sell_token

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/sell-token.md

WHAT IT DOES

What sell_token does on Basis MCP Server

AI agents use sell_token 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 sell_token is rated Critical

This tool performs a financial transaction by selling tokens in exchange for USDB (a stablecoin/asset). It directly moves value on-chain, constituting a financial operation. Misuse could result in unintended asset sales, significant financial loss, or manipulation of trading positions. The mention of slippage, taxes, and balance checks confirms this is a live trade execution.

From the tool's definition 'Sell a token for USDB' — directly executes a token sale transaction on BNB Smart Chain, moving assets and involving trading with tax implications (1.5% or 0.5%)

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs sell_token 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 sell_token, this is the rule to start with:

sell_token Approval-gated

Any call to sell_token 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": {
    "sell_token": {
      "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 sell_token call is checked against it from then on.

FAQ

Questions about sell_token

What does the sell_token tool do? +

Sell a token for USDB. Checks balance first. Use percentage to scale out. NOTE: Floor+ tokens (multiplier 1-99) and prediction market tokens have 1.5% tax, other tokens have 0.5% — account for this in slippage. 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 sell_token? +

Register the Basis MCP Server MCP server in PolicyLayer and add a rule for sell_token: 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 sell_token? +

sell_token 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 sell_token? +

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

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

sell_token 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.

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

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

Guides

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