wallet-grant

Issue a scoped NIP-47 connection over this identity\

SERVERNostr Bray SOURCEnostr-bray

Critical RISK CLASS

Category Financial

Parameters 00 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/dev-forgesworn-bray/wallet-grant.md

WHAT IT DOES

What wallet-grant does on Nostr Bray

AI agents use wallet-grant to commit financial operations through Nostr Bray, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why wallet-grant is rated Critical

NIP-47 is a Bitcoin Lightning wallet connection protocol enabling financial transactions.

From the tool's definition Issue a scoped NIP-47 connection

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wallet-grant safely

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

wallet-grant Approval-gated

Any call to wallet-grant is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wallet-grant": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Nostr Bray, apply this rule, and every wallet-grant call is checked against it from then on.

FAQ

Questions about wallet-grant

What does the wallet-grant tool do? +

Issue a scoped NIP-47 connection over this identity\. It is categorised as a Financial tool in the Nostr Bray MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on wallet-grant? +

Register the Nostr Bray MCP server in PolicyLayer and add a rule for wallet-grant: 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 Nostr Bray. Nothing to install.

What risk level is wallet-grant? +

wallet-grant is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit wallet-grant? +

Yes. Add a rate_limit block to the wallet-grant 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-grant completely? +

Set action: deny in the PolicyLayer policy for wallet-grant. 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-grant? +

wallet-grant is provided by the Nostr Bray MCP server (nostr-bray). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Nostr Bray, and thousands of servers like it.

This server

All 261 Nostr Bray tools → Critical-risk tools on this server →

Across the catalogue

export_wallet on Conviction → All critical-risk MCP tools → The MCP Attack Database →

Guides

Govern MCP payment tools →Human-in-the-loop →Tool call approval →