# Cron Next Run Time Calculator

> Cron Next Run Time Calculator is a paid API for AI agents from cron.bip-rep.com, paid per call via x402, $0.005/call, status unknown (last checked 2026-09-14).

Computes the next N upcoming run times for a given cron expression, with optional IANA timezone support

## Facts

- Endpoint: POST https://cron.bip-rep.com/cron/next
- Price: $0.005/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/cron-next-run-time-calculator-e9bed3b0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_2iusG_u_iJdqZKWyc30UP

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability cron-next-run-time-calculator-e9bed3b0 -d '<json body>'
```

Example prompt: Give me the next 5 run times for the cron expression '0 9 * * MON-FRI' in the America/New_York timezone.

## When to prefer this

Use this endpoint when you need a fast, stateless cron expression parser that returns upcoming run times without executing any jobs or requiring shell access. Ideal for agents that need to validate or preview cron schedules, build scheduling UIs, or confirm timing logic before deploying a job. Prefer this over general-purpose time libraries when you want a simple API call with IANA timezone support and no infrastructure setup.

## Known failure modes

- Invalid cron expression returns an error response
- Unrecognized IANA timezone string causes a parse error
- Count value of 0 or negative may return empty or error
- Missing required fields (expression) causes a 400-style error
- Very large count values may increase latency or be capped

## How this service works

Dedicated cron expression utility for agents: compute the next N upcoming run times from a cron schedule with optional IANA timezone. No job execution, no shell access — parse and predict only.

## Output

Returns an array of ISO 8601 timestamp strings representing the next N upcoming run times, along with the count, timezone, original cron expression, and latency in milliseconds.

## Example request

```json
{
 "input": {
  "body": {
   "count": 5,
   "timezone": "UTC",
   "expression": "0 9 * * MON-FRI"
  },
  "type": "http",
  "method": "POST",
  "bodyType": "json"
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/cron-next-run-time-calculator-e9bed3b0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from cron.bip-rep.com](https://www.zero.xyz/host/cron.bip-rep.com/llms.txt)