Harmony
Introduction
Harmony is an open and fast blockchain. The production mainnet supports 4 shards of 1000 nodes, capable of running Ethereum applications with 2-second transaction finality, and 1000 times lower fees than Ethereum.
Harmony is your open platform for assets, collectibles, identity, governance. The secure bridges offer cross-chain asset transfers with Ethereum, Binance and 3 other chains.
Harmony’s Effective Proof-of-Stake (EPoS) reduces centralization while supporting stake delegation, reward compounding and double-sign slashing.
Harmony aims to build an open network of nodes operated and governed by a large community. This node community is called Pangaea.
Quick facts
Property | Value |
---|---|
Harmony Mainnet (Shard 0 ) chainId |
1666600000 |
Harmony Blockchain Explorer | https://explorer.harmony.one/ |
Block time | ~2 seconds |
Supported endpoints
Get token balances for address
Class A
Given
chain_id
and wallet address
, return current token balances along with their spot prices. This endpoint supports a variety of token standards like ERC20, ERC721 and ERC1155. As a special case, network native tokens like ETH on Ethereum are also returned even though it’s not a token contract.
GET
/v1/:chain_id/address/:address/balances_v2/
Get transactions for address
Class A
Given
chain_id
and wallet address
, return all transactions along with their decoded log events. This endpoint does a deep-crawl of the blockchain to retrieve all kinds of transactions that references the address
including indexed topics within the event logs.
GET
/v1/:chain_id/address/:address/transactions_v2/
Go to Covalent’s API Reference
Last modified: October 27, 2022: october-changelog-2022 (#243) (b6121bb)