SupaKeeper Plain comparisons of AI coding tools

IsDown alternatives in 2026

Looking past IsDown? See what IsDown offers, what Codex Forecast does for Codex usage limit resets, and how to match each to your need.

By SupaKeeper ยท

SupaKeeper is published by LunarWerx, which makes some of the tools compared here.

IsDown provides outage data from 6,320+ vendors through an API. [1] Codex Forecast is a free website with a public API that estimates when OpenAI will next reset Codex usage limits. [2] [2] [2] Pick by the question you need answered.

OptionWhat it doesCost
IsDownOutage data from 6,320+ vendors via API. [1]Starter $27 per month, or $22 per month when paid annually. [1] Free 14-day trial, no credit card. [1]
Codex ForecastStatistical estimate of when OpenAI will next reset Codex usage limits. [2]Free, with no account and no paid tier. [2]

Why developers look past IsDown

The Starter plan is for individuals tracking a few services. [1] The Pro plan is for small teams monitoring key vendors. [1] The Premium plan is for companies with multiple products or teams. [1] The Business plan is for organizations with complex dependencies. [1] The MSP plan is for monitoring several clients from one admin view. [1] The Starter plan for individuals costs $27 per month, or $22 per month when paid annually. [1] The Pro plan costs $49 per month, or $40 per month when paid annually ($480/year). [1] The Premium plan costs $99 per month, or $80 per month when paid annually ($960/year). [1] The Business plan costs $179 per month, or $150 per month when paid annually. [1] The MSP plan costs $200 per month and is billed monthly only. [1]

IsDown offers a free 14-day trial with no credit card required. [1] Its Outage Data API provides real-time and historical outage data from 6,320+ vendors. [1] Check whether a tool built around vendor outages answers questions about usage limits, since the IsDown facts here do not say.

IsDown: outage data for software vendors

IsDown describes its Pro plan as being for small teams monitoring key vendors. [1] Its Starter plan is for individuals tracking a few services. [1] Creating an account gives an instant 14-day Pro trial. [1]

Paying annually saves about 20%. [1] Education and non-profit customers get 30% off. [1] IsDown refunds in full if you cancel within 10 days of subscribing. [1] It accepts Purchase Orders and invoices for annual plans. [1]

Codex Forecast: estimates the next Codex limit reset

Codex Forecast is made by the team that publishes this site. It gives a statistical estimate of when OpenAI will next reset Codex usage limits. [2] It is an independent tracker and is not affiliated with OpenAI. [2]

The forecast draws on three sources: a reading of an account every 60 seconds, OpenAI staff announcements, and the OpenAI status page. [2] When a measured refill and an announcement disagree, it trusts the measured refill. [2] Each reset used in the forecast is listed with a link to where it was announced. [2] Its named-day predictions are scored in public, misses included. [2]

You can opt in to free emails that are sent when a reset actually happens. [2] A public API that needs no key gives stats, paginated reset history, forecasts and operational health. [2] The API has a published OpenAPI specification. [2] The site and API share a snapshot that is cached for up to five minutes. [2]

It is free, with no account and no paid tier. [2] It is a website with a public API. [2]

How to pick the right IsDown alternative

Choose IsDown when the need is outage data from many software vendors: its Outage Data API provides real-time and historical outage data from 6,320+ vendors. [1] Its Starter plan is for individuals tracking a few services, and its Pro plan is for small teams monitoring key vendors. [1] [1] The 14-day trial needs no credit card. [1]

Choose Codex Forecast when the question is when Codex usage limits will next reset. It gives a statistical estimate of the next reset. [2] Check how much weight you put on a forecast: its named-day predictions are scored in public, misses included. [2] If you want a message when a reset happens, you can opt in to free emails. [2] If you want to read the data in your own scripts, the public API needs no key. [2]

The two can sit side by side, because Codex Forecast is free with no account. [2] Before choosing, check whether you need vendor outage alerts, usage limit timing, or both, and check how fresh the data must be, since Codex Forecast shares a snapshot cached for up to five minutes. [2]

Frequently asked questions

How much does IsDown cost?

IsDown's Starter plan for individuals costs $27 per month, or $22 per month when paid annually. [1] The Pro plan costs $49 per month, or $40 per month when paid annually. [1] The MSP plan costs $200 per month and is billed monthly only. [1] Paying annually saves about 20%. [1]

Does IsDown have a free trial?

IsDown offers a free 14-day trial with no credit card required. [1] Creating an account gives an instant 14-day Pro trial. [1] It also refunds in full if you cancel within 10 days of subscribing, so check which of the two terms applies to your situation. [1]

Is there a free tracker for Codex usage limit resets?

Codex Forecast is free, with no account and no paid tier. [2] It gives a statistical estimate of when OpenAI will next reset Codex usage limits. [2] It is an independent tracker and is not affiliated with OpenAI. [2] Check the forecast history before relying on any single estimate.

Does IsDown have an API?

IsDown's Outage Data API provides real-time and historical outage data from 6,320+ vendors. [1] Codex Forecast also has a public API that needs no key, and it gives stats, paginated reset history, forecasts and operational health. [2] The API has a published OpenAPI specification. [2]

Can Codex Forecast send an alert when limits reset?

You can opt in to free emails that are sent when a reset actually happens. [2] The forecast draws on three sources: a reading of an account every 60 seconds, OpenAI staff announcements, and the OpenAI status page. [2] When a measured refill and an announcement disagree, it trusts the measured refill. [2]

It is free, with no account and no paid tier. [2]

Try Codex Forecast

Sources

  1. IsDown, isdown.app/pricing, read 2026-10-08
  2. Codex Forecast's own description of itself (the product of this site's publisher)

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