Overview Retrieves smart contract templates with deployment scripts for Cronos development.
Tool Name: get_contract_templateParameters Action to perform Options: "get", "search", "list", "deploy-config"
Template ID (required for "get" action)
Search query (required for "search" action)
Filter by category Options: "token", "defi", "nft", "dao", "utility"
Available Templates Tokens
NFTs
DeFi
DAO
Utility
Template ID Name Description erc20-basicBasic ERC-20 Token Standard fungible token erc20-mintableMintable ERC-20 Token with minting capability
Template ID Name Description erc721-nftERC-721 NFT Basic NFT collection erc1155-multiERC-1155 Multi-Token Multi-token standard
Template ID Name Description simple-stakingStaking Contract Token staking with rewards liquidity-poolAMM Liquidity Pool Uniswap V2-style pool
Template ID Name Description timelock-governorDAO Governor Governance with timelock
Template ID Name Description basic-multisigMulti-Signature Wallet Multi-sig wallet
Response (Get Action) { "found" : true , "action" : "get" , "templates" : [ { "id" : "erc20-basic" , "name" : "Basic ERC-20 Token" , "category" : "token" , "solidity_version" : "^0.8.20" , "use_cases" : [ "Create utility token" , "Project governance token" , "Reward points system" ], "contract_code" : "// SPDX-License-Identifier: MIT \n pragma solidity ^0.8.20; \n ..." , "deployment_script" : "const { ethers } = require('hardhat'); \n ..." , "interaction_examples" : { "read" : [ "balanceOf(address)" , "totalSupply()" , "allowance(owner, spender)" ], "write" : [ "transfer(to, amount)" , "approve(spender, amount)" ] }, "dependencies" : [ "@openzeppelin/contracts" ], "github_source" : "https://github.com/cronos-labs/contract-templates" } ], "commands" : { "deploy" : "npx hardhat run scripts/deploy.js --network cronos_testnet" , "verify" : "npx hardhat verify --network cronos_mainnet CONTRACT_ADDRESS ...ARGS" , "test" : "npx hardhat test" } }
Example Usage Get Specific Template result = use_mcp_tool( server_name = "cato" , tool_name = "get_contract_template" , arguments = { "action" : "get" , "template_id" : "erc20-basic" } )
Search Templates result = use_mcp_tool( server_name = "cato" , tool_name = "get_contract_template" , arguments = { "action" : "search" , "query" : "nft" } )
List by Category result = use_mcp_tool( server_name = "cato" , tool_name = "get_contract_template" , arguments = { "action" : "list" , "category" : "token" } )
Get Deployment Config result = use_mcp_tool( server_name = "cato" , tool_name = "get_contract_template" , arguments = { "action" : "deploy-config" } )
Template Details Each template includes:
Contract Code Production-ready Solidity code
Deployment Script Hardhat deployment script
Interaction Examples Common function calls
Dependencies Required npm packages
Template Categories 🪙 Token Templates
Basic ERC-20 Token Standard fungible token implementation with:
Fixed supply
Transfer functionality
Approval mechanism
OpenZeppelin base
Use cases: Utility tokens, governance tokens, reward systems
Mintable ERC-20 ERC-20 with minting capability:
Owner can mint new tokens
Capped or uncapped supply
Burn functionality
Access control
Use cases: Inflationary tokens, dynamic supply management🖼️ NFT Templates
ERC-721 NFT Basic NFT collection:
Unique token IDs
Metadata support
Enumerable extension
URI storage
Use cases: Art collections, gaming items, certificates
ERC-1155 Multi-Token Multi-token standard:
Fungible + non-fungible in one contract
Batch operations
Gas efficient
URI per token type
Use cases: Gaming assets, mixed collections💎 DeFi Templates
Staking Contract Token staking with rewards:
Stake/unstake tokens
Reward calculation
Time-based rewards
Emergency withdraw
Use cases: Yield farming, token locking
AMM Liquidity Pool Uniswap V2-style pool:
Add/remove liquidity
Token swaps
LP token minting
Price oracle
Use cases: DEX liquidity, token trading🏛️ DAO Templates
DAO Governor Governance with timelock:
Proposal creation
Voting mechanism
Timelock execution
Quorum requirements
Use cases: Protocol governance, community decisions🛠️ Utility Templates
Multi-Signature Wallet Multi-sig wallet:
Multiple owners
Threshold approvals
Transaction queuing
Owner management
Use cases: Treasury management, team walletsDeployment Guide Prerequisites
Install Dependencies
npm install --save-dev hardhat @nomicfoundation/hardhat-toolbox npm install @openzeppelin/contracts
Configure Hardhat
Get deployment config using deploy-config action
Set Environment Variables
export PRIVATE_KEY = "your_private_key" export CRONOSCAN_API_KEY = "your_api_key"
Deployment Commands # Deploy to testnet npx hardhat run scripts/deploy.js --network cronos_testnet # Deploy to mainnet npx hardhat run scripts/deploy.js --network cronos_mainnet # Verify contract npx hardhat verify --network cronos_mainnet CONTRACT_ADDRESS "Constructor" "Args" # Run tests npx hardhat test
Interaction Examples Read Functions // Get token balance const balance = await token . balanceOf ( address ); // Get total supply const supply = await token . totalSupply (); // Check allowance const allowance = await token . allowance ( owner , spender );
Write Functions // Transfer tokens await token . transfer ( recipient , amount ); // Approve spender await token . approve ( spender , amount ); // Transfer from await token . transferFrom ( sender , recipient , amount );
Customization Tips
Modify Parameters Adjust token name, symbol, supply, etc.
Add Features Extend with additional functionality
Security Add access controls and safety checks
Gas Optimization Optimize for lower gas costs
Best Practices Security Considerations
Always audit contracts before mainnet deployment
Use latest OpenZeppelin versions
Test thoroughly on testnet
Consider formal verification for high-value contracts
Implement emergency pause mechanisms
Development Tips
Use version control (Git)
Write comprehensive tests
Document your modifications
Keep dependencies updated
Use linters and formatters
query_cronos_sdk_docs Find SDK examples for contract interaction
decode_transaction_error Debug deployment and interaction issues
