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Service Failover Selector
x402
Service Failover Selector is a paid API for AI agents from phion.systems, paid per call via x402, $0.003/call, status unknown (last checked 2026-10-20).
Selects the highest-priority healthy and compatible provider for failover without silent fallback, surfacing the decision transparently
Price / call$0.003
Success—
StatusUnknown
How this service works
Select the highest-priority healthy compatible provider without silent fallback
Output
Returns the explicitly selected highest-priority provider that is both healthy and compatible with the stated requirements, along with the rationale for the selection, priority ranking context, and health status — ensuring no silent fallback occurs.
Example use cases
Agent fleet primary provider outage
“My primary LLM provider is unresponsive right now. I have three backup providers — can you pick the highest-priority one that's healthy and compatible with my current throughput and latency requirements, and tell me which one you selected and why?”
Multi-provider payment routing failover
“My default payment processor is returning errors. I need you to select the best healthy alternative from my approved provider list based on priority order, without just silently switching — I want to know which one you chose and your reasoning.”
Data pipeline provider health check
“My main data enrichment provider seems to be down. Can you evaluate my list of compatible fallback providers, pick the highest-priority healthy one, and give me a clear explanation of which one I should route to instead of just guessing?”
Technical details
Endpoint
POSThttps://phion.systems/v1/paid/trust/service-failover-selector?utm_source=zero.xyzWhen to prefer
Choose this endpoint when you need explicit, auditable failover decisions rather than silent substitution — especially in agentic workflows where transparency about which provider was selected and why is critical for debugging, compliance, or trust. Prefer this over generic load-balancers or silent retry logic when the selection rationale must be surfaced to the user or logged for audit.
Side effects
- No healthy providers available — all candidates failing health checks
- No compatible providers match the stated requirements
- Insufficient provider metadata to assess compatibility
- Input schema missing required service context fields
- Ambiguous or conflicting priority definitions preventing clear ranking
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| inputrequired | object | |
| outputrequired | object |
Output
Schema · Response
{
"type": "json"
}Tags
x402
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