get_chains

GET /api/v2/chains

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-chains.md

WHAT IT DOES

What get_chains does on REI Crypto MCP Server

AI agents call get_chains 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_chains is rated Low

This tool retrieves blockchain chain information from the underlying crypto data APIs (DefiLlama Pro, CoinGecko Pro, or Arkham Intelligence). It is a simple GET request that queries and returns data without side effects. No data is created, modified, deleted, or executed.

From the tool's definition Tool name 'get_chains' with HTTP GET method and description 'GET /api/v2/chains' indicate a read-only data retrieval operation. No mutation, deletion, execution, or financial operation is implied.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs get_chains 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_chains, this is the rule to start with:

get_chains Allowed

get_chains 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_chains": {}
  }
}

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_chains call is checked against it from then on.

FAQ

Questions about get_chains

What does the get_chains tool do? +

GET /api/v2/chains. 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_chains? +

Register the REI Crypto MCP Server MCP server in PolicyLayer and add a rule for get_chains: 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_chains? +

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

Can I rate-limit get_chains? +

Yes. Add a rate_limit block to the get_chains 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_chains completely? +

Set action: deny in the PolicyLayer policy for get_chains. 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_chains? +

get_chains 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.

KEEP EXPLORING

More on REI Crypto MCP Server, and thousands of servers like it.

This server

All 117 REI Crypto MCP Server tools →

Across the catalogue

get_cocktail_by_category on Cocktails RAG MCP Server →get_torrent_detail on M-Team MCP Server →aiva_get_affiliate on AIVA MCP Server →get-chuck-categories on Jokes MCP Server → The MCP Attack Database →

Guides

Roll out MCP under one policy →Data exfiltration →MCP token cost →