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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "email-auth-check": {
      "type": "http",
      "url": "https://email-auth-check.quietworklabs.workers.dev/mcp"
    }
  }
}

claude mcp add --transport http email-auth-check https://email-auth-check.quietworklabs.workers.dev/mcp

[mcp_servers.email-auth-check]
url = "https://email-auth-check.quietworklabs.workers.dev/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "email-auth-check": {
      "type": "remote",
      "url": "https://email-auth-check.quietworklabs.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "email-auth-check": {
      "type": "http",
      "url": "https://email-auth-check.quietworklabs.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=email-auth-check&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZW1haWwtYXV0aC1jaGVjay5xdWlldHdvcmtsYWJzLndvcmtlcnMuZGV2L21jcCJ9"
}

{
  "servers": {
    "email-auth-check": {
      "type": "http",
      "url": "https://email-auth-check.quietworklabs.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "email-auth-check": {
      "httpUrl": "https://email-auth-check.quietworklabs.workers.dev/mcp"
    }
  }
}

extensions:
  "email-auth-check":
    enabled: true
    name: "email-auth-check"
    type: streamable_http
    uri: "https://email-auth-check.quietworklabs.workers.dev/mcp"
    timeout: 300

Quality 81 / 100new

protocol75 · weight 25

warn
protocol.modernnewest supported version is 2025-11-25; 2026-07-28 not supported, older versions are deprecated until 2027-07-28
n/a
protocol.statelessonly applies to 2026-07-28 servers
pass
protocol.transportstreamable HTTP
n/a
protocol.list_ttlonly applies to 2026-07-28 servers

authorizationn/a · weight 15

n/a
auth.prm, auth.as_metadata, auth.cimdno remote uses OAuth
n/a
auth.secret_in_urlno templated URL

tool hygiene86 · weight 30

pass
tools.descriptionsevery tool has a description
pass
tools.description_lengthdescriptions are concise
pass
tools.schemasevery tool has an object input schema
pass
tools.annotations4 of 4 tools declare readOnlyHint or destructiveHint
fail
tools.directory_hintsno tool declares all four of readOnlyHint, destructiveHint, idempotentHint and openWorldHint; missing: dmarc_check (destructiveHint, idempotentHint); domain_expiry (destructiveHint, idempotentHint); email_auth_report (destructiveHint, idempotentHint); …
pass
tools.token_costabout 620 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stabilityn/a · weight 15

n/a
stability.changes, stability.rug_pulltool history recorded for 2 of the 7 days needed

dependenciesn/a · weight 15

n/a
deps.known_vulns, deps.mcp_sdk_version, deps.resolvableno npm or PyPI package

4 tools, about 620 tokens to load them all · tool set 835d6713550d · checked 2026-10-20 19:42 UTC

Tool changes

No tool definition changes recorded. A server's first observation is its baseline; later probes record what changes.

Checks run on what our credential-free, read-only probes observe; tools are never called and no code audit is performed. How it is computed.

Trust 81 / 100

no-repository

provenance55

liveness96

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-90% +updated-3d-ago -no-repository

Derived from observable signals (official registry feed and our own credential-free probes); no code audit performed. How it is computed.

Endpoints

remote	auth	reachable	uptime 30d	p50	protocol	last ok
`https://email-auth-check.quietworklabs.workers.dev/mcp` streamable-http	none	yes	90%	218 ms	2025-11-25	2026-10-20

Tools (4)

`dmarc_check`read-only	Finds and validates a domain's DMARC record (falls back to the organizational domain): policy, subdomain policy, pct, alignment modes, rua/ruf, and whether external report domains authorized reports (RFC 7489 7.1). Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.
`domain_expiry`read-only	Registration data for a domain from the registry's RDAP server (IANA bootstrap): registrar, created/updated/expiry dates, days until expiry with ok/expiring_soon/expired status, EPP status codes, nameservers and DNSSEC. Works for gTLDs and ccTLDs that publish RDAP. Deterministic, no AI. Price: $0.002 USDC per call via x402 (Base); the first 5 calls per day per client are free.
`email_auth_report`read-only	Full email-auth report for a domain: SPF (recursive 10-lookup count, void lookups, +all/?all, terms after all), DMARC (policy, pct, alignment, rua authorization), DKIM (keys and RSA key bits at common selectors or your own via selectors=), MX/null MX, MTA-STS policy, TLS-RPT, BIMI, and a Gmail/Yahoo/Outlook bulk-sender readiness verdict. Deterministic DNS-over-HTTPS, no AI. Price: $0.003 USDC per call via x402 (Base); the first 5 calls per day per client are free.
`spf_lookup_count`read-only	Expands a domain's SPF record recursively (include/redirect) like a receiver does and counts DNS-querying terms against the RFC 7208 limit of 10 and void lookups against the limit of 2. Returns per-term lookup costs, problems (permerror causes) and warnings. Deterministic, no AI. Price: $0.001 USDC per call via x402 (Base); the first 5 calls per day per client are free.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.workers.quietworklabs.email-auth-check/email-auth-check",
  "title": "Email Auth Checker",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://email-auth-check.quietworklabs.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://email-auth-check.quietworklabs.workers.dev/",
  "description": "SPF, DKIM, DMARC, MTA-STS and domain-expiry checks for any domain, with SPF lookup counts."
}