Multi-chain RPC and blockchain data APIs
One API key for JSON-RPC across all supported chains, and for the Data API on chains where it is available, metered in CU (prices follow your plan configuration).
Start free — continue with GitHub, Google or an Ethereum wallet. Your account is created the first time you log in.
curl -X POST https://dev-api.blockvectra.network/v1/robinhood_mainnet/<YOUR_API_KEY> \
-H "content-type: application/json" \
-d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}'3 chains supportedOne key, all chainsJSON-RPC + Data APIMetered in CU
Two ways in
JSON-RPC
Standard EVM JSON-RPC methods (available methods vary by chain; debug_trace* is open on select chains only). Pass your API key in the path or an x-api-key header. Each method is metered by its own CU weight.
View the JSON-RPC reference →Data API
REST endpoints for blocks, transactions (with logs and traces), address activity and balances, token transfers and holders, token metadata, NFTs, DEX trades and daily prices, tokenized stocks, and data freshness. Available datasets and history vary by chain.
View the Data API reference →Featured data
Tokenized stocks
US stocks and ETFs issued on-chain as ERC-20 tokens from a single factory contract, with queryable address, name, symbol, and decimals.
Available on Robinhood Chain
View datasets overview →DEX trades & daily prices
Indexes on-chain swaps and pools from Uniswap V3/V4 (plus a handful of V2 pools), with daily OHLC prices per asset pair computed with integer-exact precision.
Available on Robinhood Chain
View datasets overview →NFT holdings
Indexes every ERC-721/1155 transfer, exposing current holders and ERC-1155 balances.
View datasets overview →Token balances & holders
Maintains address balances and a holder index from ERC-20 transfer history, plus token metadata.
View datasets overview →Transaction traces
Call-tree EVM execution traces (callTracer format), including contract creations and native transfers. Every trace is checked against its block hash, so chain reorganizations never leave stale data behind. Trace data is available from a certain block onward (none before it), with a small number of scattered gaps.
Available on Robinhood Chain
View datasets overview →Data freshness
How far each dataset lags behind the chain head — queryable via the Data API.
View datasets overview →Why BlockVectra
One key, all chains
The same API key works on all supported chains for JSON-RPC, and for the Data API on chains where it is available. Balance, CU buckets, and free-plan rate limits are pooled across all chains — no per-chain splits.
Generic and chain-native data
Beyond blocks and transactions: derived datasets covering tokenized stocks, DEX activity, NFTs, and holders, continuously indexed and queryable via the Data API.
Transparent definitions, transparent metering
The docs give an overview of every data category, the Data API reference documents each endpoint's fields and response semantics, and every successful chain-scoped Data API response reports the indexed block height and the data's refresh time. JSON-RPC per-method CU weights are published on the Pricing page and are the same weights used for billing.
Supported chains
Robinhood Chain
robinhood_mainnet
Chain ID 4663
https://dev-api.blockvectra.network/v1/robinhood_mainnet/{api_key}
Trace data is available from a certain block onward, with a small number of gaps
Ethereum
eth_mainnet
Chain ID 1
https://dev-api.blockvectra.network/v1/eth_mainnet/{api_key}
HyperEVM
hyperevm_mainnet
Chain ID 999
Native token HYPE · Blocks ~1 s · Instant finality
https://dev-api.blockvectra.network/v1/hyperevm_mainnet/{api_key}
Free plan
Includes 30,000,000 CU sign-up bonus. Each 30-day cycle starts on first billed usage and automatically refills up to 30,000,000 CU at the end of the period (no accumulation; granted credits are not clawed back, except for credits obtained in violation, see Terms of Service). All keys share an average of 5 calls per second, and short bursts are allowed. Make a paid top-up at any time to remove the call rate limit while keeping all remaining balance.
about 2,000,000 eth_call calls
No credit card required — sign up instantly with GitHub, Google, or your wallet.
Your first paid top-up permanently upgrades the account and removes the per-second call limit.