19–20 June 2026 · 42Berlin

AI Agents
Hackathon

Overnight. Form a team. Build a production-grade autonomous agent from scratch. Two tracks, hands-on workshops, and $3,000+ in prizes on the line.

🛠️ Overnight Build Sprint 2 Tracks 📍 42Berlin 19–20 June 2026 Workshops: Circle · Swarm · Ethereum Foundation
The Venue

42Berlin — built for builders.

The AI Agents Hackathon runs 19–20 June at 42Berlin — one of the world's most recognised peer-to-peer coding schools. Open around the clock, equipped for intensive development, and located in central Berlin.

Post-opening-ceremony, registrations and final submissions will move to DoraHacks. Details sent to all registered participants beforehand.

~24h
Continuous build sprint
2
Competition tracks
3
Confirmed workshop partners
$3k+
In prizes
Competition Tracks

Two tracks.
Pick one. Ship something real.

Event page

A $3,000+ prize pool, split across the two tracks below plus bonus awards. Every track is judged on the same principle: does it actually work autonomously? Specific challenges and judging criteria are released to registered participants before the event.

🛒
Track 01
Agentic Commerce
$1,500 in track prizes
$1,000 first place by Circle · $500 best use of Tevly
Build agents that participate in autonomous commercial transactions — procurement, negotiation, fulfilment, or agent-to-agent commerce. This track is built around the core theme of AIS26.
Agent-to-agent payments x402 payments Subscriptions & automation Commerce workflows
⚙️
Track 02
Agent Infrastructure
$1,000 in track prizes
Nebius — $500 × 2 for best use of TokenFactory
Build the tools, protocols, or primitives that other agents depend on. Memory systems, identity layers, inter-agent communication, orchestration frameworks, or evaluation tooling.
APIs & protocols ERC-8004 Verifiable logs Monitoring & reputation
Schedule

Two days at 42Berlin.

Two days, one venue, one mission: ship something autonomous that actually works. Building runs overnight from Friday's opening to Saturday's judging.

19
Friday · June · Opening night
18:00Doors open & opening ceremony — partners & enablers, plus team formation in the Auditorium (Michael).
18:45Workshop by Circle — intro to prizes & workshop (Blessing Adesiji).
20:30Dinner, then the overnight build begins — the venue stays open through the night.
20
Saturday · June · Build & judging
09:00Breakfast served · team & builder check-in.
10:15Swarm Foundation: MCP × x402 workshop (Andrei).
11:00Ethereum Foundation: Agent Wallet (Philip).
12:00Lunch served in the café of the 42Berlin school.
15:30Project submissions.
17:30Pitches start.
EveningWinner announcements, followed by drinks & networking.
Confirmed Workshops

Learn from the infrastructure teams.

Three hands-on workshops from partners who are building the infrastructure agents run on. Access to their teams throughout the weekend.

Workshop Partner
Circle
Payments infrastructure for the agentic economy. Learn how to integrate programmable money movement into your agent — USDC, cross-border settlements, and autonomous payment flows built for machine-to-machine commerce.
Workshop Partner
Swarm Foundation
MCP × x402. Wire programmable HTTP payments (x402) into Model Context Protocol agents — so your agent can pay for and expose tools and resources autonomously. Led by Andrei from the Swarm Foundation.
Workshop Partner
Ethereum Foundation
Agent Wallet. Give your agent its own wallet on Ethereum — to hold assets, sign transactions, and pay autonomously on-chain. Led by Philip from the Ethereum Foundation.
Who Should Participate

You don't need a team
to show up.

Solo participants welcome — we run team formation on Day 1. The only requirement is that you're serious about building something that works.

💻
Developers
Backend, frontend, ML engineers. If you can ship code, you belong here. Agent experience helpful but not required.
🎨
Designers
Product and UX designers who want to work on how humans interact with autonomous systems. Underrepresented and highly valued in hackathon teams.
🧭
Domain Experts
Finance, commerce, legal, healthcare — deep domain knowledge paired with builders is often the difference between a demo and a product.
🚀
Founders
Early-stage founders who want to validate a product idea in a structured environment with feedback from builders and potential investors in the room.
Prizes & Judging

What's at stake.

🏆

Prizes

$3,000+ across track and bonus prizes:

  • Agentic Commerce — $1,000 first place (Circle) · $500 best use of Tevly
  • Agent Infrastructure (Nebius) — $500 × 2 for best use of TokenFactory
  • Best social impact — $500 (Blockchain for Good Alliance)
  • $100 in Nebius TokenFactory model credits per participant · Softstack data platform & consulting for top teams
⚖️

Judging criteria

Every submission is evaluated on the same four dimensions regardless of track:

  • Genuine autonomy — does it act without human prompting?
  • Real-world viability — could this ship as a product?
  • Technical quality — architecture, reliability, efficiency
  • Demo quality — can you explain what it does and why it matters?
Rules & Requirements

Before you build.

👥
Team size
1–5 participants per team. Solo builders welcome — team formation runs on opening night.
📍
On-site presence
Partial remote participation is allowed, but at least one team member must be on-site and present the final pitch.
🤖
AI is encouraged
Full AI usage is allowed and encouraged — Algorand AI tooling and templates are provided to every team.
📦
Clean repo
Every project starts from an empty repository — no pre-built work. Building starts at 6 PM on 19 June and ends at submission.

Submissions are judged on technical sophistication, creativity, usability, value proposition, and potential ecosystem impact. Winners are selected through the judging process, subject to eligibility, compliance, and verification.

That's a wrap on 2026.

Thanks to everyone who built with us over the weekend. The full recap is coming soon — until then, the event page has the tracks, prizes, and details.

Want in on the next one? Join the builders' Telegram →

Event page →