wallet_optin_asset

Opt the active wallet account into an asset by ID. Creates, signs, and submits the opt-in transaction.

SERVERAlgorand MCP SOURCEgoplausible/algorand-mcp

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/goplausible-algorand-mcp/wallet-optin-asset.md

WHAT IT DOES

What wallet_optin_asset does on Algorand MCP

AI agents use wallet_optin_asset to create or update resources in Algorand MCP, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Algorand MCP environment.

RISK

Why wallet_optin_asset is rated Medium

Opting into an asset on Algorand creates a new on-chain state entry (minimum balance requirement deducted) and submits a transaction to the blockchain. This is a reversible write operation (you can opt out later), not purely destructive. It does commit a small amount of ALGO as minimum balance reserve, but it's not a direct financial transfer or trade, so Write is the most appropriate category.

From the tool's definition Opt the active wallet account into an asset by ID. Creates, signs, and submits the opt-in transaction.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs wallet_optin_asset safely

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

wallet_optin_asset Rate-limited

wallet_optin_asset stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "wallet_optin_asset": {
      "limits": [
        {
          "counter": "wallet_optin_asset_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

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

FAQ

Questions about wallet_optin_asset

What does the wallet_optin_asset tool do? +

Opt the active wallet account into an asset by ID. Creates, signs, and submits the opt-in transaction. It is categorised as a Write tool in the Algorand MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on wallet_optin_asset? +

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

What risk level is wallet_optin_asset? +

wallet_optin_asset is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit wallet_optin_asset? +

Yes. Add a rate_limit block to the wallet_optin_asset 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_optin_asset completely? +

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

wallet_optin_asset is provided by the Algorand MCP server (goplausible/algorand-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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