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Moonbeam Network

Introduction

Moonbeam is an Ethereum-compatible smart contract parachain on Polkadot.

Moonbeam is much more than just an EVM implementation: it’s a highly specialized Layer 1.5 chain that mirrors Ethereum’s Web3 RPC, accounts, keys, subscriptions, logs, and more. The Moonbeam platform extends the base Ethereum feature set with additional features such as on-chain governance, staking, and cross-chain integrations.

Quick facts

Property Value
Moonbeam Testnet Moonbase Alpha chainId 1287
Moonbeam Polkadot 1284
Moonriver Kusama 1285
Blockchain Explorer https://moonbase-blockscout.testnet.moonbeam.network/
Block time ~2 seconds
Data refresh latency ~12 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/
Get ERC20 token transfers for address
Class A
Given chain_id, wallet address and contract-address, return all ERC20 token contract transfers along with their historical prices at the time of their transfer.
GET /v1/:chain_id/address/:address/transfers_v2/
Get token holders as of any block height
Class A
Given chain_id and wallet address, return a paginated list of token holders. If block-height is omitted, the latest block is used.
GET /v1/:chain_id/tokens/:address/token_holders/
Get log events by contract address
Class A
Given chain_id and contract address, return a paginated list of decoded log events emitted by a particular smart contract.
GET /v1/:chain_id/events/address/:address/
Get log events by topic hash(es)
Class A
Given chain_id and topic hash(es), return a paginated list of decoded log events with one or more topic hashes separated by a comma.
GET /v1/:chain_id/events/topics/:topic/

Go to Covalent’s API Reference

Appendix

Moonbeam token

The Moonbeam token GLMR is the native token of the Moonbeam network. This is similar to Ether in Ethereum. To interact with the Moonbeam network, GLMR tokens are required to pay gas fees. The Covalent API response returns gas_* fields in fiat units.

Last modified: May 24, 2022: Klaytn Testnet info removed (#205) (fa20a74)