get_coin_by_contract

A read tool on the REI Crypto MCP server.

SERVERREI Crypto MCP Server SOURCE0xreisearch/crypto-mcp-beta

Low RISK CLASS

Category Read

Parameters 00 required

Recommended Allowedsee the rule below

Registry record Grade B, identity unverified Pull the record →

This record as markdown: /tools/0xreisearch-crypto-mcp-beta/get-coin-by-contract.md

WHAT IT DOES

What get_coin_by_contract does on REI Crypto MCP Server

AI agents call get_coin_by_contract 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.

RISK

Why get_coin_by_contract is rated Low

The tool retrieves cryptocurrency coin information by contract address. This is a query/lookup operation with no data modification, deletion, or execution capabilities. No side effects or irreversible actions possible. Aligns with Read category definition of 'retrieves or queries data; no side effects.'

From the tool's definition Tool name 'get_coin_by_contract' indicates data retrieval. Server description specifies 'crypto data retrieval' without side effects.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_coin_by_contract 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_coin_by_contract, this is the rule to start with:

get_coin_by_contract Allowed

get_coin_by_contract 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_coin_by_contract": {}
  }
}

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

The button opens the PolicyLayer dashboard: create your workspace, connect REI Crypto MCP Server, apply this rule, and every get_coin_by_contract call is checked against it from then on.

FAQ

Questions about get_coin_by_contract

What does the get_coin_by_contract tool do? +

get_coin_by_contract 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.

How do I enforce a policy on get_coin_by_contract? +

Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for get_coin_by_contract: 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.

What risk level is get_coin_by_contract? +

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

Can I rate-limit get_coin_by_contract? +

Yes. Add a rate_limit block to the get_coin_by_contract 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_coin_by_contract completely? +

Set action: deny in the PolicyLayer policy for get_coin_by_contract. 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_coin_by_contract? +

get_coin_by_contract 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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