Tenzro Layerzero

Official21 tools

by tenzro

LayerZero V2 tools over MCP: message quotes, OFT transfers, Stargate bridging, DVN lookups.

Captured live from the server via tools/list.

lz_broadcast_signed_tx

Broadcast a pre-signed Ethereum transaction via eth_sendRawTransaction on the source chain RPC. Use this as the canonical broadcast path for calldata produced by lz_send_message (EndpointV2.send), lz_oft_send (OFT.send), lz_stargate_send (StargatePoolNative.sendToken), and lz_transfer_build (Value Transfer API steps). Returns the transaction hash on success. The caller must construct calldata, sign locally with msg.value = nativeFee from the corresponding quote tool, then submit the RLP-encoded signed tx hex here.

Parameters2

src_chain	string	required	Source chain name (e.g. 'ethereum', 'arbitrum', 'base', 'optimism', 'polygon', 'avalanche', 'bsc')
signed_tx_hex	string	required	Pre-signed Ethereum transaction in hex format (the 0x-prefixed RLP-encoded signed transaction). Construct calldata via lz_send_message / lz_oft_send / lz_stargate_send / lz_transfer_build, sign locally with msg.value = nativeFee, then submit here.

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'ethereum', 'arbitrum', 'base', 'optimism', 'polygon', 'avalanche', 'bsc')",
      "type": "string"
    },
    "signed_tx_hex": {
      "description": "Pre-signed Ethereum transaction in hex format (the 0x-prefixed RLP-encoded signed transaction). Construct calldata via lz_send_message / lz_oft_send / lz_stargate_send / lz_transfer_build, sign locally with msg.value = nativeFee, then submit here.",
      "type": "string"
    }
  },
  "required": [
    "src_chain",
    "signed_tx_hex"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzBroadcastSignedTxParams"
}

lz_encode_options

Encode LayerZero TYPE_3 options bytes for use with EndpointV2.quote() and EndpointV2.send(). TYPE_3 (version tag 0x0003) is the current standard options format for LayerZero V2. Builds binary options with executor worker ID 0x01 and option type 1 (lzReceive) with configurable gas limit and native token drop amount. Returns the hex-encoded options bytes.

Parameters2

gas_limit	integer \| null	optional	Gas limit for lzReceive execution on destination (default: 200000)
native_drop	integer \| null	optional	Native token amount to drop on destination in wei (default: 0)

Raw schema

{
  "type": "object",
  "properties": {
    "gas_limit": {
      "description": "Gas limit for lzReceive execution on destination (default: 200000)",
      "type": [
        "integer",
        "null"
      ],
      "format": "uint128",
      "minimum": 0
    },
    "native_drop": {
      "description": "Native token amount to drop on destination in wei (default: 0)",
      "type": [
        "integer",
        "null"
      ],
      "format": "uint128",
      "minimum": 0
    }
  },
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzEncodeOptionsParams"
}

lz_get_chain_rpc

Get the public RPC URL for a supported chain by name. These RPC URLs are used by the server for eth_call queries against EndpointV2.

Parameters1

chain_name

string

required

Chain name to get RPC URL for (e.g. 'ethereum', 'arbitrum', 'base')

Raw schema

{
  "type": "object",
  "properties": {
    "chain_name": {
      "description": "Chain name to get RPC URL for (e.g. 'ethereum', 'arbitrum', 'base')",
      "type": "string"
    }
  },
  "required": [
    "chain_name"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzGetChainRpcParams"
}

lz_get_deployments

Get LayerZero V2 deployment addresses across all supported chains. Returns EndpointV2, SendLib, ReceiveLib, DVN, and Executor addresses from the LayerZero Metadata API.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzGetDeploymentsParams"
}

lz_get_message

Get a LayerZero message by its GUID (Global Unique Identifier). The GUID is returned by EndpointV2.send() and can also be found in the Scan API message tracking response.

Parameters1

guid

string

required

LayerZero message GUID (hex, with or without 0x prefix)

Raw schema

{
  "type": "object",
  "properties": {
    "guid": {
      "description": "LayerZero message GUID (hex, with or without 0x prefix)",
      "type": "string"
    }
  },
  "required": [
    "guid"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzGetMessageParams"
}

lz_get_messages_by_address

Get LayerZero messages for a specific wallet address. Queries the Scan API for all messages sent or received by the given address. Returns message details including status, source/destination chains, and timestamps.

