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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "domaincanary": {
      "type": "http",
      "url": "https://domaincanary.com/mcp"
    }
  }
}

claude mcp add --transport http domaincanary https://domaincanary.com/mcp

[mcp_servers.domaincanary]
url = "https://domaincanary.com/mcp"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "domaincanary": {
      "type": "remote",
      "url": "https://domaincanary.com/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "domaincanary": {
      "type": "http",
      "url": "https://domaincanary.com/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=domaincanary&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vZG9tYWluY2FuYXJ5LmNvbS9tY3AifQ%3D%3D"
}

{
  "servers": {
    "domaincanary": {
      "type": "http",
      "url": "https://domaincanary.com/mcp"
    }
  }
}

{
  "mcpServers": {
    "domaincanary": {
      "httpUrl": "https://domaincanary.com/mcp"
    }
  }
}

extensions:
  "domaincanary":
    enabled: true
    name: "domaincanary"
    type: streamable_http
    uri: "https://domaincanary.com/mcp"
    timeout: 300

Quality 96 / 100strong

protocol88 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
warn
protocol.list_ttltools/list declares ttlMs 0, so clients re-fetch it on every use

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 hygiene100 · 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
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 1,217 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name

dependenciesn/a · weight 15

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

4 tools, about 1,217 tokens to load them all · tool set e80a5c92a392 · checked 2026-10-20 11:08 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 82 / 100

no-repository

provenance55

liveness99

freshness100

hygiene80

+dns-namespace +website +reachable +uptime-99% +updated-17d-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://domaincanary.com/mcp` streamable-http	none	yes	99%	202 ms	2026-07-28	2026-10-20

Tools (4)

`analyze_report`read-only	Use this when someone has a DMARC aggregate report and wants to know which senders passed and which failed. The report is the XML, .gz or .zip file that receivers such as Google and Yahoo email to the address in a domain's rua tag. In ChatGPT, pass the uploaded file. Elsewhere, pass the report XML as text. Returns totals per report and each sending IP address with its SPF, DKIM and DMARC results. The result gives a next step for the report's domain and a link to a live check of that domain's DNS records. Nothing from the report is stored.
`build_spf`read-only	Use this when someone lists the services that send their email and wants the SPF record to publish, or wants a sender added to the SPF record they already have. Takes provider names such as Google Workspace or Mailchimp, include terms such as include:spf.example.com, or IP addresses, and returns one merged record with its count of DNS lookups against the limit of ten. Pass the domain when you know it, so the result includes the senders already in its published record.
`check_domain`read-only	Use this when someone asks whether a domain's email authentication is set up correctly, why mail from a domain fails DMARC, SPF or DKIM, or which DNS records to publish for it. Reads the domain's live DMARC, SPF and DKIM records and returns what is wrong with each, plus the records to add or change. Pass a DKIM selector when you know it. Without one, common selectors are tried. Takes a domain name only, not a mailbox address or an IP address.
`explain_bounce`read-only	Use this when someone pastes a bounce message, an SMTP reply such as 550 5.7.26, or an Authentication-Results header and asks what it means or how to fix it. Returns what the receiving server refused, what to change, when it clears, and the page that explains it. Works from the pasted text alone and reads no DNS records.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "com.domaincanary/mcp",
  "title": "DomainCanary",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://domaincanary.com/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "1.0.0",
  "websiteUrl": "https://domaincanary.com/guides/check-your-domain-from-chatgpt-or-claude",
  "description": "Check a domain's DMARC, SPF and DKIM, build SPF records, explain bounces, read DMARC reports."
}