---
title: "Free Vedic Astrology Tools, API & Datasets | Vedastro"
description: "Free Vedic astrology calculators, an open API, downloadable datasets, and research resources for developers, journalists, and Jyotish students."
image: "https://vedastro.guru/og-cover.png"
---

## Open API & developer tools

Build Vedic astrology features into your own app or research pipeline. The API returns birth charts, compatibility scores, Panchang data, and more in JSON.

For developers

## [Vedastro API documentation](/docs.html)

Interactive endpoint reference for Kundli, compatibility, palmistry, and health checks. Includes curl examples and OpenAPI schema.

[Open resource →](/docs.html)

Machine-readable

## [OpenAPI schema](/openapi.json)

Download the openapi.json schema to generate clients, tests, and documentation for the Vedastro API.

[Open resource →](/openapi.json)

AI agent discovery

## [API catalog for agents](/.well-known/api-catalog)

RFC 9727 linkset and AI-catalog.json for agentic discovery of Vedastro endpoints and capabilities.

[Open resource →](/.well-known/api-catalog)

## Downloadable datasets

Research-friendly JSON datasets for calendars, transits, and historical patterns. These samples are free to use with attribution. Full data is available through the API.

Sample data

## [Panchang sample dataset](/datasets/panchang-sample.json)

A sample of daily Panchang entries including tithi, nakshatra, yoga, and karana. Useful for calendar research and app prototyping.

[Open resource →](/datasets/panchang-sample.json)

Sample data

## [2027 eclipse and transit dataset](/datasets/eclipse-transits-2027.json)

Solar and lunar eclipse dates for 2027 with associated planetary transits. A starting point for astronomy and astrology calendar projects.

[Open resource →](/datasets/eclipse-transits-2027.json)

Sample data

## [Planetary conjunctions sample](/datasets/planetary-conjunctions-sample.json)

Notable conjunctions between major planets across a 50-year span. Useful for studying recurring planetary patterns.

[Open resource →](/datasets/planetary-conjunctions-sample.json)

Research idea

## [Research data request](mailto:support@vedastro.guru?subject=Research%20data%20request)

Need a custom date range, location, or calculation? Contact the project to discuss bulk data access for academic or media research.

[Open resource →](mailto:support@vedastro.guru?subject=Research%20data%20request)

## Free calculators

Public, no-account calculators that are easy to link to and share. Each produces a private, computed result.

Calculator

## [Birth chart (Kundli) calculator](/kundli)

Generate a Vedic birth chart with planetary positions, houses, and basic interpretation.

[Use this resource →](/kundli)

Calculator

## [Kundli matching calculator](/compatibility)

Compare two charts with Guna Milan and practical relationship reflection prompts.

[Use this resource →](/compatibility)

Calculator

## [Panchang calculator](/panchang)

Get today's tithi, nakshatra, yoga, karana, and auspicious timings for any location.

[Use this resource →](/panchang)

Calculator

## [Muhurat timing calculator](/muhurat)

Find supportive windows for events, beginnings, and decisions.

[Use this resource →](/muhurat)

## Research & media

Vedastro’s computation engine can power original research on historical planetary patterns, marriage muhurta trends, festival calendars, and eclipse cycles. If you are writing an article, building a directory, or running an academic project, these pages are designed to be cited and linked.

- Cite specific tools or dataset URLs in your article or repository.
- Link to the API documentation when describing Vedic astrology integrations.
- Request custom analyses or bulk historical data by contacting support.

[Request research data →](mailto:support@vedastro.guru?subject=Research%20data%20request)

## Frequently asked questions

Is the Vedastro API free to use?Yes. The public API endpoints for Kundli, compatibility, Panchang, and health checks are free to call within documented rate limits. No account is required for read-only calculations.Can I download the datasets for research?Sample datasets are provided in JSON format and can be used for research, journalism, and application prototyping. Full bulk data is available through the API or by contacting the project maintainers.How do I cite Vedastro in an article or paper?Link to the relevant tool or dataset page on https://vedastro.guru/ and include the access date. For academic use, cite the dataset URL and the API documentation page.

## How to cite or link

You are welcome to link to any public Vedastro page. Suggested anchor text: “Vedastro birth chart calculator,” “Vedastro API,” or “Vedastro Panchang dataset.” For academic citation, use the page URL and access date.

`Vedastro. (n.d.). Free Vedic Astrology Tools, API & Datasets. https://vedastro.guru/resources. Retrieved 6 September 2026.`

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