get_swaps
A read tool on the REI Crypto MCP server.
This record as markdown: /tools/0xreisearch-crypto-mcp-beta/get-swaps.md
What get_swaps does on REI Crypto MCP Server
AI agents call get_swaps 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 get_swaps is rated Low
The tool appears to retrieve swap transaction or event data from a crypto data API. Despite the empty description, the naming convention ('get_' prefix), server purpose (data retrieval), and consistent sibling tool patterns all indicate this is a query/fetch operation with no side effects. Severity is low because reading crypto data poses minimal risk compared to execution or financial operations.
From the tool's definition Tool name 'get_swaps' indicates data retrieval. Server description emphasizes 'API access to DefiLlama Pro, CoinGecko Pro, and Arkham Intelligence for crypto data retrieval' with no write/execute/destructive capabilities mentioned.
Attacks that exploit this kind of access
The rule that runs get_swaps 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 get_swaps, this is the rule to start with:
get_swaps 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 get_swaps call is checked against it from then on.
Questions about get_swaps
get_swaps 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 get_swaps: 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.
get_swaps 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 get_swaps 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 get_swaps. 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.
get_swaps 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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