Cron Parser API
io.github.Br0ski777Published by GitHub account Br0ski777v1.1.0Updated Oct 24, 2026
Parse, validate and explain cron expressions. Get next run times. x402 micropayment.
The publisher's own server: Parser Club
Overview
Remote MCP endpoint that parses, validates and explains cron expressions and returns their next run times, paid per call in USDC.
- What you can do
- Parse, validate and explain a cron expression, including a field breakdown and human-readable description
- Get the next N execution times (default 5, max 20) in a chosen IANA timezone
- Handle standard 5-field cron and extended 6-field cron with seconds
- When to use it
- Useful when an assistant needs to check whether a cron schedule is valid, explain what an expression means, or list upcoming run times in a specific timezone. It is a single-purpose utility, not a task scheduler.
- Requirements
- Remote SSE endpoint at cron-parser.api.klymax402.com; no API key or signup. Each call is paid per use via x402 with USDC on Base L2, so an x402-capable client and a funded wallet are needed; plain HTTP requests get a 402 payment challenge.
Installation
In SourceWeft
- Open Cron Parser API in the dashboard and add it to a workspace.
- Enable the server for the chats that should use its tools.
Web executable via SSE. Remote servers run from the web runtime once configured in a workspace.
Use with an agent
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.Br0ski777%2Fcron-parser/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Other MCP clients
Add this to your client's mcpServers config.
{
"mcpServers": {
"cron-parser-api": {
"type": "sse",
"url": "https://cron-parser.api.klymax402.com/mcp"
}
}
}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.):
Quickstart -- HTTP (x402)
Any x402-aware client (@x402/fetch, x402-agent-tools, ATXP) handles the 402 -> sign -> retry cycle automatically.
Tools
schedule_parse_cron
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-field (with seconds). Do NOT use for scheduling tasks — use api_test_webhook instead. Do NOT use for JSON validation — use data_validate_json instead.
Parameters
Example agent prompts
- "Parse, validate, or explain a cron expression"
Payment
- Protocol: x402 -- HTTP-native pay-per-call, no signup, no API key
- Network: Base L2 (
eip155:8453) - Asset: USDC
- Facilitator: Coinbase CDP (primary), PayAI (fallback)
Part of klymax402
100 x402 micropayment APIs for AI agents -- one wallet, USDC on Base, zero signup.
- Catalog: https://klymax402.com/llms.txt
- Full API reference: https://klymax402.com/llms-full.txt
- Live stats: https://klymax402.com/stats
License
MIT
Source: README.md at commit f0bf811
Tools
0Version history
1- v1.1.0LatestSep 16, 2026
Score
50% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
- Reached in the last 30 daysRequired25 pts
Keep the endpoint answering the MCP handshake; SourceWeft probes it every 30 days.
- Auth declaredRequired10 pts
Declare the credential headers in the registry entry, or keep the endpoint answering the probe so its auth can be classified.
- Tools listed15 pts
Answer tools/list without a credential, or ship a package that starts in a sandbox without one.
- DescriptionRequired15 pts
- Logo10 pts
- Documentation15 pts
- License10 pts
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