get_supported_chains

Maps to GET /chains. Lists supported EVM chains with chain IDs and native gas tokens: Ethereum, Arbitrum, Base, Polygon, BNB Chain.

SERVERSwapwizard SOURCE@swapwizard/mcp-server

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade D, identity unverified Pull the record →

This record as markdown: /tools/defire-business-swapwizard-mcp/get-supported-chains.md

WHAT IT DOES

What get_supported_chains does on Swapwizard

AI agents call get_supported_chains to retrieve information from Swapwizard without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

RISK

Why get_supported_chains is rated Low

This tool retrieves static configuration information (supported chains, chain IDs, gas tokens) without modifying state, executing code, or moving funds. It is a simple informational query with minimal risk even if misused by an AI agent.

From the tool's definition Tool name 'get_supported_chains' with 'Maps to GET /chains. Lists supported EVM chains' — pure data retrieval with no mutations or side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_supported_chains safely

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

get_supported_chains Allowed

get_supported_chains is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

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

ALLOW ONLY THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect Swapwizard, apply this rule, and every get_supported_chains call is checked against it from then on.

FAQ

Questions about get_supported_chains

What does the get_supported_chains tool do? +

Maps to GET /chains. Lists supported EVM chains with chain IDs and native gas tokens: Ethereum, Arbitrum, Base, Polygon, BNB Chain. It is categorised as a Read tool in the Swapwizard MCP Server, which means it retrieves data without modifying state.

How do I enforce a policy on get_supported_chains? +

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

What risk level is get_supported_chains? +

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

Can I rate-limit get_supported_chains? +

Yes. Add a rate_limit block to the get_supported_chains 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_supported_chains completely? +

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

get_supported_chains is provided by the Swapwizard MCP server (@swapwizard/mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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