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402cron

by 402cronversion 1.0.1i★ –iRuns in the cloud
Registry namecom.402cron/402cron

Install

Overview

Description from the maker (original English)

Paid cron for AI agents: we call your https URL on schedule, signed. No account, paid with x402.

PopNx MCP’s three pillars

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

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.

Install

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

Before you install

You need

Which app do you use?

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

Works in Claude on the web, desktop and mobile:

  1. Open Settings → Connectors
  2. Press Add custom connector
  3. Paste the address below and press Add
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Add2https://…3
https://402cron.com/mcp

Run this in your terminal

claude mcp add --transport http 402cron https://402cron.com/mcp

Open in Cursor

Or copy the settings yourself

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

{
  "mcpServers": {
    "402cron": {
      "url": "https://402cron.com/mcp"
    }
  }
}

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": {
    "402cron": {
      "type": "http",
      "url": "https://402cron.com/mcp"
    }
  }
}

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.

ChatGPT connects only to servers on the internet:

  1. Open ChatGPT on the web → Settings → Connectors (Apps)
  2. Press Create or Add (some plans need Developer mode under Advanced first)
  3. Paste the address below, give it a name and save
  4. If it asks you to sign in, sign in with the maker
SettingsConnectors1+ Create2https://…3
https://402cron.com/mcp

Menu names can differ slightly by plan and over time.

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

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

What it can do

Tool names and descriptions exactly as the server reported them on Nov 9, 2026. The maker wrote them, not us; we show them as plain text.

  • get_pricing

    What a delivery costs, which packs exist, and the exact x402 payment requirements for each. Balance is counted in DELIVERIES, not money, and packs never expire. Call this before buying.

  • get_docs

    One section of the machine documentation: quickstart, headers, signature, notice, errors, billing or limits. Omit `section` to get the whole document.

  • get_service_status

    Whether the service is currently selling, on which network, and if not — why not. This is configuration, not liveness: the full health endpoint is at /health.

  • list_tasks

    Your tasks and their state. Needs your management token as an Authorization header on this connection.

  • get_task

    A single task: schedule, destination, state, next run, and how many failures in a row it carries.

  • create_task

    Register a schedule against a destination you have already verified. Idempotent on "name": the same name updates the existing task instead of creating a second one. Creating costs nothing; each delivery ATTEMPT costs one credit.

  • update_task

    Change the schedule, destination, method, timeout, headers or body of an existing task. Omit a field to leave it unchanged — sending null is refused, because "unchanged" and "cleared" must not look the same. State is NOT editable here: use pause_task and resume_task.

  • pause_task

    Stop firing until you resume. Nothing is charged while a task is paused.

  • resume_task

    Start firing again on the schedule. Refused if your balance is empty — buy deliveries first.

  • run_task_now

    Deliver immediately, outside the schedule. THIS COSTS ONE CREDIT per attempt, exactly like a scheduled firing, and a timeout or unreachable host is retried up to three times — so one call can cost up to three credits. Use it to test a destination.

  • delete_task

    Move the task to the recycle bin. It stops firing immediately and can be restored for 30 days with restore_task; after that it is unrecoverable. Credits already spent are not refunded.

  • restore_task

    Bring a task back from the recycle bin within 30 days. It comes back PAUSED — resume it explicitly.

  • register_destination

    Claim an https:// URL you control. We answer with a challenge and a SIGNING SECRET that is shown ONCE and never again — store it before you do anything else; it is what lets you verify that a delivery really came from us. The permission covers that path and everything beneath it,

  • verify_destination

    Verification is one request from us to the exact URL you registered: POST, headers X-402cron-Challenge: and X-402cron-Event: verify, JSON body {"challenge":" "}. Reply within 5 seconds, without a redirect, with a body that is the bare value or {"challenge":" "}; we read the first

  • list_destinations

    The URLs you have claimed and whether each is verified. The signing secrets are never shown again.

  • delete_destination

    Remove a claimed URL. Refused while a task still points at it — delete the task first.

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 9, 2026

  • ✓ Pass

    Maker matches the repo

    The registry name was verified against the domain 402cron.com (the registry checks domain ownership)

  • … 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

  • ✓ Pass

    Endpoint responds

    Responded in 158 ms (HTTP 200)

  • – Not applicable

    Sign-in with OAuth

    No sign-in needed

  • ✓ Pass

    No hidden instructions in tool descriptions

    Read 16 tool descriptions and found no hidden instructions to the AI

Compared with others in Otheri

  • More stars than 0% of the other 18648 servers in this category
  • Published to the registry more recently than 48% of the other 18648 servers in this category
  • Basic checks equal to or better than 100% of the other 18648 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 402cron safe?

It passed 3 of 3 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?

The registry does not list a required key, though some servers ask you to sign in on first use.

Does it run on my computer or in the cloud?

It runs in the maker’s cloud. Connect over the internet with nothing to install, but what you send passes through the maker’s servers.

Is it still maintained?

The GitHub repo last changed –, and the latest version (1.0.1) 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. It connects by URL, so apps that accept remote MCP servers work too, such as ChatGPT in developer mode.

What can I use instead?

In the same category: Spec Driven Development, Remote Desktop Commander, arr-mcp

Alternatives

Servers in the same category from other makers, sorted by stars.

