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8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "certguard": {
      "type": "http",
      "url": "https://certguard.mike-tusa.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${CERTGUARD_TOKEN}"
      }
    }
  }
}

claude mcp add --transport http certguard https://certguard.mike-tusa.workers.dev/mcp --header "Authorization: Bearer ${CERTGUARD_TOKEN}"

[mcp_servers.certguard]
url = "https://certguard.mike-tusa.workers.dev/mcp"
bearer_token_env_var = "CERTGUARD_TOKEN"

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "certguard": {
      "type": "remote",
      "url": "https://certguard.mike-tusa.workers.dev/mcp",
      "enabled": true,
      "headers": {
        "Authorization": "Bearer {env:CERTGUARD_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "certguard": {
      "type": "http",
      "url": "https://certguard.mike-tusa.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${CERTGUARD_TOKEN}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=certguard&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY2VydGd1YXJkLm1pa2UtdHVzYS53b3JrZXJzLmRldi9tY3AiLCJoZWFkZXJzIjp7IkF1dGhvcml6YXRpb24iOiJCZWFyZXIgJHtDRVJUR1VBUkRfVE9LRU59In19"
}

{
  "servers": {
    "certguard": {
      "type": "http",
      "url": "https://certguard.mike-tusa.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${CERTGUARD_TOKEN}"
      }
    }
  }
}

{
  "mcpServers": {
    "certguard": {
      "httpUrl": "https://certguard.mike-tusa.workers.dev/mcp",
      "headers": {
        "Authorization": "Bearer ${CERTGUARD_TOKEN}"
      }
    }
  }
}

extensions:
  "certguard":
    enabled: true
    name: "certguard"
    type: streamable_http
    uri: "https://certguard.mike-tusa.workers.dev/mcp"
    headers:
      "Authorization": "Bearer ${CERTGUARD_TOKEN}"
    timeout: 300

Placeholders to fill from your own secret store: ${CERTGUARD_TOKEN}. The registry never accepts secret values.

Quality 100 / 100strong

protocol100 · weight 25

pass
protocol.modernsupports 2026-07-28 (server/discover)
pass
protocol.statelessanswers without a session
pass
protocol.transportstreamable HTTP
pass
protocol.list_ttltool list is cacheable (ttlMs 3600000)

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.annotations1 of 1 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 370 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

1 tools, about 370 tokens to load them all · tool set a0277e6f574d · checked 2026-10-19 10:52 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-98% +updated-10d-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://certguard.mike-tusa.workers.dev/mcp` streamable-http	none	yes	98%	153 ms	2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05	2026-10-19

Tools (1)

check_certificateread-only Run a live TLS handshake against host:port and audit the certificate the server presents. Returns an A/B/C/F grade and summary, expiry (days remaining), hostname match, chain completeness and trust against Mozilla's root store, negotiated TLS version and cipher suite, key type/size, findings, and a link to the full report. Revocation (OCSP/CRL) is NOT checked. Hosts on Cloudflare's own network cannot be checked live (result: isError with code live_check_unavailable, no grade); a failed handshake returns check_failed with no grade. Read-only: it only opens a TLS connection to the public host. Same engine, cache and limits as the CertGuard JSON API (GET /api/v1/check).

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.workers.mike-tusa.certguard/certguard",
  "icons": [
    {
      "src": "https://certguard.mike-tusa.workers.dev/favicon.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "CertGuard",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://certguard.mike-tusa.workers.dev/mcp",
      "type": "streamable-http",
      "headers": [
        {
          "name": "Authorization",
          "isSecret": true,
          "description": "Optional. 'Bearer <key>' (free cg_ key) for higher limits. Works without a key."
        }
      ]
    }
  ],
  "version": "0.2.0",
  "websiteUrl": "https://certguard.mike-tusa.workers.dev/",
  "description": "Free SSL/TLS certificate checker: expiry, chain trust, hostname match, TLS version, A/B/C/F grade."
}