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title Robinhood API
description Free Robinhood Chain block explorer API from Blockscout, the official explorer for Robinhood's Arbitrum Orbit L2 for tokenized stocks and RWAs.

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).

Blockscout provides full API access on all tiers, including a generous free plan.

Robinhood Chain ID: 4663
Explorer: robinhoodchain.blockscout.com
Blockscout 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 Blockscout 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 Blockscout API tiers, including free.

Get the current gas price

There is no Robinhood-specific gas endpoint. Use the standard Blockscout gas routes with chain_id=4663:

# Etherscan-compatible gas oracle (module=gastracker)
curl "https://api.blockscout.com/v2/api?chain_id=4663&module=gastracker&action=gasoracle&apikey=proapi_YOUR_KEY"

# REST API network stats — the response includes current gas_prices in Gwei
curl "https://api.blockscout.com/4663/api/v2/stats?apikey=proapi_YOUR_KEY"

For raw node data, call the ETH RPC endpoint with the eth_gasPrice method (see the POST example below).

Blockscout 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_getLogs`

Limited 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 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, just 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

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

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