Before hit this API, QoinHub will call [Access Token API B2B] Merchant first. Merchant have to use QoinHub a partner id that will be used in request header as X-PARTNER-ID.
Access Token API B2B
Path
[merchant_endpoint]/api/v1.0/access-token/b2b
HTTP Method
POST
Version
v1.0
Service Code
73
Request Header
Field Name
Field Type
Mandatory
Field Description
Content-type
String
M
Media type of the resource, i.e. application/json
X-TIMESTAMP
String
M
Client’s current local time in ISO-8601 format
X-SIGNATURE
String
M
Created using asymmetric signature SHA256withRSA algorithm. Read here
X-CLIENT-KEY
String
M
Client’s client_id (given at the completion registration process)
Content-type
application/json
X-TIMESTAMP
2025-07-06T14:12:50+07:00
X-SIGNATURE
neGbHoFVY1d7EtG8Z6VBWwykvyqIkg
X-CLIENT-KEY
QoinSnap
Request Body
Field Name
Field Type
Mandatory
Field Description
grantType
String
M
client_credentials: The client can request an access token using only its client credentials
Represents access_token of a request; string starts with keyword “Bearer ” followed by access_token. Can get this from Access Token B2B API response. Read here
X-TIMESTAMP
String
M
Client’s current local time in ISO-8601 format
X-SIGNATURE
String
M
Created using symmetric signature HMAC_SHA512 algorithm. Use Access Token B2B from above.