Click on "Deploy Server".
Wait a few minutes for the server to deploy. Once ready, it will show a "Started" state.
In the chat, type @ followed by the MCP server name and your instructions, e.g., "@x402 DNS Auth Checker check the email auth DNS setup for google.com"
That's it! The server will respond to your query, and you can continue using it as needed.
Here is a step-by-step guide with screenshots.
Remote MCP server (Streamable HTTP at /mcp) that audits a domain's email-authentication DNS.
domain_auth_check (paid, $0.003 USDC per call via x402, Base mainnet eip155:8453, USDC 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913): input domain, optional selectors[] (DKIM). Returns SPF (record count, all qualifier, includes, ~DNS lookups vs 10 limit, void includes), DMARC (p/sp/pct/rua/ruf/alignment), DKIM (selector probing, key type/bits, revoked/testing), MX (incl. null MX), BIMI / MTA-STS / TLS-RPT presence, issues, recommendations, score 0-100, grade A-F.
health (free): status, price, network.
Related MCP server: domain-security-mcp-server
wrangler.jsonc vars: X402_NETWORK, X402_FACILITATOR_URL. Secret: MCP_ADDRESS (or X402_RECIPIENT) = payout address (see .dev.vars.example).
export PATH=~/.local/node22/bin:$PATH
npm install
npm run typecheck # tsc --noEmit
npm run smoke # live DNS checks (google.com, github.com, example.com, NXDOMAIN, invalid)
npm run deploy:dry # wrangler deploy --dry-run
npm run dev # local at http://localhost:8787/mcp
npm run deploy # set MCP_ADDRESS secret first: wrangler secret put MCP_ADDRESSThis server cannot be deployed
Check a domain's email authentication: SPF, DKIM, DMARC, BIMI, MX, MTA-STS, TLS-RPT. Score + fixes.
Complete domain email-auth audit in one call: SPF with RFC 7208 lookup counting, DKIM selector pr...
Check if a domain can be email-spoofed: SPF, DMARC, DKIM, MX graded from public DNS. Authless.
Use when email lands in spam: audits SPF, DKIM, DMARC, MX and returns the DNS records to fix it.