updown_claim

Claim winnings or refund from a settled UPDOWN round. Pre-checks via quoteClaimPayout — refuses to send if 0.

SERVERBasis MCP Server SOURCElaunch-on-basis/mcp-ts

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/launch-on-basis-mcp-ts/updown-claim.md

WHAT IT DOES

What updown_claim does on Basis MCP Server

AI agents use updown_claim to commit financial operations through Basis MCP Server, usually the final step of a payment, billing, or trading workflow. A call moves real money.

RISK

Why updown_claim is rated Critical

This tool triggers an on-chain financial transaction to claim monetary payouts from a prediction market. It moves cryptocurrency assets and constitutes a financial operation. Misuse could result in unauthorized claims or interaction with incorrect rounds, making severity high.

From the tool's definition 'Claim winnings or refund from a settled UPDOWN round' — directly moves funds (winnings or refunds) to the user from a prediction market contract.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs updown_claim safely

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

updown_claim Approval-gated

Any call to updown_claim 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": {
    "updown_claim": {
      "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 Basis MCP Server, apply this rule, and every updown_claim call is checked against it from then on.

FAQ

Questions about updown_claim

What does the updown_claim tool do? +

Claim winnings or refund from a settled UPDOWN round. Pre-checks via quoteClaimPayout — refuses to send if 0. It is categorised as a Financial tool in the Basis MCP Server MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

How do I enforce a policy on updown_claim? +

Register the Basis MCP Server MCP server in PolicyLayer and add a rule for updown_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 Basis MCP Server. Nothing to install.

What risk level is updown_claim? +

updown_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 updown_claim? +

Yes. Add a rate_limit block to the updown_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 updown_claim completely? +

Set action: deny in the PolicyLayer policy for updown_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 updown_claim? +

updown_claim is provided by the Basis MCP Server MCP server (launch-on-basis/mcp-ts). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on Basis MCP Server, and thousands of servers like it.

This server

All 204 Basis MCP Server tools → Critical-risk tools on this server →

Across the catalogue

All critical-risk MCP tools → The MCP Attack Database →

Guides

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