Developing on Mantle

Check out our repository of Mantle-specific tutorials on the Mantle GitHub!
Network Details
Name
Mainnet
Testnet
RPC URL
​https://rpc.mantle.xyz​
​https://rpc.testnet.mantle.xyz​
WebSocket URL
wss://wss.mantle.xyz
wss://ws.testnet.mantle.xyz
Chain ID
5000
5001
Explorer
​​​https://explorer.mantle.xyz​
​https://explorer.testnet.mantle.xyz​
DTL service URL
​https://dtl.mantle.xyz​
​https://dtl.testnet.mantle.xyz​
Faucet
N/A
​https://faucet.testnet.mantle.xyz/​
The official Mantle RPC employs rate limiting to ensure stability during traffic spikes. If your particular use case involves calling the Mantle API frequently, you might run into issues that arise due to rate limiting. For such use cases, you can consider connecting to third party RPCs instead. You can find the list of available RPC providers here: Node RPC Providers​
Contract Addresses
The official Mantle RPC employs rate limiting to ensure stability during traffic spikes. If your particular use case involves calling the Mantle API frequently, you might run into issues that arise due to rate limiting. For such use cases, consider connecting to third-party RPCs instead. You can find the list of available RPC providers here: Node RPC Providers​
Contract Addresses
The most updated list of addresses of the contracts deployed on Ethereum and Mantle Network are available on Github. Follow the links below to navigate to the respective address repos.
​Mainnet Contracts​
​Testnet Contracts​
Please note that there are some common ERC20 contract operations currently inactive for the native $MNT token, namely:
transfer()
approve()
transferFrom()
increaseAllowance()
decreaseAllowance()
If your dApps use any of the above operations, we recommend using the wrapped token $WMNT instead. The L2 Mainnet contract address for $WMNT is 0x78c1b0c915c4faa5fffa6cabf0219da63d7f4cb8 
Connecting to Mantle Testnet
Use the info listed in the Network Details table above to connect your wallets and apps to Mantle testnet.
Test $MNT Faucets
​https://www.incepthink.com/mantle/faucet (Drips on L2)
​https://fusionx.finance/faucet (Drips on L2)
​https://faucet.testnet.mantle.xyz/ (Drips on Goerli - requires bridging)
The official Mantle Network faucet is deployed on Goerli, and so you'll need to bridge the minted $MNT if you want to use it on L2. 

