@sei-js/mcp-server/dist/esm/core/services/tokens.js

Model Context Protocol (MCP) server for interacting with EVM-compatible networks

import { formatUnits, getContract } from 'viem';
import { getPublicClient } from './clients.js';
// Standard ERC20 ABI (minimal for reading)
const erc20Abi = [
    {
        inputs: [],
        name: 'name',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    },
    {
        inputs: [],
        name: 'symbol',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    },
    {
        inputs: [],
        name: 'decimals',
        outputs: [{ type: 'uint8' }],
        stateMutability: 'view',
        type: 'function'
    },
    {
        inputs: [],
        name: 'totalSupply',
        outputs: [{ type: 'uint256' }],
        stateMutability: 'view',
        type: 'function'
    }
];
// Standard ERC721 ABI (minimal for reading)
const erc721Abi = [
    {
        inputs: [],
        name: 'name',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    },
    {
        inputs: [],
        name: 'symbol',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    },
    {
        inputs: [{ type: 'uint256', name: 'tokenId' }],
        name: 'tokenURI',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    }
];
// Standard ERC1155 ABI (minimal for reading)
const erc1155Abi = [
    {
        inputs: [{ type: 'uint256', name: 'id' }],
        name: 'uri',
        outputs: [{ type: 'string' }],
        stateMutability: 'view',
        type: 'function'
    }
];
/**
 * Get ERC20 token information
 */
export async function getERC20TokenInfo(tokenAddress, network = 'sei') {
    const publicClient = getPublicClient(network);
    const contract = getContract({
        address: tokenAddress,
        abi: erc20Abi,
        client: publicClient
    });
    const [name, symbol, decimals, totalSupply] = await Promise.all([
        contract.read.name(),
        contract.read.symbol(),
        contract.read.decimals(),
        contract.read.totalSupply()
    ]);
    return {
        name,
        symbol,
        decimals,
        totalSupply,
        formattedTotalSupply: formatUnits(totalSupply, decimals)
    };
}
/**
 * Get ERC721 token metadata
 */
export async function getERC721TokenMetadata(tokenAddress, tokenId, network = 'sei') {
    const publicClient = getPublicClient(network);
    const contract = getContract({
        address: tokenAddress,
        abi: erc721Abi,
        client: publicClient
    });
    const [name, symbol, tokenURI] = await Promise.all([contract.read.name(), contract.read.symbol(), contract.read.tokenURI([tokenId])]);
    return {
        name,
        symbol,
        tokenURI
    };
}
/**
 * Get ERC1155 token URI
 */
export async function getERC1155TokenURI(tokenAddress, tokenId, network = 'sei') {
    const publicClient = getPublicClient(network);
    const contract = getContract({
        address: tokenAddress,
        abi: erc1155Abi,
        client: publicClient
    });
    return contract.read.uri([tokenId]);
}