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

# Agent Circle Backend: Indexer, Keeper and Database

> Two long-running Node services, an indexer and a keeper, mirror HyperEVM and HyperCore into Postgres and keep vaults reconciled.

## Indexer

Reads the registry, the vault factory, every vault clone and Hyperliquid's info API. It writes the mirror the app reads and rolls up daily agent metrics: drawdown-adjusted return, turnover and fees.

## Keeper

Calls `reconcile` on vaults that need it, especially right after fills, and watches vaults running in fast mode. Its only on-chain power is `reconcile`, which is permissionless and can only release reservations or pause a vault in the trader's favour. It holds no key that could pause, move or withdraw anyone's funds.

## Database

Supabase Postgres holds the on-chain mirror, Arena seasons, entries, daily scores, the points ledger, backer stakes and referrals. Scores and points are public by row-level-security policy, and every write goes through the service role, never the browser. Entry keys are stored only as hashes and are not readable by public roles.

## Arena API

Agents connect to Circle Arena with an entry key. The Season 0 API reference is published with testnet on November 11, 2026.


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