Payment Processors · reliability comparison
Authorize.net vs Stax: which is more reliable? (2026)
Stax is more reliable than Authorize.net, scoring 49.0 vs 39.3 out of 100. Over the last 90 days Authorize.net reported 8 incidents and Stax reported 4, with effective uptime of 97.93% and 98.48% respectively. Stax resolves incidents faster on average (21h 59m).
Data updated Nov 1, 2026 · How we score
| Metric | Authorize.net | Stax |
|---|---|---|
| Reliability score | 39.3 | 49.0 |
| Rank (payment processors) | #11 | #9 |
| Uptime (90 days) | 97.93% | 98.48% |
| Incidents (90 days) | 8 | 4 |
| Partial / major outages | 4 | 2 |
| Avg time to resolve | 1d | 21h 59m |
| Outages we detected | 0 | 0 |
| Transparency score | 100/100 | 100/100 |
Where Authorize.net and Stax differ
- Authorize.net reported 2× as many incidents as Stax over the last 90 days (8 vs 4).
- Authorize.net had 4 partial or major outages, compared with 2 for Stax.
- Stax fixes problems faster: 21h 59m on average, against 1d for Authorize.net.
- Authorize.net's longest outage on record lasted 3d (Jul 1, 2026); Stax's lasted 2d 2h (Oct 27, 2026).
90-day uptime
Authorize.net
Stax
- No incidents
- Degraded
- Partial outage
- Major outage
- No data
Recent Authorize.net incidents
- InformationalSep 13, 2026 · resolved in <1m
CreateTransaction API calls Failing
Affected: Authorize.net API
- Partial outageSep 7, 2026 · resolved in 22h 23m
API Connection/Endpoint Service Disruption
Affected: Authorize.net API
- Degraded performanceSep 2, 2026 · resolved in 2h 29m
Customer Invoicing Service Disruption
Affected: Customer Invoicing
- Degraded performanceAug 20, 2026 · resolved in 1d 5h
API Connection/Endpoint - Server Integration Method (SIM) Relay Response Issue
Affected: Server Integration Method (SIM)
- Partial outageAug 14, 2026 · resolved in 7h 56m
API Connection/Endpoint Service Disruption
Affected: Accept Suite
- Partial outageAug 13, 2026 · resolved in 1d 1h
NAB EPX Processing Service Disruption
Affected: NAB EPX
Recent Stax incidents
- Partial outageOct 27, 2026 · resolved in 2d 2h
Affected: Settlements, Fees, and Payouts
- Partial outageOct 20, 2026 · resolved in 14h 41m
Funding Delay October 20, 2026
Affected: Settlements, Fees, and Payouts
- InformationalOct 7, 2026 · resolved in <1m
- Degraded performanceSep 28, 2026 · resolved in 49m
Affected: Scheduled Payments, Stax API