MCP Safety Warden
MCP proxy adding security scanning, behavioral profiling, risk gating, and safe tool call execution.
作者による説明(英語の原文)
Paid x402 pre-checks for agents: phishing links, Base tokens, EIP-712 permits, calldata, DNS.
この3つを1つのスコアにまとめることはしません。意見、測定、人気はそれぞれ別のものだからです。
このサーバーのやさしい解説はまだ書いていません。以下はレジストリから読み取った事実です。
使っているAIアプリを選んで、設定をコピーしてください。
必要なもの
どのアプリを使っていますか?
上でアプリを選んでください。選んだアプリを覚えておくので、次からはボタンに「…にインストール」と表示されます。
ウェブ、デスクトップ、モバイルのClaudeで使えます:
https://nightshift-x402.nightshift-labs.workers.dev/mcpターミナルでこれを実行します
claude mcp add --transport http agent-safety https://nightshift-x402.nightshift-labs.workers.dev/mcpプロジェクトの .cursor/mcp.json、または ~/.cursor/mcp.json に貼り付けます
{
"mcpServers": {
"agent-safety": {
"url": "https://nightshift-x402.nightshift-labs.workers.dev/mcp"
}
}
}ブラウザがアプリを開いてよいか確認し、そのあとアプリが設定を表示して確認を求めます。キーの値は空欄のままなので、自分で入力してください。
プロジェクトの .vscode/mcp.json に貼り付けます
{
"servers": {
"agent-safety": {
"type": "http",
"url": "https://nightshift-x402.nightshift-labs.workers.dev/mcp"
}
}
}ブラウザがアプリを開いてよいか確認し、そのあとアプリが設定を表示して確認を求めます。キーの値は空欄のままなので、自分で入力してください。
ChatGPTがつなげるのは、インターネット上のサーバーだけです:
https://nightshift-x402.nightshift-labs.workers.dev/mcpメニューの名前は、プランや時期によって少し違うことがあります。
選んだアプリは、この端末のCookieに保存されます。アカウントは不要です。
この設定は、作者のレジストリ登録情報から作成しています。READMEと違う場合は、READMEに従ってください。
ツールの名前と説明は、サーバーが2026年11月7日に返したそのままの内容です。書いたのは作者で、私たちではありません。プレーンテキストとして表示しています。
base_token_checkBase token safety pre-check: name/symbol/decimals/supply, owner and renounce status, proxy implementation, privileged functions found in bytecode (mint, blacklist, pause, fee setters, upgrade) and a heuristic risk level. Call before buying or accepting an unknown token on Base. P
base_token_priceLive USD price of any ERC-20 token on Base from on-chain DEX quotes (Uniswap v3 0.05/0.3/1% pools and Aerodrome, against USDC and WETH; WETH converted with Chainlink ETH/USD). Returns the best executable route, every route's price, the price impact of selling $1,000, and flags fo
base_balanceBase wallet balances: native ETH and USDC for any address, with the block number they were read at. Price: $0.005 USDC on Base per call (x402).
base_txDecode a Base transaction: status, block time, from/to, ETH value, fee, method selector and every ERC-20 transfer with symbol and human amount. Flags fake look-alike tokens (address-poisoning, e.g. a fake USDC with homoglyph characters). Price: $0.005 USDC on Base per call (x402)
domain_email_checkDomain DNS and email-security check: A/AAAA, NS, MX (incl. null MX), SPF, DMARC policy, CAA, plus a list of issues and a 0-100 email security score. Use before sending email to or trusting a domain. Price: $0.005 USDC on Base per call (x402).
evm_decode_calldataDecode EVM transaction calldata before signing: finds the function signature (signature DB, verified by re-encoding to reject selector collisions), decodes all arguments, expands multicall batches, and warns about unlimited token approvals, approve-all-NFTs, permits, ownership ch
evm_typed_data_checkCheck an EIP-712 signature request BEFORE signing (the JSON passed to eth_signTypedData_v4): detects ERC-2612 Permit, DAI permit, Uniswap Permit2 (allowance + transfer) and Seaport orders, explains in one line what the signature grants, and flags drainer patterns: unlimited allow
base_gasBase gas snapshot: gas price, base fee, priority fee, 10-block base-fee trend, ETH/USD (Chainlink) and estimated USD cost of an ETH transfer, ERC-20 transfer, swap and contract deploy right now. Price: $0.005 USDC on Base per call (x402).
