YOUHODLERBusiness API
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postRegister withdrawal destination

Required capabilitywithdrawal_destinations.create

Registers a crypto withdrawal destination with typed {asset, network, destination: {address, memo}, label} routing and scope_ref. Fiat destination creation requires account_ref and canonical fiat rails routing {fiat_rail, method, currency, beneficiary_name, bank_coordinates, reference_hint}; the pooled fiat route owner is derived server-side. The Idempotency-Key header is required: fiat creation rejects requests without it, and the crypto path forwards it for replay-safe provisioning.

Request

Request URL

POST
POST /withdrawal-destinations

Request Body

application/json
{
  "crypto_routing": {
    "asset": "USDC",
    "destination": {
      "address": "0xAbCd1234567890AbCd1234567890AbCd12345678",
      "memo": null
    },
    "label": "My ETH wallet",
    "network": "ethereum"
  },
  "rail_class": "crypto",
  "scope_ref": "clients/b8e2f1a0-4c3d-4e5f-9a1b-2c3d4e5f6a7b"
}

Responses

Response

application/json
{
  "asset": "USDC",
  "created_at": "2026-05-01T10:00:00Z",
  "crypto_routing": {
    "asset": "USDC",
    "destination": {
      "address": "0xAbCd1234567890AbCd1234567890AbCd12345678",
      "memo": null
    },
    "label": "My ETH wallet",
    "network": "ethereum"
  },
  "fiat_routing": null,
  "id": "b8e2f1a0-4c3d-4e5f-9a1b-2c3d4e5f6a7b",
  "label": "My ETH wallet",
  "rail_class": "crypto",
  "scope_ref": "clients/b8e2f1a0-4c3d-4e5f-9a1b-2c3d4e5f6a7b",
  "status": "active",
  "updated_at": "2026-05-01T10:00:00Z"
}

Resource created successfully.

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