Liminality

Breaks a hard question or decision into grounded sub-questions and returns a checkable route.

ai.physea/liminality · Repository · Website · version 1.0.4 · 0 stars · listed from registry

Install

Hosted endpoint, so there is nothing to install. The probe connects straight to it:

https://liminality.physea.ai/mcp

Needs credentials: X-API-Key. The probe used placeholder values, so an amber needs credentials result below means the server asked for the real ones, not that it is broken. Maintainers: how to go green.

Results by platform

Linux

needs credentials2026-08-15 · probed over remote-http

4 recorded runs, oldest first.

handshake failed: HTTP 401: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","id":0,"error":{"code":-32001,"message":"No API key. Send it as the X-API-Key header (e.g. claude mcp add ... --header \"X-API-Key: <key>\"). Get a key at https://physea.ai/mcp.","data":{"reason":"api_key_required","auth_code":"E_NO_KEY","onboarding":{"product":"Liminality decomposes and routes hard questions for agents.","free_solves":50,"offer":"First 50 solves are free.","example":{"question":"Which vector database should we use for our RAG pipeline given our latency, cost, and self-hosting limits?","without":"The agent guesses a plan from memory and starts over on every ask.","with":"Broken into four sub-questions (latency, cost, ops burden, lock-in), each tied to a real source, then scored into one route you keep and reuse instead of re-deriving it."},"signup_url":"https://physea.ai/mcp","how_to_get_a_key":"Sign up at https://physea.ai/mcp to get a free key, then send it as the X-API-Key header on your /mcp requests."}}}} (endpoint reachable but requires credentials the harness does not send)

macOS

needs credentials2026-08-15 · probed over remote-http

4 recorded runs, oldest first.

handshake failed: HTTP 401: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","id":0,"error":{"code":-32001,"message":"No API key. Send it as the X-API-Key header (e.g. claude mcp add ... --header \"X-API-Key: <key>\"). Get a key at https://physea.ai/mcp.","data":{"reason":"api_key_required","auth_code":"E_NO_KEY","onboarding":{"product":"Liminality decomposes and routes hard questions for agents.","free_solves":50,"offer":"First 50 solves are free.","example":{"question":"Which vector database should we use for our RAG pipeline given our latency, cost, and self-hosting limits?","without":"The agent guesses a plan from memory and starts over on every ask.","with":"Broken into four sub-questions (latency, cost, ops burden, lock-in), each tied to a real source, then scored into one route you keep and reuse instead of re-deriving it."},"signup_url":"https://physea.ai/mcp","how_to_get_a_key":"Sign up at https://physea.ai/mcp to get a free key, then send it as the X-API-Key header on your /mcp requests."}}}} (endpoint reachable but requires credentials the harness does not send)

Windows

needs credentials2026-08-15 · probed over remote-http

4 recorded runs, oldest first.

handshake failed: HTTP 401: Streamable HTTP error: Error POSTing to endpoint: {"jsonrpc":"2.0","id":0,"error":{"code":-32001,"message":"No API key. Send it as the X-API-Key header (e.g. claude mcp add ... --header \"X-API-Key: <key>\"). Get a key at https://physea.ai/mcp.","data":{"reason":"api_key_required","auth_code":"E_NO_KEY","onboarding":{"product":"Liminality decomposes and routes hard questions for agents.","free_solves":50,"offer":"First 50 solves are free.","example":{"question":"Which vector database should we use for our RAG pipeline given our latency, cost, and self-hosting limits?","without":"The agent guesses a plan from memory and starts over on every ask.","with":"Broken into four sub-questions (latency, cost, ops burden, lock-in), each tied to a real source, then scored into one route you keep and reuse instead of re-deriving it."},"signup_url":"https://physea.ai/mcp","how_to_get_a_key":"Sign up at https://physea.ai/mcp to get a free key, then send it as the X-API-Key header on your /mcp requests."}}}} (endpoint reachable but requires credentials the harness does not send)

Badge

Paste this into the project README to show the current result:

[![does it install](https://img.shields.io/endpoint?url=https://doesitinstall.com/badge/ai.physea__liminality.json)](https://doesitinstall.com/s/ai.physea__liminality.html)