Build P2P video and audio streaming with on-chain payment rails.
@GoPlausible just shipped webrtc-payments-sdk: P2P streaming with x402 and MPP micropayments, in TypeScript (Node, JS, Web) and Kotlin (Android).
Gated access, gated usage, pay as you go.
Try the demo belowπ
x402 Build Sprint has officially started at the @Algo_Bharat Dev Retreat.
Some interesting ideas are cooking.
@marcvl is in the house. π
Stay tuned. #x402
@FolksFinance, best project built on Folks.
Erster / $500 (also the winner in the Existing Projects category of the Agentic Commerce track)
@BasmaAgentID / $500
AgentID uses x402 payments and Algorand to create verifiable on-chain reputation scores for AI agents, enabling marketplaces and service providers to identify trustworthy agents based on proven behavior.
Special awards:
Secret Prize from @FeatherlessAI: Airlock, $300 in AI credits
Extra Prize via Runlocal.tools: a Ledger wallet
Special mentions: @asktENet, Microcover
41 teams built pieces of the agents-paying-agents economy in 36 hours.
If you're building on x402, this is your signal.
Berlin was the start. More soon.
Last weekend, we hosted the @Algorand x402 Agentic Commerce hackathon at @42_berlin, the first event of @BerBlockWeek.
370 registrants
110 hackers checked in
41 teams pitched
$21,200 in prizes
36 hours
2 WiFi networks taken down by builders
Here's what went down π§΅
@alphaarcade, monetising data via prediction markets and x402.
@alpha0racle / $500
AlphaOracle uses a swarm of AI models to forecast prediction markets and sell those insights on demand via x402, enabling AI agents to access and pay for market intelligence with USDC on Algorand.
VibeQuant / $500
VibeQuant transforms plain-English market predictions into actionable trading strategies, using AI, x402, and Algorand to help users discover, evaluate, and execute trades on Alpha Arcade!
Bonus tracks. First, @Quantoz best EURQ implementation.
Panelet / 450 EURQ
Panelet turns vehicles into self-paying agents by enabling them to discover services, negotiate prices, and automatically pay for parking, charging, and tolls using x402 and Algorand!
@SingIt0qk / 450 EURQ
Singlt brings insurance to agentic commerce by assessing the risk of every AI agent action and providing on-demand coverage, helping users safely deploy autonomous agents at scale.
π₯ Print402 / $1,000
New build, Infrastructure
Print402 enables AI agents to discover 3D printing providers, compare offers, and automatically settle payments via x402 and Algorand, making custom manufacturing as simple as uploading a file!
π₯ AgentTab / $2,000
New build, Infrastructure
AgentTab brings the concept of a prepaid tab to agentic commerce, allowing AI agents to transact throughout the day via x402 and settle the final balance on Algorand in a single transaction!
π₯ AlgoEuPay / $2,500
New build, Infrastructure
AlgoEuPay enables consumers, merchants, and AI agents to make and receive euro payments through x402 and Algorand, with EURD settlement and instant offramping to bank accounts via SEPA!
Main Track: Infrastructure.
π₯ Liminal / $1,500
Existing project, Infrastructure
Liminal is a trust layer for agentic commerce that uses x402 and Algorand to help AI agents verify the reputation of other agents before paying for services, making agent-to-agent transactions safer and more reliable.
π₯ SPM / $1,500
New build, Agentic Commerce
SPM introduces a new model where every audited software download triggers automatic micropayments through x402 and Algorand, helping make open-source software safer while rewarding the people who help secure it! π
π₯ Volt402 / $2,000
New build, Agentic Commerce
Volt402 enables autonomous vehicles to automatically purchase surplus solar energy from nearby homes and settle payments in real time using x402 and Algorand, creating a P2P energy marketplace where every charging session is paid for on-chain without human intervention! β‘πβοΈ
π₯ JuiceBag Mail / $2,500
New build, Agentic Commerce
JuiceBag Mail brings agentic commerce to the postal layer by enabling AI agents to send, receive, scan and process physical mail while paying per action in USDC or EURD via x402 on Algorand.
π₯ @LockPayy / $2,000
Existing project, Agentic Commerce
LockPay brings agentic commerce to creator payments, allowing brands to lock funds on Algorand while AI agents verify performance and smart contracts automatically release payments once results are delivered.
Now the teams.
Let's start with the Main Track: Agentic Commerce.
π₯ @_Erster_ / $3,000
Existing project, Agentic Commerce
Erster enables AI agents to obtain validator-backed trust scores via x402 on Algorand, helping regulated financial platforms safely onboard autonomous agents into tokenized financial workflows.
How we structured it:
Separate tracks for existing projects and new builds.
50% of the prize pool reserved for teams that keep building after the event.
Show up, ship, keep going. That's what got rewarded.
This time the goal wasn't just to run a hackathon.
We wanted to find the builders who keep showing up, the ones turning weekend projects into something real.
So we built the whole event around what happens after Sunday, not just the demo.
Builders flew in from San Francisco, Amsterdam, Barcelona, Warsaw, Munich, and across the Czech Republic, on top of a strong local Berlin crowd.
x402 and agentic commerce pulled people across a continent for one weekend.