· 15 min read
Mayan Astrology Sign: How Tzolkin Day Signs Are Counted
Mayan astrology sign math: count days from a fixed epoch, take mod 13 and mod 20, and the day sign falls out. Plus the Long Count and the GMT constant.
V
Valentina Alcántara
Tarot Reader & Crystal Healing Practitioner
Latin America19 articles published
Valentina Alcantara has practiced tarot reading and crystal healing for 15 years across Mexico, Argentina, and Spain, training in the Mexican spiritual tradition. She teaches tarot online to a growing community of readers across Latin America. Her interpretations draw on Rider-Waite symbolism, Mesoamerican cosmology, and the healing properties of crystals native to the Americas.
15 years of practiceLatin America tarot educatorRider-Waite symbolism
Tarot readingCrystal healingMajor ArcanaTarot spreadsDream interpretationCrystal propertiesMesoamerican astrologyMayan day signsTzolkin calendar
Articles by Valentina Alcántara
· 13 min read
Best Tarot APIs for Developers 2026: Features and Pricing
Compare the best tarot APIs for developers: 78-card decks, spreads, seeded draws, card images, MCP, and flat pricing reviewed by RoxyAPI.
· 12 min read
Editorial Grade Spiritual API Interpretations, Not Guesses
Editorial grade spiritual interpretations from practising professionals, served the same every call or grounded in your AI via Remote MCP, by RoxyAPI.
· 9 min read
Biorhythm Compatibility Scoring for Dating and Relationship Apps
Biorhythm compatibility gives dating apps daily-changing match scores. Learn how the API works for relationship platforms.
· 10 min read
Build a Tarot Reading Chatbot with Voiceflow and an API
Build an interactive tarot chatbot using Voiceflow and a tarot reading API. Draw cards, interpret spreads, and deliver yes or no readings.
· 9 min read
Crystal Healing and Angel Numbers: The Untapped API Domains for Spiritual Apps
Crystal API and angel numbers API for developers: 80+ crystals and 40+ angel number sequences with healing properties and spiritual data via REST.
· 15 min read
Panchang: The Complete Guide to the Hindu Calendar System (Tithi, Nakshatra, Yoga, Karana, Vara)
Understand the five elements of Panchang used in Vedic astrology for muhurat selection, festival timing, and daily auspiciousness. Complete guide to Tithi, Nakshatra, Yoga, Karana, and Vara.
· 11 min read
Dreams About Your Ex: What They Really Mean and Why They Keep Happening
Why do you keep dreaming about your ex? Learn the psychology behind ex dreams, common scenarios, what they reveal about you, and when they stop.
· 5 min read
The Tower Tarot Card: Meaning, Symbols, and What It Really Signals
The Tower is one of the most misunderstood cards in the Major Arcana. Learn what it actually means upright and reversed, how to read it in a spread, and why it is not a card to fear.
· 10 min read
Astrology Based Dating App: How to Build Synastry Matching
Astrology based dating app features: synastry scoring, birth chart matching and zodiac compatibility, and what each needs from an astrology API.
· 18 min read
Building a Tarot Journaling App with React Native + Tarot API
Complete tutorial for building a tarot journal app from scratch - daily readings, history tracking, notes, card search, and share features. Full React Native code with Expo and RoxyAPI integration.
· 15 min read
Adding Yes/No Tarot Decision Features to Life Coaching Apps
Quick-win API integration for question-based divination. Add instant yes/no tarot guidance to coaching apps, productivity tools, and decision-making platforms with complete implementation guide.