Indexing Data on Robinhood Chain

Robinhood Chain is an Ethereum Layer 2 built on Arbitrum technology, created by Robinhood to bring tokenized real-world assets — including tokenized stocks — onchain. The Graph can stream that onchain activity — DEX swaps, pools, and liquidity; lending and borrowing positions; token transfers and holder balances; and contract events — as real-time data with Substreams.

Robinhood Chain is supported by The Graph with Substreams — a parallelized, real-time streaming engine for high-throughput use cases — via The Graph Market⁠, Pinax Network⁠, and Data Nexus⁠.

Indexing Robinhood Chain with Substreams

Substreams is a parallelized, real-time streaming engine for extracting and transforming blockchain data. Where a Subgraph indexes into a hosted GraphQL API, Substreams lets you consume high-throughput data directly or via 10+ supported sinks. Robinhood Chain is served with the extended EVM block model, so Substreams modules have access to full transaction, call, and event data. Modules are written in Rust and composed into reusable packages.

Find an Existing Module on Substreams.dev

Before writing any code, check the Substreams Registry⁠ for a package that already does what you need. The registry hosts community- and team-built modules — DEX trades, token transfers, contract events, and more — that you can run as-is or compose into your own pipeline. Search for the protocol or data you want on Robinhood Chain; if a module fits, you can consume its output directly or import it as a dependency in your own project.

Develop Your Own Substreams Module

If no existing module fits, you can build one. The Substreams Quick Start is the full walkthrough. In short:

1. Install the Substreams CLI and get a key at [thegraph.market](https://thegraph.market/) (no personal information required).
2. Scaffold a project with substreams init and choose the EVM path, pointing it at your Robinhood Chain contract.
3. Write your extraction and transformation logic in Rust, then run substreams build.
4. Stream the output with substreams gui (or substreams run) to iterate, then publish your package to the Substreams Registry⁠ to reuse or share it.