Argon

API Reference

Update custodian details

Partially update custodian settlement wallets and callback URL.

POSThttps://api.argonpay.app/graphqlupdateCustodianDetails

Partially updates custodian settings. Only provided fields change. Debits 1 credit.

Endpoint

POST https://api.argonpay.app/graphql

Mutation

GraphQL
mutation UpdateCustodianDetails($input: CustodianUpdateInput!) {
  updateCustodianDetails(input: $input) {
    code
    message
    custodian {
      id
      wallets {
        bep20
        polygon
        base
        solana
      }
      callbackUrl
      createdAt
    }
    apiKey {
      key
      creditsLeft
    }
  }
}

Input

Same shape as CustodianCreateInput (CustodianUpdateInput).

Example variables

JSON
{
  "input": {
    "apiKey": "YOUR_API_KEY",
    "wallets": {
      "polygon": "0xNewPolygonAddress"
    },
    "callbackUrl": "https://merchant.example/webhooks/argonpay"
  }
}

Webhook preview

Preview callback payload

Argonpay POSTs JSON to your custodian callbackUrl when a payment completes, expires, or is cancelled. Adjust the fields below to see the exact body shape, then optionally send a test request to your endpoint.

POST body preview
JSON
{
  "txnid": "demo-txn-abc123",
  "status": "completed",
  "amount": 25.5,
  "amountInToken": 25.5,
  "network": "polygon",
  "createdAt": "2026-07-13T17:22:58.995Z",
  "secret": "your-custodian-secret",
  "privateKey": "your-custodian-secret"
}