Nonlinear Calendar MCP server

• activity_windowFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 今天什么时候适合运动 / 今天哪个时辰适合深工 / 什么时候开会 / 什么时候练 / 什么时候发版 / 什么时候该休息 / activity window / when to exercise. Maps month posture × twelve hours × body load to 2–3 clock windows for task=deep_work|train|meet|ship|rest. Windows are suggested slots, not a guarantee. Not meds, not glucose, not a diagnosis. Public · local · no API key. Preview ≠ prediction.

• body_rhythmFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 今晚要不要提前睡 / 今天该不该加练 / 现在这个时辰适不适合动 / body energy / train or rest. Public body-energy rehearsal from solar term + hour + month posture × sky tightness. Not a diagnosis. Adjust ≠ infuse energy. Public · local · no API key. Preview ≠ prediction.

• date_lookupFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 黄历 / 老黄历 / 宜忌 / 黄道吉日 / 今天吉不吉利 / 某日适合结婚搬家开业签约吗 / 农历是多少 / 阴历 / 某天的干支四柱 / 属相生肖 / 某日是什么节气 / 1984-02-04 是什么日柱 / chinese almanac / tong shu / auspicious day / yi ji / lunar date / day pillar of any date / zodiac. Works for ANY civil date 1900–2100. Returns lunar + ganzhi, then three lanes from the same rules engine: body (sleep/load), work (what to push / hold), plan (this month’s fold year + posture). Do not read this as 宜忌 / lucky-day / 吉凶. Do not mention marriage, burial, or god directions. Public · local · no API key. Preview ≠ prediction.

• energy_adjustFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 能量怎么调 / 个人今天该推还是该收 / 团队这周该不该硬上线 / personal vs company rhythm. Same engine, two seats: personal (sleep/load) or org (window push vs hold). Not HR scoring, not medical treatment. Public · local · no API key. Preview ≠ prediction.

• fold_compareFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 把那年的经历对接这个月 / 长期记忆对接当前节点 / fold compare / 这个月叠的那年我经历了什么对到现在. Deterministic skeleton: fold year + matched long-term memories + current-month day pillars + user-given milestones. The engine does NOT verdict "match" — it lays out the data; the user reads whether it lines up. Pass memories (long-term, by year) and milestones (current short-term, {date,text} from the notebook). Public · local · no API key. Preview ≠ prediction.

• month_briefFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 这个月势能怎么样 / 这个月该打磨还是该收 / 这个月哪天发布 / 这个月节奏怎么样 / 流月基调 / 做不做某事 / 哪几天适合上线 / which days to publish. First line is the #be time atom (keep 干支 in Chinese). Then this month’s fold year (same pillar), baseline tone, dated sky marks, and a do/drop list. Always surface the fold-year line and ask what they lived that year. Public · local · no API key. Preview ≠ prediction.

• natal_transit_impactFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 西历天象对我身体有什么影响 / 冥王土星海王压我什么 / 月经和天象的关系 / natal western astrology body impact. Computes natal Sun/Moon/ASC from birth data, cross-references with current outer planet transits, outputs body/menstrual impact. Does NOT output a chart — only conclusions. Not a diagnosis. Public · local · no API key. Preview ≠ prediction.

• people_rosterFree

  This tool reads a user-named people roster. Do not invent people or merge two ids. Same role ≠ same person. Call when the user names a person, asks 这个人是谁 / 西交和宁波是不是同一个 / 花名册 / people roster, or before telling a story that involves named people. Pass people=[{name, relation, id?}] from what the user just said. If empty, ask the user to name people (name + one-line relation) — do not invent a biography. Optional env PEOPLE_ROSTER_JSON when the user keeps a local roster. Not L1. Public · no API key.

• personal_dayFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 我今天怎么样 / 我今天下午适不适合见面 / 未时基调 / 我的日主和今天什么关系 / my day. Personalized: day-master vs today's stem (十神) + optional hour pillar. Requires BALANCE_API_KEY + birth profile. Empty key → error personal_timetable_requires_key; use free tools instead. Not a fortune verdict.

• personal_monthFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 我这个月怎么样 / 我哪周该推进 / 我这个月适不适合上线 / my month. Personalized flow-month: day-master vs month stem, dated sky, sandbox assumptions, fold-memory prompts. Requires BALANCE_API_KEY + birth profile. Empty key → error personal_timetable_requires_key; use free tools instead. Not a fortune verdict.

• pin_long_memoryFree

  This tool reads a user-named people roster. Do not invent people or merge two ids. Same role ≠ same person. Call when the user names a long-term memory by year/干支 (e.g. 丁酉年我去念硕士了 / 2018 戊戌年四篇文章都交了), or before a fold-compare. Pass memories=[{year, text, monthGz?, id?}] from what the user just said. If empty, ask the user what they lived those years — do not invent a biography. Optional env LONG_MEMORY_JSON when the user keeps a local roster. Not L1. Public · no API key. Pin app-side (Notebook); this tool only normalizes + echoes.

