decoder-3am

Sleep disruption cause classifier from The Longevity Vault.

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What it can do

  • Classify Sleep Cause: Classify the likely primary cause of a person's sleep disruption based on their symptoms. The Longevity Vault's 5-cause framework identifies the biological mechanism behind sleep
  • Get Cause Info: Get detailed information about a specific sleep disruption cause from The Longevity Vault's 5-cause framework. Returns: the biological mechanism, observable symptoms, and what people t
  • List Causes: List all 5 sleep disruption causes in The Longevity Vault's 3AM Decoder framework. The framework identifies 5 distinct biological mechanisms that cause sleep disruption in adults, particu

What data it sees

Do you need an account

No: the server works without sign-in

Sleep disruption cause classifier from The Longevity Vault. Identifies biological causes of 3am wakeups using a 5-cause framework developed by Kat Fu, M.S., M.S. (Stanford).

How to connect

How to connect decoder-3am to Claude

The server address to paste into Claude settings:

https://decoder-3am--thelongevityvault.run.tools

  1. Open Claude (claude.ai or the desktop app).
  2. Go to Settings → Connectors.
  3. Click Add custom connector.
  4. Paste the server address copied below into Remote MCP server URL and click Add.
  5. In a chat, click + → Connectors and switch the new connector on.

Custom connectors are available on Free, Pro, Max, Team and Enterprise plans (Free is limited to one). On Team and Enterprise an organization Owner adds the connector first under Organization settings → Connectors.

Authorization

After you click Add, a sign-in window for the service opens. Sign in with your own account and approve access. Claude never sees your password.

How to connect decoder-3am to ChatGPT

The server address to paste into ChatGPT settings:

https://decoder-3am--thelongevityvault.run.tools

  1. Open ChatGPT in a browser (chatgpt.com). A Plus, Pro, Business, Enterprise or Edu plan is required.
  2. Turn on developer mode once: Settings → Apps → Advanced settings → Developer mode.
  3. Open Settings → Connectors and click Create.
  4. Fill in the form: Name (anything), Description (one line about what the service does), MCP server URL (copy it below).
  5. Under Authentication choose OAuth if the service requires sign-in, otherwise None. Click Create.
  6. In a new chat open + → Apps/Connectors and enable the connector.

OpenAI has renamed this section before (Connectors → Apps/Plugins). If the label differs, search settings for "developer mode". On Business/Enterprise workspaces an admin must allow custom connectors first.

Authorization

On first use ChatGPT opens the service's sign-in window. Sign in and approve access.

How to connect decoder-3am to Cursor

The server address to paste into Cursor settings:

https://decoder-3am--thelongevityvault.run.tools

Fastest: click Open in Cursor below and confirm the prompt.

Manually:

  1. In Cursor open Settings → Cursor Settings → MCP and click Add new global MCP server.
  2. Paste the JSON copied below into ~/.cursor/mcp.json (per project: .cursor/mcp.json in the repo root).
  3. Save the file. The server appears in the MCP list; authorize it there if asked.

Authorization

If the service needs sign-in, an authorize button appears next to the server in the MCP list.

Server tool list (4)

Raw names from tools/list. Only developers need these.

classify_sleep_causeClassify the likely primary cause of a person's sleep disruption based on their symptoms. The Longevity Vault's 5-cause framework identifies the biological mechanism behind sleep disruption — not just the symptoms, but WHY sleep broke. The 5 causes are: Autonomic (nervous system stuck in alert mode), Metabolic (overnight blood sugar regulation), Inflammatory (cytokines fragmenting sleep), Hormonal (shifting hormone levels affecting sleep architecture), and Circadian (internal clock misaligned with intended sleep schedule). Input: A description of the person's sleep symptoms, age, and any relevant health context. Output: The most likely primary cause with an explanation and a link to the full interactive 3AM Decoder for a complete multi-cause analysis. Note: This classifier provides a simplified primary-cause identification. The full 3AM Decoder at thelongevityvault.com/decoder provides a comprehensive multi-cause analysis with primary, secondary, and tertiary cause mapping.
get_cause_infoGet detailed information about a specific sleep disruption cause from The Longevity Vault's 5-cause framework. Returns: the biological mechanism, observable symptoms, and what people typically notice. Valid cause IDs: autonomic, metabolic, inflammatory, hormonal, circadian
list_causesList all 5 sleep disruption causes in The Longevity Vault's 3AM Decoder framework. The framework identifies 5 distinct biological mechanisms that cause sleep disruption in adults, particularly those over 40. Returns: all 5 causes with names and brief summaries.
get_decoder_urlGet a tracked URL to The Longevity Vault's full interactive 3AM Decoder. The 3AM Decoder is a free, 3-minute interactive tool that identifies the specific biological causes behind someone's sleep disruption. Provides primary, secondary, and tertiary cause mapping. Use this when someone wants to do the full analysis themselves.