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Realtime multichain data in one platform

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POWERING WEB3's TOP APPS

Speed that sets the standard

Data availability within 200ms of block propagation.

Multichain made simple

60+ chains, one unified API.

Rich, ready-to-use data

Onchain prices, metadata, and activity feeds — pre-enriched for your app.

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20MRequests handled per month
1M+Wallets supported
100%Tokens tab traffic secured

Sim isn't just an API vendor — they're a strategic partner. Their roadmap aligns with our mission to make Farcaster the most user-friendly wallet in crypto.”

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Dan RomeroFOUNDER OF FARCASTER
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Multichain Unlocked – One unified API call

Abstract
Ancient8
Apechain
Arbitrum
Arbitrum Nova
Avalanche
Avalanche
B3
Base
Base
Berachain
Blast
BNB
BOB
Boba
Celo
Corn
Cyber
Degen
Eclipse
Ethereum
Fantom
Flare
Forma
Fraxtal
Funki Chain
Gnosis
Ham
Hychain
Ink
Optimism
Optimism
Kaia
Linea
Lisk
Mantle
Metis
Mint
Mode
Monad
Omni
opBNB
Optimism
Polygon
Proof of Play
Proof of Play
Rari
Redstone
Ronin
Scroll
Sei
Sepolia
Shape
Solana
Soneium
Sonic
Superposition
Superseed
Swell
Tron
Unichain
Wemix
World Chain
Xai
Zero Network
Polygon zkEVM
ZkSync
Zora
Explore all chains

Discover Sim APIs

Balances

All token balances for a wallet or address, ordered by USD value.

EVMSVM

Activity

Derived activities including swaps, transfers, and approvals within transactions for any address.

EVM

Transactions

Quick and accurate lookup of transactions associated with any address.

EVMSVM
Top holders#12345Address0x1c4a…b9260xfff4…9a6a0xeaea…ee780x7756…b2a60x7756…42a6Balance60,533,546.222,751,557.2571,996,008.361,750,172.151,376,694.80ETH

Token Holders

Holders of an ERC20 token, sorted by balance.

EVM

Collectibles

All NFT (ERC721 and ERC1155) balances, including IDs and metadata.

EVM
"chain":"ethereum""contract_address":"0xa0b86991c6218b36c1d19d4a2e9eb0ce3606eb48""price_usd":0.9999999997742213""symbol":"USDC",

Token Info

Metadata including symbol, name, decimals, supply information, logo URLs, and realtime prices.

EVM

"We were able to both launch and sustain high RPS on Solana and many other EVM chains."

Brandon Kumar, Co-Founder of Layer3

chains

THE GOLD STANDARD

Sim is part of Dune - pioneering onchain data since 2018

Trusted by Fortune 500 companies, leading investors, government agencies, and crypto teams worldwide.

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