API Key Types
Where keys come from
Key issuance depends on mode:
- Test keys (
vp_sk_test_*,vp_pk_test_*) come from your business's sandbox. Activate it from Developers and create them there. Asking for test keys on the live business is refused with403 test_keys_are_sandbox_only. - Live keys (
vp_sk_live_*,vp_pk_live_*) are created on the live business, never on a sandbox (403 live_keys_not_on_sandbox). They are issued once your merchant application is approved and a payment processor is connected to your account. Both are required, and they are checked in that order:- Not approved yet:
403 merchant_not_onboarded(Error Codes). - Approved, but nothing connected:
403 live_keys_need_processor(Error Codes). - We could not confirm your payment setup:
503 processor_check_unavailable(Error Codes). This one is temporary and is not a problem with your request; retry shortly.
- Not approved yet:
These refusals gate creating a new key. Keys you already hold keep working, and rotating one is never gated, so a leaked key can always be replaced.
Key types at a glance
| Key | Prefix | Where to use it | Rotation |
|---|---|---|---|
| Test secret key | vp_sk_test_ | Server-side code, test mode only | Grace window (default 24h) |
| Live secret key | vp_sk_live_ | Server-side code, production only | Grace window (default 24h) |
| Test publishable key | vp_pk_test_ | Browser-exposed client code, test mode only | Grace window (default 24h) |
| Live publishable key | vp_pk_live_ | Browser-exposed client code, production only | Grace window (default 24h) |
| Legacy secret key | vp_key_ | ⚠ Older accounts only. Still accepted, and treated as a full secret key — server-side only, never in a browser | Rotate to a vp_sk_ key |
Older accounts may hold an ss_test_ / ss_live_ session secret. It is no longer issued and verifies nothing — in particular it is not how you confirm a payment when the buyer is redirected back. Read the outcome from sessions.get and fulfil on the charge.succeeded webhook instead; see Handle the return.
Webhook signing secrets (whsec_*) are separate — see Webhook Signing Secrets.
Secret vs publishable — when to use which
-
Secret keys (
vp_sk_*) can create sessions, retrieve session status, and do everything through the API. Never expose them to a browser or mobile app. -
Publishable keys (
vp_pk_*) are safe to embed in client code. They can initialize the drop-invora-hosted.jswidget and create sessions —POST /v1/sessionsis the only merchant-facing endpoint a publishable key can write through, and even there five fields are secret-key only (gateway,storedCredentialUse,captureMethod,setupForFutureUseand the buyer fields): a publishable-key request carrying one is refused withauth_key_type_forbidden. One read-only route also accepts either key type:GET /v1/capabilities. Every other/v1/merchant route rejects a publishable key withauth_key_type_forbidden(HTTP 403), including retrieving the full session details a secret key sees.Session creation is not the only thing a publishable key does. Ten browser-facing
/v1/public/*handlers require a publishable key and reject a secret one — so the reach of a publishable key is wider than the merchant surface suggests:Route Method What it does /v1/public/sessions/{id}GETRedacted public session view (id, expiry, amount, currency, routing — no PII, no merchant-internal metadata, no provider session id) /v1/public/sessions/{id}/embed-tokenGETShort-lived token for the embedded-fields frame /v1/public/sessions/{id}/mirror-orderGETMirrored store-order status for this session /v1/public/sessions/{id}/chargePOSTCharges the buyer — Embedded Fields charge at submit. 422 merchant_not_configuredwhere your gateway does not support it;501 endpoint_not_implementedwhile it is switched off platform-wide or not yet live-enabled for your gateway/v1/public/sessions/{id}/completePOSTCompletes the session after payment — the SDK calls it for you /v1/public/binder-loadPOSTPer-processor element capability map /v1/public/tokensPOSTMints a vp_pmt_*payment-method token from the browser — and on a wallet request (instrument: "wallet") charges the buyer directly/v1/public/telemetry/browserPOSTBrowser telemetry ingest /v1/public/wallets/apple-sessionPOSTApple Pay merchant validation for standalone wallets, enabled per account /v1/public/wallets/google-sessionPOSTGoogle Pay session for standalone wallets, enabled per account The session routes are session-bound — each is scoped to one checkout session, and a cross-merchant, mode-mismatched, or unknown session collapses to an opaque
404. That scoping, not the key type, is what limits them. (/v1/public/telemetry/browsertakes no session and is rate-limited per IP instead.)