ens_resolveResolve ENS and Basenames (name.eth, name.base.eth): name → address, or address → primary name with forward verification, plus text records (avatar, description, url, twitter, github, email). Price: $0.005 USDC on Base per call (x402).
domain_whoisDomain registration lookup (RDAP, the official WHOIS successor): registration date and age in days, expiry, registrar and its abuse email, EPP status, nameservers, DNSSEC, and flags for brand-new (<30 days) or young domains, punycode/IDN names and expiring domains. Use to vet lin
domain_dnsDNS lookup in one call: A, AAAA, CNAME, MX, TXT, NS and CAA records with TTLs (or just the types you ask for), NXDOMAIN status, DNSSEC validation, plus parsed hints: SPF record, CAA certificate issuers and which services the domain is verified with (TXT verification tokens). Reso
web_security_headersWebsite security-headers audit: follows redirects (SSRF-guarded) and grades the final page A–F on HSTS, Content-Security-Policy (script-src unsafe-inline/eval/wildcards), clickjacking protection, nosniff, Referrer-Policy, Permissions-Policy, COOP, version-leaking Server/X-Powered
base_portfolioBase wallet portfolio: ETH plus 12 major Base tokens (USDC, USDbC, DAI, EURC, WETH, cbETH, wstETH, cbBTC, AERO, DEGEN, VIRTUAL, BRETT) with non-zero balances, USD values from Chainlink ETH/USD and BTC/USD feeds, and a total. Price: $0.01 USDC on Base per call (x402).
x402_preflightx402 seller preflight: check a paid endpoint BEFORE paying. Probes it unpaid, parses the 402 (v2 header or v1 body) and checks each option: scheme, network, asset is real USDC on Base, EIP-712 name/version match on-chain, payTo not a burn address, amount, timeout, discovery metad
wallet_screenWallet / counterparty screen before you send funds or accept a payer: OFAC SDN sanctioned-address check (EVM list, refreshed from the 0xB10C OFAC dataset), address type (EOA, EIP-7702 delegated, contract, token contract), Base and Ethereum tx counts, ETH/USDC balances on Base, bu
web_brandBrand kit from a website: site name, logo candidates (JSON-LD logo, header/home-link image, inline SVG logo, apple-touch-icon/favicons, og:image), theme-color, CSS brand variables (--primary/--brand/--accent), dominant colors ranked by CSS frequency (non-neutral first), fonts (Go
web_link_checkLink / URL phishing pre-check before an agent opens, clicks or forwards a link: brand look-alikes (typosquats, homoglyphs, brand in subdomain), punycode and mixed-script hosts, credentials-in-URL tricks, high-abuse TLDs, domain age via RDAP (new domains flagged), DNS resolution a
web_extractFetch any public web page and return clean Markdown of the main content plus title, meta description, word count and absolute links. Strips scripts, navigation and boilerplate. Good for feeding pages to an LLM. Price: $0.005 USDC on Base per call (x402).
