Used to look up all NFTs or Tokens by authority (32 byte base58 encoded address)
AI agents call getAssetsByAuthority to retrieve information from Solana MCP Demo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves blockchain data (NFTs/Tokens associated with an authority address) without modifying state, executing arbitrary code, or causing financial transactions. It is a straightforward query that returns information, fitting the 'Read' category. The blast radius of misuse is minimal - an agent could only enumerate assets, not modify, delete, or transfer them.
From the tool's definition Tool description states 'look up all NFTs or Tokens by authority' - a query operation with no modification or execution of code. The sibling tools (getAsset, getAssets, getAssetsByOwner, etc.) are all read-only blockchain data retrieval methods.
Attacks that exploit this kind of access
Used to look up all NFTs or Tokens by authority (32 byte base58 encoded address). It is categorised as a Read tool in the Solana MCP Demo MCP Server, which means it retrieves data without modifying state.
Register the Solana MCP Demo MCP server in PolicyLayer and add a rule for getAssetsByAuthority: 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 Solana MCP Demo. Nothing to install.
getAssetsByAuthority 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 getAssetsByAuthority 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 getAssetsByAuthority. 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.
getAssetsByAuthority is provided by the Solana MCP Demo MCP server (metaplex-foundation/das-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.
Teams ship this data inside their own products. See what a licence covers →