AI agents use sell_token to commit financial operations through Pumpswap — usually the final step of a payment, billing, or trading workflow. A call moves real money.
The tool name 'sell_token' combined with the context of a swap/DEX platform (pumpswap) and sibling tools for buying tokens and getting prices indicates this tool executes a financial transaction to sell cryptocurrency tokens. Despite the empty description, the naming convention and server context make the financial classification highly likely. Misuse could result in unauthorized token sales and loss of funds.
From the tool's definition Tool name 'sell_token' on a server named 'pumpswap-mcp' alongside sibling tools 'buy_token', 'get_pool_data', 'get_token_price' — strongly implies token trading on a swap platform.
Documented attack patterns abuse exactly the kind of access sell_token gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Pumpswap, and nothing reaches the server without passing your rules. This is the rule we recommend for sell_token:
{
"version": "1",
"default": "deny",
"tools": {
"sell_token": {
"deny_if": [
{
"conditions": [],
"on_deny": "Requires human approval."
}
]
}
}
}Any call to sell_token is blocked until a human approves it. The rest of the server keeps working.
Free to start. No card required.
sell_token. It is categorised as a Financial tool in the Pumpswap MCP Server, which means it involves financial transactions. Block by default and require explicit approval.
Register the Pumpswap 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 Pumpswap. Nothing to install.
sell_token is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
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.
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.
sell_token is provided by the Pumpswap MCP server (kukapay/pumpswap-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Pumpswap, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
Free to start. No card required.
4 Pumpswap tools catalogued and risk-classified — across an index of 43,000+ MCP servers.