cron402

Name: cron402
Author: userdefault13

by userdefault13version 1.1.1i★ –iRuns on your computer

Registry nameio.github.userdefault13/cron402-mcp

Install

Overview

Description from the maker (original English)

Schedule webhook calls, pay per run in USDC on Base via x402. Ten tools, built for small models.

PopNx MCP’s three pillars

These three are never merged into one score: opinions, measurements and popularity are different things.

User voiceiNo reviews yetReviews open together with accounts in a later step
Our basic checksi1 of 1 passedChecked from public information; code not scanned yet
UsageiNot measured yet★ –

What you can do with it

We have not written a plain-language summary for this one yet. Below are the facts we read from the registry.

Connection: Runs on your computer
Transport: stdio
Category: Other
You need to fill in: CRON402_PRIVATE_KEY

Install

Pick the AI app you use, then copy the settings.

Before you install

Basic checks: 1 of 1 passed
Runs on your computer with your user’s permissions (files, network, apps).
You fill in yourself: CRON402_PRIVATE_KEY, CRON402_NETWORK, CRON402_API_URL, CRON402_STATE_DIR

Values marked secret are keys to your account. Never share them or paste them into a chat.

You need

npmNode.js installed (for the npx command)

Which app do you use?

ClaudeClaude CodeCursorVS CodeChatGPT

Pick your app above. We remember it, so next time the button says “Install in …”.

Open Claude Desktop → Settings → Developer → Edit Config, and paste this into claude_desktop_config.json

{
  "mcpServers": {
    "cron402": {
      "command": "npx",
      "args": [
        "-y",
        "cron402-mcp"
      ],
      "env": {
        "CRON402_PRIVATE_KEY": "your-value",
        "CRON402_NETWORK": "your-value",
        "CRON402_API_URL": "your-value",
        "CRON402_STATE_DIR": "your-value"
      }
    }
  }
}

Run this in your terminal

claude mcp add cron402 --env CRON402_PRIVATE_KEY=your-value --env CRON402_NETWORK=your-value --env CRON402_API_URL=your-value --env CRON402_STATE_DIR=your-value -- npx -y cron402-mcp

Fill in the empty values before running it.

Open in Cursor

Or copy the settings yourself

Paste into .cursor/mcp.json in your project, or ~/.cursor/mcp.json

{
  "mcpServers": {
    "cron402": {
      "command": "npx",
      "args": [
        "-y",
        "cron402-mcp"
      ],
      "env": {
        "CRON402_PRIVATE_KEY": "your-value",
        "CRON402_NETWORK": "your-value",
        "CRON402_API_URL": "your-value",
        "CRON402_STATE_DIR": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

Open in VS Code

Or copy the settings yourself

Paste into .vscode/mcp.json in your project

{
  "servers": {
    "cron402": {
      "type": "stdio",
      "command": "npx",
      "args": [
        "-y",
        "cron402-mcp"
      ],
      "env": {
        "CRON402_PRIVATE_KEY": "your-value",
        "CRON402_NETWORK": "your-value",
        "CRON402_API_URL": "your-value",
        "CRON402_STATE_DIR": "your-value"
      }
    }
  }
}

Your browser asks to open the app, then the app shows the settings and asks you to confirm. Key values are left empty for you to fill in.

This one runs on your computer, and ChatGPT can only connect to servers on the internet. Pick another app.

Your choice stays on this device in a cookie; no account needed.

Values you fill in

CRON402_PRIVATE_KEY secret env
Agent wallet private key (0x…). Fund with USDC on Base mainnet or Sepolia. Without it the server starts read-only: the free tools still work.
CRON402_NETWORK env
CAIP-2 network id. Default eip155:8453 (Base mainnet); use eip155:84532 for Sepolia.
CRON402_API_URL env
cron402 API base URL. Defaults to the production Worker.
CRON402_STATE_DIR env
Directory where created job ids are remembered so list_crons can recover them. Defaults to ~/.cron402.

These settings are generated from the maker’s registry entry. If the README says otherwise, follow the README.

What it can do

Runs on your computer; the tool list appears in your AI app after you install it.

Basic checksi

We check information anyone can see; we have not read the code. Checks that do not apply are left out of the count. · Checked Nov 7, 2026

✓ Pass
Maker matches the repo
The registry name was verified with the GitHub account userdefault13, which owns the repo
… Not checked yet
Still maintained
We have not read this repo from GitHub yet
… Not checked yet
Has a licence
We have not read this repo from GitHub yet
– Not applicable
Endpoint responds
This one runs on your computer; there is no internet endpoint
– Not applicable
Sign-in with OAuth
Runs on your computer and uses local settings instead
… Not checked yet
No hidden instructions in tool descriptions
Runs on your computer; we can only read tool lists from internet endpoints

Compared with others in Otheri

More stars than 0% of the other 32599 servers in this category
Published to the registry more recently than 34% of the other 32599 servers in this category
Basic checks equal to or better than 100% of the other 32599 servers in this category

Compared with every active server in this category in the registry. Stars count only when the publisher owns the repo.

Common questions

Is cron402 safe?

