Enhanced development power for Starknet through Blast API

Blast offers complete support for Starknet, a layer-2 solution powered by STARK proofs, allowing devs to scale with no security compromises.

Benefits of Starknet

About Starknet

Starknet is a Layer 2 (L2) network based on the Validity-Rollup (or ZK-Rollup) model, functioning atop Ethereum to allow dApps to scale extensively without sacrificing security. It bundles transactions into a STARK proof computed off-chain, then submits this proof to Ethereum as a single transaction. This method enhances throughput, speeds up processing, and reduces costs while maintaining Ethereum's strong security. Blockchains typically aim for three key features: security, decentralization, and scalability. However, a well-known dilemma in blockchain technology is the difficulty in achieving all three simultaneously, often leading to a compromise on one aspect. Ethereum focuses more on security and decentralization, which affects its scalability. As the Ethereum user base grows, it faces slower transactions and higher gas prices, limiting its broader adoption.

The Starknet Validity Rollup offers a solution for Ethereum's scalability challenges without compromising its security and decentralization. Starknet amplifies scalability by processing transactions off the Ethereum Mainnet (off-chain) while keeping a transaction summary on-chain. Transactions are batched into blocks, processed off-chain, and then condensed into a single on-chain transaction. Ensuring the integrity of these off-chain transactions is crucial, which Starknet achieves through STARK (Scalable, Transparent ARgument of Knowledge) proofs for verifiable computation. Starknet then sends only the necessary block information and proof to Ethereum for efficient verification.

Benefit from free support for Starknet Builders with Blast Public API!

Starknet Mainnet

Starknet is a L2 solution that enhances Ethereum transactions by making them faster, more affordable, and more secure through the use of zk-STARKs technology.

Public RPC Default Endpoint

Public RPC Endpoint v0.7

Public RPC Endpoint v0.6

Public RPC Endpoint v0.5

Public RPC Endpoint v0.4





Returns the currently configured StarkNet chain id

starknet_chainId response

Returns the currently configured StarkNet chain id


A hexadecimal value in string format representing the integer of the current chain id


curl -X POST \
-H 'Content-Type: application/json' \
-d '{"jsonrpc":"2.0","id":0,"method":"starknet_chainId"}'
See all Public APIs

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Blast Features for Starknet Developers

Increased Public API Throughput

Starknet builders can benefit from up to 100 requests/second on the Blast public Starknet API, and up to 10000 requests/second on the paid plans.

Included with all plans

Debug API

The Debug API gives OP developers access to several non-standard RPC methods, which will allow them to inspect, debug and set certain debugging flags during runtime. Debug API is enabled starting with the Developer plan.

Included with Developer, Startup, Enterprise & Pay As You Go plans

Builder API

The Builder APIs are a suite of powerful API endpoints providing access to more comprehensive and better structured blockchain data on the Starknet blockchain. You can start using the Builder APIs with the Free plan.

Included with all plans

Archive Nodes

These nodes retain all historical transaction information on the Starknet blockchain from the genesis block to the present, enabling users to query and retrieve any past information. The Archive Nodes feature is enabled starting with the Developer plan.

Included with Developer, Startup, Enterprise & Pay As You Go plans

Frequently Asked Questions

What is Starknet?

Starknet is a validity rollup, commonly known as a zk-rollup, that functions on the Ethereum network, developed by Starkware Industries.

Can I use Blast to add a Starknet API in MetaMask?

Yes, you can add both a public or a dedicated API for Starknet by simply clicking “Add to Metamask“ on the chain page.

How can I use Blast to upload my project on Starknet?

You can use Blast to connect to Starknet by simply copy-pasting a line of code. Start for free and scale your subscription according to the resources you need.

Where can I find resources to start building on Starknet?

Getting started with developing on Starknet by using Blast APIs is straightforward. You can follow the instructions in our documentation.

Why should I build on Starknet using Blast?

To further enhance our collaboration with Starkware Industries, we have extended support for Starknet in Blast API by enhancing the development experience. Starknet builders can enjoy a throughput of 100 requests per second as well as support for Starknet in our “Pay as you Go“ payment plan! For detailed pricing you can take a look on our pricing page.

Blast Resources for Starknet Developers

Getting started with developing on Starknet by using Blast APIs is straightforward. You can follow the instructions in our documentation to set up your development environment and start building.

Starknet Articles

Introducing the Blast NFT APIs for Starknet

Introducing the Blast NFT APIs for Starknet

Our infrastructure partnership with Starknet leaps forward with the launch of the Starknet NFT API, now available within the Blast Builder APIs. This development enables Starknet builders to launch, verify, analyze, or display NFTs easily, and quickly with Blast. As NFTs keep their traction, projects, and developers continue building various NFT-based projects. However, it is […]

Blast Team

3 min read
Blast built by Bware Labs Receives Grant from Starknet for Furthering Network Support

Blast built by Bware Labs Receives Grant from Starknet for Furthering Network Support

Bware Labs has received a development grant from the Starknet Foundation for extending support for the network within Blast, the company’s flagship product. Blast is a decentralized blockchain API platform designed to solve Web3 access challenges related to reliability, latency, and centralization. The purpose of Bware Labs has always been to enable blockchain developers in fulfilling […]

Blast Team

2 min read