 10 (10am-6pm) Forever 22 x Google DeepMind Hackathon AI & agents · score 6

Oct 10 Latinos x AI Hackathon NYC AI & agents · score 4

Oct 16 Bronx Tech Hub AI Build-a-thon AI & agents · score 3

All dated events (26)

AllCryptoAI & agentsRobotics & hardwareUniversity & pre-seedOther

Date	Event	Venue · location	Format · themes	Prizes · cost	Register / source	Score
Sep 18-19listed	Viam Robot Hackathon: Fine Motor SkillsViam	Viam HQ, Chelsea WSQ-close	2-day, in-personRobotics, fine-motor manipulation	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	6Real robotics hardware co hosting at its own HQ; robotics talent in the room
Sep 18apply (host approval)	Metropolis Builder Day: NYCMonad Foundation	Manhattan, venue on approval Midtown	1-day builder activation (co-working + VC panel)Monad L1 ecosystem; NYC stop of the 6-week global Metropolis hackathon	$250K global pool ($30K/track)free, host approval	luma.com PARTLY UNVERIFIED	6Monad-ecosystem builders plus a VC panel (Galaxy, Agora) in Manhattan; a sourcing room, not a full hackathon
Sep 18-19 (demo night Sep 19)Event Full; waitlist / demo-night ticket	RUNTIME: Build + Demo Day (Runtime Agent Week)Bankr + Propaganda	Brooklyn, venue on approval Brooklyn	build + demo day (hybrid); demo night Sep 19AI agents x crypto; onchain agents and payments	not statedfree/approval; demo-night ticket	luma.com	6Agent-and-crypto convergence; sponsors Uniswap, Base, Privy, Turnkey, Anchorage, Filecoin, Dynamic; demo night is the sourcing surface
Sep 19upcoming	Trust in the Hiring Funnel Hackathonlocalhost:nyc	NYU (bldg unverified), Greenwich Village WSQ-close	1-day, in-personHiring, trust, verification	nonefree	trust-in-the-hiring-funnel.devpost.com	4Hacker-house crowd; light theme, low sourcing density
Sep 23 (5-10pm)confirmed	Everesteer Hedge Fund HackathonEveresteer	Monk HQ, 19 W 24th St, Flatiron WSQ-close	evening sprintQuant models with AI, live leaderboard	$1,000free	ushackathons.com	5Quant-AI builders; small but targeted
Sep 23 (6-9pm)confirmed, apply	AI Tinkerers NYC: September Demo DayAI Tinkerers (w/ PostHog, Veris, CopilotKit, Tavily)	Venue on acceptance, Manhattan Midtown	demo nightAI agents demos	n/afree, application	nyc.aitinkerers.org	6110+ builders demoing; the recurring NYC agent-scene room
Sep 24confirmed	Newlab: New Climate Futures 2026Newlab	19 Morris Ave, Brooklyn Navy Yard Brooklyn	showcase day70+ critical-tech startups demo	n/afree/RSVP	newlab.com	5Deep-tech demo day, not a hackathon; frontier sourcing
Sep 26 (9am-10pm)confirmed, apps open	Harness Engineering & Model Wrangling HackathonCerebral Valley x MongoDB	NYC; venue disclosed on acceptance Midtown	1-day, teams of 4, finals at MongoDB.local Sep 30Agentic AI infra: memory, persistence, self-evolving systems	$15,000 across 3 teamsfree, application	cerebralvalley.ai	8Highest-quality agent-infra field in the window; Cerebral Valley filters hard
Sep 26-27confirmed, reg open	DivHacks 2026Women in CS at Columbia	Columbia campus, Morningside Heights Elsewhere NYC	32h overnightUrban life tracks; any college student 18+	podium + track + sponsor prizesfree	columbiadivhacks.org	5Open student field; early talent, low venture density
Sep 27listed	cognee Personal Agent Hackathoncognee	NYC Midtown	1-dayPersonal AI agents, memory	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	5Agent-memory niche; matches agent thesis
Sep 28confirmed	The Shortlist: September Founder ShowcaseBetaworks	29 Little W 12th St, Meatpacking WSQ-close	founder showcaseEarly AI founders pitch	n/aRSVP	betaworks.com	7Betaworks-filtered pre-seed founders; direct sourcing room
Sep 28listed	Miro x n8n HackathonMiro + n8n	NYC Midtown	1-dayWorkflow automation	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	3Corporate tooling crowd
Sep 30listed	State Capacity AI Hackathon: Public Engagement(org per listing)	NYC Midtown	1-dayCivic AI	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	3Civic niche
Oct 4listed	Brderless Buildathon: AI AgentsBrderless	NYC Midtown	1-dayAI agents	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	5Agents buildathon; verify organizer
Oct 8 (10am-6pm)confirmed	Reactor x Google: World Models HackathonReactor + Google	Google NYC, 315 Hudson St, Hudson Square WSQ-close	1-dayWorld models, frontier AI	unlistedfree	ushackathons.com	7World-models frontier crowd at Google NYC; strong technical filter
Oct 9-11confirmed (MLH)	Hack Knight (MLH 2027)Queens College CUNY	Queens College, Flushing Elsewhere NYC	48h student hackathonGeneral; 500+ CUNY students last edition	~$1.6K prior (2026 unverified)free, students	hackknight.org	4Big student field, low venture fit
Oct 10 (10am-6pm)confirmed-ish	Forever 22 x Google DeepMind HackathonForever 22	Manhattan, venue on registration Midtown	1-dayAI agents; 'Agents on Wall Street' likely same event	unlistedfree	ushackathons.com PARTLY UNVERIFIED	6DeepMind pull + finance-agents angle
Oct 10listed	Latinos x AI Hackathon NYCLatinos x AI	NYC Midtown	1-dayAI	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	4Community field
Oct 16listed	Bronx Tech Hub AI Build-a-thonBronx Tech Hub	The Bronx Elsewhere NYC	1-dayAI	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	3Outer-borough community event
Oct 21listed	Make-With-Data: Mapping Mental Health(org per listing)	NYC Midtown	1-dayData/health	unlistedfree	ushackathons.com UNVERIFIED (aggregator only)	3Off-thesis
Oct 24 (8:30am-8:30pm)confirmed	Zero-Human Company HackathonTerac	Manhattan, venue on registration Midtown	12hBuild an agent that runs a business autonomously	SF edition paid $12K; NYC pool unverifiedfree	ushackathons.com	7Pure autonomous-agents field
Nov 7-8confirmed	MakeCU 2026 (MLH 2027)Columbia Robotics Club	Carleton Commons, Columbia, Morningside Heights Elsewhere NYC	24h HARDWARE hackathonRobotics: creativity, healthcare, environment	promised, unlistedfree, college students	v0-curc-makecu.vercel.app	6Only student hardware hackathon in NYC this window; robotics talent
Nov 14-15 (conf Nov 9-15)confirmed	AECtech 2026 HackathonCORE studio / Thornton Tomasetti	120 Broadway, FiDi (+ Cornell Tech workshops) WSQ-close	27hArchitecture/engineering/construction tech	unlistedpaid ticket (Eventbrite)	aectech.us	4Niche vertical; industrial-tech angle only
Nov 17confirmed; cohort-only	Base Batches 004 Demo DayBase Ecosystem Fund (Coinbase)	NYC, venue TBA Midtown	demo day (8-wk buildathon ends)Base ecosystem; $100K investment per selected team	$100K investmentsclosed cohort (apps closed Sep 10); attend as investor	base.org	8Curated VC room for the Base cohort; attend to source, not compete
Dec 9-10confirmed	AI Summit New York HackathonAI Summit NY (Informa) w/ Dell + NVIDIA	Javits Center, Hudson Yards Midtown	8h challenge inside 5,000-person summitAgentic AI, computer vision	unverifiedsummit reg	newyork.theaisummit.com	6Corporate-scale agentic field; enterprise-heavy
recurring (e.g. Dec 12)recurring	Flushing Tech bi-weekly mini-hackathonFlushing Tech Meetup / TIQC	Tech Incubator at Queens College, Flushing Elsewhere NYC	2h free-form buildOpen	nonefree	meetup.com (Flushing Tech)	3Community rhythm event; low stakes

