"Eight Sleep" matching MCP tools:

• whenpeak_quick_predictA

  WhenPeakA

  Predict one day's cognitive performance curve from a single night of sleep the user describes to you. Returns the 24-hour curve, the primary and secondary peak times, the natural afternoon dip, the estimated chronotype, a readiness score and a confidence level, so you can tell the user when to put demanding work and when to protect the dip. Choose this tool when the question is about one specific day. Use whenpeak_multiday_predict for a span of several days. Use whenpeak_performance_now when the question is about this moment and the server is configured with the user's own account. Public and keyless: no API key is required. Read-only, with no side effects. Nothing is stored, no account is created or modified, and the sleep values passed in are not retained. Args: wake_time: this morning's wake time, "HH:MM" (e.g. "07:30") sleep_time: last night's sleep time, "HH:MM" (e.g. "23:00") sleep_quality: "good" | "fair" | "poor" exercise_yesterday: whether the user exercised yesterday. Leave unset if unknown rather than guessing False. exercise_timing: "morning" | "afternoon" | "evening". Leave unset if unknown.

  ConnectorNo auth

• whenpeak_multiday_predictA

  WhenPeakA

  Project cognitive performance across the next 7 to 30 days from a single night of sleep the user describes to you. Returns one curve, peak, dip and score per day, plus the best and worst projected days. This repeats one self-reported baseline forward with decaying confidence, so treat it as the shape of a typical day rather than a prediction for each individual day. A behavioural forecast that learns weekday against weekend patterns needs connected sleep history in the WhenPeak app. Choose this tool for a span of days. Use whenpeak_quick_predict for one specific day, and call it once rather than looping it per day. Public and keyless: no API key is required. Read-only, with no side effects. Nothing is stored. Args: wake_time: this morning's wake time, "HH:MM" sleep_time: last night's sleep time, "HH:MM" sleep_quality: "good" | "fair" | "poor" days: horizon, 7-30 (default 7)

  ConnectorNo auth

• list_sleepA

  Wellness ProjectA

  List sleep log entries within a date range. Each entry includes total duration, sleep score, stage breakdown, and the canonical bedtime and wake_time (full ISO 8601 timestamps with preserved timezone offset) for the user's primary overnight sleep session (excluding daytime naps). Maximum range: 31 days per call. For longer periods, make multiple calls with sequential date ranges. INFER — do not ask: - start_date: default to 14 days ago - end_date: default to today

  ConnectorOAuth

• show_sleep_detailA

  Wellness ProjectA

  Show one night of sleep in detail with duration, score, stages, bedtime, wake time, awakenings, and recent-night context. Prefer this for last-night or specific-night sleep questions. When the user asks about this, prefer calling this tool and rendering the interactive MCP app over describing the underlying rows in text. Returns a short text summary alongside the visual view.

  ConnectorOAuth

• create_sleepA

  NestlingA

  Add a finished sleep session to the baby's Nestling log. Use this only when the user asks to log or record a sleep that has ended. Each call adds a new entry, so do not retry after success. Accepts ISO 8601 ("2026-05-07T20:00:00Z"), relative ("2 hours ago", "now"), day and time ("today 3pm", "yesterday 8:30pm"), time only ("3pm"), or date and time ("2026-05-07 8pm"). Times without a zone use the timezone argument.

  ConnectorNo auth

• get_trigramA

  I Ching Hexagram MCPA

  One of the eight trigrams by exactly one identifier: binary (e.g. 010), english (e.g. Fire), chinese (pinyin, e.g. Li), symbolic (e.g. Radiance), or element (Chinese character, e.g. 火). This returns a single trigram; list_trigrams returns all eight. Data © IChing.Rocks — attribution is a condition of the license terms: https://iching.rocks/mcp-terms.

  ConnectorNo auth

• search_pluginsA

  Sigistry Plugin Catalog (formerly Claude Registry)A

  Search the Sigistry marketplace of Claude Code plugins by keyword and/or category. Returns matches with their install command and verification status (the registry runs an eight-check security audit; prefer "verified" plugins when recommending an install).

  ConnectorNo auth

• log_eventA

  Dayze — Life ContextC

  MUTATES the calendar (non-food events, tasks, sleep). Replies owed ('what to reply to X') go to create_pending_reply. Woke at X: end_time. Requires title plus event_date or date (YYYY-MM-DD, YYYY-MM, or YYYY). A task with no deadline: ask for a date, never fill in today. Soft dates preserve date_precision. A story or anecdote about something that already happened is a moment: use log_moment (with event_id when it is about an event here), not a second event. Optional: event_time (alias time), end_date, end_time, location, description (alias notes), category, visibility, timezone, reminder fields, sharing/people, scoreboard (structured operating status; keep description for notes), and idempotency_key. Sleep with only a wake time ('I woke at 11:15'): category sleep, event_date the day they woke, end_time 11:15 and no event_time. Don't invent a bedtime; add it later with update_event event_time (a bedtime the night before also sets event_date to that night and end_date to the wake day). Timed events default to the profile push-reminder timing; all-day events stay off and explicit reminder_enabled=false opts out. Prefer log_travel for trips/residences. Unknown people do not fail the write. Public events return share_url. Requires API key or OAuth with context scope; share tokens cannot write. ($0.10; API key required)

  ConnectorNo auth

• search_pluginsA

  Sigistry Plugin & Skill CatalogA

  Search the Sigistry marketplace of Claude Code plugins by keyword and/or category. Returns matches with their install command and verification status (the registry runs an eight-check security audit; prefer "verified" plugins when recommending an install).