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

Spec Driven Development

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by formulahendryEarly↓ 66/wk★ 440Updated 14 months ago

Runs on your computer

Remote Desktop Commander

Remote Desktop Commander: use files, terminal and processes on your own computers from any AI app.

by desktop-commanderGrowing★ 211Updated 3 days ago

Runs in the cloud✓ desktopcommander.app

arr-mcp

One server, 40 tools, the whole media stack: *arrs, Jellyfin, Plex, Seerr, Cleanuparr, downloaders

by bardesssVery newUpdated today

Runs on your computer

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.

402cron — cron for AI agents, paid per delivery

402cron calls your https endpoint on a cron schedule, signs every request, and retries what fails. An agent can set it up on its own: no account, no card, no human in the loop. Payment is x402 — USDC on Base — and the only identity is the wallet that paid.

This repository holds documentation and runnable examples. The service runs at

https://402cron.com; its source code is not published.

Links

  • https://402cron.com — the service
  • https://402cron.com/docs — machine-readable documentation (JSON; try ?section=quickstart)
  • https://402cron.com/openapi.json — OpenAPI 3.1
  • https://402cron.com/llms.txt — the service, explained for a model
  • https://402cron.com/mcp — remote MCP server (streamable HTTP), listed in the official MCP Registry as com.402cron/402cron
  • https://402cron.com/.well-known/agent-card.json — A2A agent card
  • https://402cron.com/api/pricing — the tariff, machine-readable
  • https://402cron.com/terms — terms · abuse@402cron.com

Further reading

Pricing

PackPriceDeliveriesPer delivery
trial$0.0220$0.001
starter$12,000$0.0005
month$2550,000$0.0005

The balance counts deliveries, not money, and never expires. Each delivery attempt uses one credit, so a failing delivery costs at most three. Current prices: https://402cron.com/api/pricing.

How it works

  1. Buy. GET https://402cron.com/buy/trial answers 402 with the price in the PAYMENT-REQUIRED header. Pay with any x402 client. The receipt carries your management token, shown once.
  2. Register. POST /api/destinations with {"url": "https://your.host/hook"} returns the destination id and its signing secret, shown once.
  3. Verify. Call POST /api/destinations/{id}/verify. We POST a challenge to your URL and your endpoint echoes it back. The permission then covers that path and everything below it.
  4. Schedule. POST /api/tasks with {"name", "url", "cron", "body"}. The response shows the next three runs.

Management calls take Authorization: Bearer . Lost the token? Buy again from the same wallet with ?rotate=1; the old token stops working.

What your endpoint receives

Three kinds of requests arrive at the same URL. X-402cron-Event tells them apart:

X-402cron-EventWhenSignedYour endpoint should
verifyonce, when you call /verifynoanswer with the X-402cron-Challenge value as the body, within 5 s
deliveryon schedule, on retries, and when you call /runyescheck the signature and answer 2xx within 2 s
task_pausedonce, when a task pausesyesread reasonCode, fix the cause, POST the resume URL

The signature is X-402cron-Signature: sha256= , an HMAC-SHA256 keyed with your signing secret over the bytes of:

{X-402cron-Timestamp}\n{X-402cron-Delivery-Id}\n{X-402cron-Attempt}\n{METHOD}\n{path+query}\n{raw body}

The event label is not signed: branch on it, but trust what the signature covers. Delivery is at least once — the same X-402cron-Delivery-Id can arrive twice, so treat a repeat as already handled. Deliveries also carry X-402cron-Task-Id and X-402cron-Deliveries-Left.

Retries and pausing

  • A timeout or an unreachable host is retried: up to 3 attempts, 60 s and 120 s apart.
  • A 4xx or 5xx is your server's answer, so it is not retried.
  • 3 failed attempts, 20 refusals in a row, or 10 server errors in a row pause the task. You get one task_paused notice; resuming is one call.

Limits

  • cron: 5 fields, always UTC, one minute at the finest. Names (MON-FRI, JAN) and macros (@daily, @hourly, …) work; anything unsupported is refused with a code that says why.
  • Destinations must be https://.
  • Body up to 64 KB, custom headers up to 8 KB.

All limits: https://402cron.com/docs?section=limits

Examples

FolderWhat it isRun
receiver/nodea destination endpoint, no dependenciesSECRET_402CRON=… node server.mjs
receiver/pythonthe same, standard library onlySECRET_402CRON=… python server.py
clientbuy a trial with x402, register, verify, schedulenpm install, then DRY_RUN=1 node buy-and-schedule.mjs

Both receivers answer the challenge, verify signatures, drop duplicate deliveries and log pause notices. The client reads the price from the PAYMENT-REQUIRED header like any standard x402 client, caps what it may spend (MAX_USD, default $0.05), and with DRY_RUN=1 signs without paying anything. On Windows PowerShell, set variables with $env:SECRET_402CRON="…" first.

Use it from an MCP client

Claude Code:

claude mcp add --transport http 402cron https://402cron.com/mcp --header "Authorization: Bearer <token>"

Other clients: add a remote (streamable HTTP) server at https://402cron.com/mcp with the same header. get_pricing, get_docs and get_service_status work without a token. There is no purchase tool on purpose: pay over plain HTTP, because a signed payment should not travel through a model's context.

Guarantee

We guarantee that we tried to deliver your task — not what someone else's server does with it. Full terms: https://402cron.com/terms

License

The examples in this repository are MIT-licensed — see LICENSE.

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