alpha_claim

THE RISK

Critical Risk

Why alpha_claim needs a policy

This tool redeems tokens for USDC stablecoin, which constitutes a financial transaction — moving real monetary value (USDC) to the caller's account. It commits a financial operation on the blockchain that is irreversible once executed.

From the tool's definition Claim USDC from a resolved Alpha Arcade market by redeeming outcome tokens. Winning = 1:1 USDC.

Documented attack patterns abuse exactly the kind of access alpha_claim gives an agent:

POLICY

How to control alpha_claim

PolicyLayer is an MCP gateway — it sits between your AI agents and Algorand MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for alpha_claim:

policy.json

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

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

Create a free account and register Algorand MCP — nothing to install.
Add this policy — paste it, or build it visually.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

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EXPLORE

Related tools and policies

More Algorand MCP tools

Financial alpha_amend_order Edit an existing unfilled Alpha Arcade order in-place (change price, quantity, or slippage Financial alpha_cancel_order Cancel an open Alpha Arcade order. Requires escrowAppId and orderOwner. Refunds USDC/token Financial api_ultrade_market_cancel_orders Cancel multiple open orders Financial api_haystack_execute_swap Execute an optimized token swap via Haystack Router — gets the best route across multiple Financial api_ultrade_wallet_withdraw Withdraw token Financial api_ultrade_wallet_withdraw_message Generate message from the withdrawal data Financial make_asset_transfer_txn Create an asset transfer transaction Financial alpha_propose_match Propose a match between an existing maker order and your wallet as taker on Alpha Arcade.

All 172 Algorand MCP tools →

Financial tools on other servers

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Go deeper

Govern MCP payment tools → Approval gates, spend caps, and per-identity scopes on every refund, payout, and charge your agents make.
Critical-risk tools in Algorand MCP → Every critical-risk tool this server exposes, in one view.
All critical-risk MCP tools → Every critical-risk tool across the catalogue, and the policy pattern that contains them.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Human-in-the-loop → When a tool call should wait for a person — and when policy can decide alone.
Tool call approval → Approval gates on individual tool calls: auto-allow, prompt, or deny.
How to Add Spending Controls to Any MCP Agent →
Rate Limiting MCP Tool Calls: A Practical Guide →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about alpha_claim

What does the alpha_claim tool do? +

Claim USDC from a resolved Alpha Arcade market by redeeming outcome tokens. Winning = 1:1 USDC. It is categorised as a Financial tool in the Algorand MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on alpha_claim? +

Register the Algorand MCP server in PolicyLayer and add a rule for alpha_claim: 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 alpha_claim? +

alpha_claim 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 alpha_claim? +

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

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

alpha_claim 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.

Enforce policy on every Algorand MCP tool call.

Start from Algorand MCP, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.

CHECK YOUR STACK →