Also, make sure you have sufficient test Goerli $ETH in your wallet before minting tokens. You can use the Paradigm or Alchemy faucet to acquire test $ETH on Goerli.
GitHub
Our GitHub is a good place to familiarize yourself with the Mantle tech stack and find tools and usage examples for reference that'll help you set up a local development environment, integrate our SDK, invoke node RPC endpoints, and more.
Tooling Quick Access
Find the complete list of tools that will help you develop and deploy your dApps on Mantle Network here: Resources and Tooling​
Category
Tools and Links
SDK
​Official SDK​
​Thirdweb SDK​
Tutorials
​Building an NFT Gating dApp Using Thirdweb SDK​
​Connect RainbowKit Wallet SDK With Mantle Testnet​
RPCs
Ankr: https://mantle.public-rpc.com/​
Allnodes: https://mantle.publicnode.com/​
Blast API: https://blastapi.io/public-api/mantle​
DRPC: https://mantle.drpc.org | Docs link​
Multisig Wallet
Safe{Wallet}: https://multisig.mantle.xyz/​
Data Indexing APIs
Covalent: https://www.covalenthq.com/docs/networks/mantle/​
Guide: Covalent Data Indexing API​
Unmarshal: https://docs.unmarshal.io/reference/introduction​
Cross-chain Messaging
LayerZero integration: LayerZero​
Axelar integration: Axelar​
Price Feed Oracles
Pyth: https://docs.pyth.network/documentation/pythnet-price-feeds/evm​
RedStone: https://docs.redstone.finance/docs/introduction​
SupraOracles: https://supraoracles.com/docs/overview (testnet)
Explorer
Blockscout: https://docs.blockscout.com​
Contract Verification
Contract verification is currently only possible via Mantle Explorer. We're working on the API key generation to enable other modes of verification. Stay tuned!
Explorer API docs: https://explorer.mantle.xyz/api-docs​
Mantle SDK
You can learn more about the Mantle SDK in Mantle Client SDK. The SDK provides support for the following:
Inter-network message-passing
Token deposit and withdrawal between Layer 1 (L1) and Layer 2 (L2) networks
Creation of ERC-20 tokens on L2 mapping to L1 token
Monitoring of contract calls, emit messages, etc.
By combining SDK modules, Mantle network can be easily connected to wallets, exchanges, and other application scenarios. Use the link below to navigate to our SDK docs.
@mantleio/sdk
Thirdweb SDK
The thirdweb web3 development framework supports deploying apps to Mantle Network. Learn more about how to use the thirdweb CLI to deploy contracts, and the thirdweb SDK to build your applications connecting to Mantle Network on the Thirdweb SDK page.
Using Mantle Node API
dApps need access to nodes to fetch block data and send transactions. Mantle network supports Ethereum's JSON-RPC API implementation with some added custom methods and can be connected to using HTTPS and WebSocket. Find out more on the Mantle Node API page.
Tutorials
Type
Links
Basics
​Estimating Transaction Fees​
​Viewing Transactions between Layers​
​Migrating $BIT to $MNT on Goerli​
Smart Contracts
​Deploying a Smart Contract​
Bridging
​Bridging $MNT using Mantle SDK​
​Bridging Existing ERC20 Tokens Using Mantle SDK​
​Bridging $ETH Using Mantle SDK​
​Bridging Standard ERC20 Tokens Using Standard Bridge​
​Bridging Custom ERC20 Tokens Using Standard Bridge​
Inter-layer Message Passing
​Communication Between Contracts on L1 and L2​
Graph Service
​Deploying and Using Subgraphs​
You can find the tutorials Github repo here: https://mantlenetworkio.github.io/mantle-tutorial/​
Graph Node
Text
Testnet
Mainnet
Deploy endpoint
​https://graph.testnet.mantle.xyz/deploy​
in works
Query subgraph using name
​https://graph.testnet.mantle.xyz/subgraphs/name/<name>​
in works
Query subgraph using ID
​https://graph.testnet.mantle.xyz/subgraphs/id/<ID>​
in works
Check subgraph status
​https://graph.testnet.mantle.xyz/graphql​
in works
IPFS server
​https://ipfs.testnet.mantle.xyz/​
in works
Network parameter
testnet
in works
Opcode Differences Between EVM and Mantle VM
0x40 range - ‘BASEFEE’
Introduced in EIP1559​
EVM
Mantle VM
// 0x40 range - block operations. 
​
const ( 
  BLOCKHASH  OpCode = 0x40 
  COINBASE  OpCode = 0x41 
  TIMESTAMP  OpCode = 0x42 
  NUMBER  OpCode = 0x43 
  DIFFICULTY  OpCode = 0x44 
  RANDOM  OpCode = 0x44 // Same as DIFFICULTY 
  GASLIMIT  OpCode = 0x45 
  CHAINID  OpCode = 0x46 
  SELFBALANCE  OpCode = 0x47 
  BASEFEE  OpCode = 0x48 
)
const ( 
  BLOCKHASH OpCode = 0x40 + iota
  COINBASE 
  TIMESTAMP 
  NUMBER 
  DIFFICULTY 
  GASLIMIT 
  CHAINID = 0x46 
  SELFBALANCE = 0x47
​
  L1BLOCKNUMBER = 0x4B 
)
0x50 range - ‘PUSH0’
Introduced in EIP3855​
EVM
Mantle VM
// 0x50 range - 'storage' and execution.
const ( 
  POP  OpCode = 0x50 
  MLOAD  OpCode = 0x51 
  MSTORE  OpCode = 0x52 
  MSTORE8  OpCode = 0x53 
  SLOAD  OpCode = 0x54 
  SSTORE  OpCode = 0x55 
  JUMP  OpCode = 0x56 
  JUMPI  OpCode = 0x57 
  PC  OpCode = 0x58 
  MSIZE  OpCode = 0x59
  GAS  OpCode = 0x5a 
  JUMPDEST  OpCode = 0x5b 
  PUSH0  OpCode = 0x5f 
)
// 0x50 range - 'storage' and execution. const ( 
  POP  OpCode = 0x50 + iota 
  MLOAD 
  MSTORE 
  MSTORE8 
  SLOAD 
  SSTORE 
  JUMP 
  JUMPI 
  PC 
  MSIZE 
  GAS 
  JUMPDEST 
)
0xf0 range - ‘INVALID’
Introduced in EIP141​
EVM
Mantle VM
// 0xf0 range - closures. 
const ( 
  CREATE  OpCode = 0xf0 
  CALL  OpCode = 0xf1 
  CALLCODE  OpCode = 0xf2 
  RETURN  OpCode = 0xf3 
  DELEGATECALL  OpCode = 0xf4
  CREATE2  OpCode = 0xf5
​
  STATICCALL  OpCode = 0xfa 
  REVERT  OpCode = 0xfd 
  INVALID  OpCode = 0xfe 
  SELFDESTRUCT  OpCode = 0xff 
)
// 0xf0 range - closures. 
const ( 
  CREATE  OpCode = 0xf0 + iota 
  CALL 
  CALLCODE 
  RETURN 
  DELEGATECALL 
  CREATE2 
  STATICCALL = 0xfa
​
  REVERT = 0xfd 
  SELFDESTRUCT = 0xff 
)
Troubleshooting
Follow the link below to see solutions and fixes for issues that hackers commonly encounter.
Troubleshooting
Support
Channel
Link
Discord
​https://discord.com/invite/0xMantle​
Telegram
​https://t.me/mantledevs​
If you’re a partner - Please get in touch with us by tagging any relevant team members in "Mantle <> your org’s" telegram chat
If you’re a hacker building on Mantle Network - Please reach out to us via our official Discord channel or Mantle Devs telegram channel
If you’re a developer just trying out the network - Please reach out to us via Discord in the #dev-discussions channel, or raise a ticket for fast response

