# Shipzil

> Carrier API status for USPS, FedEx and UPS, cross-referenced across four shipping platforms run by three independent companies. Free, collected every 5 minutes.

## Full content

- [/llms-full.txt](https://shipzil.com/llms-full.txt): Complete site content in a single markdown file

## Pages

- [Status Dashboard](https://shipzil.com/): Current USPS, FedEx, UPS API status with 90-day uptime history
  - Markdown: [/index.md](https://shipzil.com/index.md)
- [USPS Status](https://shipzil.com/carrier/usps): Is USPS API down? Status, uptime, response time, error rates, incidents
  - Markdown: [/carrier/usps.md](https://shipzil.com/carrier/usps.md)
- [FedEx Status](https://shipzil.com/carrier/fedex): Is FedEx API down? Status, uptime, response time, error rates, incidents
  - Markdown: [/carrier/fedex.md](https://shipzil.com/carrier/fedex.md)
- [UPS Status](https://shipzil.com/carrier/ups): Is UPS API down? Status, uptime, response time, error rates, incidents
  - Markdown: [/carrier/ups.md](https://shipzil.com/carrier/ups.md)
- [Incidents](https://shipzil.com/incidents): Incidents and maintenance, filterable by carrier, platform, severity and service
  - Markdown: [/incidents.md](https://shipzil.com/incidents.md)
- [EasyPost](https://shipzil.com/platform/easypost): Carrier status and uptime as reported by EasyPost
- [Shippo](https://shipzil.com/platform/shippo): Carrier status and uptime as reported by Shippo
- [ShipStation](https://shipzil.com/platform/shipstation): Carrier status and uptime as reported by ShipStation
- [ShipEngine](https://shipzil.com/platform/shipengine): Carrier status and uptime as reported by ShipEngine
- [How This Works](https://shipzil.com/about): Methodology, exclusions and limitations

## Data endpoints

- `https://shipzil-worker.sameer-kumar.workers.dev/status`: Full collected state as JSON
- `https://shipzil-worker.sameer-kumar.workers.dev/live`: Current status and headline uptime, ~2KB
- `https://shipzil-worker.sameer-kumar.workers.dev/health`: Collector health; 503 when collection is stale

## How to read the numbers

Shipzil cross-references what EasyPost, Shippo, ShipStation and ShipEngine each report for USPS, FedEx and UPS. ShipStation and ShipEngine are both Auctane products and publish the same incidents, so they count as one independent source rather than two — three companies in total. When two independent companies report the same carrier as impaired, it is more likely the carrier than an integration problem at one platform.

Uptime is calculated per platform from the incident durations those platforms report, and the headline figure for a carrier is its **worst-performing platform, not an average**. Averaging mixes integrations that are not comparable (ShipStation and ShipEngine reach USPS through Stamps.com, EasyPost and Shippo connect directly) and improves the number every time a platform is added.

Excluded from uptime: standing advisories left unresolved for more than 48 hours, the platforms' own account-surface incidents (login, dashboard, billing), scheduled maintenance, and incidents belonging to carriers not tracked here.

This is reported uptime, not independently measured. Shipzil does not probe carrier APIs directly, so an outage no platform reported does not appear.

## Contact

sam@sameerkumar.website