It passed 1 of 1 applicable basic checks. We have not read the code. Before adding a key or token, see what access the server asks for and use a key with only the permissions you need.

What keys or codes does it need?

You need to fill in: CRON402_PRIVATE_KEY

Does it run on my computer or in the cloud?

It runs on your computer. Your AI app starts it when needed, and data does not pass through the maker’s servers (unless it calls an online service itself).

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.1.1) reached the registry 2 months ago.

Which apps can use it?

Apps that support MCP, such as Claude Desktop, Claude Code, Cursor and VS Code. You also need Node.js on your computer.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, Zendesk

Alternatives

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Reading a card:★ GitHub starsiThree pillars: reviews · checks · usageiUpdated = latest version published to the registryi

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Computer or cloudUpdated today

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README from the maker

Open the README

Copied from the maker’s repo as written. PopNx MCP has not reviewed or endorsed it. HTML, images and scripts are removed. Links lead off this site.

cron402-mcp

MCP server for cron402 — schedule webhook calls and pay per run in USDC on Base via x402. No accounts, no API keys; your wallet is the credential.

Built so that small models can drive it safely: schedules can be written in plain English, every schedule can be validated for free before a paid call, and every response carries an explicit next_step telling the model what to do next.

Price: $0.008 USDC per run · Network: Base mainnet (eip155:8453)

Quick start

export CRON402_PRIVATE_KEY=0x...   # fund with USDC on Base

npx -y cron402-mcp

Optional env vars:

Variable	Default	Description
`CRON402_PRIVATE_KEY`	(required for paid tools)	Agent wallet private key. Without it the server still starts and the free tools work.
`CRON402_NETWORK`	`eip155:8453`	CAIP-2 id; use `eip155:84532` for Base Sepolia
`CRON402_API_URL`	production Worker	Override API base URL
`CRON402_STATE_DIR`	`~/.cron402`	Where created job ids are remembered for `list_crons`

MCP client config

Cursor / Claude Desktop:

"mcpServers": { "cron402": { "command": "npx", "args": ["-y", "cron402-mcp"], "env": { "CRON402_PRIVATE_KEY": "0x..." } } } }

OpenCode (opencode.json):

"mcp": { "cron402": { "type": "local", "command": ["npx", "-y", "cron402-mcp"], "environment": { "CRON402_PRIVATE_KEY": "0x..." }, "enabled": true } } }

Tools

Tool	Cost	Description
`cron402_guide`	free	The whole procedure, prices and rules — the tool a model should read first
`check_wallet`	free	Address, network, USDC/ETH balance, and how many runs it can afford
`preview_schedule`	free	Validate a schedule and list the next 5 run times in UTC
`create_cron`	$0.008	Create a scheduled webhook job (includes 1 run credit)
`topup_cron`	$0.008–$0.80	Add 1, 10, or 100 prepaid run credits
`get_cron`	free	Job status, credits, last 20 executions
`list_crons`	free	Jobs created from this machine, with live status
`pause_cron`	free	Pause a job (EIP-712 signed)
`resume_cron`	free	Resume a paused job (requires credits)
`delete_cron`	free	Permanently delete a job (EIP-712 signed)

Paid tools handle x402 payment automatically. Management tools sign locally with your key.

Designed for weak models

Plain-English schedules. "every 15 minutes", "every weekday at 9am", "every monday at 5pm", "weekly" and raw cron all work. Ambiguous or impossible phrases ("every 2 weeks", "at teatime") fail loudly with a fix, rather than silently scheduling the wrong thing.
Timezones. Pass timezone: "America/New_York" and the time-of-day is converted to the UTC cron the API stores, with a DST caveat in the response.
Free dry run. preview_schedule shows the next 5 fire times before a cent is spent, and create_cron re-validates locally so a bad schedule never costs money.
Money guardrails. Paid tools say PAID in their descriptions, name the exact amount, and every response tells the model not to call them twice.
Actionable errors. Insufficient funds, unreachable API, an unowned job or a localhost target each come back as { ok: false, error, next_step }.
Job memory. Created job ids are written to ~/.cron402/jobs.json so list_crons can recover them — the API has no list endpoint.
Starts without a key. A missing CRON402_PRIVATE_KEY degrades to read-only instead of failing to boot, so the model can explain what is missing.

Agent skill

A drop-in skill teaching an agent this whole workflow lives at skills/cron402/SKILL.md:

mkdir -p .claude/skills/cron402

curl -sL https://raw.githubusercontent.com/userdefault13/ai-cron-site/main/skills/cron402/SKILL.md \ -o .claude/skills/cron402/SKILL.md

License

MIT

cron402

Overview

PopNx MCP’s three pillars

What you can do with it

Install

Before you install

Values you fill in

What it can do

Basic checksi

Maker matches the repo

Still maintained

Has a licence

Endpoint responds

Sign-in with OAuth

No hidden instructions in tool descriptions

Compared with others in Otheri

Common questions

Alternatives

Spec Driven Development

Remote Desktop Commander

Zendesk

README from the maker

cron402-mcp

Quick start

MCP client config

Tools

Designed for weak models

Agent skill

Links

License