Parameters2

address	string	required	Wallet address to get LayerZero messages for (hex, with or without 0x prefix)
limit	integer \| null	optional	Maximum number of messages to return (default: 10)

Raw schema

{
  "type": "object",
  "properties": {
    "address": {
      "description": "Wallet address to get LayerZero messages for (hex, with or without 0x prefix)",
      "type": "string"
    },
    "limit": {
      "description": "Maximum number of messages to return (default: 10)",
      "type": [
        "integer",
        "null"
      ],
      "format": "uint32",
      "minimum": 0
    }
  },
  "required": [
    "address"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzGetMessagesByAddressParams"
}

lz_list_chains

List all 16 chains supported by this LayerZero MCP server with their Endpoint IDs (EIDs). Includes Ethereum, Arbitrum, Optimism, Polygon, BSC, Avalanche, Base, Solana, zkSync, Sei, Sonic, Berachain, Story, Monad, MegaETH, and Tron. EIDs are used in EndpointV2.quote() and EndpointV2.send() to identify destination chains.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzListChainsParams"
}

lz_list_dvns

List all Decentralized Verifier Networks (DVNs) registered in the LayerZero V2 protocol. DVNs verify cross-chain messages by attesting to source chain state on the destination chain. Returns DVN names, addresses, supported chains, and configuration details.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzListDvnsParams"
}

lz_oft_list

List all available OFT (Omnichain Fungible Token) deployments registered in the LayerZero Metadata API. Returns token symbols, contract addresses, supported chains, and deployment details.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzOftListParams"
}

lz_oft_quote

Quote an OFT (Omnichain Fungible Token) transfer via the LayerZero Metadata API. Returns estimated fees, exchange rates, and transfer details for bridging tokens between chains using LayerZero's OFT standard.

Parameters4

src_chain	string	required	Source chain name (e.g. 'ethereum')
dst_chain	string	required	Destination chain name (e.g. 'arbitrum')
amount	string	required	Amount to transfer (in base units as string)
token_symbol	string	required	Token symbol (e.g. 'USDC', 'USDT', 'ETH')

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'ethereum')",
      "type": "string"
    },
    "dst_chain": {
      "description": "Destination chain name (e.g. 'arbitrum')",
      "type": "string"
    },
    "amount": {
      "description": "Amount to transfer (in base units as string)",
      "type": "string"
    },
    "token_symbol": {
      "description": "Token symbol (e.g. 'USDC', 'USDT', 'ETH')",
      "type": "string"
    }
  },
  "required": [
    "src_chain",
    "dst_chain",
    "amount",
    "token_symbol"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzOftQuoteParams"
}

lz_oft_send

Build transaction calldata for an OFT (Omnichain Fungible Token) send() call on any OFT contract. OFT V2 uses uint64 amountSD (shared decimals) instead of uint256 amountLD. Returns the hex-encoded calldata for OFT.send(SendParam, MessagingFee, refundAddress). The caller must first call lz_quote_fee or lz_oft_quote to get the messaging fee, then sign and broadcast this transaction with msg.value = nativeFee.

Parameters7

src_chain	string	required	Source chain name (e.g. 'ethereum', 'arbitrum', 'base')
dst_chain	string	required	Destination chain name (e.g. 'arbitrum', 'base', 'solana')
oft_address	string	required	OFT contract address on the source chain (hex, 20 bytes)
recipient	string	required	Recipient address (hex, 20 bytes for EVM — will be left-padded to bytes32)
amount	string	required	Amount to send in shared decimals (amountSD, uint64 — OFT V2 uses shared decimals, not local decimals)
min_amount	string \| null	optional	Minimum amount to receive in shared decimals (minAmountSD, uint64 — default: 90% of amount)
gas_limit	integer \| null	optional	Gas limit for lzReceive on destination (default: 200000)

