FAST
Fast And Secure Transfers — Singapore’s real-time interbank rail with PayNow proxies.
FAST is a real-time payment rail routed by KeyBS Pay. Fast And Secure Transfers — Singapore’s real-time interbank rail with PayNow proxies.
Payouts routed through FAST settle to beneficiary accounts in SG. Where FAST is available for the destination country, it is the default rail for eligible payouts.
Every FAST payout is subject to KYB, KYC and sanctions screening. Pricing is disclosed in full before approval; failed payouts return a signed webhook event with a machine-readable reason code and remain refundable per program policy.
Corridor mechanics at a glance
Every KeyBS Pay payout follows the same operational contract; only the rail changes.
How a FAST payout moves through KeyBS Pay
FAST settles in real-time on eligible SGD destinations.
Popular FAST searches
Auto-generated from real query patterns across the KeyBS Pay hub.
Ask AI about the FAST rail
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Countries reachable via FAST
FAST by industry
FAST developer resources
Frequently asked questions
What is FAST?
Fast And Secure Transfers — Singapore’s real-time interbank rail with PayNow proxies.
How fast is FAST?
Real-time. Actual settlement time is disclosed pre-approval and confirmed by signed webhook once the beneficiary bank acknowledges the credit.
Which countries can I reach through FAST?
SG. Availability is beneficiary-bank-dependent; the router falls back to wire if the beneficiary bank is not on FAST.
What currencies are supported on FAST?
SGD is the primary settlement currency for FAST. Multi-currency corridors are supported where the rail permits.
What limits apply on FAST?
Rail-specific ceilings apply; the platform surfaces them pre-approval. Higher-value transactions are automatically routed to wire.
Is FAST available 24/7?
Real-time rails (including FAST) operate around the clock. Batch and wire rails follow the local banking window.
How do I integrate FAST?
You don’t. KeyBS Pay abstracts rail selection: submit a payout to POST /v1/payouts and the router picks the fastest eligible rail. Use "method": "auto" (default) or force a specific method where policy requires.
Is FAST regulated?
Yes. KeyBS Pay routes FAST payouts only through partners licensed for the destination corridor.
Can I get a FAST settlement report?
Yes. Per-rail, per-corridor reconciliation reports are available in the dashboard and via API export.
What happens if a FAST payout fails?
Failed payouts return a signed webhook event with a machine-readable reason code. Funds remain in the source ledger and can be re-routed or refunded.
How is pricing set for FAST?
Quote-based, disclosed in full pre-approval. No undisclosed intermediary-bank deductions on eligible local rails.
Can I use FAST for consumer payouts?
Yes, where the beneficiary and route policy permit consumer flows. Stablecoin routes are business-only.
Are there cutoffs on FAST?
Real-time rails have no cutoffs. Batch and wire rails follow local banking-day windows; cutoffs are shown at quote time.
Does FAST support idempotent retries?
Yes. Every KeyBS Pay payout carries an Idempotency-Key so retries after transient errors are safe.
Which industries use FAST most?
Marketplaces, cross-border trade, workforce and NGO programs are the largest users of FAST on the KeyBS Pay platform.
Route your first FAST payout
Rail selection is automatic — you never have to pick one manually unless program policy requires it.