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OPay Payments API

Server-to-server payment creation across payment methods.

OPay Payments API is one of 3 APIs that OPay publishes on the APIs.io network, described by a machine-readable OpenAPI specification.

Tagged areas include Payments. The published artifact set on APIs.io includes an OpenAPI specification.

This API exposes 1 operation across 1 path, and defines 10 schemas. It is described by OpenAPI 3.0.3, at version 1.0.

Requests are made against 2 base URLs: https://liveapi.opaycheckout.com/api/v1/international, https://testapi.opaycheckout.com/api/v1/international.

1 operations 1 paths 10 schemas 1 POST

Metadata

The identity and technical contract details declared by the specification.

Specification
OpenAPI 3.0.3
API Version
1.0
Base URL
https://liveapi.opaycheckout.com/api/v1/international
Authentication
HTTP Bearer, HTTP Bearer
Resource Areas
1

Authentication & Security 2

OPay Payments API declares 2 security schemes for authenticating requests. It accepts HTTP bearer tokens (PublicKeyAuth). It accepts HTTP bearer tokens (SignatureAuth).

  • PublicKeyAuth — Bearer token = merchant public key (used for cashier/create).
  • SignatureAuth — Bearer token = HMAC-SHA512 of the JSON request body signed with the merchant private key.

Paths & Operations 1

Across 1 path, the API surfaces 1 operation — 1 POST. Each is listed below with its method, path, parameters, and response codes.

Payments 1

Server-to-server payment creation across payment methods.

POST
/payment/create
Create Server Payment
createPayment 1 param body → 200

Schemas 10

The contract defines 10 schemas that model the data the API accepts and returns. The most detailed are PaymentCreateRequest (11 properties), BankCard (6 properties), NextAction (5 properties), UserInfo (4 properties). Each schema is shown below with its type and property counts.

Amount
object
2 properties 2 required
ApiEnvelope
object
2 properties
PayMethod
string
BankCard
object
6 properties
NextAction
object
Instructions for the next step required to complete the payment.
5 properties
PaymentCreateResponse
Product
object
2 properties
PaymentCreateRequest
object
11 properties 5 required
PaymentStatus
string
UserInfo
object
4 properties

Specification

The full machine-readable OpenAPI contract behind this narrative.

Source

opay-payments-api-openapi.yml Raw ↑

Other APIs OPay publishes across the network.

OPay Cashier API
OPay Refunds API
Where this information came from

This is an independent, third-party profile of OPay Payments API, published by API Evangelist. We do not operate, host, resell, or support these APIs, and we are not affiliated with or endorsed by the company unless stated above. Everything here is built from publicly available information — the company's own site, developer portal, documentation, public repositories, and the specifications it publishes for public use. Nothing is obtained by breaching a system, defeating an access control, or using credentials.

The Kin Score and Agent Readiness rating are independently calculated assessments of a company's public API artifacts, scored against a published rubric. They are not certifications, endorsements, security assessments, or audits.

Corrections, re-scores, and removal are free — no partnership or purchase required, and you do not need to justify the request. A removed company is recorded as unrated, never scored zero for having asked. Acknowledgement within one business day; removal within two.

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