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'ethereum', 'arbitrum', 'base')",
      "type": "string"
    },
    "dst_chain": {
      "description": "Destination chain name (e.g. 'arbitrum', 'base', 'solana')",
      "type": "string"
    },
    "oft_address": {
      "description": "OFT contract address on the source chain (hex, 20 bytes)",
      "type": "string"
    },
    "recipient": {
      "description": "Recipient address (hex, 20 bytes for EVM — will be left-padded to bytes32)",
      "type": "string"
    },
    "amount": {
      "description": "Amount to send in shared decimals (amountSD, uint64 — OFT V2 uses shared decimals, not local decimals)",
      "type": "string"
    },
    "min_amount": {
      "description": "Minimum amount to receive in shared decimals (minAmountSD, uint64 — default: 90% of amount)",
      "type": [
        "string",
        "null"
      ]
    },
    "gas_limit": {
      "description": "Gas limit for lzReceive on destination (default: 200000)",
      "type": [
        "integer",
        "null"
      ],
      "format": "uint128",
      "minimum": 0
    }
  },
  "required": [
    "src_chain",
    "dst_chain",
    "oft_address",
    "recipient",
    "amount"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzOftSendParams"
}

lz_quote_fee

Estimate cross-chain messaging fee via LayerZero EndpointV2.quote() eth_call. Returns the native fee and LZ token fee required to send a message from the source chain to the destination endpoint. Uses the on-chain EndpointV2 contract at 0x1a44076050125825900e736c501f859c50fE728c. Selector: 0xdb9d28c6.

Parameters5

src_chain	string	required	Source chain name (e.g. 'ethereum', 'arbitrum', 'base')
dst_eid	integer	required	Destination chain LayerZero Endpoint ID (e.g. 30110 for Arbitrum)
message_hex	string	required	Hex-encoded message payload (with or without 0x prefix)
options_hex	string \| null	optional	Hex-encoded LayerZero V3 options bytes (default: lzReceive with 200000 gas if omitted)
sender_hex	string	required	Hex-encoded sender address (20 bytes, with or without 0x prefix)

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'ethereum', 'arbitrum', 'base')",
      "type": "string"
    },
    "dst_eid": {
      "description": "Destination chain LayerZero Endpoint ID (e.g. 30110 for Arbitrum)",
      "type": "integer",
      "format": "uint32",
      "minimum": 0
    },
    "message_hex": {
      "description": "Hex-encoded message payload (with or without 0x prefix)",
      "type": "string"
    },
    "options_hex": {
      "description": "Hex-encoded LayerZero V3 options bytes (default: lzReceive with 200000 gas if omitted)",
      "type": [
        "string",
        "null"
      ]
    },
    "sender_hex": {
      "description": "Hex-encoded sender address (20 bytes, with or without 0x prefix)",
      "type": "string"
    }
  },
  "required": [
    "src_chain",
    "dst_eid",
    "message_hex",
    "sender_hex"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzQuoteFeeParams"
}

lz_send_message

Build transaction calldata for EndpointV2.send() to dispatch a cross-chain message via LayerZero V2. Returns the hex-encoded calldata that should be submitted as a transaction to the EndpointV2 contract on the source chain. The caller must sign and broadcast the transaction with msg.value set to the nativeFee from lz_quote_fee. Selector: 0x5e280f11.

Parameters5

src_chain	string	required	Source chain name (e.g. 'ethereum', 'arbitrum', 'base')
dst_eid	integer	required	Destination chain LayerZero Endpoint ID
receiver	string	required	Hex-encoded receiver address as bytes32 (left-padded to 32 bytes)
message_hex	string	required	Hex-encoded message payload
options_hex	string \| null	optional	Hex-encoded LayerZero V3 options bytes (default: lzReceive with 200000 gas if omitted)

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'ethereum', 'arbitrum', 'base')",
      "type": "string"
    },
    "dst_eid": {
      "description": "Destination chain LayerZero Endpoint ID",
      "type": "integer",
      "format": "uint32",
      "minimum": 0
    },
    "receiver": {
      "description": "Hex-encoded receiver address as bytes32 (left-padded to 32 bytes)",
      "type": "string"
    },
    "message_hex": {
      "description": "Hex-encoded message payload",
      "type": "string"
    },
    "options_hex": {
      "description": "Hex-encoded LayerZero V3 options bytes (default: lzReceive with 200000 gas if omitted)",
      "type": [
        "string",
        "null"
      ]
    }
  },
  "required": [
    "src_chain",
    "dst_eid",
    "receiver",
    "message_hex"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzSendMessageParams"
}

lz_stargate_quote

Quote a Stargate V2 native bridge transfer fee. Calls quoteSend() on the StargatePoolNative contract (ETH, USDC, or USDT) to get the exact LayerZero messaging fee for bridging between supported EVM chains. Returns the fee in wei and the minimum amount received after slippage. Supported tokens: ETH (Ethereum/Optimism/Arbitrum/Base), USDC (6 chains), USDT (6 chains).

