GETGet Operator Parameters

Fetch the custom input fields required by a specific biller before payment.

GET/customer/payment/bbps/operator/{operator_id}/parameters

Returns the operator-specific parameter schema — field names, labels, data types, and validation regex — needed to build a dynamic payment form. Also returns fetchBill (1 = mandatory Fetch Bill step) and BBPS (1 = show Bharat BillPay branding). Call this once per operator and cache the result.

Path parameters

Field	Type	Required	Description
`operator_id`	number	required	The operator/biller ID from the Get Operators response.e.g. 83

operator_idnumberRequired

The operator/biller ID from the Get Operators response.

example: 83

Query parameters

Field	Type	Required	Description
`initiator_id`	string	required	Registered mobile number of the API user (see Platform Credentials).e.g. 9962981729

initiator_idstringRequired

Registered mobile number of the API user (see Platform Credentials).

example: 9962981729

Headers

Field	Type	Required	Description
`developer_key`	string	required	Static API key issued to your account after KYC.
`secret-key`	string	required	Dynamic per-request signature: base64(HMAC-SHA256(timestamp, base64(access_key))).
`secret-key-timestamp`	string	required	Current time in milliseconds since UNIX epoch, used to compute secret-key. Must match server time.
`content-type`	string	required	application/jsone.g. application/json

developer_keystringRequired

Static API key issued to your account after KYC.

secret-keystringRequired

Dynamic per-request signature: base64(HMAC-SHA256(timestamp, base64(access_key))).

secret-key-timestampstringRequired

Current time in milliseconds since UNIX epoch, used to compute secret-key. Must match server time.

content-typestringRequired

application/json

example: application/json

Responses

statusnumber
Primary success indicator (0 = success).
messagestring
Human-readable response / error message.
response_status_idnumber
Granular status id; see the shared error-codes table.
response_type_idnumber
A unique id for every possible response shape (success or error) — useful for client logic branching and analytics.
dataobject
API-specific response payload.
- fetchBillnumber
  1 = Fetch Bill API must be called before Pay Bill; 0 = direct payment allowed.
- BBPSnumber
  1 = biller is on the BBPS network; display the Bharat BillPay logo per NPCI guidelines.
- dataarray
  List of input parameters required by this biller.
  - param_namestring
    API field name to send in the Fetch Bill / Pay Bill request.
  - param_labelstring
    UI label to display to the end user.
  - param_typestring
    Input type: Numeric, Decimal, AlphaNumeric, or List.
  - regexstring
    Regular expression to validate the user's input before submission.
  - error_messagestring
    Validation error message to show when the regex does not match.