Skip to content
AI Hack Club

Hackathon · London

Stripe x Briefcase: AI FinTech London Hackathon

When
Thursday 15 October 202617:15 → 22:00
Where
London
Host
Briefcase
Entry
Free
Going
196 registered

About

AI Agents in Fintech - Evening Hackathon

150 developers. One evening. Central London.

Build autonomous AI agents that handle real financial operations - agents that don't just analyse money, but move it. Ship a working prototype in three hours and demo it live to judges from Stripe, Meta, and the 10 Downing Street AI Team.

📅 Schedule

5:15 PM - Doors open & registration

5:45 PM - Opening: mission briefing, tracks and scoring explained

6:00 PM - Hacking begins. Go solo or team up (max 4 per team)

7:30 PM - 🍕 Pizza - keep building

9:00 PM - Code freeze. Submit via the event page

9:05 PM - Judging & finalist selection

9:30 PM - Finalist demos

9:50 PM - Awards

10:00 PM - Close

🚀 Why Join?

Ship something real - walk out with a working fintech AI agent you built in one evening

Win £2,000 - cash prize for the overall winner

Stripe credits - £5k, £3k, and £1k in credits for track winners

Side quests - bonus prizes for creative builds beyond the main tracks

Meet your next co-founder - 150 of London's sharpest AI and fintech builders in one room

🎯 Tracks

Two tracks, revealed at the opening briefing. One hint: your agent will be handling real money movement - think autonomy, policy, and auditability. Plus bonus side quests for builds that go off-script.

🧑‍💻 Who Should Come?

Developers, ML engineers, and technical founders who want to build with AI agents in fintech. Come with a team of up to 4, or join solo and pair up on the night.

Bring: your laptop, a charger, and an idea (optional - tracks will spark plenty).

⚖️ Judges

Jan Stehlik - Briefcase

Fionn O Colmain - Stripe

David Gelberg - 10 Downing Street AI Team

Dominic Hudson - AI at Meta

Akash Bajwa - Earlybird

🤝 Hosted By

Briefcase × Stripe

Sponsors: Briefcase, Stripe, Cognee

Briefcase: First AI native ledger

Stripe: Payment provider

Cognee: Open Source Memory Platform for Agents

Organisers: Jan Stehlik (Briefcase) & Fionn O Colmain (Stripe)

Official page and registration: lu.ma/3k1pazop

The club Going? Find your teammates before the first day. Meet the club

More hackathons

E3 OctEAT_HACK - the world's first AI & eating hackathonLondon · Really Good Culture50 seats. £1,000+ in prizes. And we're hiring. 30 seats taken from 100+ applicants. 20 seats remaining. Applications reviewed on a rolling basis. The brief: build AI for retail using behavioural data. Alongside you will be The Shelf. 25 of the most innovative and exciting challenger brands which all 50 builders can eat, drink and vote on.Register
L3 Oct → 4 OctLondon AI x Science HackathonLondon · Londres · IterateOctober 3–4, 2026 · LondonOver 48 hours, teams will push frontier AI at the hardest open problems in science: autonomous science, novel materials discovery, decoding complex biological systems and more!You'll building on real tools and real data from the partners of this hackathon, then pitching live in front of judges, VCs, and leading researchers.Timed to open Deep Tech Week London, the event lands you in the room…Register
A10 Oct → 11 Oct · 09:30AI Jam LondonLondon · 106 Bunhill RowJoin AI Jam London for a fun, hands-on two days diving into the coolest design hackathon with AI mixed in!Register
A15 Oct · 18:00App After Dark: Mobile App HackathonLondon · London AI Hub · AI BuildersAI Builders Club, London AI Hub, and Bilt.me are hosting a mobile apps hackathon! Come with an idea, a problem worth solving, or join a team when you arrive. You’ll have one evening to turn it into something real, using AI to build a mobile app from scratch. You do not need to be a developer. You need a laptop, a willingness to try things quickly, and a tolerance for shipping something a little rough.Register