Technical diligence · 2026

Prop Firm Software API & Webhook Checklist

An API checkbox says almost nothing about integration quality. Engineering buyers should inspect which resources can be read/written, how events are delivered and how the system recovers when either side fails.

Authentication

Resource coverage

List required objects: customer, order, challenge, account, trade/event, risk state, KYC, payout, affiliate and product configuration. Mark read/write/event support separately.

Webhook events

FXPropTech's current public webhook material illustrates the level of specificity buyers should seek, listing events such as trade opened/closed, account status change, drawdown breach, payout processed, challenge passed and KYC verified. Confirm which events are actually available in your purchased scope.

Delivery reliability

Write safety

For account creation, payouts or other writes, ask about idempotency keys and duplicate-request behavior. Network retries should not create duplicate financial/operational actions.

Rate limits

Record per-second/minute/day limits, burst behavior, response headers and enterprise increase process. Model peak jobs such as bulk migrations and reporting.

Sandbox

A useful sandbox should allow realistic lifecycle and failure tests without production accounts. Verify whether trading-platform and KYC/payment dependencies can also be simulated.

Versioning

Ask how breaking changes are announced, deprecation windows, version pinning and changelog access. Integration maintenance is part of long-term TCO.

Observability

Engineering teams need request IDs, useful errors, delivery logs and enough support context to debug a failed event without exchanging screenshots.

Plan gating

Tradaxi's current public tiers, for example, place webhook event API on Pro and custom API integrations on Enterprise. Always map API requirements to the exact commercial tier.

See our broader API buyer guide and demo tests.

Find API-capable providers →

FAQ

Are webhooks real-time?

They can be near-real-time event delivery, but buyers should verify actual delivery behavior, retries and dependencies rather than assume zero latency.

Do I need an API if the vendor has integrations?

Not necessarily. Native integrations may be sufficient for standardized operations; APIs matter more when you need proprietary workflows or external systems.