Checks if a given token address is available for swaps in the Symphony protocol.
AI agents call is_symphony_token_listed to retrieve information from SEI MCP Server V2 without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool performs a lookup or verification check against the Symphony protocol to determine token listing status. It retrieves data (availability status) with no side effects, no code execution, no financial operations, and no data modification. It is a pure read operation typical of data queries on a blockchain.
From the tool's definition Tool name 'is_symphony_token_listed' and description 'Checks if a given token address is available for swaps' indicate a query operation that retrieves information without modifying state or executing external actions.
Attacks that exploit this kind of access
Checks if a given token address is available for swaps in the Symphony protocol. It is categorised as a Read tool in the SEI MCP Server V2 MCP Server, which means it retrieves data without modifying state.
Register the SEI MCP Server V2 MCP server in PolicyLayer and add a rule for is_symphony_token_listed: 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 SEI MCP Server V2. Nothing to install.
is_symphony_token_listed is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the is_symphony_token_listed 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 is_symphony_token_listed. 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.
is_symphony_token_listed is provided by the SEI MCP Server V2 MCP server (testinguser1111111/sei-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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