search_mentions
A read tool on the REI Crypto MCP server.
This record as markdown: /tools/0xreisearch-crypto-mcp-beta/search-mentions.md
What search_mentions does on REI Crypto MCP Server
AI agents call search_mentions to retrieve information from REI Crypto MCP Server without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why search_mentions is rated Low
The tool appears to search or retrieve mention data from Arkham Intelligence without modifying or executing operations. Given the sibling tools are all Read operations (get_balances, get_prices, get_bridge_details, etc.), this tool likely follows the same pattern of data retrieval. The empty description lowers confidence, but the name and server context strongly indicate a passive query operation.
From the tool's definition Tool name 'search_mentions' and server context (Arkham Intelligence API access) suggest querying mention data. Description is empty, limiting certainty.
Attacks that exploit this kind of access
The rule that runs search_mentions safely
PolicyLayer is an MCP gateway: it sits between your AI agents and REI Crypto MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For search_mentions, this is the rule to start with:
search_mentions is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect REI Crypto MCP Server, apply this rule, and every search_mentions call is checked against it from then on.
Questions about search_mentions
search_mentions is a read tool on the REI Crypto MCP Server MCP server. It is categorised as a Read tool in the REI Crypto MCP Server MCP Server, which means it retrieves data without modifying state.
Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for search_mentions: 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 REI Crypto MCP Server. Nothing to install.
search_mentions 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 search_mentions 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 search_mentions. 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.
search_mentions is provided by the REI Crypto MCP Server MCP server (0xreisearch/crypto-mcp-beta). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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