TBA / expected (15)

ClawHack NY (Betaworks + AI Tinkerers) — autonomous-agents hackathon + unconference, postponed, new date TBA. Builders only. betaworks.com/event/clawhack-ny
Betaworks Fall Camp "New Agent Economy" Demo Day — residency runs Aug-Nov 2026, investor demo day expected ~Nov, date TBA. betaworks.com/camp
Multimodal Hacks: the interface for agents (Betaworks; Google DeepMind, Pinecone, LangChain sponsors) — postponed, TBA. betaworks.com/event/cli-hacks-build-the-interface-for-agents
NYC LeRobot Hackathon (Betaworks + Hugging Face community) — 2-day robot-arm hackathon, postponed, TBA. betaworks.com/event/nyc-lerobot-hackathon
Alliance MVP Hackathon — Alliance says a hackathon is coming; no date or page. Watch alliance.xyz. Daxos knows Alliance from portfolio overlap.
HackNYU 2027 — spring collegiate hackathon (500+ students; 2025 fall edition was 6 MetroTech, Downtown Brooklyn); 2027 date unposted. hacknyu.org
CSAW 2026 Finals (NYU Tandon cybersecurity games) — early Nov annually, 370 Jay St, Brooklyn; 2026 dates unposted. csaw.io
GDG NYC DevFest 2026 — global window Oct-Dec; NYC date TBA. gdg.community.dev
Chainlink SmartCon 2026 — 2025 was NYC with hackathon finalists; 2026 city unconfirmed on smartcon.chain.link. Watch.
Solana / Superteam NYC — recurring NYC meetups; Colosseum/Superteam hackathons (Frontier, Breakout) run online, no in-person NYC edition in window. earn.superteam.fun
Columbia DevFest 2027 (ADI) — historically late Jan to early Feb; 2027 unannounced. adicu.com
NYU J-Term Startup Sprint 2027 — 2-week January venture sprint, Leslie eLab, 16 Washington Pl (WSQ-close); NYU ventures only; dates unposted. entrepreneur.nyu.edu
Cornell Tech / Cornell x Columbia AI hackathon — 2026 edition ran Mar 20-22 at Cornell Tech, Roosevelt Island; Mar 2027 repeat plausible, unannounced. hackathon.cornell.edu
AMNH Urban Futures Climate Hackathon 2027 — January editions annually, Upper West Side; 2027 TBA. amnh.org
Base Batch Workshop NYC series — rolling Luma series, individual dates TBA. luma.com/vnv007mi

