pair_ledger_ltc
Pair the host's directly-connected Ledger device for Litecoin signing. REQUIREMENTS: Ledger plugged in over USB, device unlocked, the 'Litecoin' app open on-screen. Ledger Live's WalletConnect relay does not expose Litecoin accounts to dApps, so signing goes over USB HID via @ledgerhq/hw-app-btc ...
This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/pair-ledger-ltc.md
What pair_ledger_ltc does on VaultPilot MCP
AI agents call pair_ledger_ltc to retrieve information from VaultPilot MCP without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
| Parameter | Type | Required | Description |
|---|---|---|---|
gapLimit | integer | — | BIP44 gap limit — stop walking each (type, chain) after this many consecutive addresses with zero on-chain history. Default 20. |
accountIndex | integer | — | Ledger Litecoin account slot. One call enumerates ALL FOUR address types (legacy at `44'/2'/<n>'/...`, p2sh-segwit at `49'/2'/<n>'/...`, native segwit at `84'/2 |
Parameters from the server's own tool schema.
Why pair_ledger_ltc is rated Low
The primary action is pairing/enumerating Litecoin addresses from a Ledger device — it reads/derives public addresses but does not sign or broadcast any transaction. However, it establishes a hardware wallet pairing session which is a prerequisite for financial operations.
From the tool's definition 'One call enumerates the four BIP-44 address types (legacy L…, p2sh-segwit M…, native segwit ltc1q…, taproot ltc1p…) for the given account index'
Attacks that exploit this kind of access
The rule that runs pair_ledger_ltc safely
PolicyLayer is an MCP gateway: it sits between your AI agents and VaultPilot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For pair_ledger_ltc, this is the rule to start with:
pair_ledger_ltc is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every pair_ledger_ltc call is checked against it from then on.
Questions about pair_ledger_ltc
Pair the host's directly-connected Ledger device for Litecoin signing. REQUIREMENTS: Ledger plugged in over USB, device unlocked, the 'Litecoin' app open on-screen. Ledger Live's WalletConnect relay does not expose Litecoin accounts to dApps, so signing goes over USB HID via @ledgerhq/hw-app-btc (the same SDK as Bitcoin, with currency:'litecoin' selecting Litecoin-specific encoding). One call enumerates the four BIP-44 address types (legacy L…, p2sh-segwit M…, native segwit ltc1q…, taproot ltc1p…) for the given account index. BIP-44 coin_type 2. Per-type fault-tolerant: each address-type walk runs independently, so one type's failure (e.g. the Ledger Litecoin app currently rejects bech32m/taproot with 'Unsupported address format bech32m') does NOT abort the others — the failed type is recorded under skipped[] in the response and the remaining three are paired and persisted. Note: Litecoin Core has not activated Taproot on mainnet, so ltc1p… outputs would not be spendable anyway — taproot pairing is effectively forward-compat only. All paired entries surface under the litecoin: [...] section of get_ledger_status. It is categorised as a Read tool in the VaultPilot MCP MCP Server, which means it retrieves data without modifying state.
pair_ledger_ltc accepts 2 parameters: gapLimit, accountIndex. The full parameter table on this page comes from the server's own tool schema.
Register the VaultPilot MCP server in PolicyLayer and add a rule for pair_ledger_ltc: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches VaultPilot MCP. Nothing to install.
pair_ledger_ltc is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the pair_ledger_ltc rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for pair_ledger_ltc. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
pair_ledger_ltc is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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