Name	Mainnet	Testnet
RPC URL	https://rpc.mantle.xyz	https://rpc.testnet.mantle.xyz
WebSocket URL	wss://wss.mantle.xyz	wss://ws.testnet.mantle.xyz
Chain ID	5000	5001
Explorer	https://explorer.mantle.xyz	https://explorer.testnet.mantle.xyz
DTL service URL	https://dtl.mantle.xyz	https://dtl.testnet.mantle.xyz
Faucet	N/A	https://faucet.testnet.mantle.xyz/

Category	Tools and Links
SDK	Official SDK Thirdweb SDK Tutorials Building an NFT Gating dApp Using Thirdweb SDK Connect RainbowKit Wallet SDK With Mantle Testnet
RPCs	Ankr: https://mantle.public-rpc.com/ Allnodes: https://mantle.publicnode.com/ Blast API: https://blastapi.io/public-api/mantle DRPC: https://mantle.drpc.org \| Docs link
Multisig Wallet	Safe{Wallet}: https://multisig.mantle.xyz/
Data Indexing APIs	Covalent: https://www.covalenthq.com/docs/networks/mantle/ Guide: Covalent Data Indexing API Unmarshal: https://docs.unmarshal.io/reference/introduction
Cross-chain Messaging	LayerZero integration: LayerZero Axelar integration: Axelar
Price Feed Oracles	Pyth: https://docs.pyth.network/documentation/pythnet-price-feeds/evm RedStone: https://docs.redstone.finance/docs/introduction SupraOracles: https://supraoracles.com/docs/overview (testnet)
Explorer	Blockscout: https://docs.blockscout.com

