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Cron Parser API

br0ski777/cron-parser-x402

If you're working with scheduled tasks and need to decode cron syntax on the fly, this server handles the parsing and validation for you. It takes cron expressions and explains what they mean in plain terms, validates whether they're properly formed, and calculates upcoming execution times. The server runs as a hosted service over SSE and uses x402 micropayments, so you'll need compatible tooling to connect. Useful when you're debugging automation scripts, building scheduling interfaces, or just trying to figure out what `*/15 3-5 * * 1-5` actually does without opening another tab.

tool
1
transport
SSE
last updated
May 16, 2026

Tools

1 tools

Public tool metadata for what this MCP can expose to an agent.

schedule_parse_cronUse this when you need to parse, validate, or explain a cron expression. Returns human-readable description, next N execution times, and field breakdown. Supports standard 5-field cron and extended 6-3 params

Use this when you need to parse, validate, or explain a cron expression. Returns human-readable description, next N execution times, and field breakdown. Supports standard 5-field cron and extended 6-

Parameters* required
countnumber
Number of next run times to return (default: 5, max: 20)
expressionstring
Cron expression (e.g. '0 9 * * 1-5' or '*/5 * * * *')
timezonestring
IANA timezone (default: UTC, e.g. America/New_York)

Sponsors

Readme

Cron Parser API

MCP Server x402 License: MIT

Parse, validate, and explain cron expressions. Get next N run times in any timezone. Pay-per-call via x402 (USDC on Base L2) -- no API key, no signup, no rate-limit wall.

Part of the klymax402 marketplace -- 100 x402 micropayment APIs for AI agents, one wallet, USDC on Base.

Quickstart -- MCP

Add to your MCP client config (Claude Desktop, Cursor, ElizaOS, etc.):

{
  "mcpServers": {
    "cron-parser": {
      "url": "https://cron-parser.api.klymax402.com/mcp"
    }
  }
}

Quickstart -- HTTP (x402)

curl -X POST "https://cron-parser.api.klymax402.com/api/parse" \
  -H "Content-Type: application/json" \
  -d '{"expression":"..."}'
# -> 402 Payment Required, with an x402 payment challenge in the response body

View the full README on GitHub

Details

Repository
github.com/br0ski777/cron-parser-x402
Website
github.com/Br0ski777/cron-parser-x402
Category
Automation & Workflows
Transport
SSE
Registry
MCP registry, active

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