10000app #0042 · PMF preflight 68/100 · 28 days + 150 qualified visits + paid evidence

A healthy fallback
can still corrupt state.

Describe one API operation and the planned provider switch. The preflight turns hidden cross-provider assumptions into an explicit hold/review record; it never flips traffic or treats endpoint health as proof that writes are safe.

Preflight one fallback route 核对依据

Free · browser-only

Local provider-fallback preflight

Operation labelUse a redacted label; do not paste payloads, credentials, customer data or internal hostnames. Primary provider label Fallback provider label Operation class State model Semantic parity Identity / tenant mapping Cross-provider idempotency Failover trigger Compensation Reconciliation Tolerated staleness (seconds) Last measured replication lag (seconds)Enter 0 only when state is truly synchronous/stateless—not when lag is unknown.

Current gateDESCRIBE ONE ROUTE

Blocking assumptions0

Write riskUNKNOWN

Staleness checkN/A

Human approvals1

Resolve before routing

Minimum drill

All calculations stay in this browser. The paid pack sends only the labels and selections shown here; it does not receive provider credentials, payloads or production telemetry.

Reliability boundary: the output is a question set, not a failover recommendation. It cannot observe production state, detect an outage, prove provider equivalence or authorize a switch. Writes, replays, compensation and failback always require the named service/data owners and tested evidence.

Paid · one-time

$19 Fallback Review Pack

Generate a Markdown route contract, blocking-question list, failure-mode rehearsal and signed approval record for one provider fallback. Use redacted labels only.

State authority, staleness and provider-parity contract
Write, idempotency and duplicate-side-effect review
Trigger, compensation, reconciliation and failback drill
Named owner, evidence window and approval record

unlocked · apifallback-route only

生成当前方案

Source ledger

Provider-native patterns and free substitutes

PMF preflight 68/100 · 28 days + 150 qualified visits + paid evidence

AWS · Multi-Region API Gateway failoverStrong platform-specific substitute: discrete services can be failed over independently using data-plane routing controls rather than an unavailable primary control plane.AWS · Read-local, write-global APIReference architecture makes the data decision explicit: read locally while writes keep one authoritative path and replicated state.Azure · Compensating TransactionCompensation is application-specific, can fail, should be resumable and idempotent, and may require human intervention.Azure · Circuit BreakerStrong free design substitute for preventing repeated calls to a failing dependency; it does not by itself solve cross-provider state consistency.Stripe · Idempotent requestsProvider-specific substitute showing how one API retains a first result under an idempotency key; cross-provider equivalence still needs its own evidence.