Parameters5

src_chain	string	required	Source chain name (e.g. 'optimism', 'ethereum', 'base', 'arbitrum')
dst_chain	string	required	Destination chain name (e.g. 'base', 'ethereum', 'arbitrum')
token	string	required	Token symbol: 'ETH', 'USDC', or 'USDT'
amount	string	required	Amount to bridge in base units (wei for ETH, micro-units for USDC/USDT)
wallet_address	string	required	Sender/recipient wallet address (hex, 20 bytes)

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'optimism', 'ethereum', 'base', 'arbitrum')",
      "type": "string"
    },
    "dst_chain": {
      "description": "Destination chain name (e.g. 'base', 'ethereum', 'arbitrum')",
      "type": "string"
    },
    "token": {
      "description": "Token symbol: 'ETH', 'USDC', or 'USDT'",
      "type": "string"
    },
    "amount": {
      "description": "Amount to bridge in base units (wei for ETH, micro-units for USDC/USDT)",
      "type": "string"
    },
    "wallet_address": {
      "description": "Sender/recipient wallet address (hex, 20 bytes)",
      "type": "string"
    }
  },
  "required": [
    "src_chain",
    "dst_chain",
    "token",
    "amount",
    "wallet_address"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzStargateQuoteParams"
}

lz_stargate_send

Build transaction calldata for a Stargate V2 sendToken() bridge transfer. Returns hex-encoded calldata, the target contract address, and the msg.value to include. The caller must sign and broadcast the transaction. For native ETH, msg.value = nativeFee + bridgeAmount. For ERC-20 tokens (USDC/USDT), approve the pool contract first, then msg.value = nativeFee only. Supported: ETH (4 chains), USDC (6 chains), USDT (6 chains).

Parameters6

src_chain	string	required	Source chain name (e.g. 'optimism', 'ethereum', 'base', 'arbitrum')
dst_chain	string	required	Destination chain name (e.g. 'base', 'ethereum', 'arbitrum')
token	string	required	Token symbol: 'ETH', 'USDC', or 'USDT'
amount	string	required	Amount to bridge in base units (wei for ETH, micro-units for USDC/USDT)
wallet_address	string	required	Sender/recipient wallet address (hex, 20 bytes)
slippage_bps	integer \| null	optional	Slippage tolerance in basis points (default: 50 = 0.5%)

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain name (e.g. 'optimism', 'ethereum', 'base', 'arbitrum')",
      "type": "string"
    },
    "dst_chain": {
      "description": "Destination chain name (e.g. 'base', 'ethereum', 'arbitrum')",
      "type": "string"
    },
    "token": {
      "description": "Token symbol: 'ETH', 'USDC', or 'USDT'",
      "type": "string"
    },
    "amount": {
      "description": "Amount to bridge in base units (wei for ETH, micro-units for USDC/USDT)",
      "type": "string"
    },
    "wallet_address": {
      "description": "Sender/recipient wallet address (hex, 20 bytes)",
      "type": "string"
    },
    "slippage_bps": {
      "description": "Slippage tolerance in basis points (default: 50 = 0.5%)",
      "type": [
        "integer",
        "null"
      ],
      "format": "uint32",
      "minimum": 0
    }
  },
  "required": [
    "src_chain",
    "dst_chain",
    "token",
    "amount",
    "wallet_address"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzStargateSendParams"
}

lz_track_message

Track a cross-chain LayerZero message by the source transaction hash. Queries the LayerZero Scan API for message status: INFLIGHT, CONFIRMING, DELIVERED, FAILED, or BLOCKED. Returns the full message details including source/destination chains, GUID, and current status.

Parameters1

tx_hash

string

required

Transaction hash to track LayerZero message for (with or without 0x prefix)

Raw schema

{
  "type": "object",
  "properties": {
    "tx_hash": {
      "description": "Transaction hash to track LayerZero message for (with or without 0x prefix)",
      "type": "string"
    }
  },
  "required": [
    "tx_hash"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTrackMessageParams"
}

lz_transfer_build

Build signable transaction steps from a Value Transfer API quote. Takes a quoteId from lz_transfer_quote and returns pre-built transaction calldata (to, data, value) that the caller can sign and broadcast. Handles approval and bridge steps automatically.

