> ## Documentation Index > Fetch the complete documentation index at: https://goldrush.dev/docs/llms.txt > Use this file to discover all available pages before exploring further. # Monad Onchain Data API > Get token balances and transactions for Monad. 22 endpoints supported. Testnet supported. ## Overview Monad redefines L1 scalability with 10,000 TPS, 1-second finality, and near-zero gas fees while maintaining full EVM compatibility. The next generation of high-performance blockchains. GoldRush offers the most comprehensive Monad 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 Monad Data APIs provide fast, accurate, and developer-friendly access to the essential onchain data you need. ### Supported APIs 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. Low-latency EVM JSON-RPC with global failover and archive depth. Point your existing tooling at the GoldRush endpoint — no code changes required.

Use cases: dApps, wallets, indexers, bots, and trading infrastructure. ## Mainnet | Property | Value | | -------------------- | ------------------------------------------------------- | | **Chain Name** | `monad-mainnet` | | **Chain ID** | `143` | | **Network Type** | Frontier Chain | | **Support Level** | frontier | | **Block Explorer** | [Monad Blockchain Explorer](https://monadexplorer.com/) | | **Official Website** | [Monad Website](https://www.monad.xyz/) | | **Native Gas Token** | MON | ## Testnet | Property | Value | | -------------------- | --------------------------------------------------------------- | | **Chain Name** | `monad-testnet` | | **Chain ID** | `10143` | | **Purpose** | Development and testing network | | **Support Level** | frontier | | **Block Explorer** | [Monad Blockchain Explorer](https://testnet.monadexplorer.com/) | | **Official Website** | [Monad Testnet Website](https://www.monad.xyz/) | | **Native Gas Token** | MON | ## API Usage To use this blockchain network in GoldRush API calls, use: #### Chain Name * `monad-mainnet` (mainnet) * `monad-testnet` (testnet) #### Example API Calls ```bash Chain Name (Mainnet) theme={null} curl -X GET "https://api.covalenthq.com/v1/monad-mainnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=" ``` ```bash Chain Name (Monad Testnet) theme={null} curl -X GET "https://api.covalenthq.com/v1/monad-testnet/address/0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045/balances_v2/?key=" ``` ```bash theme={null} ``` #### SDK Usage ```typescript TypeScript SDK (Mainnet) theme={null} import { GoldRushClient } from "@covalenthq/client-sdk"; const client = new GoldRushClient(""); const resp = await client.BalanceService.getTokenBalancesForWalletAddress({ chainName: "monad-mainnet", walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045" }); ``` ```typescript TypeScript SDK (Monad Testnet) theme={null} import { GoldRushClient } from "@covalenthq/client-sdk"; const client = new GoldRushClient(""); const resp = await client.BalanceService.getTokenBalancesForWalletAddress({ chainName: "monad-testnet", walletAddress: "0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045" }); ``` ## Foundational API Support This chain supports **22** GoldRush Foundational APIs: #### Wallet API * **[Get token balances for address on Monad](/docs/api-reference/foundational-api/balances/get-token-balances-for-address/)** * **[Get native token balance for address on Monad](/docs/api-reference/foundational-api/balances/get-native-token-balance/)** * **[Get historical portfolio value over time on Monad](/docs/api-reference/foundational-api/balances/get-historical-portfolio-value-over-time/)** * **[Get ERC20 token transfers for address on Monad](/docs/api-reference/foundational-api/balances/get-erc20-token-transfers-for-address/)** #### Pricing API * **[Get historical token prices on Monad](/docs/api-reference/foundational-api/utility/get-historical-token-prices/)** #### Security API * **[Get token approvals for address on Monad](/docs/api-reference/foundational-api/security/get-token-approvals-for-address/)** #### Transactions API * **[Get a transaction on Monad](/docs/api-reference/foundational-api/transactions/get-a-transaction/)** * **[Get transaction summary for address on Monad](/docs/api-reference/foundational-api/transactions/get-transaction-summary-for-address/)** * **[Get earliest transactions for address (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-earliest-transactions-for-address-v3/)** * **[Get recent transactions for address (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-recent-transactions-for-address-v3/)** * **[Get paginated transactions for address (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-paginated-transactions-for-address-v3/)** * **[Get bulk time bucket transactions for address (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-time-bucket-transactions-for-address-v3/)** * **[Get all transactions in a block (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-all-transactions-in-a-block/)** * **[Get all transactions in a block by page (v3) on Monad](/docs/api-reference/foundational-api/transactions/get-all-transactions-in-a-block-by-page/)** #### Block Explorer API * **[Get a block on Monad](/docs/api-reference/foundational-api/utility/get-a-block/)** * **[Get all chain statuses on Monad](/docs/api-reference/foundational-api/utility/get-all-chain-statuses/)** * **[Get all chains on Monad](/docs/api-reference/foundational-api/utility/get-all-chains/)** * **[Get block heights on Monad](/docs/api-reference/foundational-api/utility/get-block-heights/)** * **[Get gas prices on Monad](/docs/api-reference/foundational-api/utility/get-gas-prices/)** * **[Get log events by contract address on Monad](/docs/api-reference/foundational-api/utility/get-log-events-by-contract-address/)** * **[Get log events by topic hash(es) on Monad](/docs/api-reference/foundational-api/utility/get-log-events-by-topic-hash/)** * **[Get logs on Monad](/docs/api-reference/foundational-api/utility/get-logs/)** ## JSON-RPC Monad is available on the GoldRush JSON-RPC service. Point your existing EVM tooling (ethers.js, viem, web3.js, or raw HTTP) at the GoldRush endpoint — the standard `eth_*`, `net_*`, `web3_*`, `debug_*`, and `trace_*` methods are supported. #### Endpoint ``` https://rpc.goldrushdata.com/v1/monad-mainnet ``` #### Example JSON-RPC Calls ```bash eth_blockNumber theme={null} curl https://rpc.goldrushdata.com/v1/monad-mainnet \ -H "Authorization: Bearer " \ -H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":1,"method":"eth_blockNumber","params":[]}' ``` ```bash eth_getBalance theme={null} curl https://rpc.goldrushdata.com/v1/monad-mainnet \ -H "Authorization: Bearer " \ -H "Content-Type: application/json" \ -d '{"jsonrpc":"2.0","id":1,"method":"eth_getBalance","params":["0xd8dA6BF26964aF9D7eEd9e03E53415D37aA96045","latest"]}' ``` #### Sample Methods * **[eth\_blockNumber on Monad](/docs/api-reference/json-rpc/monad/eth-blocknumber)** * **[eth\_getBalance on Monad](/docs/api-reference/json-rpc/monad/eth-getbalance)** * **[eth\_call on Monad](/docs/api-reference/json-rpc/monad/eth-call)** * **[eth\_getLogs on Monad](/docs/api-reference/json-rpc/monad/eth-getlogs)** * **[eth\_getTransactionReceipt on Monad](/docs/api-reference/json-rpc/monad/eth-gettransactionreceipt)** See the [full method list and per-method examples for Monad](/docs/api-reference/json-rpc/chains/monad). ## Additional Resources * [GoldRush API Documentation](https://goldrush.dev/docs/) * [Supported Chains List](https://goldrush.dev/chains/) * [API Reference](https://goldrush.dev/docs/api-reference/)