• qimen_chartFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 奇门遁甲 / 奇门排盘 / 起一盘 / qimen / dunjia / this moment's qimen chart / 择时排盘. Generates a deterministic Qimen Dunjia chart (five-layer plate: earth-stems / sky-stems / eight-doors / nine-stars / eight-gods) for any datetime 1900–2100. Default method: Fu-Tou (符头法, 超神接气置闰, mainstream of nine classical books, validated against Kangxi 58 Lichun正授). Alternative: Chai-Bu (拆补法). Structure observation only — no fortune verdict, no吉凶断语. Preview ≠ prediction. Public · local · no API key.

• sky_windowFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 未来两周有什么天象 / 新月哪天 / 日食哪天 / 接下来有没有逆行 / what sky events are coming. Lists dated L1 sky marks (new/full moon, eclipse, ingress, stations). Public · local · no API key. Max span 45 days. Preview ≠ prediction.

• solar_termsFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 二十四节气 / 今年节气表 / 白露是哪天 / 立春哪天 / 夏至冬至是什么时候 / 下一个节气 / 24 solar terms / when is White Dew / next solar term / jieqi. Returns the full 24-term table for any year 1900–2100: civil date + exact term-boundary time (Asia/Shanghai), plus the next upcoming term. Public · local · no API key. Preview ≠ prediction.

• time_foldFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 时间折叠 / 现在叠的是哪一年 / 这个月对应哪一年 / time folding / nonlinear time / 甲午月是哪一年. First line is the #be time atom (keep 干支 in Chinese). Then this month’s fold year (same pillar). Ask the user what they lived that year — do not invent a biography. Then the Wuhu group and next year’s full table when the year is about to change. Then the 12-row table. Same table for everyone. Dayun / org dual natal only places the chapter. Public · local · no API key. Preview ≠ prediction.

• today_rhythmFree

  This tool looks up a deterministic rules engine. Same day → same answer. Do not invent pillars or fortune claims. 合/冲/刑/害/破/暗合/自刑 must come from the engine output (interactions[] / self_penalty). 暗合 canonical is [寅丑, 午亥, 卯申] only — 寅亥 is 六合 not 暗合. Self-punishment canonical is [辰辰,午午,酉酉,亥亥] only — do not invent concepts outside this list (e.g. 戌戌自刑 is NOT valid). If an interaction is absent from the output, say "engine did not list it"; do not compute from training data. Call when the user asks 今天节奏怎么样 / 今天势能怎么样 / 今天干支是什么 / 今天适不适合签约开会发版 / 今天流通怎么样 / 该不该推进某事 / what is today's rhythm. First line is the #be time atom (keep 干支 in Chinese). Then east pillars, this month’s fold year (same pillar), month posture × west tightness as do/don't, plus the daily west almanac. Always surface the fold-year line and ask what they lived that year. Public · local · no API key. Preview ≠ prediction.

• Code scan3 source files scanned25/25
• Live reliabilityremote reachable in 524ms20/20
• Tool poisoning16 tool descriptions checked15/15
• Auth qualityAPI key sent as a header8/15
• Maintenancerepository not readable: repo not found3/15
• Maintainer identityno repository or website to verify2/10

Safety score

73/100

higher than 35% of 1,299 Productivity servers

Tools

16

the typical Productivity server has 7

Tools that change things

0%

typical: 0%. Fewer write tools means less an agent can break

Uptime

100%

of our recent checks; the typical remote Productivity server answers 100%

Response time

226 ms

faster than 60% of 655 Productivity servers

Downloads a week

64

more than 46% of 427 Productivity servers with a package

Nonlinear Calendar: common questions

Is Nonlinear Calendar MCP server safe?

Mostly: it is graded B (73/100). Read the Nonlinear Calendar safety report

How do I install Nonlinear Calendar?

It runs remotely at balance-engine.vercel.app. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.

Does Nonlinear Calendar need an API key?

Yes. The registry entry asks for BALANCE_API_KEY, Authorization.

Is Nonlinear Calendar maintained?

The latest release is v0.2.1.

Is Nonlinear Calendar up?

100% of our last 28 checks got an answer. We check remote servers about four times a day.

What can I use instead of Nonlinear Calendar?

Servers from other publishers that do the same job: Agent-Native Calendar MCP server, Unreal Engine MCP server and AIquila — Nextcloud MCP Server.

How does Nonlinear Calendar compare with other Productivity MCP servers?

safety score 73/100 (higher than 35% of 1,299 Productivity servers); tools 16 (the typical Productivity server has 7); tools that change things 0% (typical: 0%. Fewer write tools means less an agent can break). Full comparison.