Blast Onchain Data API

Get token balances and transactions for Blast. 22 endpoints supported.

Overview

Blast is an Ethereum L2 with native yield for ETH and Stablecoins.

GoldRush offers the most comprehensive Blast Data API suite for developers, analysts, and enterprises. Whether you’re building a DeFi dashboard, a wallet, a trading bot, an AI agent or a compliance platform, our Blast Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need.

Supported APIs

Foundational API

Access structured historical blockchain data across 100+ chains using REST APIs. Get token balances, transaction histories, decoded event logs, NFT assets, token holders and more.

Use cases: Wallets, portfolio trackers, crypto accounting & tax tools, and DeFi dashboards.

Read docs

Pipeline API

Stream blockchain data directly to your own infrastructure. Push decoded blocks, transactions, event logs, and protocol-specific data into your database, warehouse, queue, or webhook with ABI decoding and SQL transforms built in.

Use cases: Data warehousing, analytics dashboards, ETL pipelines, and backend indexing.

Read docs

Mainnet

Property	Value
Chain Name	blast-mainnet
Chain ID	81457
Network Type	Community Chain
Support Level	community
Block Explorer	Explorer
Official Website	Blast Website
Native Gas Token	ETH

API Usage

To use this blockchain network in GoldRush API calls, use:

Chain Name

• blast-mainnet (mainnet)

Example API Calls

Chain Name (Mainnet)

curl -X GET "https://api.covalenthq.com/v1/blast-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=<GOLDRUSH_API_KEY>"

SDK Usage

TypeScript SDK (Mainnet)

import { GoldRushClient } from "@covalenthq/client-sdk";

const client = new GoldRushClient("<GOLDRUSH_API_KEY>");
const resp = await client.BalanceService.getTokenBalancesForWalletAddress({
    chainName: "blast-mainnet",
    walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045"
});

Foundational API Support

This chain supports 22 GoldRush Foundational APIs:

Wallet API

• Get token balances for address on Blast
• Get native token balance for address on Blast
• Get historical portfolio value over time on Blast
• Get ERC20 token transfers for address on Blast

Pricing API

• Get historical token prices on Blast

Security API

• Get token approvals for address on Blast

Transactions API

• Get a transaction on Blast
• Get transaction summary for address on Blast
• Get earliest transactions for address (v3) on Blast
• Get recent transactions for address (v3) on Blast
• Get paginated transactions for address (v3) on Blast
• Get bulk time bucket transactions for address (v3) on Blast
• Get all transactions in a block (v3) on Blast
• Get all transactions in a block by page (v3) on Blast

Block Explorer API

• Get a block on Blast
• Get all chain statuses on Blast
• Get all chains on Blast
• Get block heights on Blast
• Get gas prices on Blast
• Get log events by contract address on Blast
• Get log events by topic hash(es) on Blast
• Get logs on Blast

Pipeline API Support

This chain supports 4 GoldRush Pipeline API data objects that can be streamed to your infrastructure:

• Blocks
• Transactions
• Logs
• Transfers

Additional Resources

• GoldRush API Documentation
• Supported Chains List
• API Reference