Kleros Development Update September 2026
📋 September 2026 Summary
- Court V1: case links now open on the right chain.
- Court V2: one-sided appeal withdrawals fixed, a per-court juror gate in development so agent disputes can reach human jurors on appeal, and contract hardening and red-teaming ongoing.
- Atlas: v1.12.0 and v1.13.0, and per-product notification subscriptions merged.
- Dispute Resolver: clearer docs on V1 and V2.
- Vea: VeaShi on Robinhood, Tempo and Arc, and the third validator deployed.
- Foresight: Devcon markets live, and a prediction page and trade wallet in the permissionless app.
- Proof of Humanity V2: the revamped interface is live, with follow-up fixes.
- Scout and Curate: Hyperliquid and Arc support, the full token list restored, Curate V1 deprecation notices, and API3 and WPulse building on Kleros data.
- Reality and Oracles: a Reality arbitrator deployed on Rootstock.
- AI and agents: ClawBank's first disputes through the new dispute service, and an x402 integration kit on testnet.
- Website: SEO improvements for ai.kleros.io.
Now let's go product by product.
Court V1
Case page links now carry the chain, so anyone opening a shared link lands on the right network. Disabled buttons also got clearer styling.
Court V2
Appeal contributions can now be withdrawn when only one side funded an appeal, with fixes in the keeper bot and the interface.
A dispute kit that lets each court set its own juror requirements, such as a token or a Human Passport score, is in development. It is built for the Agentic Commerce court, so a dispute that starts with AI jurors can move to human jurors in the parent Commerce court on appeal.
Contract work for the next version continued: hardening of how delayed stakes are queued, review feedback implemented, and ongoing red-teaming.
The UI components library upgrade is in review, and maintenance on the University court is underway ahead of a pilot with WIPO. MetaMask no longer shows a warning on the Court V2 interface.
Atlas (Backend Services)
Atlas shipped v1.12.0 and v1.13.0. Per-product notification subscriptions were merged, so users will be able to pick which emails they get from each product, and work started on API keys for bots and scripts.
IPFS storage was made more reliable, and a new RPC provider, dRPC, was added as a fallback.
š” Note: Atlas remains an internal backend library for Kleros development teams only and is not intended for community use or integration.
Dispute Resolver
The documentation now separates the V1 Dispute Resolver from V2 dispute creation.
Vea (Cross-Chain Bridge)
New VeaShi routes connect Robinhood and Tempo to Ethereum and Arbitrum, VeaShi is deployed on Arc, and the VeaShi SDK supports all three chains.
The third validator is deployed, and hardening based on a comparison of all three validators is underway.
Veascan is moving to the new SDK, and work started on the integration with the V2 gateways.
Kleros Foresight
The Devcon attendance and satisfaction markets went live and were extended to 30 September because trading had not converged. Kleros Cooperative and Seer members received credits to take part.
The permissionless Foresight app gained a prediction page with charts and a trade wallet. Smaller items: the unique traders count was corrected and chart loading was optimised.
Proof of Humanity V2
The revamped interface went live at the end of August, and follow-up fixes shipped in September.
Scout and Curate
Scout added the Hyperliquid and Arc chains, and Curate added Arc mainnet support. The Kleros token list shows all registered tokens again, more than 5,000 of them, and moving the MetaMask Scout Snap to the Scout API is in review.
API3 plans to add the Scout database to its hub of verified data, and WPulse will use Kleros address tags to score wallets.
Curate V1 deprecation notices were added to the documentation: existing V1 lists keep working, but Kleros no longer creates new V1 registries or offers V1 list creation in its frontends.
From the community came a pull request to verify a list's full contents without trusting an indexer and a proposal for a concession window after a challenge. The team is engaging with both.
Reality and Oracles
A simple Reality arbitrator is deployed on Rootstock for an upcoming Seer and Foresight deployment there, and a notification bot for it is in progress.
AI and Agents
ClawBank created the first disputes through the new dispute service, first on testnet and then on Court V2 beta, and Meridian confirmed it will use the service next.
An x402 integration kit, a reference implementation for adding Kleros dispute resolution to x402 payments, is on testnet with escrow and direct-payment options, as well as ERC-8004 reputation feedback.
The AI juror experiment continued on Court V2 with a new agent juror and dashboard updates, and the first people outside the team are being onboarded to run their own agents.
Smaller items: version 0.3.0 of the Kleros CLI added V2 testnet support.
Website
ai.kleros.io got SEO and AI readiness improvements.
What's Next
The permissionless Foresight app moves on to its prediction flow, and in November the team heads to Devcon in Mumbai.
