com.tarotari.www/tarotari
https://www.tarotari.com/api/mcp ↗
Description
Rider-Waite tarot deck and computed astronomy: charts, positions, exact aspect moments
What our measurements say
com.tarotari.www/tarotari is a remote MCP server published at www.tarotari.com. It has been probed 11 times since 9/12/2026. It answered in 11 of them (100.0%), a near-uninterrupted record. Median response time is 1,058 ms, a delay an agent will notice. It offers a narrow, focused set of 8 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Tool names are descriptive and indicate purpose clearly.
- Detailed descriptions explain use cases and computational methods.
Weaknesses
- Some parameters (e.g., 'group' in tarot_deck) lack examples of valid values.
- No explicit error handling or constraint documentation for inputs.
tarot_deck— Parameter 'group' does not specify valid options (e.g., 'major', 'wands')planet_positions— No mention of handling invalid date/time formatsnatal_chart— Missing clarification on valid 'house_system' values
Verdict
Event narrative
Risk: low
Advice
Schema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test passed · last run:
- Cold-start: cold 166ms → warm 170ms (penalty 0ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
tarot_cardThe meaning of a single Rider-Waite card: upright and reversed, arcanum, suit, links to the image and the page. Looks up by slug (major-00, cups-07) or by Russian name.
cardstringrequired
tarot_deckAll 78 cards of the Rider-Waite deck with upright and reversed meanings. Can be limited to a group: major, wands, cups, swords, pentacles.
groupstring
tarot_drawDraws cards from the deck without repeats, in upright and reversed positions. With a seed the output is deterministic: the same seed gives the same spread.
countnumberallow_reversedbooleanseednumber
tarot_birth_cardThe personal major arcanum from a birth date: the digits of the date summed and reduced to 1-22. The classic Tarot Birth Card calculation.
datestringrequired
planet_positionsEcliptic longitudes of ten planets for a given moment: sign, degree within the sign, retrograde status. Computed from VSOP87 ephemerides rather than read from tables.
datestringrequiredtimestringtz_offset_minutesnumber
moon_stateMoon phase, illumination, lunar day, sign and degree for a given moment. Illumination and the lunar day are counted from the real Sun-Moon conjunction, not from the mean synodic formula, which is off by hours and, near midnight, by a whole lunar day.
datestringrequiredtimestringtz_offset_minutesnumber
aspect_exact_timeFinds the moments when two planets form an exact angle: conjunction, sextile, square, trine or opposition. Steps through positions and refines by bisection, accurate to the minute. The same method yields new moons, full moons and sign ingresses, for which mean formulas are unfit.
planet_astringrequiredplanet_bstringrequiredaspectstringrequiredfromstringrequiredtostringrequiredtz_offset_minutesnumber
natal_chartA full birth chart for a date, time and place: planetary positions, house cusps, aspects with orbs, the balance of elements and modalities, and major configurations.
datestringrequiredtimestringrequiredlatnumberrequiredlonnumberrequiredtz_offset_minutesnumberhouse_systemstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
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