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8 clients · secrets stay placeholders

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{
  "mcpServers": {
    "sumbloom": {
      "type": "http",
      "url": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}

claude mcp add --transport http sumbloom https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry --header "x-api-key: ${X_API_KEY}"

[mcp_servers.sumbloom]
url = "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry"
env_http_headers = { "x-api-key" = "X_API_KEY" }

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "sumbloom": {
      "type": "remote",
      "url": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "enabled": true,
      "headers": {
        "x-api-key": "{env:X_API_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "sumbloom": {
      "type": "http",
      "url": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=sumbloom&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vc3VtYmxvb20uY3liZXJtYXh0b29scy5jb20vbWNwP3ZpYT1tY3AtcmVnaXN0cnkiLCJoZWFkZXJzIjp7IngtYXBpLWtleSI6IiR7WF9BUElfS0VZfSJ9fQ%3D%3D"
}

{
  "servers": {
    "sumbloom": {
      "type": "http",
      "url": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}

{
  "mcpServers": {
    "sumbloom": {
      "httpUrl": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "headers": {
        "x-api-key": "${X_API_KEY}"
      }
    }
  }
}

extensions:
  "sumbloom":
    enabled: true
    name: "sumbloom"
    type: streamable_http
    uri: "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry"
    headers:
      "x-api-key": "${X_API_KEY}"
    timeout: 300

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

Quality 91 / 100strong

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 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 298 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 298 tokens to load them all · tool set fa6771dc58e9 · checked 2026-10-19 19:01 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 87 / 100

duplicate-repo

provenance85

liveness97

freshness100

hygiene60

+repository +dns-namespace +website +reachable +uptime-93% +updated-9d-ago -duplicate-repo(34 names)

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://sumbloom.cybermaxtools.com/mcp?via=mcp-registry` streamable-http	none	yes	93%	245 ms	2025-11-25	2026-10-19

Tools (1)

get_number_puzzleread-only Returns an original number puzzle (Target, Cage Grid or Brick Pyramid) at easy, medium or hard, with its rules, the puzzle as JSON, an SVG image URL for printing and, optionally, the solution. Cage Grids and Pyramids have exactly one solution (solver-checked). Use it for math practice, classroom warm-ups, puzzle apps or a daily puzzle. Free tier 50 puzzles a day without a key; paid API keys (Bearer) for more.

Schemas: list_tools.

Also listed as

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Official server.json

{
  "name": "dev.workers.cybermax-tools.cybermax/sumbloom",
  "_meta": {
    "io.modelcontextprotocol.registry/publisher-provided": {
      "docs": "https://cybermaxtools.com/mcp/sumbloom/",
      "store": "https://cybermaxtools.com/store/",
      "pricing": {
        "free": "50 free/day",
        "paid": "$5/mo"
      },
      "support": "[email protected]",
      "security": "https://cybermaxtools.com/.well-known/security.txt",
      "publisher": "CyberMax",
      "categories": [
        "puzzles",
        "games",
        "education",
        "svg"
      ]
    }
  },
  "icons": [
    {
      "src": "https://cybermaxtools.com/store/img/sumbloom-api-icon.webp",
      "sizes": [
        "96x96"
      ],
      "mimeType": "image/webp"
    }
  ],
  "title": "Sumbloom",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://sumbloom.cybermaxtools.com/mcp?via=mcp-registry",
      "type": "streamable-http",
      "headers": [
        {
          "name": "x-api-key",
          "isSecret": true,
          "description": "Optional paid-plan key from the CyberMax Store; leave out for the free daily quota."
        }
      ]
    }
  ],
  "version": "1.1.2",
  "repository": {
    "url": "https://gitlab.com/CyberMax.tools/agent-tools",
    "source": "gitlab",
    "subfolder": "mcp/sumbloom"
  },
  "websiteUrl": "https://cybermaxtools.com/store/sumbloom-api/?s=mcp-registry-sumbloom",
  "description": "Number puzzle API + MCP: solver-checked puzzles as JSON/SVG, daily puzzle. $5/mo; 50 free/day."
}