get_swap_quote

THE RISK

Low Risk

Why get_swap_quote needs a policy

This tool retrieves data (a price quote) from the Tempo DEX without side effects. It does not execute a swap, transfer funds, modify balances, or create financial obligations—it only queries current pricing. Despite the financial context of the server (stablecoin payments), the tool itself is a read operation.

From the tool's definition Tool name 'get_swap_quote' and description 'Get a price quote for swapping stablecoins on Tempo DEX' indicate a read-only query operation that retrieves pricing information without executing any transaction or modifying state.

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

POLICY

How to control get_swap_quote

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

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "get_swap_quote": {}
  }
}

get_swap_quote is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.

Create a free account and register Tempo — 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

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Financial cancel_order Cancel an open order on the DEX. The remaining unfilled amount will be Financial cancel_scheduled_payment Cancel a pending scheduled payment before it executes. Financial swap_stablecoins Execute a stablecoin swap on Tempo DEX. Financial claim_rewards Claim all pending rewards for a TIP-20 token. Rewards are sent to your wallet Financial distribute_rewards Distribute rewards to all opted-in holders of a TIP-20 token. Financial mint_tokens Mint new TIP-20 tokens to a recipient address. Financial opt_in_rewards Opt into rewards for a TIP-20 token. After opting in, you will earn rewards Financial opt_out_rewards Opt out of rewards for a TIP-20 token. By default, any pending rewards will be

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Go deeper

Roll out MCP under one policy → Per-person scoped tokens, one central policy, and full audit across every server your team connects.
The MCP Attack Database → Documented attack patterns against MCP deployments — and the policies that stop them.
Data exfiltration → How read access becomes an exfiltration channel when chained with untrusted content.
MCP token cost → What connecting this server costs in context-window tokens on every request.
Rate Limiting MCP Tool Calls: A Practical Guide →
MCP Security: Why Prompt Guardrails Aren't Enough →
PolicyLayer vs alternatives → How deterministic, per-call MCP policy compares with gateways, identity layers, and authorisation platforms.

FAQ

Questions about get_swap_quote

What does the get_swap_quote tool do? +

Get a price quote for swapping stablecoins on Tempo DEX. It is categorised as a Read tool in the Tempo MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_swap_quote? +

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

What risk level is get_swap_quote? +

get_swap_quote is a Read tool with low risk. Read-only tools are generally safe to allow by default.

Can I rate-limit get_swap_quote? +

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

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

get_swap_quote is provided by the Tempo MCP server (arome3/tempo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

Enforce policy on every Tempo tool call.

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

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