Nefesh — Real-Time Human State Awareness for AI

ai.nefesh/human-state · v4.0.0

Has write/delete toolsNo registry update 90+ days

Measured by MCP Station

Last check	Reachable
Checked at	—
Check success 7 / 30 days	—
First-try success 30 days	—
Median response	—
Lookups 30 days	—
Authentication	No auth
MCP version	2025-06-18
Rank score	—
Declared risk	Has destructive tools (destructiveHint)
Capabilities declared	experimental, prompts, resources, tools
Tool definitions	7 tools · with description 100% · input schema is an object 100% · read/destructive hints 14%

Description written by the publisher, not verified

Fuses biometric signals into a stress score (0-100) for AI adaptation. MCP + A2A native.

Connect

streamable-http · https://mcp.nefesh.ai/mcp

claude mcp add --transport http human-state https://mcp.nefesh.ai/mcp

{
  "mcpServers": {
    "human-state": {
      "url": "https://mcp.nefesh.ai/mcp"
    }
  }
}

Tools as reported by the server

get_human_state
Get current unified human state for a session. Call this before generating important responses. Returns: - state: calm | relaxed | focused | stressed | acute_stress - stress_score: 0-100 (lower = calmer) - confidence: 0.0-1.0 (based on signal quality and device type) - suggested_action: maintain_eng
ingest
Send biometric signals from any sensor, get unified state back. Required: session_id + timestamp (ISO 8601) + at least one signal. Send whatever you have — the API fuses all signals into one state. Common signals (highest impact): - heart_rate (bpm, 30-220) + rmssd (ms) — cardiovascular - tone: calm
get_trigger_memory
Retrieve psychological trigger profile for a subject. Returns which conversation topics consistently cause stress (active triggers) and which have been resolved over time. - active triggers: topics where stress was elevated across multiple sessions. Tread carefully. - resolved triggers: topics where
get_session_history
Get state history for a session over time. Returns timestamped datapoints with stress_score, state, and heart_rate for each observation. Includes an overall trend: rising | falling | stable. Use minutes parameter to control the lookback window (default: 5, max: 60). Useful for detecting stress patte
delete_subject write/delete
Permanently delete all sessions and trigger memory for a subject. Irreversible. Only call when the user explicitly requests this deletion.
request_api_key
Start free API key authorization; no existing API key needed. Returns a verification_url. Ask the user to open that URL in their browser, enter their own email, then open the verification email and confirm access for their agent. This tool does not accept email addresses and does not send email. Do
check_api_key_status
Check a pending API key authorization using its request_id. Use request_id exactly as returned by request_api_key, never an email. Poll every 10 seconds. awaiting_user means the user must open the URL; pending means email verification is still required. ready returns the API key once only. Store it

Repository · JSON · Text for agents · Registry updated 2026-04-03