Type	Links
Basics	Estimating Transaction Fees Viewing Transactions between Layers Migrating $BIT to $MNT on Goerli
Smart Contracts	Deploying a Smart Contract
Bridging	Bridging $MNT using Mantle SDK Bridging Existing ERC20 Tokens Using Mantle SDK Bridging $ETH Using Mantle SDK Bridging Standard ERC20 Tokens Using Standard Bridge Bridging Custom ERC20 Tokens Using Standard Bridge
Inter-layer Message Passing	Communication Between Contracts on L1 and L2
Graph Service	Deploying and Using Subgraphs

Text	Testnet	Mainnet
Deploy endpoint	https://graph.testnet.mantle.xyz/deploy	in works
Query subgraph using name	https://graph.testnet.mantle.xyz/subgraphs/name/<name>	in works
Query subgraph using ID	https://graph.testnet.mantle.xyz/subgraphs/id/<ID>	in works
Check subgraph status	https://graph.testnet.mantle.xyz/graphql	in works
IPFS server	https://ipfs.testnet.mantle.xyz/	in works
Network parameter	`testnet`	in works

EVM	Mantle VM
// 0x40 range - block operations. const ( BLOCKHASH OpCode = 0x40 COINBASE OpCode = 0x41 TIMESTAMP OpCode = 0x42 NUMBER OpCode = 0x43 DIFFICULTY OpCode = 0x44 RANDOM OpCode = 0x44 // Same as DIFFICULTY GASLIMIT OpCode = 0x45 CHAINID OpCode = 0x46 SELFBALANCE OpCode = 0x47 BASEFEE OpCode = 0x48 )	const ( BLOCKHASH OpCode = 0x40 + iota COINBASE TIMESTAMP NUMBER DIFFICULTY GASLIMIT CHAINID = 0x46 SELFBALANCE = 0x47 L1BLOCKNUMBER = 0x4B )

EVM	Mantle VM
// 0x50 range - 'storage' and execution. const ( POP OpCode = 0x50 MLOAD OpCode = 0x51 MSTORE OpCode = 0x52 MSTORE8 OpCode = 0x53 SLOAD OpCode = 0x54 SSTORE OpCode = 0x55 JUMP OpCode = 0x56 JUMPI OpCode = 0x57 PC OpCode = 0x58 MSIZE OpCode = 0x59 GAS OpCode = 0x5a JUMPDEST OpCode = 0x5b PUSH0 OpCode = 0x5f )	// 0x50 range - 'storage' and execution. const ( POP OpCode = 0x50 + iota MLOAD MSTORE MSTORE8 SLOAD SSTORE JUMP JUMPI PC MSIZE GAS JUMPDEST )

EVM	Mantle VM
// 0xf0 range - closures. const ( CREATE OpCode = 0xf0 CALL OpCode = 0xf1 CALLCODE OpCode = 0xf2 RETURN OpCode = 0xf3 DELEGATECALL OpCode = 0xf4 CREATE2 OpCode = 0xf5 STATICCALL OpCode = 0xfa REVERT OpCode = 0xfd INVALID OpCode = 0xfe SELFDESTRUCT OpCode = 0xff )	// 0xf0 range - closures. const ( CREATE OpCode = 0xf0 + iota CALL CALLCODE RETURN DELEGATECALL CREATE2 STATICCALL = 0xfa REVERT = 0xfd SELFDESTRUCT = 0xff )

Channel	Link
Discord	https://discord.com/invite/0xMantle
Telegram	https://t.me/mantledevs

Last modified 7d ago

Developing on Mantle

Network Details

Contract Addresses

Contract Addresses

Connecting to Mantle Testnet

Test $MNT Faucets

GitHub

Tooling Quick Access

Contract Verification

Mantle SDK

Thirdweb SDK

Using Mantle Node API

Tutorials

Graph Node

Opcode Differences Between EVM and Mantle VM

0x40 range - ‘`BASEFEE`’

0x50 range - ‘`PUSH0`’

0xf0 range - ‘`INVALID`’

Troubleshooting

Support