> ## Documentation Index
> Fetch the complete documentation index at: https://sammydocs.mintlify.site/llms.txt
> Use this file to discover all available pages before exploring further.

# Source and scope

> Version, evidence, and precedence rules for this independent Connect.js guide.

This is an independent documentation project for `@mono.co/connect.js`. It is not Mono's official documentation.

## Verification record

| Field           | Value                                      |
| --------------- | ------------------------------------------ |
| Package         | `@mono.co/connect.js`                      |
| Package version | `2.2.0`                                    |
| Source branch   | `develop`                                  |
| Source commit   | `7fb3b7b36f8c57ea29c7baa55259bdacee4b28f8` |
| Last verified   | July 22, 2026                              |

The guide was checked against the public [Connect.js implementation](https://github.com/withmono/connect.js), its README, and Mono's official API documentation.

## Precedence

Use this order when sources disagree:

1. Mono's current [official documentation](https://docs.mono.co/docs/financial-data/overview) for production behavior and API policy.
2. The current [Connect.js source](https://github.com/withmono/connect.js) for SDK signatures and browser behavior.
3. This guide for explanation and implementation examples.

<Warning>
  Payment capabilities, required customer fields, and API behavior can change independently of the JavaScript package. Verify production payment and financial-data integrations in Mono's official documentation.
</Warning>

## Documentation conventions

* `PUBLIC_KEY` means a Mono public key that may be used in browser code.
* `MONO_SECRET_KEY` means a secret that must remain on your backend.
* `code` means the short-lived value returned to `onSuccess` after account linking.
* `accountId` means the Mono account identifier returned after the backend exchanges that code.
* Examples use `scope: "auth"` explicitly for account linking.
* Reauthorization examples pass an `accountId` to `reauthorise()`. They do not pass a reauth token.

## Machine-readable access

Agents can discover the page index at [`/llms.txt`](https://sammydocs.mintlify.app/llms.txt), load the complete documentation from [`/llms-full.txt`](https://sammydocs.mintlify.app/llms-full.txt), and read the integration capability contract at [`/skill.md`](https://sammydocs.mintlify.app/skill.md). Individual Mintlify pages are also available as Markdown by adding `.md` to the page URL.