wallet_getPublicKey

Retrieves a public key by protocol/key derivation. Use identityKey:true for the root identity key. protocolID is a JSON array like [2,

SERVERBitcoin SV MCP Server SOURCEb-open-io/bsv-mcp

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/b-open-io-bsv-mcp/wallet-getpublickey.md

WHAT IT DOES

What wallet_getPublicKey does on Bitcoin SV MCP Server

AI agents call wallet_getPublicKey to retrieve information from Bitcoin SV MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why wallet_getPublicKey is rated Low

This tool retrieves existing data (a public key) from the wallet without creating, modifying, deleting, or executing code. Public key retrieval is a read-only operation with no side effects. Severity is low because public keys are meant to be public and their exposure does not directly compromise funds or enable unauthorized transactions.

From the tool's definition Tool name 'wallet_getPublicKey' and description 'Retrieves a public key by protocol/key derivation' indicate a query operation that reads and returns cryptographic key data without modifying or executing operations.

Risk signalsAdmin/system-level operation

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wallet_getPublicKey safely

PolicyLayer is an MCP gateway: it sits between your AI agents and Bitcoin SV MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For wallet_getPublicKey, this is the rule to start with:

wallet_getPublicKey Allowed

wallet_getPublicKey is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wallet_getPublicKey": {}
  }
}

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Bitcoin SV MCP Server, apply this rule, and every wallet_getPublicKey call is checked against it from then on.

FAQ

Questions about wallet_getPublicKey

What does the wallet_getPublicKey tool do? +

Retrieves a public key by protocol/key derivation. Use identityKey:true for the root identity key. protocolID is a JSON array like [2,. It is categorised as a Read tool in the Bitcoin SV MCP Server MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on wallet_getPublicKey? +

Register the Bitcoin SV MCP Server MCP server in PolicyLayer and add a rule for wallet_getPublicKey: 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 Bitcoin SV MCP Server. Nothing to install.

What risk level is wallet_getPublicKey? +

wallet_getPublicKey is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit wallet_getPublicKey? +

Yes. Add a rate_limit block to the wallet_getPublicKey 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.

How do I block wallet_getPublicKey completely? +

Set action: deny in the PolicyLayer policy for wallet_getPublicKey. 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.

What MCP server provides wallet_getPublicKey? +

wallet_getPublicKey is provided by the Bitcoin SV MCP Server MCP server (b-open-io/bsv-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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