---
title: "ChatGPT Apps SDK: Bank Access via OAuth | BankBridge"
description: "Add your bank to ChatGPT the OAuth way. Find BankBridge under Settings, Connectors, Browse, sign in, and skip tokens and Developer Mode entirely."
url: "https://bankbridge.money/docs/chatgpt-apps-sdk"
---
[← All integrations](https://bankbridge.money/docs)

ChatGPT (Apps SDK)

# OAuth sign-in. No tokens.

This is the OpenAI-preferred install path. Settings → Connectors → Browse → BankBridge → OAuth. Works on ChatGPT web for Plus, Pro, Business, Enterprise, and Edu plans.

Step 01

## Find BankBridge in the directory.

ChatGPT → **Settings** → **Connectors** → **Browse**. Search for “BankBridge.” Click **Add**.

Note: BankBridge is working its way through OpenAI’s app review. If you don’t see it yet, use the [Developer Mode install](https://bankbridge.money/docs/chatgpt) meanwhile. Same server, same tools, just a different auth path.

Step 02

## Sign in via OAuth.

ChatGPT opens a BankBridge sign-in window. Enter your email, click the magic link, then **Allow** back in ChatGPT. No API key to copy, no token to paste.

Step 03

## Verify it works.

Start a new chat. Ask:

try this

```
how much did I spend on food last month?
```

ChatGPT surfaces BankBridge in the tools picker; enable it per-chat.

Apps SDK vs. Developer Mode

Two paths, same server. **Apps SDK** (this page) is OAuth-based, no token, approved app distribution. **Developer Mode**is Bearer-token, not gated by OpenAI review, but you have to paste a key. Apps SDK is the smoother path for end-users; Developer Mode is the escape hatch for devs who want to run BankBridge before OpenAI’s review completes.

Troubleshooting

Client connects but shows 0 tools.

Usually the client is caching an old config, or you're on a mode that doesn't expose tools (Ask/Edit vs Agent, for example).

**Fix:** Fully quit + relaunch the host app. In VS Code Copilot, switch to Agent mode.

401 Unauthorized on every call.

The API key is missing, typo'd, or got revoked. Check the Authorization header starts with \`Bearer \` (note the space) and ends in a key you still own.

**Fix:** Paste a fresh key from [Settings](https://bankbridge.money/dashboard/settings).

Tools return setup\_required.

Your BankBridge account has no active subscription yet, or it was canceled or is past due. The connection itself works; each tool answers with the link that finishes setup.

**Fix:** Visit [Settings](https://bankbridge.money/dashboard/settings) to start or restore your subscription, then connect a bank.

Tools return a NO\_CONNECTIONS warning.

You haven't linked a bank yet.

**Fix:** Visit [Connect a bank](https://bankbridge.money/dashboard/connect) . The bank-connect flow opens automatically, ~30 seconds.

Problems? Email [hello@bankbridge.money](mailto:hello@bankbridge.money).