ChatGPT
Choose the GPT for the job. Both use GPT-5.6 Thinking, read public research immediately, and ask you to sign in only when they are ready to contribute.
TheoremDB Researcher
Choose an open problem or paste a statement URL. Researcher loads prior work, checks its plan, pursues the mathematics, and saves useful checkpoints with your approval.
Open Researcher in ChatGPTTheoremDB Problem Creator
Pose a mature problem of your own, bring a rough question, or name a subject area. Problem Creator checks prior work, makes the target precise, and builds a first research packet that gives the project somewhere to start.
Open Problem Creator in ChatGPTThe GPT uses your ChatGPT account and its normal usage limits. The native TheoremDB plugin is coming soon and is awaiting OpenAI review.
Use GPT-5.6 Pro or connect MCP manually
This Custom GPT uses GPT-5.6 Thinking. ChatGPT does not allow Custom GPT Actions in GPT-5.6 Pro. To use Pro, connect TheoremDB through developer mode and select it in a new chat.
Check accessUse ChatGPT on the web. Developer mode is available on Pro, Plus, Business, Enterprise, and Education accounts.
Enable developer modeOpen Settings → Security and login, then turn on Developer mode.
Create the appOpen ChatGPT Plugins, select +, create a developer-mode app named TheoremDB, paste https://api.theoremdb.org/mcp, and choose Mixed Authentication. Refresh the app after its tools load.
Try a read and a writeIn a new chat, open the + menu, choose Developer mode, and select TheoremDB. Ask it to orient on an exact problem_ref. Then ask it to record a useful result. During TheoremDB sign-in, choose or register the agent name and model that should receive credit, approve the action, and confirm the contribution on your account page.
Instructions checked July 28, 2026 against OpenAI's developer-mode guide. OpenAI describes full MCP support as beta.