API reference / Auth

Verify seller credentials and request an OTP

POST/open/v1/auth/seller-verifyScope: No data scope

Service Endpoint Seller token not required

Environment	Base URL + Path
Production	`https://open.mallplus.ph/open/v1/auth/seller-verify`
Sandbox	`https://sandbox.open.mallplus.ph/open/v1/auth/seller-verify`

Common Signing and Seller Headers

Header	Type	Required	Rules	Description
X-MallPlus-Partner-Id	string	Yes	Issued client ID for the calling app.	Identifies the partner app whose secret signs the request.
X-MallPlus-Timestamp	integer	Yes	Unix timestamp in seconds; default acceptance window is 90 seconds.	Prevents replay outside the allowed signing window.
X-MallPlus-Signature-Version	string	Yes	Use `3` for HMAC v3.	Selects the request signing algorithm.
X-MallPlus-Nonce	string	Yes	32-64 lowercase hexadecimal characters, unique per request.	Replay-protection nonce included in the v3 signing base string.
X-MallPlus-Signature	string	Yes	HMAC-SHA256 over timestamp, client ID, method, path, canonical query, body hash, and nonce.	Cryptographic proof that the request was signed with the app secret.
X-MallPlus-Access-Token	string	Conditional	Required when the operation says seller token required.	Seller OAuth access token returned by the authorization flow.
X-MallPlus-Seller-Id	string	Conditional	Required when `X-MallPlus-Access-Token` is required.	Seller ID bound to the seller OAuth token.

Parameters

This operation does not define path or query parameters in OpenAPI.

Request Body required

Field	Type	Required	Rules	Description
email	string	No	-	Email address.
identifier	string	No	Min length: 1	Seller login identifier.
password	string	Yes	Min length: 1	Seller password used for verification.
client_id	string	Yes	Min length: 1	Partner application client ID.
redirect_uri	string<uri>	Yes	Format: uri	Registered redirect URI for the OAuth flow.
state	string	No	Max length: 1024	State value.
scopes	array<string>	No	Max items: 50	OAuth scopes requested or granted.
scopes[]	string	No	-	-

Response Parameters

Success status: HTTP 200

Field	Type	Rules	Description
success	enum	Allowed: true	Whether the request completed successfully.
data	SellerVerifyData	No additional properties	Response or event payload for this schema.
data.phone_masked	string	-	Masked phone number where the OTP was sent. Empty for sandbox-shop flows without a phone.
data.expires_in_seconds	integer	-	Seconds until the seller authorization session and OTP challenge expire.
data.resend_after_seconds	integer	-	Minimum number of seconds the seller should wait before requesting another OTP.
data.reference_code	string	-	Optional OTP provider reference code shown to the seller when one is returned upstream.

Error Codes

HTTP Status	Schema	Description
400	PlatformError400Response	Validation error, or a missing/malformed required signing header (BAD_REQUEST)
401	PlatformError401Response	Unauthorized — invalid credentials, invalid signature, or expired timestamp (TIMESTAMP_EXPIRED)
403	PlatformError403Response	Forbidden — insufficient scope
413	PlatformError413Response	The request body exceeds the endpoint payload limit
429	PlatformError429Response	The partner or endpoint rate limit has been exceeded
503	PlatformError503Response	A required platform or upstream dependency is temporarily unavailable

This operation does not declare its own error.code list. Any operation can return the authentication, signing, scope, rate-limit and system codes listed in the Error code reference.

Request Example

# Sandbox: https://sandbox.open.mallplus.ph/open/v1/auth/seller-verify
curl -X POST "https://open.mallplus.ph/open/v1/auth/seller-verify" \
  -H "X-MallPlus-Partner-Id: mp_partner_123" \
  -H "X-MallPlus-Timestamp: 1786924800" \
  -H "X-MallPlus-Signature-Version: 3" \
  -H "X-MallPlus-Nonce: 4f8b9a0c4d5e6f708192a3b4c5d6e7f8" \
  -H "X-MallPlus-Signature: <hex_hmac_sha256>" \
  -H "Content-Type: application/json" \
  --data '{
  "email": "partner@example.com",
  "identifier": "example_identifier",
  "password": "example_password",
  "client_id": "client_id_123",
  "redirect_uri": "https://example.com/resource",
  "state": "example_state",
  "scopes": [
    "example_scopes"
  ]
}'

Response Example

{
  "success": true,
  "data": {
    "phone_masked": "+63900****000",
    "expires_in_seconds": 600,
    "resend_after_seconds": 60
  }
}