Parameters1

quote_id

string

required

Quote ID returned from lz_transfer_quote

Raw schema

{
  "type": "object",
  "properties": {
    "quote_id": {
      "description": "Quote ID returned from lz_transfer_quote",
      "type": "string"
    }
  },
  "required": [
    "quote_id"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTransferBuildParams"
}

lz_transfer_chains

List all chains supported by the LayerZero Value Transfer API. Returns 130+ chains including Solana, all EVM L1s and L2s, and their chain keys for use in lz_transfer_quote.

Parameters

No parameters.

Raw schema

{
  "type": "object",
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTransferChainsParams"
}

lz_transfer_quote

Get a cross-chain transfer quote from the LayerZero Value Transfer API. This is the newest LayerZero API (replaces deprecated Stargate REST API) supporting 130+ chains including Solana. Returns quotes with fees, estimated times, and a quote ID for building transaction steps. Use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE as the token address for native ETH.

Parameters7

src_chain	string	required	Source chain key (e.g. 'optimism', 'ethereum', 'base', 'solana')
dst_chain	string	required	Destination chain key (e.g. 'base', 'solana', 'ethereum')
src_token	string	required	Source token address (use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native ETH, or contract address for ERC-20)
dst_token	string	required	Destination token address (use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native ETH)
amount	string	required	Amount to transfer in base units (wei for ETH, smallest unit for tokens)
src_address	string	required	Sender wallet address on the source chain
dst_address	string	required	Recipient wallet address on the destination chain

Raw schema

{
  "type": "object",
  "properties": {
    "src_chain": {
      "description": "Source chain key (e.g. 'optimism', 'ethereum', 'base', 'solana')",
      "type": "string"
    },
    "dst_chain": {
      "description": "Destination chain key (e.g. 'base', 'solana', 'ethereum')",
      "type": "string"
    },
    "src_token": {
      "description": "Source token address (use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native ETH, or contract address for ERC-20)",
      "type": "string"
    },
    "dst_token": {
      "description": "Destination token address (use 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE for native ETH)",
      "type": "string"
    },
    "amount": {
      "description": "Amount to transfer in base units (wei for ETH, smallest unit for tokens)",
      "type": "string"
    },
    "src_address": {
      "description": "Sender wallet address on the source chain",
      "type": "string"
    },
    "dst_address": {
      "description": "Recipient wallet address on the destination chain",
      "type": "string"
    }
  },
  "required": [
    "src_chain",
    "dst_chain",
    "src_token",
    "dst_token",
    "amount",
    "src_address",
    "dst_address"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTransferQuoteParams"
}

lz_transfer_status

Check the status of a Value Transfer API transfer by its quote ID. Returns current transfer status, source/destination transaction hashes, and delivery progress.

Parameters1

quote_id

string

required

Quote ID or transfer ID to check status for

Raw schema

{
  "type": "object",
  "properties": {
    "quote_id": {
      "description": "Quote ID or transfer ID to check status for",
      "type": "string"
    }
  },
  "required": [
    "quote_id"
  ],
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTransferStatusParams"
}

lz_transfer_tokens

List tokens available for cross-chain transfer via the LayerZero Value Transfer API. Optionally filter by chain. Returns token addresses, symbols, decimals, and which chains they're available on.

Parameters1

chain

string | null

optional

Filter tokens by chain key (optional, e.g. 'optimism', 'solana')

Raw schema

{
  "type": "object",
  "properties": {
    "chain": {
      "description": "Filter tokens by chain key (optional, e.g. 'optimism', 'solana')",
      "type": [
        "string",
        "null"
      ]
    }
  },
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "title": "LzTransferTokensParams"
}

Install

Tools (21)

lz_broadcast_signed_txlz_encode_optionslz_get_chain_rpclz_get_deploymentslz_get_messagelz_get_messages_by_addresslz_list_chainslz_list_dvns

Remote endpoint

Streamable HTTP

Hosted server - connect over the network, no local install.

url

https://layerzero-mcp.tenzro.xyz/mcp

Add to VS Code Add to Cursor

claude_desktop_config.json

json

{
  "mcpServers": {
    "tenzro-layerzero": {
      "command": "npx",
      "args": [
        "-y",
        "mcp-remote",
        "https://layerzero-mcp.tenzro.xyz/mcp"
      ]
    }
  }
}

Desktop config is stdio-only; this bridges via mcp-remote. Native remote: Settings > Connectors.