MCP Safety Warden
MCP proxy adding security scanning, behavioral profiling, risk gating, and safe tool call execution.
Descripción del creador (original en inglés)
Paid x402 pre-checks for agents: phishing links, Base tokens, EIP-712 permits, calldata, DNS.
Estos tres nunca se combinan en una sola puntuación: las opiniones, las mediciones y la popularidad son cosas distintas.
Todavía no escribimos un resumen sencillo para este. Abajo están los datos que leímos del registro.
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Funciona en Claude para web, escritorio y móvil:
https://nightshift-x402.nightshift-labs.workers.dev/mcpEjecuta esto en tu terminal
claude mcp add --transport http agent-safety https://nightshift-x402.nightshift-labs.workers.dev/mcpPégalo en .cursor/mcp.json de tu proyecto, o en ~/.cursor/mcp.json
{
"mcpServers": {
"agent-safety": {
"url": "https://nightshift-x402.nightshift-labs.workers.dev/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
Pégalo en .vscode/mcp.json de tu proyecto
{
"servers": {
"agent-safety": {
"type": "http",
"url": "https://nightshift-x402.nightshift-labs.workers.dev/mcp"
}
}
}Tu navegador te pide permiso para abrir la app; luego la app muestra la configuración y te pide confirmar. Los valores de las claves quedan vacíos para que los completes tú.
ChatGPT solo se conecta a servidores en internet:
https://nightshift-x402.nightshift-labs.workers.dev/mcpLos nombres de los menús pueden variar un poco según el plan y con el tiempo.
Tu elección se guarda en una cookie en este dispositivo; no necesitas cuenta.
Esta configuración se genera a partir de la ficha del creador en el registro. Si el README dice otra cosa, sigue el README.
Nombres y descripciones de las herramientas tal como los informó el servidor el 7 nov 2026. Los escribió el creador, no nosotros; los mostramos como texto sin formato.
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).
Revisamos información que cualquiera puede ver; no hemos leído el código. Las revisiones que no aplican no se cuentan. · Revisado el 8 nov 2026
El nombre en el registro se verificó con el dominio nightshift-x402.nightshift-labs.workers.dev (el registro comprueba quién es dueño del dominio)
Todavía no hemos leído este repo en GitHub
Todavía no hemos leído este repo en GitHub
Respondió en 357 ms (HTTP 200)
No hace falta iniciar sesión
Leímos 18 descripciones de herramientas y no encontramos instrucciones ocultas para la IA
Comparado con todos los servidores activos de esta categoría en el registro. Las estrellas solo cuentan cuando quien lo publica es dueño del repo.
Superó 3 de 3 revisiones básicas aplicables. No hemos leído el código. Antes de agregar una clave o un token, revisa qué acceso pide el servidor y usa una clave que tenga solo los permisos que necesitas.
El registro no indica ninguna clave obligatoria, aunque algunos servidores te piden iniciar sesión la primera vez que los usas.
Se ejecuta en la nube del creador. Te conectas por internet sin instalar nada, pero lo que envías pasa por los servidores del creador.
El repo de GitHub cambió por última vez –, y la última versión (1.0.1) llegó al registro anteayer.
Las apps compatibles con MCP, como Claude Desktop, Claude Code, Cursor y VS Code. Se conecta por URL, así que también funcionan las apps que aceptan servidores MCP remotos, como ChatGPT en modo desarrollador.
En la misma categoría: MCP Safety Warden, EchelonGraph CVE & Exposure, VMware NSX Security
Servidores de la misma categoría hechos por otros creadores, ordenados por estrellas.
Cómo leer una tarjeta:↓ Descargas por semanai★ Estrellas de GitHubiTres pilares: reseñas · revisiones · usoiActualizado = fecha en que se publicó la última versión en el registroi
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.
Copiado tal cual del repo del creador. PopNx MCP no lo ha revisado ni lo respalda. Se quitaron HTML, imágenes y scripts. Los enlaces llevan fuera de este sitio.
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.