Connect

8 clients · secrets stay placeholders

JSON (mcpServers)Claude CodeCodexOpenCodeCursorVS CodeGemini CLIGoose

{
  "mcpServers": {
    "cronspell": {
      "type": "http",
      "url": "https://cronspell.mike-tusa.workers.dev/mcp"
    }
  }
}

claude mcp add --transport http cronspell https://cronspell.mike-tusa.workers.dev/mcp

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

{
  "$schema": "https://opencode.ai/config.json",
  "mcp": {
    "cronspell": {
      "type": "remote",
      "url": "https://cronspell.mike-tusa.workers.dev/mcp",
      "enabled": true
    }
  }
}

{
  "mcpServers": {
    "cronspell": {
      "type": "http",
      "url": "https://cronspell.mike-tusa.workers.dev/mcp"
    }
  },
  "deeplink": "cursor://anysphere.cursor-deeplink/mcp/install?name=cronspell&config=eyJ0eXBlIjoiaHR0cCIsInVybCI6Imh0dHBzOi8vY3JvbnNwZWxsLm1pa2UtdHVzYS53b3JrZXJzLmRldi9tY3AifQ%3D%3D"
}

{
  "servers": {
    "cronspell": {
      "type": "http",
      "url": "https://cronspell.mike-tusa.workers.dev/mcp"
    }
  }
}

{
  "mcpServers": {
    "cronspell": {
      "httpUrl": "https://cronspell.mike-tusa.workers.dev/mcp"
    }
  }
}

extensions:
  "cronspell":
    enabled: true
    name: "cronspell"
    type: streamable_http
    uri: "https://cronspell.mike-tusa.workers.dev/mcp"
    timeout: 300

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.annotations4 of 4 tools declare readOnlyHint or destructiveHint
pass
tools.directory_hintsevery tool declares readOnlyHint, destructiveHint, idempotentHint and openWorldHint
pass
tools.token_costabout 1,098 tokens to load every tool
pass
tools.api_dumptools are not a one-to-one API dump
pass
tools.hidden_textno hidden text in tool names, descriptions, schemas or annotations

stability100 · weight 15

pass
stability.changesno tool changes in 30 days
pass
stability.rug_pullno tool changed its meaning under the same name
pass
stability.new_linksno tool change named a new site

dependenciesn/a · weight 15

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

4 tools, about 1,098 tokens to load them all · tool set b07da5278c61 · checked 2026-11-14 07:36 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-23d-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://cronspell.mike-tusa.workers.dev/mcp` streamable-http	none	yes	90%	143 ms	2026-07-28, 2025-11-25, 2025-06-18, 2025-03-26, 2024-11-05	2026-11-14

Tools (4)

`cron_runs_between`read-only	List every run of a cron expression between start and end (both inclusive) in an IANA time zone, DST-aware, oldest first. Default limit 20, max 100; truncated is true when there are more. Read-only. Same engine as GET /api/between.
`explain_cron`read-only	Explain a cron expression in plain English, e.g. "0 9 * * 1-5" → "At 09:00, on Monday through Friday." Also returns notes on cron rules that often surprise people (day-of-month OR day-of-week, seconds field, shorthand expansion). Invalid expressions return isError with the reason. Read-only. Same engine as GET /api/explain.
`next_cron_runs`read-only	List the next (or, with direction "previous", the most recent past) run times of a cron expression in an IANA time zone, DST-aware. Each run has the local time with its UTC offset, the UTC time, unix seconds and weekday. Default 5 runs, max 20; searches up to 50 years. Read-only. Same engine as GET /api/next and GET /api/previous.
`validate_cron`read-only	Check whether a cron expression is valid. Returns valid true with the expanded values of every field (minute, hour, day of month, month, day of week, and seconds for 6-field expressions), or valid false with an error code, the field at fault and a message. Detects schedules that can never run (e.g. February 30). Read-only. Same engine as GET /api/validate.

Schemas: list_tools.

Similar MCP servers

Official server.json

{
  "name": "dev.workers.mike-tusa.cronspell/cronspell",
  "icons": [
    {
      "src": "https://cronspell.mike-tusa.workers.dev/favicon.svg",
      "sizes": [
        "any"
      ],
      "mimeType": "image/svg+xml"
    }
  ],
  "title": "CronSpell",
  "$schema": "https://static.modelcontextprotocol.io/schemas/2025-12-11/server.schema.json",
  "remotes": [
    {
      "url": "https://cronspell.mike-tusa.workers.dev/mcp",
      "type": "streamable-http"
    }
  ],
  "version": "0.1.0",
  "websiteUrl": "https://cronspell.mike-tusa.workers.dev/",
  "description": "Validate and explain cron expressions; list next/previous run times in any time zone, DST-aware."
}