Robinhood API - Blockscout

Robinhood Chain API Access with Blockscout

Robinhood Chain is live, and Blockscout is its official block explorer, powering the chain from block one. Robinhood, one of the world’s largest fintech companies, is bringing tokenized stocks, ETPs, and RWAs onchain, and Blockscout provides the transparency layer to track all of it — transactions, batches, addresses, and gas, in real time. The chain is an Ethereum Layer 2 built on Arbitrum Orbit, settling to Ethereum with blob data availability. It runs ~0.1 second block times with sub-cent gas paid in ETH, and trading actions on the chain are gas-free for users for the first 90 days (deploying contracts and other developer transactions still cost gas). Etherscan does not currently support Robinhood Chain. Blockscout provides full API access on all tiers, including a generous free plan. Robinhood Chain Chain ID: 4663
Explorer: robinhoodchain.blockscout.com
PRO API Base: https://api.blockscout.com (use chain_id=4663)
API Docs: robinhoodchain.blockscout.com/api-docs

Quick Start

# Get ETH balance for an address on Robinhood Chain via PRO API
curl "https://api.blockscout.com/v2/api?chain_id=4663&module=account&action=balance&address=0xYOUR_ADDRESS&apikey=proapi_YOUR_KEY"

Get a free API key at dev.blockscout.com — required for all PRO API tiers, including free.

PRO API Routes for Robinhood Chain

All routes use Robinhood Chain’s chain ID (4663): JSON RPC v2 (Etherscan-compatible):

https://api.blockscout.com/v2/api?chain_id=4663&module=account&action=txlist&address=0x...&apikey=proapi_xxx

JSON RPC:

https://api.blockscout.com/4663/api?module=account&action=txlist&address=0x...&apikey=proapi_xxx

REST API:

https://api.blockscout.com/4663/api/v2/addresses/0x.../transactions?apikey=proapi_xxx

ETH RPC (POST):

curl -H "content-type: application/json" \
  -H "authorization: Bearer proapi_xxx" \
  -X POST \
  --data '{"id":0,"jsonrpc":"2.0","method":"eth_blockNumber","params":[]}' \
  https://api.blockscout.com/4663/json-rpc

Available Endpoints

Etherscan-Compatible Modules

All standard modules work identically to Etherscan’s interface:

Account — Balances, transaction lists, token transfers, internal transactions, ERC-20/721/1155 activity (plus Blockscout extras: eth_get_balance, pendingtxlist, tokenbalance, tokenlist)
Contract — ABI, source code, verification (plus: listcontracts, getcontractcreation, Vyper & Sourcify verification)
Transaction — Status checks (plus: gettxinfo)
Logs — Event logs with filtering by address, topics, block range
Token — Token metadata, holders
Stats — Supply, chain statistics, coin price
Block — Block rewards, countdown, block number by time
Gas Tracker — Gas oracle, gas estimates

REST API

Blockscout’s native REST API provides enriched metadata, decoded transaction data, NFT details, smart contract read/write, and chain health monitoring. This is explorer-enriched data, not raw RPC — token metadata, internal transactions, and decoded logs come out of the same endpoints with no extra indexing work on your side. → Full REST API Reference

Rate limit update: txlistinternal and eth_getLogsLimited to 1,000 records on Robinhood Chain to improve overall responsiveness for all users.This change impacts:

RPC API — api?action=txlistinternal&module=account
ETH RPC API — /json-rpc, eth_getLogs method

If you rely on paginated pulls of internal transactions or logs at the old limit, update your pagination logic to request in batches of 1,000 (or smaller) going forward.

Robinhood Chain API Pricing

Tier	Rate Limit	Credits	Price
Free	5 RPS	100K/day	$0
Builder	15 RPS	100M/mo	$49/mo
Pro	30 RPS	500M/mo	$199/mo
Business	50 RPS	3B/mo	$999/mo
Enterprise	Custom	Custom	Contact us

One API key covers every Blockscout-supported chain. Build on Robinhood Chain today, expand to Ethereum, Base, Arbitrum, and 100+ more networks by changing a chain_id parameter — no additional setup.

Migrating from Etherscan-style APIs?

Use the same call structure with Blockscout if you’re already familiar with the Etherscan API shape. Since both APIs now use a unified multichain format, switching is a base URL and key swap:

# Before (Etherscan V2 style — unsupported on Robinhood Chain)
resp = requests.get("https://api.etherscan.io/v2/api", params={
    "chainid": 4663,
    "module": "account", "action": "txlist",
    "address": addr, "apikey": os.environ["ETHERSCAN_KEY"]
})

# After (Blockscout PRO API — free tier available)
resp = requests.get("https://api.blockscout.com/v2/api", params={
    "chain_id": 4663,
    "module": "account", "action": "txlist",
    "address": addr, "apikey": os.environ["BLOCKSCOUT_KEY"]
})

Same structure: chainid → chain_id, swap the base URL and key. → Full Migration Guide

What Developers Build on Robinhood Chain with Blockscout’s API

Tokenized Stocks & RWAs: Robinhood Chain’s core use case is bringing tokenized equities, ETPs, and real-world assets onchain. Blockscout’s API exposes decoded token transfers, holder data, and transaction history that power portfolio and settlement tooling built on top of these assets. Wallets & Portfolio Trackers: Pull complete transaction histories, multi-token balances, and NFT holdings for Robinhood Chain addresses through a single API key that also covers every other supported chain. DeFi & Yield Infrastructure: Yield protocols such as Morpho and Midas run on Robinhood Chain. API access to contract state, event logs, and token transfers powers analytics dashboards, position monitoring, and automated strategies. High-Frequency Applications: With ~0.1 second block times, Robinhood Chain suits applications that need near-real-time confirmation. The REST API’s decoded transaction, logs, and internal-transaction endpoints let builders track activity without running their own indexing infrastructure.

Robinhood Chain on Blockscout

Blockscout is Robinhood Chain’s official block explorer, running the chain from block one. The complete decoded transaction object lives at the base endpoint — status, from/to, value, gas used, fee, method, and decoded input when the contract is verified:

curl "https://api.blockscout.com/4663/api/v2/transactions/<tx_hash>?apikey=$BLOCKSCOUT_API_KEY"

Sub-endpoints follow the same pattern for the rest of the data: /logs for decoded event logs, /token-transfers, /internal-transactions for contract-to-contract calls, /state-changes for balance diffs, and /raw-trace for the full execution trace.

Get Started

Get a free API key at dev.blockscout.com
Use chain_id=4663 in your PRO API requests
Explore endpoints at robinhoodchain.blockscout.com/api-docs

→ Start Building on Robinhood Chain · → PRO API Routes Reference

​Robinhood Chain API Access with Blockscout

​Quick Start

​PRO API Routes for Robinhood Chain

​Available Endpoints

​Etherscan-Compatible Modules

​REST API

​Robinhood Chain API Pricing

​Migrating from Etherscan-style APIs?

​What Developers Build on Robinhood Chain with Blockscout’s API

​Robinhood Chain on Blockscout

​Get Started