Base MCP Server

import type { Tool } from "@modelcontextprotocol/sdk/types.js"; import { buyOpenRouterCreditsHandler, callContractHandler, erc20BalanceHandler, erc20TransferHandler, getMorphoVaultsHandler, getOnrampAssetsHandler, onrampHandler, } from "./handlers.js"; import { Coinbase } from "@coinbase/coinbase-sdk"; const getMorphoVaultsTool: Tool = { name: "get_morpho_vaults", description: "Get the vaults for a given asset", inputSchema: { type: "object", properties: { assetSymbol: { type: "string", description: "Asset symbol by which to filter vaults", }, }, }, }; export type GetMorphoVaultsToolParams = { assetSymbol: string; }; const callContractTool: Tool = { name: "call_contract", description: "Call a contract function", inputSchema: { type: "object", properties: { contractAddress: { type: "string", description: "The address of the contract to call", }, functionName: { type: "string", description: "The name of the function to call", }, functionArgs: { type: "array", description: "The arguments to pass to the function", items: { type: "string", }, }, abi: { type: "string", description: "The ABI of the contract", }, }, }, }; const getOnrampAssetsTool: Tool = { name: "get_onramp_assets", description: "Get the assets available for onramping in a given country / subdivision", inputSchema: { type: "object", properties: { country: { type: "string", description: "ISO 3166-1 two-digit country code string representing the purchasing user's country of residence, e.g., US.", }, subdivision: { type: "string", description: "ISO 3166-2 two-digit country subdivision code representing the purchasing user's subdivision of residence within their country, e.g. NY. Required if the country=“US” because certain states (e.g., NY) have state specific asset restrictions.", }, }, }, }; const onrampTool: Tool = { name: "onramp", description: "Get a URL for onramping funds", inputSchema: { type: "object", properties: { amountUsd: { type: "number", description: "The amount of funds to onramp", }, assetId: { type: "string", enum: Object.values(Coinbase.assets), description: "The asset ID to onramp", }, }, }, }; const erc20BalanceTool: Tool = { name: "erc20_balance", description: "Get the balance of an ERC20 token", inputSchema: { type: "object", properties: { contractAddress: { type: "string", description: "The address of the contract to get the balance of", }, }, }, }; const erc20TransferTool: Tool = { name: "erc20_transfer", description: "Transfer an ERC20 token", inputSchema: { type: "object", properties: { contractAddress: { type: "string", description: "The address of the contract to transfer the token from", }, toAddress: { type: "string", description: "The address of the recipient", }, amount: { type: "string", description: "The amount of tokens to transfer", }, }, }, }; const buyOpenRouterCreditsTool: Tool = { name: "buy_openrouter_credits", description: "Buy OpenRouter credits with USDC", inputSchema: { type: "object", properties: { amountUsd: { type: "number", description: "The amount of credits to buy, in USD", }, }, }, }; export const baseMcpTools: Tool[] = [ getMorphoVaultsTool, callContractTool, getOnrampAssetsTool, onrampTool, erc20BalanceTool, erc20TransferTool, buyOpenRouterCreditsTool, ]; // biome-ignore lint/complexity/noBannedTypes: temp export const toolToHandler: Record<string, Function> = { get_morpho_vaults: getMorphoVaultsHandler, call_contract: callContractHandler, get_onramp_assets: getOnrampAssetsHandler, onramp: onrampHandler, erc20_balance: erc20BalanceHandler, erc20_transfer: erc20TransferHandler, buy_openrouter_credits: buyOpenRouterCreditsHandler, };