Pilot environment: testnet, simulated yield, mocked fiat rails — read the disclosure
Beneficiaries

Register a payout destination

One call registers the payee and the destination itself — a bank account or a wallet. A destination is NEVER usable at registration: it must clear screening, TCB approval, and a holding period first. The response tells you where it stands; poll GET /beneficiaries/{id} or subscribe to the beneficiary.activated event for the moment it becomes usable. A wallet destination additionally requires the travelRule capture. Registering details you already hold live is refused with DUPLICATE_INSTRUMENT rather than saved twice.

POST
/api/partner/v1/beneficiaries

One call registers the payee and the destination itself — a bank account or a wallet. A destination is NEVER usable at registration: it must clear screening, TCB approval, and a holding period first. The response tells you where it stands; poll GET /beneficiaries/{id} or subscribe to the beneficiary.activated event for the moment it becomes usable. A wallet destination additionally requires the travelRule capture. Registering details you already hold live is refused with DUPLICATE_INSTRUMENT rather than saved twice.

AuthorizationBearer <token>

In: header

Header Parameters

Idempotency-Key?string

Your own key for this request, 1-100 characters. Required, here or as the idempotencyKey body field; sending both is allowed only if they match. Replaying a key returns the first result without executing anything a second time, and sets replayed to true where the response carries that field. Sending the same key with different parameters is refused with 409 IDEMPOTENCY_KEY_REUSED — use a new key for a different request. While the first call is still running, a second call with the same key answers 409 IDEMPOTENT_REQUEST_IN_PROGRESS. A key is remembered for 24 hours from the first call; after that it is forgotten and reusing it starts a new request.

Request Body

application/json

TypeScript Definitions

Use the request body type in TypeScript.

A payout destination to register: the payee and the bank account or wallet itself, in one call.

Response Body

application/json

application/json

application/json

application/json

application/json

application/json

curl -X POST "https://example.com/api/partner/v1/beneficiaries" \  -H "Content-Type: application/json" \  -d '{    "entityType": "INDIVIDUAL",    "idempotencyKey": "acme-payee-2026-09-03-0001",    "instrument": {      "chain": "ETHEREUM",      "details": {},      "kind": "FIAT_BANK",      "networks": [        "ETHEREUM"      ],      "rail": "SEPA",      "travelRule": {}    }  }'
{  "data": {    "addressFamily": "EVM",    "beneficiaryId": "9b3e5c17-2a80-4f64-b1d9-6c0e8a4f2d53",    "chain": null,    "createdAt": "2026-09-03T10:15:30.000Z",    "currency": "EUR",    "deletedAt": null,    "details": {      "bicSwift": "COBADEFFXXX",      "iban": "DE89370400440532013000"    },    "disclosure": {      "items": [        "ENVIRONMENT_IS_TESTNET: The environment is a testnet (Arbitrum Sepolia). No mainnet deployment exists.",        "YIELD_IS_SIMULATED: The vault rate is set administratively and the interest it produces is minted as fresh underlying, not earned. It does not represent a return generated by deployed capital.",        "FIAT_RAILS_ARE_MOCKED: No real fiat movement occurs. Balances are ledger entries against a sandbox provider.",        "CONVERSION_RATES_ARE_MARKET_QUOTED_OR_REFUSED: A conversion is priced only by an external venue that quotes independently of TCB. When no such venue can price the pair, the conversion is refused rather than priced from an internal table. Read rate.pricingModel on every conversion: MARKET is a venue quote; any other value is not a market rate and must not be presented as one.",        "CONTRACTS_ARE_UNAUDITED: No audit has been performed. Mainnet is gated on a two-firm audit that has not been commissioned.",        "CUSTODY_IS_TCB_SUBACCOUNT: Everything held for the client — its vault shares, and the tcbUSD it holds between the steps of the tokenised deposit chain — is held in TCB custody, in the one TCB wallet assigned to the client. The client holds no keys and moves those tokens only through this API; each sub-account's shares and tcbUSD are book entries against what that wallet holds.",        "INTEGRATION_AGREEMENT_ONLY: Fees as published on the rate card; no yield share, no return commitment."      ],      "summary": "This is a pilot integration on a testnet. Nothing in this system earns anything: the yield is simulated and the fiat rails are mocked.",      "version": "2026-10-27"    },    "extensibility": {      "extensible": false,      "reason": "OWNERSHIP_NOT_PROVEN"    },    "extensible": false,    "instrumentId": "1d7a9f42-6b05-4e83-a2c1-8f3b0d6e4c97",    "kind": "FIAT_BANK",    "last4": "3000",    "name": "Acme Supplies GmbH",    "networks": [      {        "addedAt": "2026-10-21T10:15:30.000Z",        "chain": "ARBITRUM",        "id": "4f0c2a91-7d3e-4b58-9a16-2e8d5c7b0f34",        "screening": {          "at": "2026-09-02T10:15:30.000Z",          "result": "CLEAR"        },        "status": "ACTIVE"      }    ],    "ownership": {      "at": null,      "proven": false    },    "rail": "SEPA",    "reachableChains": [      "ETHEREUM",      "POLYGON",      "ARBITRUM"    ],    "screening": {      "status": "CLEAR"    },    "status": "PENDING_APPROVAL",    "usable": false,    "usableAt": null,    "warnings": [      {        "code": "LOOKALIKE"      }    ]  },  "success": true,  "timestamp": "2026-09-02T10:15:30.000Z"}