> ## Documentation Index
> Fetch the complete documentation index at: https://kleros.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Scout

> Developer reference for Kleros Scout, the frontend for the curated address tag registry ecosystem, covering registries, tags, and query patterns.

This page documents technical details for Scout. It does not include an integration guide.

***

## What is Scout

* A frontend interface for the Kleros curated address tag registry ecosystem
* Reached its definitive version in May 2026 - the planned feature set is complete, with focus now on growing the unified database
* Over 2.6 million curated on-chain addresses as of May 2026
* Registries: Tokens, CDN, ATQ (Address Tags Query), and single-tag registries

***

## Technical architecture

* Built on Curate smart contracts (Light Curate / GTCR on-chain)
* Data indexed via the GTCR Indexer and Envio HyperIndex
* IPFS uploads go through the Atlas SIWE flow
* Submissions require sign-in at the time of submission; images are persisted in the browser until then
* Submission image size is capped on all registries; the tokens registry enforces a max of 1 MB and a minimum of 128×128 for logos
* ATQ duplicate detection prevents duplicate address tag submissions
* Disputes route to the correct court via JavaScript Court routing
* The evidence section sits outside the submission modal so evidence can be browsed while submitting

***

## Chain support

Ethereum Mainnet, Linea, Avalanche C-Chain, zkSync, Scroll, Gnosis, Celo, Base, Solana, Arbitrum One, OP Mainnet, MegaETH, Polygon, and PulseChain.

***

## Partners using Scout data

* OpenScan and RouteScan (block explorers)
* MonarchLend
* MetaMask Snap (Scout Snap v1.3.8)

***

## GTCR Indexer

* The schema (v0.1.7) includes challenge transaction hashes, challenge dates, and appeal transaction hashes
* An Envio branch is maintained alongside the main branch

***

## Governance

* KIP-87 created a new Curation Court on Gnosis with hidden voting (June 2026)
* Scout registries are planned to migrate to the new court

***

## Links

* App: [app.klerosscout.eth.limo](https://app.klerosscout.eth.limo/)
* Repository: [github.com/kleros/scout](https://github.com/kleros/scout)
* GTCR Indexer: [github.com/kleros/gtcr-indexer](https://github.com/kleros/gtcr-indexer)