Overview Docs

Build on Arbitrum

Faster speeds, lower costs, and high security make Arbitrum one of the top L2s around. Build on Arbitrum with Blocklith APIs and RPC nodes to create, prototype, and deploy powerful dapps faster than anyone else.

Trusted by Industry Leaders

Arbitrum APIs
to Empower Any Dapp

Blocklith APIs with Arbitrum solution unlock the power of on-chain data so you can create a best-in-class dapp quickly and easily, whatever you’re building on Arbitrum.

Arbitrum DeFi API

Access Arbitrum liquidity pairs and liquidity reserves with one API call.

More about DeFi API

Arbitrum DeFi API interface showing ETH-USDC pairs on Uniswap and 1inch

Arbitrum NFT API

Find Arbitrum NFT holders, collections, transfers, and price data in a few clicks.

More about NFT API

Arbitrum NFT API showing collectible images and code example for querying NFTs

Arbitrum Streams API

Stream Arbitrum data in real-time. Set custom filters and send live data to your backend.

More about Streams API

Arbitrum Streams API interface showing live transaction events like deposits and withdrawals

Deploy Faster

Build on Arbitrum using Blocklith APIs and get to market on average 87% faster. Get the key data you need to build a high-quality dapp while reducing development time and cost. Using Blocklith Arbitrum APIs, you can quickly fetch and leverage:

Token data
Transactions
NFT data
Events
Block data
Accounts

Cross-Chain From Day One

Build on Arbitrum once, then deploy your dapp to any supported EVM chain. Blocklith APIs and SDKs are fully cross-chain the moment you start building.

Blocklith is fully integrated with chains like Ethereum, Avalanche, Polygon, Optimism, Fantom, Aptos, Solana, and many more.

Our customers reduce development time, cost, and complexity

Blocklith’s NFT API lets us focus on our user experience without worrying about scaling to millions of users for the new Portfolio dapp.

Picture of <span class="overhead-title">Product Manager</span> Kai Huang

Product Manager Kai Huang

Metamask

If you ask me, Blocklith’ APIs are unparalleled in terms of power and flexibility. Thanks to their excellent documentation, we were able to seamlessly integrate our game with the blockchain in just a matter of days, rather than the months it would have taken without their support.

Takuya Yamazaki Main Engineer, Drecom NFT Development

Compared to building in-house, we avoided ~$4,000/month per chain in infra costs. Game devs benefit from better tools, and users enjoy a smoother, cross-chain experience on Ronin Wallet.

Bailey Tan Head of Ecosystem, Ronin

Blocklith’s NFT API lets us focus on our user experience without worrying about scaling to millions of users for the new Portfolio dapp.

Kai Huang Product Manager, Metamask

Blocklith allows us to query NFTs really fast for Lens users, were easy to integrate and is a great product.

Josh Backend Lead, Lens Protocol

Blocklith has been one of the key factors in the initial growth of RTFKT post-acquisition, allowing us to delegate sensitive infrastructure requirements to them while focusing on adapting our team. Their support and team are a complete delight to work with — always trying to find solutions and improve further. I can only recommend getting in touch and using their services!

Samuel Cardillo CTO, RTFKT

Blocklith's API allowed us to fetch user tokens and NFT balances for multiple Ethereum-based chains easily.

David Phan CTO, XDEFI Wallet

Blocklith APIs saved us a lot of time, were easy to integrate and helped us go to market faster.

Slava M CEO, Co-Founder Liquidifty

Creating a modern, trusted ecosystem for blockchain can be problematic and time-consuming. Plus, there is a lack of knowledge in this sphere. Fortunately, there is a solution that saves almost 85% of work: Blocklith APIs.

Konstantine Lead Developer, Tryhards

We tried using different APIs to give us the data that we need. All the other services were not able to provide us with the accurate data across all these chains. Blocklith APIs have provided us with this NFT data in a very easy way.

Ori Levi CEO & Co-founder, NFTrade

Blocklith is a top choice for developers looking to quickly launch and scale powerful Web3 games.

Ken Timsit Managing Director, Cronos Chain

Blocklith provides world-class APIs to developers across the globe, allowing companies and projects of all sizes to seamlessly integrate blockchain into their solutions stack and scale with easy.

Sandeep Nailwal Co-founder, Polygon

We saved a lot of time. I would say we cut development time by at least 75% using Blocklith. We didn’t have to worry about querying the blockchain at all.

Nathan Criel Backend Engineer, Delta App

Collaborating with Blocklith has been instrumental in our product development and launch. Their innovative solutions have not only saved us over $200,000 in engineering cost but also allowed us to fully concentrate on perfecting our product, enhancing its user experience, and ensuring its success.

Martin Granström CTO, Unizen

Takuya Yamazaki Main Engineer, Drecom NFT Development

Compared to building in-house, we avoided ~$4,000/month per chain in infra costs. Game devs benefit from better tools, and users enjoy a smoother, cross-chain experience on Ronin Wallet.

Bailey Tan Head of Ecosystem, Ronin