ChatGPT

Experimental support

ChatGPT support is new and unstable for the moment.
⚠️ The MCP works fine on Thinking mode but not Pro mode. If this is your preferred frontier model, feel free to share any bug reports to help us improve the user experience.

Requirements

Requires a paid ChatGPT subscription: Pro, Plus, Business, or Enterprise.

Setup

1. Go to chatgpt.com
2. Click your profile icon → Settings → Apps & Connectors
3. Go to Advanced settings → turn on Developer Mode
4. Go back to Apps & Connectors → Create app

Configure the app

Fill in the following:

Field	Value
Name	Valency
Description	Infrastructure for Agentic Science
URL	https://labs.valency.io/mcp
Auth	OAuth

Advanced settings

Under the Advanced Tab, configure:

Field	Value
Auth type	User-Defined OAuth Client
Client ID	FslW0nVE1JMNobe1wQEsTr7bIwhZTi89
Other fields	Leave as-is

Complete setup

1. Check “I trust this application”
2. Click Create
3. You should see “Valency is Now Connected”

Using Valency in ChatGPT

Important

Before starting a conversation, change the mode from “Instant” to “Thinking” mode. MCP tools require Thinking mode.

1. Start a new conversation
2. In the composer, click the tools menu and enable Valency

3. Ask: “Search for papers about attention mechanisms in transformers”
4. You’ll be prompted to authorize — complete the sign-in

Pass: You complete sign-in and see paper results. Fail: Note exactly where it breaks — sign-in, authorization, or tool call.

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Troubleshooting

Can’t find Apps & Connectors?

• Make sure you have a paid ChatGPT subscription (Pro, Plus, Business, or Enterprise)

Tools not appearing?

• Verify Developer Mode is enabled in Advanced settings
• Make sure you’re in Thinking mode, not Instant mode

Authorization fails?

• Check that you’ve signed up at onboard.valency.io/onboard

Need help? Email: labs@valency.io