x402 Domain Lookup & DNS Email Auth

dev.workers.microtools-x402.x402-dns-auth-checkerPublished by x402-dns-auth-checker.microtools-x402.workers.devOfficial publisherv0.3.0Updated Nov 7, 2026

Domain lookup (DNS records + RDAP registrar/age/expiry), bulk, and SPF/DKIM/DMARC audit via x402.

VerifiedStreamable HTTPWeb executableDeveloper ToolsSecurity & Monitoring

Overview

x402 Domain Lookup & DNS Email Auth's hosted MCP server (x402-dns-auth-checker.microtools-x402.workers.dev), published by x402-dns-auth-checker.microtools-x402.workers.dev; no sign-in required; Streamable HTTP; 4 tools.

No AI overview yet: these facts come from the registry entry and the server itself.

Publisher
x402-dns-auth-checker.microtools-x402.workers.dev
Endpoint
x402-dns-auth-checker.microtools-x402.workers.dev
Last checked

Installation

In SourceWeft

  1. Open x402 Domain Lookup & DNS Email Auth in the dashboard and add it to a workspace.
  2. Enable the server for the chats that should use its tools.

Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.

Use with an agent

Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.

Read https://sourceweft.com/mcp/dev.workers.microtools-x402.x402-dns-auth-checker%2Fdns-auth-checker/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.

Read the install guide the agent follows

Other MCP clients

Add this to your client's mcpServers config.

{
  "mcpServers": {
    "x402-domain-lookup-dns-email-auth": {
      "type": "http",
      "url": "https://x402-dns-auth-checker.microtools-x402.workers.dev/mcp"
    }
  }
}

README

This repository has no README.

Tools

4

domain_auth_check

Audit a domain's email authentication DNS: SPF (record count, all qualifier, includes, ~DNS lookups vs 10 limit), DMARC (p, sp, pct, rua/ruf, adkim/aspf), DKIM (common or given selectors, key type and length), MX, plus BIMI / MTA-STS / TLS-RPT presence. Returns per-check status, issues, recommendations, score 0-100 and grade A-F. Costs $0.003 USDC per call via x402.

Parametersdomainrequiredselectors

domain_lookup

Domain lookup: DNS records (A, AAAA, MX, NS, TXT, CNAME, SOA, CAA via Cloudflare DNS-over-HTTPS, DNSSEC AD flag) plus registration data from the registry's RDAP server (IANA bootstrap): registrar + IANA id, created / updated / expiry dates, age in days, days to expiry, EPP status, nameservers, DNSSEC delegation, registrar abuse contact. No registrant personal data. Charged only when DNS answered (NOERROR) or the registry RDAP returned the registration. TLDs without RDAP (e.g. .de, .io) still succeed with DNS records and rdap_available:false. NXDOMAIN with no registration (404 DOMAIN_NOT_FOUND), upstream failure (502) and bad input (400) are not charged. Costs $0.003 USDC per call via x402.

Parametersdomainrequired

domain_lookup_bulk

Bulk domain lookup: the same DNS + RDAP registration report as domain_lookup for up to 10 domains in one call (deduplicated). Per-domain errors are returned inline. Charged once ($0.01 USDC via x402) only if at least one domain succeeded; otherwise not charged.

Parametersdomainsrequired

health

Free health check. Returns service status, price and network.

Takes no parameters.

Version history

3
  1. v0.3.0LatestNov 3, 2026
  2. v0.1.2Oct 20, 2026
  3. v0.1.1Oct 17, 2026

Score

72% of the applicable checks met

How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.

  • Reached in the last 30 daysRequired25 pts
  • Auth declaredRequired10 pts
  • Tools listedRequired15 pts
  • DescriptionRequired15 pts
  • Logo10 pts

    Publish an icon in the registry entry.

  • Documentation15 pts

    Declare a GitHub repository with a README, or serve resource_documentation in the OAuth protected-resource metadata.

  • LicenseNot applicable

    A hosted service is used under its provider's terms, so no license is expected here. This check is left out of the percentage.