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Overview

Register an external address so you can use it as a transfer source or destination. External addresses can be onchain wallets, offchain bank accounts, or Canton parties. When you create an external address, Brale returns an address_id (KSUID) that binds the destination (wallet, party, or bank account) to its supported transfer_types. Use this address_id in all subsequent transfers. If the same user has wallets on multiple non-EVM chains (e.g., Solana and Stellar), create separate external addresses and you’ll receive distinct address_id values for each.

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Endpoint

POST /accounts/{account_id}/addresses/external

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Onchain wallets

Each blockchain has its own address format. EVM-compatible chains share addresses, but non-EVM chains require separate entries. EVM (one address, multiple chains) 
{
  "name": "User EVM Wallet",
  "address": "0xb518d4d6221d9a41d23d71cbce8e106e7aab8f9b",
  "transfer_types": ["ethereum", "base", "polygon", "arbitrum"]
}
Solana 
{
  "name": "User Solana Wallet",
  "address": "7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU",
  "transfer_types": ["solana"]
}
Stellar 
{
  "name": "User Stellar Wallet",
  "address": "GCZJM35NKGVK47BB4SPBDV25477PZYIYPVVG453LPYFNXLS3FGHDXOCM",
  "transfer_types": ["stellar"]
}
XRP Ledger 
{
  "name": "User XRP Wallet",
  "address": "rN7n3473SaZBCG4dFL83w7a1RXtXtbk2D9",
  "transfer_types": ["xrp_ledger"]
}
Canton 
{
  "name": "External Canton Party",
  "address": "canton-party-id",
  "transfer_types": ["canton"]
}
Note: Canton transfers to external parties require acceptance within 72 hours or they expire. Transfers to parties also custodied by Brale are accepted automatically.

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Offchain bank account (ACH/Wire/RTP)

{
  "owner": "Jane Doe",
  "name": "Jane Checking Account",
  "account_number": "123456789",
  "routing_number": "071000013",
  "account_type": "checking",
  "bank_address": {
    "street_line_1": "10 N Upper Wacker Dr",
    "city": "Chicago",
    "state": "IL",
    "zip": "60606"
  },
  "beneficiary_address": {
    "street_line_1": "200 Main St",
    "city": "Naperville",
    "state": "IL",
    "zip": "60540"
  },
  "transfer_types": ["ach_credit", "ach_debit", "wire"]
}

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Example request

curl --request POST \
  --url "https://api.brale.xyz/accounts/${ACCOUNT_ID}/addresses/external" \
  --header "Authorization: Bearer ${AUTH_TOKEN}" \
  --header "Content-Type: application/json" \
  --header "Idempotency-Key: $(uuidgen)" \
  --data '{
    "name": "User Solana Wallet",
    "address": "7xKXtg2CW87d97TXJSDpbD5jBkheTqA83TZRuJosgAsU",
    "transfer_types": ["solana"]
  }'

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Example response

{
  "id": "2VcUIIsgARwVbEGlIYbhg6fGG57"
}
Use this id as the address_id in transfers.

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Notes

  • External addresses have type: external when fetched via GET /addresses.
  • You cannot query balances for external addresses—only internal (custodial) ones.
  • Bank accounts can also be linked via Plaid instead of manual entry.
  • You can add transfer_types to an existing address via PATCH /addresses/{address_id}.
  • See Transfer Types for all supported chains/rails.