MCP server

Agent Preflight: OFAC, DNS, Email Auth, Domain, Email & URL

dev.workers.sdnscreen.sdn-screen-x402/agent-preflight

Checked 26 Oct 2026, 08:29 UTC · Connected to it and listed its tools

$0.01/call via x402: OFAC wallet screen, DNS, email auth, domain age, email verify, URL unshorten.

Working at last checkAbout 1,642 tokens per request once connected6 tools

Website

https://sdn-screen-x402.sdnscreen.workers.dev/mcp

At a glance

Type: MCP server
Publisher: Not verified
Status: Working at last check
Tools: 6
Token cost: About 1,642 tokens per request
Sets up in: Claude Code, Claude Desktop, Codex, Gemini CLI, Cursor, VS Code, Antigravity, ChatGPT, OpenAI API, Grok
Last checked: 26 Oct 2026, 08:29 UTC

Connect it to your agent

Add to Cursor Add to VS Code VS Code Insiders

Opens the app, which shows the server and asks you to confirm. For other apps, copy the setup below.

Claude Code

claude mcp add --transport http agent-preflight https://sdn-screen-x402.sdnscreen.workers.dev/mcp

Claude Desktop

Settings → Connectors → Add custom connector, and paste the URL.

Codex (config.toml)

[mcp_servers.agent-preflight]
url = "https://sdn-screen-x402.sdnscreen.workers.dev/mcp"

Gemini CLI

{"mcpServers":{"agent-preflight":{"httpUrl":"https://sdn-screen-x402.sdnscreen.workers.dev/mcp"}}}

Cursor

{"mcpServers":{"agent-preflight":{"url":"https://sdn-screen-x402.sdnscreen.workers.dev/mcp"}}}

VS Code

{"servers":{"agent-preflight":{"type":"http","url":"https://sdn-screen-x402.sdnscreen.workers.dev/mcp"}}}

Antigravity

agy mcp add agent-preflight https://sdn-screen-x402.sdnscreen.workers.dev/mcp

ChatGPT

Settings → Apps & Connectors → Advanced settings: turn on Developer mode, then Create a connector and paste the URL. Which plans can do this varies.

OpenAI API (Responses tools)

{"type":"mcp","server_label":"agent-preflight","server_url":"https://sdn-screen-x402.sdnscreen.workers.dev/mcp","require_approval":"always"}

Grok (xAI API tools)

{"type":"mcp","server_label":"agent-preflight","server_url":"https://sdn-screen-x402.sdnscreen.workers.dev/mcp"}

Tools

dns_lookup ~317 tokens
Resolves live DNS records for any domain or hostname via 1.1.1.1: A, AAAA, CNAME, MX, NS, TXT, SOA and CAA in one call (type=ALL), or a single type incl. SRV, PTR, DS, DNSKEY, HTTPS. Clean JSON with TTLs, NXDOMAIN flag and DNSSEC-authenticated bit. A URL or email address is reduced to its host. Use
email_auth_check ~318 tokens
Checks a domain's email authentication: parses SPF (+all, ?all, multiple records, over 10 DNS lookups), DMARC (p, sp, pct, rua), DKIM keys (your selector or 15 common ones) and MX, then returns an A-F grade, 0-100 score and coded issues (spf_missing, dmarc_p_none, ...). Use when an agent must judge
email_mx_verify ~243 tokens
Checks an email address without sending mail or opening SMTP: syntax, domain exists, MX records (or RFC 5321 A/AAAA fallback), RFC 7505 null MX, MX host resolves, disposable-domain list (~9.9k domains), role account (info@, support@) and free provider. Verdict deliverable_domain, risky, undeliverabl
ofac_wallet_screen ~245 tokens
Screens a crypto wallet address (EVM, BTC, TRON, SOL, XMR and every other chain OFAC lists) against all Digital Currency Addresses on the US Treasury OFAC SDN list. Returns sanctioned true/false, verdict block/no_match, SDN entity name, sdnType, programs and the list publish date. Use when an agent
url_unshorten ~261 tokens
Follows a URL's HTTP redirects hop by hop (max 10, page bodies never read) and returns the final URL, status, the full chain and heuristic safety flags: shortener_used, cross_domain_redirect, https_downgrade, ip_address_host, punycode_host, userinfo_in_url, high_abuse_tld, credential_keyword_after_r
whois_domain_age ~258 tokens
Looks up a domain in its registry's RDAP server (the ICANN successor to WHOIS, found via the IANA bootstrap): registration date, age in days/years, newlyRegistered (<30 days), expiry, last change, registrar name + IANA ID, EPP status, nameservers and DNSSEC. No personal contact data. Use when an age

Browse

Related MCP servers

Stablecoin Gateways
Pay-per-call compliance data: OFAC sanctions, merchant check, LEI, SEC, WHOIS, FX. x402 in USDC/XRP
Agent Utility Suite (x402)
SEC red-flag alerts & company dossiers, token risk, wallet checks, x402 preflight, scraping, OFAC.
draconic21 Daily Agent Signal + x402 Data Tools
Daily Agent Signal: x402 research; coverage varies. Free preview, $0.03 USDC on Base. SEC/OFAC.
SpendPreflight
Trust and verification tools for stablecoin payments, for AI agents and the people who run them.
Quant Agent Shop
Search, filings, sanctions, company, domain, email, SEO and weather tools, paid per call over x402.
PG1 Sovereign Threat Intelligence
Preflight for AI agents, signed: one call; wallet, domain, IP abuse, package checks and CVEs.
Email DNS Preflight x402
Paid email, DNS, mail-security and RDAP intelligence for agents over x402.
SPORE x402 Attestation
Signed x402 attestations and bounty-packet preflight checks, paid per call in USDC on Base.

Badge for your README

[![AptLynx](https://aptlynx.net/badge/dev.workers.sdnscreen.sdn-screen-x402/agent-preflight.svg)](https://aptlynx.net/servers/dev.workers.sdnscreen.sdn-screen-x402/agent-preflight)

Listing text is written by the maker; AptLynx lists tools and does not vouch for them. Find another tool · Browse by topic · For agents