Series A · February – June 2026 · 42 Berlin and online
Algorand Builders Berlin — the x402 programme
Built as a funnel in four steps: learn x402, pitch an idea, prepare, then build it for 36 hours.
Co-organised with
42 Berlin Blockchain
- 18 FEB · ONLINE
Payments as an internet primitive, what x402 means for AI-native products, and the launch of a Berlin builder community with a 2026 roadmap.
- 5 MAR · 42 BERLIN
Team formation, ideation and a pitch competition — no technical background required. $1,000 in USDC plus $250 in GoPlausible credits, and the winners were fast-tracked into the hackathon.
- 3 JUN · ONLINE
Hackathon prep: a client that handles x402 payment flows and a payment-gated API on Algorand, then open office hours on project ideas.
- 6–7 JUN · 42 BERLIN
36 hours, food and overnight included. Agentic Commerce ($11,000) and Infrastructure ($7,000) tracks plus bonus tracks from Quantoz, Alpha Arcade and Folks Finance — $21,000+ in USDC, half paid after the hackathon and half on agreed milestones. Read the hackathon recap →
760+ registrations across the four sessions came from 550+ unique people — and 130+ of them came to more than one.
The hackathon room, from its registrations: 60% builders and engineers, 35% founders and 34% students, 42 Berlin the largest single source of them (roles self-described, more than one allowed). Nearly all gave a GitHub username, 81% confirmed they could attend in person in Berlin, and 43% picked payments as an interest — against 25% for DeFi.
The programme did not start or stop with the season. It began in Season 1 with the Algorand Hackathon: AI Meets Blockchain in September 2025 — there's a one-minute film of it — and carried into Season 3 with Algorand After Hours on 10 July and the Algorand x402 Workshop & Global Challenge on 25 August.
AGENTIC COMMERCE x402 HACKATHON · 42 BERLIN · 6–7 JUNE 2026 · the winners →
// Unique-people and return figures are de-duplicated across the four Luma guest exports (29 July 2026). Composition is from the hackathon registration form, n=368. Aggregate only — AIB does not share individual attendee records with partners.
Series B · April – May 2026 · 42 Berlin
OpenClaw × Money
Three evenings on agents as economic actors, hosted by AI Agents Berlin with Michael Rizhakov. The premise, from the event pages: “a world where software agents act as autonomous economic actors, transforming how we trade, create, and collaborate.”
- 15 APR · PART 1
OpenClaw skills and setup, x402 and agentic payments, memory and self-improving systems, and serverless OpenClaw deployment with a Nebius skill and Claude Code.
- 22 APR · PART 2
In the room and online: agent security, trusted deployment and autonomous payment flows, with sessions from Nebius (Token Factory), Binaryx, Civic, 4ok and Alchemy, then community presentations.
- 18 MAY · PART 3
Agentic commerce, integrating x402: the agent standards stack — ERC-8004, ERC-5564, ERC-8183, ERC-8128 — a workshop on why agents no longer need API keys, and an introduction to IronClaw and NEAR Legion.
850+ registrations across three evenings, from 670+ unique people.
OPENCLAW × MONEY — PART 3 · 42 BERLIN · 18 MAY 2026
The series' capstone was ClawCamp Berlin on 28 July — 320+ registrations, and the first event of Season 3.
// Counts from the Luma guest exports of 29 July 2026, rounded down. Check-in was not run consistently at these evenings, so no attendance figure is published.