Key type is derived authoritatively from the prefix: vp_pk_ ⇒ publishable, vp_sk_ ⇒ secret. The checkout API enforces key-type restrictions server-side. For example, calling sessions.get() (GET /v1/sessions/:id, the full secret-key view) with a publishable key returns auth_key_type_forbidden (HTTP 403). The SDK surfaces that 403; it does not reject the key at construction time — constructing a client with a publishable key is allowed.
Rotation grace
When you rotate a secret or publishable key, the old key stays valid for a grace window so you can deploy the new key without downtime. The grace period is caller-configurable — 1h, 24h, or 7d — and defaults to 24h when you don't specify one. The old key keeps working until grace_ends_at, after which it rejects with auth_key_expired.
Rotation timeline (default 24h grace)
| t = | State |
|---|---|
| t0 | Click Rotate in /dashboard/developers/api-keys. New key is created; old key enters grace. |
| t0 | UI shows the raw value of the new key once. Copy it to your secret manager immediately. |
| t0 → t0+24h | Both keys accepted. Deploy the new key across all your services during this window. |
| t0+24h | Old key rejects with auth_key_expired (HTTP 401). Grace ends. |
If you rotate with a 1h or 7d grace, the t0+24h row shifts to t0+1h or t0+7d accordingly.
You cannot re-rotate a key that is already in its grace window — that returns 404 ("not eligible for rotation"); rotate the current primary key instead. A predecessor already in grace stays active until its own grace_ends_at passes; rotating again does not deactivate it early. There is no per-window rotation rate limit (24h is the default grace period, not a cooldown), though each mode has a cap on the number of simultaneously-active keys (fresh + in-grace) — exceeding it returns 409.
Compromise — skip the grace
If a key is exposed (leaked to a public repo, screenshot, shoulder-surf, etc.), do not initiate a normal rotation. Grace would keep the compromised key working for the duration of the grace window.
Instead, from /dashboard/developers/api-keys:
- Click Revoke on the compromised key (not Rotate). It is refused with no grace window.
- Create a fresh key.
- Move your deployed services to the fresh key.
A revoked key (one with no rotation metadata) rejects with auth_invalid_key. A key that simply ran out its rotation grace rejects with auth_key_expired.
Rotation-badge states (dashboard)
Each key in /dashboard/developers/api-keys carries a badge: Active (the current primary), Grace: ends in <N>h (previous primary, accepted until grace_ends_at), Revoked (auth_invalid_key from now on) or Expired (grace passed — auth_key_expired). When a service starts failing authentication after a rotation, the badge on the key it holds says which.
Expiry behavior
API keys do not have a baked-in TTL — they stay Active until rotated or revoked. The only paths to expiry are:
- Normal rotation → previous key enters its grace window → rejects with
auth_key_expiredoncegrace_ends_atpasses. - Revoke → immediate rejection with
auth_invalid_key. - Merchant account suspension → all keys for that merchant immediately reject with
auth_merchant_inactive(HTTP 401). This is an account-level state (the merchant account is suspended or no longer approved for the mode), separate from per-key rotation/revocation. - Revocation by Von Payments — e.g. in response to a breach report. Shows the same Revoked badge.
A freshly-rotated key needs no further activation step.
Related
- Webhook Signing Secrets — per-subscription secrets, different lifecycle
- Security
- Error Codes —
auth_*