Pressure-test an idea: live research, five lenses, blind review, one verdict with every dissent.
FirstP runs an idea or business decision through a First Principles Council. A research desk searches the web and cites every fact; five analytical lenses each take a stance (go, go if, pivot, don't); the lenses rank each other's takes blind; and a chair makes the call, showing whether it was unanimous or split and listing every dissent. Follow-up tools build a 30-day action plan and an execution kit with an interview script, real places to find customers, and a live smoke-test landing page that collects signups. Includes a Law Firm Council for plaintiff-side PI and mass tort decisions. Lenses are analytical frameworks, not real people. Not legal, financial or investment advice.
Try asking Muse: "Run my idea for a subscription box of Nordic specialty coffee through the FirstP council, then build the execution kit."
First listed September 25, 2026
Each bar is one check, every 15 minutes. Green means it answered. Last checked 5 h ago.
What Muse can see: It does not ask you to sign in, so it cannot see your accounts. It only sees what Muse sends it from your request.
Before it acts: Read what Muse plans to do before you approve it, and remove the app from Muse when you stop using it.
Who runs it: the team behind this site.
musedirectory.ai is not part of Meta. More about how Muse handles your information
Not in Muse's Connectors list yet, but Muse can still use it. Copy the request below and paste it into Muse. Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
https://firstp.ai/mcpNot in Muse's Connectors list yet. Muse can still use it: its page gives you a request to paste into Muse.
FirstP — First Principles Council is a remote MCP server, so any assistant that can add a custom connector by link can use it. Same link, same tools.
In ChatGPT, open Settings, then Connectors (called Apps & Connectors on some accounts).
Under Advanced settings, switch on Developer mode. That is what lets you add a connector by link.
Choose Create, give it a name, paste the link as the MCP server URL, and save. If it needs a sign-in, ChatGPT asks for it here.
Start a chat, open the tools menu, pick the connector, and ask. ChatGPT asks before it runs a tool the first time.
Custom connectors need a paid ChatGPT plan, and on Team, Enterprise and Edu accounts only an admin can add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in ChatGPT
In Claude, open Settings, then Connectors.
Choose Add custom connector, give it a name, and paste the link.
If it needs a sign-in, Claude sends you to it. Then turn the connector on in a chat from the tools menu and ask.
Custom connectors are available on paid Claude plans; on Team and Enterprise accounts an admin may need to add them. Our "Working" label means the server answered us; it cannot tell whether your plan lets you add it. All connectors that work in Claude
https://firstp.ai/mcpResponse time at the last check: 229ms. Worked in 99.5% of checks over 30 days.
Screened, no issues found
Screening looks for known threats and hidden instructions at the time of the check, and runs again weekly and whenever the tool list changes. It cannot see the server's code, so only connect what you need and review what Muse asks to do. How screening works.
convene_councilRun an idea or decision through FirstP's First Principles Council: live web research with cited sources, five analytical lenses (not real people) that each take a stance, a blind peer review where the lenses rank each other's takes, and a chair's verdict that shows consensus or task_lensAsk one lens from a finished council a follow-up question. Founder lenses: physicist, skeptic, customer, editor, contrarian. Law firm lenses: economist, intake, client, ethics, docket.build_execution_kitFor a finished council, build the execution kit for the first move: who to interview and a 5-question script, real places to find them, a live smoke-test landing page on firstp.ai that collects signups, the day-30 go/no-go metric, and what to report on day 7.build_action_stackFor a finished council, build a 30-day week-by-week action plan and a one-page investor memo.get_planFetch a saved council plan by plan_id: research, each lens's take and stance, the peer-review ranking, the verdict and any execution kit.https://firstp.ai/mcpNot in Muse's Connectors list yet, but Muse can still use it. Paste this into Muse: "Use FirstP — First Principles Council to help me. It is a free service with an MCP server at https://firstp.ai/mcp. It does not need an API key. Ask me before you share anything with it." Muse asks before it shares anything with the app's site. Meta does not review apps used this way, so only use ones you trust. We tested this in the Muse app on September 24, 2026: Muse used an app's link directly this way and returned a live answer.
At the last check (November 13, 2026, 09:00 UTC) the endpoint was working, answering in 229ms. Over the last 7 days it answered 100% of health checks. It is checked every 15 minutes.
It was screened on November 12, 2026 with the result "screened, no issues found". Screening checks the domain against threat feeds and reads the tools for hidden instructions and requests for passwords or card numbers. It cannot see the server's code, so grant only the access you need.
Yes. The connector is free to use. Your Muse plan and any account with FirstP.ai are separate.
It exposes 5 tools, including convene_council, ask_lens, build_execution_kit, build_action_stack. For example, you could ask Muse: "Run my idea for a subscription box of Nordic specialty coffee through the FirstP council, then build the execution kit."
Paste this on your site or README. It always shows the latest check.
<a href="https://musedirectory.ai/connector/firstp"><img src="https://musedirectory.ai/badge/firstp.svg" alt="FirstP — First Principles Council on musedirectory.ai" width="236" height="40"></a>