derive_wallet

Derive an EVM + Solana wallet from a BIP39 mnemonic at a given account index (BIP44 path)

SERVERAgenti SOURCEnirholas/agenti

Low RISK CLASS

Category Other

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/nirholas-agenti/derive-wallet.md

WHAT IT DOES

What derive_wallet does on Agenti

AI agents call derive_wallet as a supporting operation in Agenti workflows.

RISK

Why derive_wallet is rated Low

This tool performs a cryptographic derivation operation — it computes wallet addresses and keys from a mnemonic seed phrase. It doesn't read external data, write/modify state, execute commands, delete data, or move funds directly. However, it handles highly sensitive key material (BIP39 mnemonic), and misuse could expose private keys enabling financial theft.

From the tool's definition Derive an EVM + Solana wallet from a BIP39 mnemonic at a given account index (BIP44 path)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs derive_wallet safely

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

derive_wallet Rate-limited

derive_wallet gets a rate cap, and everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "derive_wallet": {
      "limits": [
        {
          "counter": "derive_wallet_rate",
          "window": "minute",
          "max": 60,
          "scope": "grant"
        }
      ]
    }
  }
}

SET A RULE FOR THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Agenti, apply this rule, and every derive_wallet call is checked against it from then on.

FAQ

Questions about derive_wallet

What does the derive_wallet tool do? +

Derive an EVM + Solana wallet from a BIP39 mnemonic at a given account index (BIP44 path). It is categorised as a Other tool in the Agenti MCP Server, which means it performs auxiliary operations.

How do I enforce a policy on derive_wallet? +

Register the Agenti MCP server in PolicyLayer and add a rule for derive_wallet: 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 Agenti. Nothing to install.

What risk level is derive_wallet? +

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

Can I rate-limit derive_wallet? +

Yes. Add a rate_limit block to the derive_wallet 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 derive_wallet completely? +

Set action: deny in the PolicyLayer policy for derive_wallet. 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 derive_wallet? +

derive_wallet is provided by the Agenti MCP server (nirholas/agenti). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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