# Sounder Liquidity

*Cross-venue liquidity-depth reader for Robinhood Chain (chain 4663). Official posts say it reads pool geometries off chain, publishes depth, and plans a router that charges a fee, *

Cross-venue liquidity-depth reader for Robinhood Chain (chain 4663). Official posts say it reads pool geometries off chain, publishes depth, and plans a router that charges a fee, cheaper if paid in $SOUNDER.

## At a glance

- **Type:** infrastructure
- **Category:** explorers-data
- **Status:** active
- **Website:** https://www.sounderliq.app/docs

## The take

### Best for
- Reading pool depth or chain analytics on Robinhood Chain

### Watch out
- Execution routers described as upcoming may not be live

## Key facts

- **What it is:** Cross-venue liquidity-depth reader for Robinhood Chain (chain 4663). Official posts say it reads pool geometries off chain, publishes depth, and plans a router that charges a fee, cheaper if paid in $SOUNDER. _(confidence 50%)_
- **X:** @SounderLiq _(confidence 60%)_
- **Website:** https://www.sounderliq.app/docs _(confidence 40%)_
- **Status (as captured):** live _(confidence 45%)_

## Key features

- **Robinhood Chain presence** _(confidence 50%)_: Official 2026-09-04 posts: docs on how Sounder reads four pool geometries off chain 4663; 'it reads every pool on chain 4663'.

## Key influencers & builders (X)

- [SounderLiq (@SounderLiq)](https://x.com/SounderLiq) · *Project account*

## Related entities

- [Robinhood Chain](https://hoodl2.com/entity/robinhood-chain) — builds on

## Sources

1. [The docs are up. Twelve sections on how Sounder reads four pool geometries off chain 4663, walks depth tick by tick... https://www.sounderli](https://x.com/SounderLiq/status/2095796886154137999) — @SounderLiq
2. [Sounder measures today: it reads every pool on chain 4663 and publishes depth and dispersion. That part is free and public. Execution is wha](https://x.com/SounderLiq/status/2095782308473168098) — @SounderLiq

---

Last reviewed: 4 Sept 2026  
Canonical: https://hoodl2.com/entity/sounder-liquidity  
Source: HoodL2 (https://hoodl2.com) — an independent, sourced reference for the Robinhood Chain ecosystem. Not affiliated with Robinhood Markets or its subsidiaries.