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LayerHop

by layerhop.com · remote · local (npm) · no sign-in to list tools · v0.5.0 · published by com.layerhop

Best-price cross-chain swap quotes across 70 chains (EVM + Solana). Holds no keys, never signs.

Deletes · 1Final · 2Changes · 5

15 tools: 1 can delete or cancel things, 2 do something that can't be undone, 5 change things and 7 only read.

Scanned Oct 21, 2026

1 check matched something in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http layerhop https://mcp.layerhop.com/mcp

Findings

Matches of fixed checks, with the text they matched.

1 warn
  • The server marks "get_swap_link" read-only (readOnlyHint: true), and its own name, description or input give the class "irreversible".

    Matched text

    annotations: {"readOnlyHint":true,"openWorldHint":false}; The name "get_swap_link" says "get": a word for reading.

    What this check looks for

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

15 tools

Deletes or cancels 1Claude Code: deny
  • disable_deposit_addressDisable a deposit address: LayerHop stops tracking it (no more orders or webhooks for it).No findings

    Why it is in this group

    • The name "disable_deposit_address" says "disable": a word for a change.
    • The description says "Cannot be undone".
    • The server marks it destructive (destructiveHint: true).
    Description, as the server wrote it
    Disable a deposit address: LayerHop stops tracking it (no more orders or webhooks for it). The provider may still process funds sent to it later, so the user must stop using it. Cannot be undone. Confirm with the user first. Needs a LayerHop API key.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: true
    • idempotentHint: true
    • openWorldHint: true
Can't be undone 2Claude Code: ask
  • create_deposit_addressCreate an address the user sends tokens to; every deposit is swapped/bridged and delivered as toToken on toChain to recipient.No findings

    Why it is in this group

    • The name "create_deposit_address" says "create": a word for a change.
    • The input addresses people (input.recipient): what it sends cannot be taken back.
    Description, as the server wrote it
    Create an address the user sends tokens to; every deposit is swapped/bridged and delivered as toToken on toChain to recipient. No wallet connection or signing needed. Non-custodial: the address belongs to the liquidity provider (Relay), LayerHop never holds funds. Tell the user: send ONLY srcToken on srcChain to the address (other tokens or chains may be lost for good), at least $1 worth; refundTo must be the user's own address on srcChain, never an exchange (CEX) deposit address. Needs a LayerHop API key; test keys (lh_test_) give a fake sandbox address that must never receive real funds. The LayerHop MCP server holds no private keys and never signs or broadcasts transactions.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
Changes things 5Claude Code: ask
  • build_transactionTurn a quoteId from get_quote into the UNSIGNED transaction the user's own wallet must sign: EVM {chainId, to, data, value in wei, optional ERC-20 approval to send first} or Solana…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Turn a quoteId from get_quote into the UNSIGNED transaction the user's own wallet must sign: EVM {chainId, to, data, value in wei, optional ERC-20 approval to send first} or Solana {serializedTx base64}. Includes plain-language signing steps. The LayerHop MCP server holds no private keys and never signs or broadcasts transactions. Only use this when the user has their own signer and explicitly wants raw transaction data, after they confirmed the quote; otherwise give them the swap link.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • refresh_deposit_addressAsk LayerHop to check a deposit address for new deposits right away (instead of waiting for the next scheduled check).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Ask LayerHop to check a deposit address for new deposits right away (instead of waiting for the next scheduled check). Call it when the user says they sent funds, then call get_deposit_address after ~15-30 s. Needs a LayerHop API key.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • report_submittedTell LayerHop that the user's wallet broadcast the transaction for a quoteId, so the order is tracked (status, webhooks).No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    Tell LayerHop that the user's wallet broadcast the transaction for a quoteId, so the order is tracked (status, webhooks). Call this once after broadcasting, with the EVM tx hash (0x + 64 hex) or Solana signature. Idempotent. Does not sign or send anything.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: true
  • simulate_depositTEST MODE ONLY (lh_test_ key and a test deposit address): record a fake deposit so the integration can be tested end to end; it becomes a test order that settles with webhooks.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    Description, as the server wrote it
    TEST MODE ONLY (lh_test_ key and a test deposit address): record a fake deposit so the integration can be tested end to end; it becomes a test order that settles with webhooks. The amount decides the outcome: base units ending in 4001 -> refunded, 4002 -> failed, anything else -> filled. Moves no real funds. Fails with a live key.

