Unstoppable Finance (Iron)

Unstoppable Finance (Iron) Addresses API

Wallet and bank account registration Every wallet address that interacts with Iron must be registered (linked) to a customer **before** it can be used in any flow — onramp, offramp, or swap. This is a regulatory requirement under the **Travel Rule**, which obliges Virtual Asset Service Providers to exchange originator and beneficiary information for crypto transfers. Iron supports two wallet types: - **Self-hosted wallets** — the customer controls the private key. Registration requires a signed proof-of-ownership message. - **Hosted wallets** — the wallet is custodied by another VASP (e.g. Coinbase, Kraken). Registration requires the VASP's DID so Iron can exchange travel-rule data with the custodian. Similarly, fiat bank accounts must be registered before they can receive offramp payouts.

GitHub OpenAPI

Operations 17

POST /addresses/crypto/attested Register a self-attested wallet address #
POST /addresses/crypto/hosted Register a hosted wallet address #
GET /addresses/crypto/hosted/vasps Search hosted wallet providers (VASPs) #
POST /addresses/crypto/selfhosted Register a self-hosted wallet address #
GET /addresses/crypto/{customer_id} Get all registered wallet addresses #
PUT /addresses/crypto/{id}/disabled Update the disabled status of a verified crypto address #
GET /addresses/fiat Get all fiat addresses with status #
POST /addresses/fiat Register a fiat bank account for a customer #
GET /addresses/fiat/{customer_id} Get all fiat addresses / bank accounts #
DELETE /addresses/fiat/{customer_id}/{fiat_address_id} Delete a fiat address #
GET /addresses/fiat/{customer_id}/{fiat_address_id} Get a specific fiat address #
POST /addresses/fiat/{id}/retry-auth Retry Authentication #
POST /addresses/pix Register a PIX destination for a customer #
GET /addresses/pix/{customer_id} Get a customer's PIX destinations #
DELETE /addresses/pix/{customer_id}/{pix_address_id} Delete a PIX destination #
GET /addresses/pix/{customer_id}/{pix_address_id} Get a specific PIX destination by ID #
GET /country_subdivisions/{country_code} Get country subdivisions #

Documentation

📖
Documentation
https://docs.iron.xyz/overview
📖
APIReference
https://docs.iron.xyz/reference-sandbox/addresses/register-a-self-attested-wallet-address

Specifications

⚙
OpenAPI
https://raw.githubusercontent.com/api-evangelist/unstoppable-finance/refs/heads/main/openapi/unstoppable-finance-addresses-api-openapi.yml

Other Resources

🔗
APIsJSON
https://raw.githubusercontent.com/api-evangelist/unstoppable-finance/refs/heads/main/apis.yml

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OpenAPI Specification

unstoppable-finance-addresses-api-openapi.yml Raw ↑ 
openapi: 3.2.0
info:
  description: The Stablecoin Payment Network
  title: Iron API - Sandbox Addresses API
  version: 1.0-16988
servers:
- url: https://api.sandbox.iron.xyz/api
tags:


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# Full source: https://raw.githubusercontent.com/api-evangelist/unstoppable-finance/refs/heads/main/openapi/unstoppable-finance-addresses-api-openapi.yml