誰でも見られる情報をチェックしており、コードは読んでいません。当てはまらない項目は数に入れていません。 · 2026年11月8日にチェック
レジストリ名はドメイン nightshift-x402.nightshift-labs.workers.dev で確認済みです(レジストリがドメインの所有を確認しています)
このリポジトリはまだGitHubから読み取っていません
このリポジトリはまだGitHubから読み取っていません
357ミリ秒で応答(HTTP 200)
サインイン不要
18件のツールの説明を読み、AIへの隠れた指示は見つかりませんでした
レジストリでこのカテゴリにある有効なすべてのサーバーと比較しています。スターは、公開者がリポジトリの所有者である場合だけ数えます。
当てはまる基本チェック3項目のうち3項目に合格しました。コードは読んでいません。キーやトークンを追加する前に、サーバーがどんなアクセスを求めているかを確認し、必要な権限だけを持つキーを使ってください。
レジストリには必須のキーは載っていません。ただし、最初に使うときにサインインを求めるサーバーもあります。
作者のクラウドで動きます。インストール不要でインターネット経由でつながりますが、送った内容は作者のサーバーを通ります。
GitHubリポジトリの最終更新は–、最新バージョン(1.0.1)がレジストリに届いたのは一昨日です。
Claude Desktop、Claude Code、Cursor、VS CodeなどのMCP対応アプリで使えます。URLでつながるので、リモートMCPサーバーに対応したアプリ(開発者モードのChatGPTなど)でも使えます。
同じカテゴリには:MCP Safety Warden, EchelonGraph CVE & Exposure, VMware NSX Security
同じカテゴリで、ほかの作者が作ったサーバー。スターの多い順。
カードの見方:↓ 週あたりのダウンロードi★ GitHubスターi3つの柱:レビュー · チェック · 利用状況i更新=最新バージョンをレジストリに公開した日i
MCP proxy adding security scanning, behavioral profiling, risk gating, and safe tool call execution.
CVE, KEV, EPSS, SBOM and advisory lookups; per-CVE exposure from Shodan data (© Shodan). Keyless.
VMware NSX security: DFW policies and exclusions, groups, tags, Traceflow, IDPS — 22 MCP tools.
作者のリポジトリから書かれたとおりにコピーしたものです。PopNx MCPは内容を確認・推奨していません。HTML、画像、スクリプトは取り除いています。リンクはこのサイトの外へ移動します。
Pay-per-call HTTP API and remote MCP server for agents. No account or API key: each call is paid with an x402 micropayment ($0.003 per call in USDC on Base). Run by Nightshift Labs, an autonomous AI-agent-run business (the code and docs were written by an AI agent).
/, /openapi.json, /.well-known/x402, /llms.txt)https://nightshift-x402.nightshift-labs.workers.dev/mcp — tools are paid per call via x402 (@x402/mcp)/samples shows real example responses for every endpoint| Route | Price | What it does |
|---|---|---|
GET /v1/base/token-check | $0.003 | Base token safety pre-check: name/symbol/decimals/supply, owner and renounce status, proxy implementation, privileged functions found in bytecode (mint, blac… |
GET /v1/base/token-price | $0.003 | Live USD price of any ERC-20 token on Base from on-chain DEX quotes (Uniswap v3 0.05/0.3/1% pools and Aerodrome, against USDC and WETH; WETH converted with C… |
GET /v1/base/balance | $0.003 | Base wallet balances: native ETH and USDC for any address, with the block number they were read at. |
GET /v1/base/tx | $0.003 | Decode a Base transaction: status, block time, from/to, ETH value, fee, method selector and every ERC-20 transfer with symbol and human amount |
GET /v1/domain/email-check | $0.003 | Domain DNS and email-security check: A/AAAA, NS, MX (incl |
GET /v1/evm/decode-calldata | $0.003 | Decode EVM transaction calldata before signing: finds the function signature (signature DB, verified by re-encoding to reject selector collisions), decodes a… |
POST /v1/evm/typed-data-check | $0.003 | Check an EIP-712 signature request BEFORE signing (the JSON passed to eth_signTypedData_v4): detects ERC-2612 Permit, DAI permit, Uniswap Permit2 (allowance … |
GET /v1/base/gas | $0.003 | Base gas snapshot: gas price, base fee, priority fee, 10-block base-fee trend, ETH/USD (Chainlink) and estimated USD cost of an ETH transfer, ERC-20 transfer… |
GET /v1/ens/resolve | $0.003 | Resolve ENS and Basenames (name.eth, name.base.eth): name → address, or address → primary name with forward verification, plus text records (avatar, descript… |
GET /v1/domain/whois | $0.003 | Domain registration lookup (RDAP, the official WHOIS successor): registration date and age in days, expiry, registrar and its abuse email, EPP status, namese… |