    Annotations the server declares

    • readOnlyHint: false
    • destructiveHint: false
    • idempotentHint: false
    • openWorldHint: true
  • simulate_transactionBuild the transaction for a quoteId and dry-run it on-chain (EVM eth_call + gas estimate from the sender; Solana simulateTransaction) without sending anything or recording an order…No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Build the transaction for a quoteId and dry-run it on-chain (EVM eth_call + gas estimate from the sender; Solana simulateTransaction) without sending anything or recording an order. Reports whether it would succeed, gas / compute units, whether an ERC-20 approval is still needed, and the error if it would fail. Read-only: The LayerHop MCP server holds no private keys and never signs or broadcasts transactions.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
Only reads 7Claude Code: allow
  • get_deposit_addressGet one deposit address with its 20 most recent deposits (orders, quoteId starting with dep_): amount deposited and delivered, status (submitted, pending, filled, refunded, failed)…No findings

    Why it is in this group

    • The name "get_deposit_address" says "get": a word for reading.
    Description, as the server wrote it
    Get one deposit address with its 20 most recent deposits (orders, quoteId starting with dep_): amount deposited and delivered, status (submitted, pending, filled, refunded, failed) and tx hashes. Tell the user: send ONLY srcToken on srcChain to the address (other tokens or chains may be lost for good), at least $1 worth; refundTo must be the user's own address on srcChain, never an exchange (CEX) deposit address. Needs a LayerHop API key; test keys (lh_test_) give a fake sandbox address that must never receive real funds. Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • get_order_statusCheck the status of a swap or bridge after the source transaction was sent: pending, filled (funds delivered), refunded, failed, or unknown (some same-chain providers; check the tx…No findings

    Why it is in this group

    • The name "get_order_status" says "get": a word for reading.
    Description, as the server wrote it
    Check the status of a swap or bridge after the source transaction was sent: pending, filled (funds delivered), refunded, failed, or unknown (some same-chain providers; check the tx on an explorer). Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • get_quoteGet the best price to swap or bridge tokens, within one chain or across chains (EVM <-> Solana).No findings

    Why it is in this group

    • The name "get_quote" says "get": a word for reading.
    Description, as the server wrote it
    Get the best price to swap or bridge tokens, within one chain or across chains (EVM <-> Solana). Asks every liquidity provider and returns the best quote plus alternatives with human-readable amounts, minimum received after slippage, fees (LayerHop fee, partner fee, provider fee, gas) and ETA. Returns a quoteId (valid until expiresAt) and a layerhop.com swapLink a human can open to review and sign. Read-only: The LayerHop MCP server holds no private keys and never signs or broadcasts transactions. Always show the user the fees and output and get confirmation before proceeding.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • list_chainsList every blockchain LayerHop can swap from or to: slug, numeric chain id, name, VM type (evm or svm = Solana) and native coin.No findings

    Why it is in this group

    • The name "list_chains" says "list": a word for reading.
    Description, as the server wrote it
    List every blockchain LayerHop can swap from or to: slug, numeric chain id, name, VM type (evm or svm = Solana) and native coin. Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • list_deposit_addressesList the deposit addresses of the API key's account and mode (live or test), newest first: address, route, status, deposit count.No findings

    Why it is in this group

    • The name "list_deposit_addresses" says "list": a word for reading.
    Description, as the server wrote it
    List the deposit addresses of the API key's account and mode (live or test), newest first: address, route, status, deposit count. Needs a LayerHop API key. Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • list_ordersList LayerHop orders (swaps built or submitted through LayerHop) where the address is the sender or recipient, newest first, with status.No findings

    Why it is in this group

    • The name "list_orders" says "list": a word for reading.
    Description, as the server wrote it
    List LayerHop orders (swaps built or submitted through LayerHop) where the address is the sender or recipient, newest first, with status. Public data (addresses only). Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true
  • list_tokensList LayerHop's built-in tokens on one chain (symbol, contract address or mint, decimals).No findings

    Why it is in this group

    • The name "list_tokens" says "list": a word for reading.
    Description, as the server wrote it
    List LayerHop's built-in tokens on one chain (symbol, contract address or mint, decimals). Symbols can be used directly in get_quote; other tokens can be quoted by address. Read-only.

    Annotations the server declares

    • readOnlyHint: true
    • openWorldHint: true

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 0.5.0. Values in angle brackets are yours to fill in.

claude mcp add --transport http layerhop https://mcp.layerhop.com/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__layerhop__list_chains",
      "mcp__layerhop__list_tokens",
      "mcp__layerhop__get_quote",
      "mcp__layerhop__get_order_status",
      "mcp__layerhop__list_orders",
      "mcp__layerhop__list_deposit_addresses",
      "mcp__layerhop__get_deposit_address"
    ],
    "ask": [
      "mcp__layerhop__build_transaction",
      "mcp__layerhop__simulate_transaction",
      "mcp__layerhop__report_submitted",
      "mcp__layerhop__get_swap_link",
      "mcp__layerhop__create_deposit_address",
      "mcp__layerhop__refresh_deposit_address",
      "mcp__layerhop__simulate_deposit"
    ],
    "deny": [
      "mcp__layerhop__disable_deposit_address"
    ]
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as layerhop. Review it before you use it.