Checked and excluded

ETHGlobal New York (Jun 2026, past; next NYC-adjacent is ETHConf Jun 2027, outside window) · ETHGlobal Tokyo (Sep 25-27) + Mumbai (Nov 5-7) (not NYC) · Monad Metropolis Lounge London (Oct 2026, not NYC) · Fork That NYC NEAR Hackathon (Aug 9-10 2026, past) · Builders Cup 2026 (Ramp; Flatiron, past; student AI, not crypto) · H-W3B New York (Sia Partners; 2024 only, no 2027 edition announced) · Storage is a Skill Salon (Filecoin Foundation; South Williamsburg salon, not a hackathon, no date) · Superteam/Colosseum Solana hackathons (Frontier, Breakout: online only) · Alliance DAO + a16z CSX demo days (accelerator, not NYC in-person) · dev.events confirms 0 in-person NYC crypto hackathons Oct 2026 to Mar 2027 · Devcon 8 (Mumbai) · Solana Breakpoint (London) · Permissionless (no 2026-27 edition on blockworks.com/events) · Consensus 2026 (Miami, past) · Stellar Meridian (Lisbon) · Encode Raingentic NYC (Aug 2026, past; next Encode hack is London) · Polygon BUIDL IT (online) · Coinbase Code NYC (past) · Circle/Stripe x402 NYC (nothing announced) · Bitcoin/Ordinals NYC (nothing found) · AI Tinkerers OpenAI global hackathon NYC (Sep 12, past) · ElevenLabs NYC (Dec 2025, past) · Cerebral Valley GPT-6 Astra (Sep 10, past) · Anthropic/Perplexity Agents Hackathon (past) · Vercel x DeepMind NYC (Mar 2026, past) · TechCrunch Disrupt (SF) · NYC Resistor (workshops only) · hackNY (fellowship only) · BigRed//Hacks (Ithaca) · SBUHacks (Long Island) · hackPHS + HackHERS (NJ) · WiCHacks (Rochester) · NYU PIT-UN (Mar 2026, past) · Columbia x NYU Claude Builder (Apr 2026, past) · Tech@NYU Buildathon (Feb 2026 past, 2027 unannounced) · DeveloperWeek NY (past) · The New York City Hackathon (Aug, past) · Builders Weekend (Tokyo) · dev.events NY listings (virtual-only) · CUNY Hackathon Baruch (no date) · LionHack + Blockchain@NYU (nothing in window) · StuyHacks/NighthawkHacks (HS, past/unannounced)

Built 09/16/26, expanded 09/16/26 with a deeper crypto sweep and a Jan-Mar 2027 pass. Sources: crypto orgs (ETHGlobal, Monad, Base, Solana/Superteam, Blockworks, Encode, DoraHacks), AI orgs (Cerebral Valley, AI Tinkerers, Betaworks, Newlab, corporates), universities + MLH 2027 season, and platform listings (Luma month-by-month, Devpost, dev.events, Eventbrite, Meetup, ushackathons.com). Dates and venues verified on organizer pages where possible; entries marked UNVERIFIED or PARTLY UNVERIFIED rest on aggregator listings or search-derived dates. Transit guide: WSQ-close = walkable or one stop from Washington Square; Midtown = 15-25 min from WSQ by subway; Brooklyn Navy Yard/MetroTech = 20-30 min; Morningside Heights/Flushing = 30-50 min. Location for MongoDB, Metropolis and several one-day events is released on acceptance. Data: events.json alongside this page. Betaworks and Cerebral Valley announce 2-6 weeks out, so Oct-Mar inventory will grow; recheck monthly.