GET /v1/domain/dns | $0.003 | DNS lookup in one call: A, AAAA, CNAME, MX, TXT, NS and CAA records with TTLs (or just the types you ask for), NXDOMAIN status, DNSSEC validation, plus parse… |
GET /v1/domain/dns-batch | $0.003 | DNS lookup for up to 12 domains in ONE paid call: A, AAAA, MX and NS by default (or the types you ask for), NXDOMAIN status, DNSSEC validation and SPF/verifi… |
GET /v1/domain/ssl | $0.003 | TLS/SSL certificate check for a host: live verified HTTPS handshake (reachable, status, HSTS) plus the newest valid certificate from public Certificate Trans… |
GET /v1/domain/overview | $0.003 | One-call domain overview: registration (RDAP age, expiry, registrar, DNSSEC), DNS (A/AAAA/NS/MX/CAA), email security (SPF, DMARC policy, 0-100 score, issues)… |
GET /v1/web/security-headers | $0.003 | Website security-headers audit: follows redirects (SSRF-guarded) and grades the final page A–F on HSTS, Content-Security-Policy (script-src unsafe-inline/eva… |
GET /v1/base/portfolio | $0.003 | Base wallet portfolio: ETH plus 12 major Base tokens (USDC, USDbC, DAI, EURC, WETH, cbETH, wstETH, cbBTC, AERO, DEGEN, VIRTUAL, BRETT) with non-zero balances… |
GET /v1/x402/preflight | $0.003 | x402 seller preflight: check a paid endpoint BEFORE paying |
GET /v1/wallet/screen | $0.003 | Wallet / counterparty screen before you send funds or accept a payer: OFAC SDN sanctioned-address check (EVM list, refreshed from the 0xB10C OFAC dataset), a… |
GET /v1/web/brand | $0.003 | Brand kit from a website: site name, logo candidates (JSON-LD logo, header/home-link image, inline SVG logo, apple-touch-icon/favicons, og:image), theme-colo… |
GET /v1/web/link-check | $0.003 | Link / URL phishing pre-check before an agent opens, clicks or forwards a link: brand look-alikes (typosquats, homoglyphs, brand in subdomain), punycode and … |
GET /v1/web/extract | $0.003 | Fetch any public web page and return clean Markdown of the main content plus title, meta description, word count and absolute links |
Any x402 client works. TypeScript with the official SDK:
import { x402Client, x402HTTPClient } from "@x402/core/client";
import { registerExactEvmScheme } from "@x402/evm/exact/client"; import { privateKeyToAccount } from "viem/accounts";
const client = new x402Client(); registerExactEvmScheme(client, { signer: privateKeyToAccount(process.env.AGENT_KEY) }); const http = new x402HTTPClient(client);
const url = "https://nightshift-x402.nightshift-labs.workers.dev/v1/base/gas"; const r1 = await fetch(url); // 402 + payment requirements const req = http.getPaymentRequiredResponse(n => r1.headers.get(n), await r1.json()); const headers = http.encodePaymentSignatureHeader(await http.createPaymentPayload(req)); console.log(await (await fetch(url, { headers })).json()); // paid response
The payer only needs USDC on Base (EIP-3009 authorization; the facilitator pays gas).
MCP clients: add the remote server URL above. It is listed in the official MCP Registry as dev.workers.nightshift-labs.nightshift-x402/agent-safety (see mcp-registry/server.json).
npm ci
PAY_TO=0xYourAddress PORT=8402 node server.mjs # Node (PayAI facilitator by default)
Optional: CDP_API_KEY_ID / CDP_API_KEY_SECRET (Coinbase CDP facilitator), BASE_RPC_URL (keyed RPC; free public RPCs are used as fallback). Local testing without payments works only on testnet: NETWORK=eip155:84532 TEST_NO_PAY=1.
Code layout: app.mjs (Hono app + route table + x402 middleware), lib.mjs (chain/DNS/web logic, SSRF guard), mcp.mjs (MCP server), preflight.mjs, wallet.mjs, brand.mjs, server.mjs (Node), worker.mjs (Workers).
Heuristic checks (token risk, phishing, wallet screen) reduce risk but are not guarantees; responses state what was checked. Licence: MIT.