MERIDIAN APIAn integration
An integration
built to maintain
Typed contracts, idempotent operations, signed events, and a safe sandbox, with access granted after project review.
Illustrative workflow
MERIDIANMERIDIAN API
REST v1
HMAC-SHA256
OpenAPI
Live operating layer
Built around the actual flow
What your business gets
API & webhooks
One contract
Payments, refunds, balances, holds, and payouts follow the same structure.
01Replay control
Idempotency-Key protects every write.
02Reliable events
Webhook attempts are signed, logged, and retried by policy.
03How it works
built to maintain
Access
An approved project receives sandbox access and a one-time secret.
Integrate
Use the typed client or the REST contract.
Validate
Test success, failure, timeout, refund, and replay.
Launch
Production access starts with project-specific methods and limits.
Operational picture
Everything that matters, in one operating layer
Status, project rules, and events stay connected. Teams can see what is happening now and which configuration was applied to every operation.
- One contract
- Replay control
- Reliable events
Current projectAPI & webhooksMERIDIAN / 01
01REST v1Captured
02HMAC-SHA256Captured
03OpenAPICaptured
Event trailLIVE
Clear answers before you start.
What does Meridian do?
It brings together online payment acceptance, operation tracking and business settlement. Onboarding starts with company and project review.
Who can apply?
International online businesses, including stores, services and platforms. Each project is reviewed with its audience and geography in mind.
Which payment methods are available?
MIR, Visa and Mastercard cards, SBP, T-Pay and SberPay. Specific method availability is confirmed during onboarding.
Do I need to build a payment form?
No. Use hosted checkout and payment links. The API automates payment creation and result delivery.
When do funds become available?
After successful payment and the release period set in your terms. Pending and available funds are shown separately.
MERIDIAN PAYMENTS
Talk to our team