SchwabOAuth

Overview

This innovative solution addresses one of the most persistent challenges in OAuth authentication automation.

Instead of building on top of browser automation layers, this solution takes a first-principles approach and rethinks the problem from the ground up. It is powered by a pure native engine with no third-party frameworks or runtime dependencies.

Built in C/C++, the implementation is lightweight, fast, and highly efficient, delivering a streamlined authentication workflow without the complexity and maintenance overhead.

⚡ Fully Automated OAuth Authentication for Schwab

Most current solutions rely on:

• manual browser interaction
• Playwright
• Selenium
• Puppeteer
• undetected_chromedriver
• authorization-code copy/paste workflows
• periodic manual re-login

SchwabOAuth takes a fundamentally different approach.

What Makes SchwabOAuth Different

✅ No manual authorization pause

Existing solutions typically require users to:

1. pause automation
2. manually retrieve authorization code
3. resume token refresh process

SchwabOAuth eliminates this workflow entirely.

✅ Pure native engine

• No browser automation frameworks
• No third-party browser control dependency

✅ Seamless token lifecycle

• automatic login
• automatic token refresh
• automatic token renewal
• no periodic manual intervention required

This architecture enables a significantly smoother long-running automated trading workflow.

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Prerequisites

1. Microsoft Visual C++ Runtime (x64)

SchwabOAuth requires the Microsoft Visual C++ Redistributable Runtime for x64 Windows systems.

Download from Microsoft:

Microsoft Visual C++ Redistributable (x64)

Supported platforms:

• Windows 10 x64
• Windows 11 x64

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2. Approved Schwab Developer Application

You must have an approved developer application from Charles Schwab Developer Portal in order to obtain:

• App Key (Client ID)
• App Secret
• Callback URL

These values must be configured within your app before authentication can function properly.

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3. Regular Schwab Brokerage Account

A standard Schwab brokerage account is required for automated login.

You will need:

• Schwab username
• Schwab password

⚠️ Note:

• This is NOT the Schwab developer portal account
• The developer account alone cannot be used for trading authentication
• OAuth authentication must be performed against a regular brokerage account

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4. Usage

If you have multiple trading accounts and need to select a specific one, you can configure this using config.xml.

Place the file in:

C:\ProgramData\OAuth

Otherwise, the first account will be used by default.

⚠️ Currently, only one account is supported.

Example configuration:

<Config>
	<AccountIndex>
		<Value>0</Value>
	</AccountIndex>
</Config>

Account indexing is zero-based:

• 0 = first account
• 1 = second account
• 2 = third account
• etc.

If an invalid account index is specified, authentication or token generation may fail.

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Disclaimer

This project is intended for educational and research purposes only.

Users are responsible for complying with:

• Schwab API Terms of Service
• OAuth provider policies
• trading regulations and brokerage agreements

Use at your own risk.

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Screenshot

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Related contribution

TrailCapture, GUI implementation of the same authentication