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Astrology and numerology for app builders

Articles on Vedic astrology and numerology: birth charts, dashas (planetary periods), kundli matching, the mulank (birth day number), name numbers and more. Also guides for anyone building an astrology or numerology app. Each post shows real API answers you can check.

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Free tools

Try what you read about

Ten free tools run on our APIs. Enter a birth date, time and place, or a name and a birth date, and see the answer in your browser.

All free tools

Free kundli
Your Vedic birth chart: the rising sign and all nine planets, with sign, house and nakshatra.
Make my kundli
Kundli matching
The 36-point guna milan score, the manglik check and a plain verdict for two people.
Match two charts
Today's panchang
Tithi (lunar day), nakshatra, sunrise, rahu kaal and the choghadiya (good and bad parts of the day) for your own city.
See today's panchang
Manglik dosha check
Whether Mars makes a chart manglik, counted three ways, with any exceptions.
Check for manglik dosha
Sade sati check
Whether sade sati, Saturn's 7.5-year pass around your Moon sign, is running for you, which phase, and the dates.
Check my sade sati
Nakshatra finder
Your birth star: the Moon's nakshatra, its quarter (pada), its ruler and your Moon sign.
Find my nakshatra
Numerology calculator
Your mulank, bhagyank and name number from a name and a birth date.
Find my numbers
Life path number calculator
Your life path number with master numbers kept, plus your expression, soul urge and personality numbers.
Find my life path
Name numerology calculator
A name's Chaldean and Pythagorean numbers, with other spellings compared against your birth date.
Check my name
Lo Shu grid calculator
The Lo Shu grid from a birth date, with missing and repeated numbers and full and empty lines.
Draw my Lo Shu grid

API for Astrology

Build it into your own app

Get kundlis, dashas, matching and the panchang, or mulank and name numbers, as JSON in your own app. Create a free test key, or try a request in the API reference first.

Get a free API key Open the API reference

Your first answer

John Doe, New York

POST /v1/planets200 OK

RisingVirgoHast
SunCancerAshlesha
MoonTaurusMrigashira
MarsAriesKrittika

Real API output. A free test key gets the same answer.

01
Test key: 1,000 test calls a month to build with
02
Free plan: 2,000 live calls a month, no card needed
03
Open rules: every rule is published, so you can check any answer

Astrology and numerology for app builders

Jaimini Astrology: Atmakaraka and the Chara Karakas

Numerology Chart: Every Number a Person Has, on One Screen

Transit Alerts: Tell Each User When a Planet Changes Sign

Lucky Numbers, Colors and Days: Where They Come From

Astrology GPT: Give Your AI Chatbot Real Chart Data

Numerology Chatbots: Give an AI Assistant Real Numbers

Prashna Kundli API: Add Horary Questions to Your App

Raj Yoga and Gajakesari Yoga: How Apps Find Them

Baby Name Numerology: Names by Number and Birth Star

How Muhurat Is Calculated: How Apps Pick a Good Time

Date of Birth Numerology: Every Number From the Date Alone

Ashtakavarga and Shadbala: How Planet Strength Is Scored

Vehicle Number Numerology: What Counts on a Plate

Time Zone Errors in Birth Charts: The Daylight Saving Bug

Missing Numbers and Lines in the Lo Shu Grid

Hindu Calendar 2027: Festival Dates for App Builders

Numerology Matching for Matrimony Sites, Beside the Kundli

Unknown Birth Time: How Astrology Apps Should Handle It

Destiny Number or Bhagyank? One Word, Two Formulas

Kaal Sarp Dosh: How the Check Works and Where Apps Differ

House Number Numerology for Real-Estate and Rental Apps

Kundli and Panchang for Puja Stores and Temple Websites

Expression, Soul Urge and Personality Numbers From a Name

Moon Sign, Sun Sign and Rising Sign: How Each Is Found

Name Correction Numerology: How Spelling Suggestions Work

10 Questions to Ask an Astrology API Provider

Personal Year Number 2027: How It Is Worked Out

Yogini Dasha vs Vimshottari Dasha: When Apps Use Each

Numerology Compatibility: Why a Match Is Read Both Ways

Free vs Paid Astrology API: What You Really Get

Business Name Numerology: What a Name Number API Returns

How Nakshatra Is Calculated: From Moon Degree to Pada

Master Numbers 11, 22 and 33: When an App Should Keep Them

How to Add Kundli Matching to a Matrimony Site

Mobile Number Numerology: How to Add Up a Phone Number

Vedic vs Western Astrology: What Changes in the Code

Indian vs Western Numerology: What Your App Should Show

Why Rahu Kaal Changes by City: A Panchang API Guide

Why Two Numerology Calculators Give Different Numbers

How Vimshottari Dasha Is Calculated, Step by Step

Life Path Number: The Math, and Why Calculators Disagree

How Sade Sati Is Calculated, and Why Apps Disagree on Dates

Numerology App Development: What to Build and What to Buy

Lahiri, KP or Raman Ayanamsa: Which Should Your App Use?

How the Lo Shu Grid Is Built From a Birth Date

How to Add a Daily Horoscope to Your Website or App

Chaldean vs Pythagorean Numerology: What Changes in Code

Navamsa (D9) and D10 Charts: How They Are Calculated

Numerology API for Developers: First Call, Step by Step

Mulank, Bhagyank and Name Number: How Apps Work Them Out

Hiring an Astrology App Development Company: Build or Buy

Why Hindu Festival Dates Change by City: Karva Chauth 2026

Kundli Software vs a Kundli API: Which One to Buy

Mercury Retrograde 2026 and 2027: Exact Dates and Signs

AI Astrologer: Build One That Gets the Chart Right

Kundali Matching Explained: The 36 Points of Guna Milan

Manglik Dosha Explained: 3 Counts and 4 Exceptions

Jupiter Transit 2026: Saturn and Rahu Ketu Dates to 2027

Astrology API You Can Audit: Why Rule IDs Matter

Astrology Report API: Readings That Match the Chart

Try what you read about

Build it into your own app