Payment Dispute Evidence

When a player disputes a payment, the payment processor asks Aghanim to prove that the purchase was legitimate and delivered. Aghanim compiles an evidence package from the data it already has, and the S2S Dispute Evidence API lets your game server add the game-side facts the platform cannot know: whether the purchased goods were consumed, where they were used, and details about the player's account in the game.

How it works

1. Dispute opened - A player files a dispute with their payment method. Aghanim sends a payment.dispute webhook for the payment.
2. You submit evidence - Your server calls the Dispute Evidence API with consumption facts, player details, and supporting files.
3. Evidence package sent - Aghanim includes your evidence in the package submitted to the payment processor.
4. Dispute resolved - The outcome arrives as a payment.succeeded (won) or payment.chargeback (lost) webhook carrying the dispute object.

Prerequisites

• API Key: Required for authenticating your S2S API requests.
• Payment number: The endpoints identify the payment by its payment number, which is the receipt_number field of the payment webhook payload.

Submit evidence

Create or update dispute evidence for a payment:

PUT https://api.aghanim.com/s2s/v1/payments/{payment_number}/dispute_evidence

Request schema

All fields are optional. The request is a partial update: only the fields present in the JSON body are written, fields you omit keep their stored values, and a field sent as null is cleared. Repeated calls merge into the same evidence record.

Field	Type	Description	Required
purchase_used	boolean	Whether the purchased goods were consumed.	No
used_at	number	Unix timestamp when the purchased goods were consumed.	No
usage_id	string	Your identifier of the event where the goods were consumed, e.g. a match, session, or quest ID. Max 512 characters.	No
comment	string	Free-form note for support. Max 4096 characters.	No
player_attributes	PlayerAttributes	Player fields stored on the player profile, not on the payment.	No

The PlayerAttributes object schema

Field	Type	Description	Required
registered_at	number	Unix timestamp when the player registered in the game. It may predate the creation of the player's Aghanim account.	No
first_login_ip	string	IP address of the player's first login in the game, as reported by the game. Max 64 characters.	No
is_verified	boolean	Whether the player's account is verified on the game side.	No

The player_attributes fields are the same attributes your server can return from the player.verify webhook; use whichever channel fits your integration.

Example request

curl -X PUT https://api.aghanim.com/s2s/v1/payments/2409051289614565/dispute_evidence \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <YOUR_API_KEY>' \
  -d '{
        "purchase_used": true,
        "used_at": 1725634567,
        "usage_id": "match_8f3a1c",
        "comment": "Crystals were spent on a legendary chest",
        "player_attributes": {
          "registered_at": 1609459200,
          "first_login_ip": "203.0.113.7",
          "is_verified": true
        }
    }'

The response is the DisputeEvidence object.

Retrieve evidence

Return the stored dispute evidence for a payment, including the player fields:

GET https://api.aghanim.com/s2s/v1/payments/{payment_number}/dispute_evidence

The response is the DisputeEvidence object. The endpoint responds with 404 when no evidence has been submitted for the payment yet.

Upload an evidence file

Attach a supporting file (a screenshot, a log extract, a receipt) to the payment's evidence:

POST https://api.aghanim.com/s2s/v1/payments/{payment_number}/dispute_evidence/files

Request schema

The file is sent as base64 inside a JSON body, not as multipart form data:

Field	Type	Description	Required
file_name	string	Original file name, kept as part of the stored file ID. Max 255 characters.	Yes
file_type	string	MIME type of the file, e.g. application/pdf. Defaults to application/octet-stream.	No
file_base64_content	string	File content encoded as base64. Up to roughly 10 MB of binary data.	Yes

The content must be valid base64 without line breaks or whitespace, otherwise the request fails with 422.

Example request

curl -X POST https://api.aghanim.com/s2s/v1/payments/2409051289614565/dispute_evidence/files \
  -H 'Content-Type: application/json' \
  -H 'Authorization: Bearer <YOUR_API_KEY>' \
  -d '{
        "file_name": "consumption-log.pdf",
        "file_type": "application/pdf",
        "file_base64_content": "JVBERi0xLjQKJ..."
    }'

The endpoint responds with 201 and the DisputeEvidence object including the updated file_ids. Each upload appends to the list; there is no way to remove an uploaded file via the API, so contact support if a file was attached by mistake.

The DisputeEvidence object

Both endpoints and the file upload return the full evidence record:

Field	Type	Description
id	string	Unique identifier of the evidence record, prefixed with pde_.
payment_number	string	Payment number the evidence belongs to.
purchase_used	boolean|null	Whether the purchased goods were consumed.
used_at	number|null	Unix timestamp when the purchased goods were consumed.
usage_id	string|null	Your identifier of the event where the goods were consumed.
file_ids	string[]|null	Identifiers of the uploaded evidence files.
comment	string|null	Free-form note for support.
modified_at	number|null	Unix timestamp of the last update, null until the record is updated.
player_attributes	PlayerAttributes	Player fields from the player profile; all fields are null when unknown.

The PlayerAttributes object in responses

Field	Type	Description
registered_at	number|null	Unix timestamp when the player registered in the game.
last_active_at	number|null	Unix timestamp of the player's last activity on the platform. Read-only.
first_login_ip	string|null	IP address of the player's first login in the game.
is_verified	boolean|null	Whether the player's account is verified on the game side.

Example response

{
  "id": "pde_eFgYpxryeKXpLKfmZstI",
  "payment_number": "2409051289614565",
  "purchase_used": true,
  "used_at": 1725634567,
  "usage_id": "match_8f3a1c",
  "file_ids": ["fl_a1b2c3_consumption-log.pdf"],
  "comment": "Crystals were spent on a legendary chest",
  "modified_at": 1725638167,
  "player_attributes": {
    "registered_at": 1609459200,
    "last_active_at": 1725630000,
    "first_login_ip": "203.0.113.7",
    "is_verified": true
  }
}

Error responses

HTTP Status	Endpoint	Description
401	All	Missing or invalid API key.
404	All	The payment number is unknown for your game.
404	GET	No dispute evidence has been submitted for the payment yet.
404	PUT	player_attributes fields were sent, but the payment has no player to store them on.
422	PUT, POST	Validation error: a field exceeds its length limit or file_base64_content is not valid base64.

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