{
  "mcpServers": {
    "token-safety-check": {
      "command": "npx",
      "args": ["-y", "token-safety-check"],
      "env": { "X402_PRIVATE_KEY": "0x<private key of the dedicated wallet>" }
    }
  }
}

npm install token-safety-check

import { createTokenSafetyClient } from "token-safety-check";

const client = createTokenSafetyClient({ privateKey: process.env.X402_PRIVATE_KEY as `0x${string}` });

const first = await client.checkToken({ chain: "base", address: "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed" });
console.log(first.risk.score, first.risk.level, first.risk.summary);
// 15 low Low risk: the owner can pause all transfers; ownership is not renounced.

// Later: what changed since then?
const later = await client.checkToken({ address: first.address, chain: "base", since: first.watch.fingerprint });
if (later.watch.changes?.anythingChanged) console.log(later.watch.changes);

const v = await client.verdict({ address: "0xe468f13905669748bf312611b9ebcc8ccc6db5d9" });
console.log(v.grade, v.oneLiner); // SKETCHY Liquidity: two coins and a prayer
console.log(v.take, v.card);       // "$KTI: 60/100 risk. ..." and a signed share-card link
// Pass requestKey (8-128 letters, digits or _.:-) and a retry with the same key is never charged twice.

let list = [
  { chain: "base", address: "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed" },
  { chain: "solana", address: "JUPyiwrYJFskUPiHa7hkeR8VUtAeFoSYbKedZNsDvCN" },
] as const;
let fingerprints: (string | undefined)[] = [];

// Every hour (or however often): one $0.01 call for the whole list.
const w = await client.watchlist(list.map((t, i) => ({ ...t, since: fingerprints[i] })));
for (const alert of w.alerts) console.log(alert); // e.g. "PEPINA (eth): risk 0 -> 30 (medium); liquidity -99.99%"
fingerprints = w.tokens.map((t) => t.fingerprint);

import { generateText } from "ai";
import { createTokenSafetyClient } from "token-safety-check";
import { tokenSafetyTools } from "token-safety-check/ai";

const tools = tokenSafetyTools(createTokenSafetyClient({ privateKey: process.env.X402_PRIVATE_KEY as `0x${string}` }));
const { text } = await generateText({ model, tools, prompt: "Is 0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed on Base safe to buy?" });

import { tokenSafetyPlugin } from "token-safety-check/eliza";

export const character = {
  name: "trader",
  plugins: [tokenSafetyPlugin],
  settings: { secrets: { TOKEN_SAFETY_PRIVATE_KEY: process.env.TOKEN_SAFETY_PRIVATE_KEY } },
};

import { customActionProvider } from "@coinbase/agentkit";
import { z } from "zod";
import { createTokenSafetyClient } from "token-safety-check";

const safety = createTokenSafetyClient({ privateKey: process.env.X402_PRIVATE_KEY as `0x${string}` });

export const tokenSafety = customActionProvider({
  name: "check_token_safety",
  description: "Rug check a token on Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: 0-100 risk score with reasons.",
  schema: z.object({
    address: z.string().describe("Token contract or Solana mint address"),
    chain: z.enum(["base", "eth", "arbitrum", "optimism", "polygon", "solana"]).optional(),
  }),
  invoke: async (args) => JSON.stringify(await safety.checkToken(args)),
});
// Add tokenSafety to the actionProviders you pass to AgentKit.from(...).

import { tool } from "@langchain/core/tools";
import { z } from "zod";
import { createTokenSafetyClient } from "token-safety-check";

const safety = createTokenSafetyClient({ privateKey: process.env.X402_PRIVATE_KEY as `0x${string}` });

export const checkTokenSafety = tool(async (args) => JSON.stringify(await safety.checkToken(args)), {
  name: "check_token_safety",
  description: "Rug check a token on Base, Ethereum, Arbitrum, Optimism, Polygon or Solana: 0-100 risk score with reasons.",
  schema: z.object({
    address: z.string(),
    chain: z.enum(["base", "eth", "arbitrum", "optimism", "polygon", "solana"]).optional(),
  }),
});

{
  "address": "0x4ed4E862860beD51a9570b96d89aF5E1B0Efefed",
  "chain": "base",
  "name": "Degen",
  "symbol": "DEGEN",
  "risk": {
    "score": 15,
    "level": "low",
    "reasons": [
      { "code": "can-pause", "points": 10, "text": "The owner can pause all transfers." },
      { "code": "owner-not-renounced", "points": 5, "text": "Ownership is not renounced." }
    ],
    "summary": "Low risk: the owner can pause all transfers; ownership is not renounced."
  },
  "market": { "dex": "uniswap-v3", "pairedWith": "WETH", "priceUsd": 0.000963, "quoteSideLiquidityUsd": 134000 },
  "watch": { "fingerprint": "eyJzIjoxNSwi…", "changes": null }
}