Skip to content

Astro Agents - deterministic Western + Vedic astrology

by aidatatools-dev · remote · no sign-in to list tools · v1.0.3 · published by GitHub user aidatatools-dev

Natal charts, transits, kundli, dashas, panchang, Gun Milan. JPL DE440, no LLM, hashed.

Changes · 14
CompareRegistry entry

16 tools: 14 change things and 2 only read.

Scanned Oct 21, 2026

No check matched anything in the tool definitions. No finding is not a safety guarantee. How the checks work.

claude mcp add --transport http astro-agents https://astro-agent.dev/mcp

Tools

Open a tool for its reasons and full description. Descriptions are the publisher's own words, shown as they are.

16 tools

Changes things 14Claude Code: ask
  • aspectsWestern astrology aspects: find the aspects between planets at a moment, or between longitudes you supply, with orb, exactness and applying or separating.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Western astrology aspects: find the aspects between planets at a moment, or between longitudes you supply, with orb, exactness and applying or separating. Either give a moment (datetime, optional place) and get the aspects among all planets, or give 'longitudes' {name: degrees} and get the pure geometry. Orbs are explicit and overridable. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.02 per call via REST POST https://astro-agent.dev/v1/western/aspects (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Aspects
  • doshasVedic astrology doshas: check Manglik (Kuja), Kaal Sarp and Sade Sati / Dhaiya, each with the rule applied and the relevant dates.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology doshas: check Manglik (Kuja), Kaal Sarp and Sade Sati / Dhaiya, each with the rule applied and the relevant dates. Manglik from lagna, Moon and Venus with severity and commonly cited cancellations; Kaal Sarp with type and direction (partial cases flagged); Sade Sati cycles and Dhaiya phases with start/end dates over 100 years, plus the status on a given date. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.15 per call via REST POST https://astro-agent.dev/v1/vedic/doshas (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Doshas
  • gun_milanVedic astrology kundli matching (horoscope matching, marriage compatibility): 36-point Ashtakoota Gun Milan with all 8 kootas and reasons, plus dosha and Manglik checks.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology kundli matching (horoscope matching, marriage compatibility): 36-point Ashtakoota Gun Milan with all 8 kootas and reasons, plus dosha and Manglik checks. Varna, Vashya, Tara, Yoni, Graha Maitri, Gana, Bhakoot and Nadi scored from both Moons, each with the attributes and rule behind the score, Nadi/Bhakoot dosha flags with commonly cited cancellations, and both partners' Manglik status. Boy = person_a, girl = person_b by convention. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.25 per call via REST POST https://astro-agent.dev/v1/vedic/gun-milan (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Gun Milan (Ashtakoota matching)
  • kundliVedic astrology birth chart (kundli, Jyotish horoscope, D1 and D9): lagna and the nine grahas with rashi, nakshatra, pada, house, dignity and combustion.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology birth chart (kundli, Jyotish horoscope, D1 and D9): lagna and the nine grahas with rashi, nakshatra, pada, house, dignity and combustion. The Jyotish birth chart: ayanamsa (Lahiri default; Raman, KP, Yukteshwar, Fagan-Bradley, True Chitrapaksha), lagna, grahas with rashi, nakshatra/pada/lord, bhava, dignity (exalted, debilitated, moolatrikona, own sign), retrograde and combustion, house table with lords and occupants, and the Navamsa (D9). Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.15 per call via REST POST https://astro-agent.dev/v1/vedic/kundli (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Kundli (Vedic birth chart)
  • kundli_fullVedic astrology full kundli: all 16 Shodashavarga divisional charts, D1 to D60 (navamsa, dasamsa...), by Parashara's rules.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology full kundli: all 16 Shodashavarga divisional charts, D1 to D60 (navamsa, dasamsa...), by Parashara's rules. Everything in /vedic/kundli plus D1, D2, D3, D4, D7, D9, D10, D12, D16, D20, D24, D27, D30, D40, D45 and D60, each with its lagna, placements and house table. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.32 per call via REST POST https://astro-agent.dev/v1/vedic/kundli-full (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Kundli with all 16 vargas
  • nakshatrasVedic astrology nakshatras: the sidereal nakshatra, pada and lord of every graha, plus the janma nakshatra with gana, yoni, nadi and varna.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology nakshatras: the sidereal nakshatra, pada and lord of every graha, plus the janma nakshatra with gana, yoni, nadi and varna. The 27 lunar mansions for each of the 9 grahas at a moment (Lahiri by default, 6 ayanamsas), with the birth star's attributes used in matching. Or pass 'longitude_sidereal' for a direct lookup. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.02 per call via REST POST https://astro-agent.dev/v1/vedic/nakshatra (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Nakshatras
