> For the complete documentation index, see [llms.txt](https://docs.opencollective.com/help/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.opencollective.com/help/contributing/development/transferwise.md).

# TransferWise

Technical details about how we implement TransferWise and how to get started developing with it.

TransferWise integration can be used to automate expense payment as a way to provide one-click wire transfer for expenses.

## Strong Customer Authentication

In order to create a new `TRANSFERWISE_PRIVATE_KEY` you'll need to generate a new key pair:

```
openssl genrsa -out private.pem 2048
openssl rsa -pubout -in private.pem -out public.pem
```

After that, you can encode the private key using **base64** and save it as an environment variable:

```
TRANSFERWISE_PRIVATE_KEY=$(cat private.pem | base64 -w 0)
```

## Developer Sandbox

### API Token

1. [Sign up for a developer account sandbox](https://sandbox.transferwise.tech/register).
   * Two-factor authentication (2FA) code for sandbox login is 111111.
2. [Go to settings](https://sandbox.transferwise.tech/user/settings).
3. Add a new Token.
4. Done, now you can copy your token!

### Connect Account to your Host

1. Manually create a ConnectedAccount with generated `clientId` and `clientSecret`:

   ```sql
   INSERT INTO "ConnectedAccounts" ("service", "token", "CollectiveId")
   VALUES (E'transferwise', token, hostCollectiveId);
   ```

   * We're currently defaulting to your Business profile if two profiles exists. If you have two profiles and want to use your personal one, make sure to add `{ "type": "personal" }` to the `data` column of the created Conencted Account.


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation by asking a question.

Perform an HTTP GET request on the following URL with the `ask` and `goal` query parameters:

```
GET https://docs.opencollective.com/help/contributing/development/transferwise.md?ask=<question>&goal=<user_goal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is what the user is ultimately trying to achieve, the reason they need the answer. Sharing it helps GitBook give you a better, more relevant answer. A goal is most helpful when it describes the outcome the user wants rather than restating the question. For example, with `ask=how do I create an API token`, a goal like `automate deployments from our CI pipeline` lets GitBook tailor the answer to that use case.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.