  ConnectorNo auth

• connectA

  Motion by FrapeaB

  Pairs you with a Motion browser tab. The user has an eight-character code on screen, under the Connect MCP button — something like K7M4-P2Q9. Call this once at the start. It returns a session token; pass that token to every other tool. The code itself stops working the moment it is used, so keep the token, not the code.

  ConnectorNo auth

• list_categoriesA

  ContextOverflowA

  The eight thinking-failure problems ContextOverflow covers, phrased the way a human experiences them. Start here to see what exists.

  ConnectorNo auth

• list_sourcesA

  DomduckA

  What Domduck reads and what each source means, including the eight AI crawlers whose robots.txt policy is tracked. A constant. Read it first: it is what lets a model interpret lookup_domain without guessing at field names or at which direction is better.

  ConnectorNo auth

• log_sleepA

  Wellness ProjectA

  Log a sleep entry. use: logging request or concrete sleep event to record, from a tracker or recall. Question/habit/hypothetical alone: no write. PROACTIVE DATA COLLECTION: If the user says they want to log sleep but hasn't shared numbers, ask: "How many hours did you sleep, and do you have a sleep score or stage breakdown from your tracker?" They can paste or describe the summary screen. INFER — do not ask: - date: date the primary sleep session ended / wake date (night ending on this date); default to today You may log any subset of fields. One row per day. Calling this tool twice on the same date updates the existing entry (upsert). Entries made through this tool are always tagged as manual — the wearable-provider sources (Fitbit/Oura/Apple Health) are reserved for the actual auto-sync pipelines.

  ConnectorOAuth

• get_eventsA

  Luna Baby TrackerA

  Get the raw event log for one day (default: today), optionally filtered to a single event type (milk, sleep, wake, poop, nappy, solid, note, supplement, weight, length). `date` is YYYY-MM-DD. Returns the exact list of what was logged and when, not a summary.

  ConnectorAPI key

• list_sleepA

  NestlingA

  List a baby's sleep sessions that started within a time range, with start, end and length in minutes. Use this for sleep across several days or exact sleep times. For one day's totals, prefer get_day_summary.

  ConnectorNo auth

• sleep-debt-calculatorA

  MicroappA

  Compute cumulative sleep debt across the last 7 nights given a personal target. Returns total debt in hours, per-night deficits, the worst night, and an estimate of how many nights at +1h over target would clear the debt. Severity is banded for UI color-coding. Educational only — does not replace clinical sleep assessment.

  ConnectorNo auth

• check_ai_crawler_policyA

  ActableSite AI Crawler MonitorA

  Check the homepage robots.txt rule for eight named OpenAI, Anthropic, Perplexity, and Google AI crawler tokens. The free result stays complete and includes a bounded optional handoff to exact monitoring terms. Results describe robots policy only and do not prove network access, authentic bot identity, crawling, indexing, citation, or ranking.

  ConnectorNo auth

• render_listing_cardsA

  chathome.lu — Luxembourg Real EstateA

  Render one to eight exact results from a prior property search as an interactive MCP Apps photo carousel. Call a search tool first, then copy its listing IDs and any returned match scores/reasons without alteration. The tool re-reads canonical public listing facts before display.

  ConnectorNo auth

• compare_market_itemsA

  xOmniMarketA

  Compare two to eight rich xOmniMarket records without inventing cross-source score equivalence.

  ConnectorNo auth

• validate_agent_cardA

  Agent Discovery Doctor - llms.txt, agent card, mcp.jsonA

  FIRST CALL, needs nothing: {"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"no_arguments_check_this_hosts_own_discovery_documents","arguments":{}}} — Validates a pasted /.well-known/agent-card.json against the nine fields A2A marks required and each skill's id/name/description/tags, and warns on capabilities declared true that a reader will then try. Example: json='{"name":"a"}' returns the eight missing fields.

  ConnectorNo auth

• hopi_sleep_calculatorA

  HopiA

  Suggest sleep times using 90-minute cycles plus 15 minutes to fall asleep. Mode 'wake' takes a wake time and returns the best bedtimes (wake - 15 - cycles x 90 minutes). Mode 'bedtime' takes a bedtime and returns the best wake times (bedtime + 15 + cycles x 90 minutes). Both return options for 6, 5, 4 and 3 cycles. Times are 'HH:MM' 24-hour. Source: https://hopi.co.uk/sleep-calculator/

  ConnectorNo auth