  • natal_chartWestern astrology natal chart (birth chart, horoscope): planets in zodiac signs and houses, sun sign, moon sign and rising sign (ascendant), MC, aspects and a summary.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Western astrology natal chart (birth chart, horoscope): planets in zodiac signs and houses, sun sign, moon sign and rising sign (ascendant), MC, aspects and a summary. Everything a natal reading needs, computed exactly: positions, house cusps (Placidus by default; Koch, Whole Sign, Equal, Porphyry, Regiomontanus, Campanus, Topocentric, Alcabitius, Morinus, Meridian), ascendant/MC/DSC/IC, aspects with orbs and applying/separating state, element and modality balance, chart ruler, sect and Part of Fortune. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.06 per call via REST POST https://astro-agent.dev/v1/western/natal (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Western natal chart
  • panchangVedic astrology panchang (Hindu calendar) for a day and place: tithi, vara, nakshatra, yoga and karana with their exact end times, plus sunrise and sunset.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology panchang (Hindu calendar) for a day and place: tithi, vara, nakshatra, yoga and karana with their exact end times, plus sunrise and sunset. The Hindu almanac for any moment and place: the five limbs with their end times (to the minute), paksha, Moon and Sun rashi, sunrise/sunset, and the vara by the sunrise-to-sunrise rule. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.02 per call via REST POST https://astro-agent.dev/v1/vedic/panchang (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Panchang
  • planet_positionsWestern astrology planet positions: the zodiac sign, longitude, latitude, speed and retrograde flag of the Sun, Moon, planets, lunar nodes and Lilith at any moment.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Western astrology planet positions: the zodiac sign, longitude, latitude, speed and retrograde flag of the Sun, Moon, planets, lunar nodes and Lilith at any moment. Geocentric apparent positions from NASA/JPL DE440 for any moment 1800-2200, with sign, degree, element, modality, daily speed and retrograde status. Location is optional (only used to interpret a local time). Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.01 per call via REST POST https://astro-agent.dev/v1/western/positions (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Planetary positions
  • synastryWestern astrology synastry (relationship compatibility): compare two birth charts with cross-aspects, house overlays both ways and composite midpoints.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Western astrology synastry (relationship compatibility): compare two birth charts with cross-aspects, house overlays both ways and composite midpoints. Two natal charts compared: every cross-aspect with orbs, where each person's planets fall in the other's houses, harmonious/challenging counts, and composite (midpoint) positions and angles. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.12 per call via REST POST https://astro-agent.dev/v1/western/synastry (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Synastry
  • transitsWestern astrology transits: the transits to a natal chart at a moment, and the exact dates transiting aspects perfect over a window of up to a year.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Western astrology transits: the transits to a natal chart at a moment, and the exact dates transiting aspects perfect over a window of up to a year. 'transit': aspects from the sky at a moment to every natal point, with the natal house each transiting planet occupies. 'window': the exact UTC minute every transiting planet perfects each aspect to each natal point over up to 366 days (62 with the Moon), retrograde passes included. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.08 per call via REST POST https://astro-agent.dev/v1/western/transits (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Transits
  • vedic_reportVedic astrology report in one call: kundli, Vimshottari dashas, doshas and the birth panchang.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology report in one call: kundli, Vimshottari dashas, doshas and the birth panchang. The full Jyotish dossier for one person in a single deterministic call: everything in /vedic/kundli, /vedic/dashas (2 levels, running periods with on_date), /vedic/doshas and the panchang at birth. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.50 per call via REST POST https://astro-agent.dev/v1/vedic/report (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Complete Vedic report
  • verify_result_hashVerify that an astrology result was not altered: recompute the SHA-256 of a 'result' object returned by any tool and compare it with the result_sha256 you hold.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Verify that an astrology result was not altered: recompute the SHA-256 of a 'result' object returned by any tool and compare it with the result_sha256 you hold. Free.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Verify a result hash (free)
  • vimshottari_dashaVedic astrology dasha periods: the Vimshottari maha, antar and pratyantar dashas with exact dates, the balance at birth and the periods running now.No findings

