Breaking DeFi barriers with Blast

Leveraging the unique features of Cross Finance, which blends aspects of traditional finance and decentralized technologies, Blast's API services support CrossFi builders by offering dedicated and public APIs. This integration allows developers to create scalable, efficient, and innovative DeFi apps.

Benefits of CrossFi

About CrossFi

CrossFi Chain is a Layer 1 blockchain built by Cross Finance, with a modular architecture that combines the strengths of Cosmos and Ethereum Virtual Machine (EVM) into a unified and efficient system. The Cosmos pillar handles operations such as consensus mechanisms, block production and verification, transaction processing, and new coin emissions, while the EVM side is dedicated to facilitating interactions with smart contracts and launching a range of decentralized applications, products, and services.

Tendermint Core represents the foundation of CrossFi Chain. Known for its speed, this BFT consensus protocol ensures secure, fraud-resistant transactions, thus allowing for unlimited scaling opportunities. The Ethermint protocol makes the CrossFi Chain fully EVM compliant. Evmos protocol acts as a bridge that facilitates transactions between CrossFi Chain and other EVM-compatible networks.

Key Features of CrossFi Chain: Ethereum-Compatible Smart Contract Environment, Anonymous Payments, Account Abstraction (incorporating features like biometrics and 2FA), Cross-Chain Bridges, Instant Payment Channels, Integration with MetaMask and Other Wallets, Creation of Crypto Assets and other DeFi Services.

Free Public API for CrossFi Chain

CrossFi Testnet

The CrossFi Testnet mimics the capabilities and environment of the mainnet network, allowing developers to experiment and test their dApps before launching them.

Public RPC Endpoint

Public WSS Endpoint





Returns the number of the most recent block

eth_blockNumber response

Returns the number of the most recent block


An integer value of the current block number the client is on


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

Blast Features for CrossFi Chain Developers

Core API

Blast custom APIs offer optimized throughput and reduced latency for transactions on CrossFi Chain and enable access to real-time data, transaction history and network status.

Included with all plans

Archive Nodes

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

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

Debug API

The Debug API gives CrossFi 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

Frequently Asked Questions

How does the CrossFi Chain handle security?

CrossFi blockchain is based on a Tendermint modular architecture. The BFT consensus protocol is able to eliminate fraud, because the Tendermint algorithm has the ability to automatically block nodes that transmit incorrect information during validation.

Can you stake on CrossFi Chain?

CrossFi Chain is a PoS blockchain, which means that the power of validators weights on the amount of staked tokens. The tokens can be delegated by the validator itself or can be delegated to the validator by other token holders. Any user in the system can declare their intention to become a validator.

What Defi application does the CrossFi Chain have?

CrossFi gives users the opportunity to use financial instruments beyond the blockchain environment like online Web3 banking that combines fiat and cryptocurrency transactions via CrossFi App, accept crypto payments online and offline via CrossFi Business, or multi-purpose DeFi via xAPP.

What is Blast?

Blast is a decentralized API provider platform focused on performance and reliability. The platform enables users' instant access to the blockchain after just a few steps, using stable coin payments, while at the same time using third-party node providers distributed all over the globe in order to ensure unmatched response times in the Web3 space as well as increased reliability.

Where do I get support if my Blast APIs are not working on CrossFi Chain?

The Bware Labs team is available 24/7 via Discord for support! Just join our server and write down your questions in the Technical Support channel.

Blast Resources for CrossFi Developers

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

Read Documentation