    Why it is in this group

    • Nothing in its name or description says what it does, so it is counted as a write.
    • The server marks it read-only (readOnlyHint: true), but an annotation never lowers a class.
    Description, as the server wrote it
    Vedic astrology dasha periods: the Vimshottari maha, antar and pratyantar dashas with exact dates, the balance at birth and the periods running now. The 120-year Vimshottari sequence from the Moon's exact nakshatra position: balance at birth, all 9 mahadashas with sub-periods down to 4 levels, and (with on_date) the periods running on a date. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.10 per call via REST POST https://astro-agent.dev/v1/vedic/dashas (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Vimshottari dashas
Only reads 2Claude Code: allow
  • astro_catalogList every astrology tool with its price, input schema and an example request.No findings

    Why it is in this group

    • The description's first verb is "list": a word for reading.
    Description, as the server wrote it
    List every astrology tool with its price, input schema and an example request. Free; call it first to pick the right tool.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Catalog (free)
  • resolve_birth_timeAstrology birth time to UTC conversion: convert a local birth date, time and place into exact Universal Time, with the historical time zone and UTC offset, Delta T, Local Mean Time…No findings

    Why it is in this group

    • The name "resolve_birth_time" says "resolve": a word for reading.
    Description, as the server wrote it
    Astrology birth time to UTC conversion: convert a local birth date, time and place into exact Universal Time, with the historical time zone and UTC offset, Delta T, Local Mean Time and true solar time. The step LLMs most often get wrong. Resolves the IANA time zone from coordinates, applies the offset in force on that date (historical DST, Local Mean Time before standard time), flags ambiguous or non-existent local times instead of guessing, and returns Julian Days (UT/TT), Delta T, Local Mean Time, true (apparent) solar time and the equation of time. Deterministic (JPL DE440, no LLM); every result carries meta.result_sha256. Price $0.01 per call via REST POST https://astro-agent.dev/v1/time/resolve (x402 or MPP); your first 3 calls are free here.

    Annotations the server declares

    • destructiveHint: false
    • idempotentHint: true
    • openWorldHint: false
    • readOnlyHint: true
    • title: Birth time resolver

This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.

Install

Pinned to version 1.0.3. Values in angle brackets are yours to fill in.

claude mcp add --transport http astro-agents https://astro-agent.dev/mcp

Run in a terminal.

Claude Code permissions

Allow the reads, ask before a change, deny the deletes. Paste into .claude/settings.json.

.claude/settings.json
{
  "permissions": {
    "allow": [
      "mcp__astro-agents__resolve_birth_time",
      "mcp__astro-agents__astro_catalog"
    ],
    "ask": [
      "mcp__astro-agents__planet_positions",
      "mcp__astro-agents__aspects",
      "mcp__astro-agents__natal_chart",
      "mcp__astro-agents__transits",
      "mcp__astro-agents__synastry",
      "mcp__astro-agents__nakshatras",
      "mcp__astro-agents__panchang",
      "mcp__astro-agents__kundli",
      "mcp__astro-agents__kundli_full",
      "mcp__astro-agents__vimshottari_dasha",
      "mcp__astro-agents__doshas",
      "mcp__astro-agents__gun_milan",
      "mcp__astro-agents__vedic_report",
      "mcp__astro-agents__verify_result_hash"
    ],
    "deny": []
  }
}

Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. It assumes the server is installed as astro-agents. Review it before you use it.