The simplest way to frame this matchup: Prokerala is the established, feature-rich, credit-metered incumbent. VedAstro is the cheap, transparent, open-source challenger built for the AI era.

Prokerala has nearly two decades of production track record, mature PDF report generation, and broad Western coverage — but it meters every call through credits, is closed-source, and has no MCP server. VedAstro charges a flat $1/month for effectively unlimited calls, publishes all its source code, and ships a hosted MCP server you can connect to Claude, ChatGPT, or Gemini in under a minute — but it doesn't generate PDFs, isn't multilingual, and offers little Western astrology depth.

Website: api.prokerala.com
Company: Ennexa Technologies, Kerala, India
Established: 2006 (the oldest Vedic astrology API provider)
Free Tier: ~5,000 credits/month, 5 req/min
Pricing (often runs a 50% off promo):

• Ruby (popular): ~₹999/mo (~$11.90 on promo) — 100K credits, 60 req/min
• Emerald: ₹2,499/mo (~$29.70) — 350K credits, 120 req/min
• Sapphire: ₹4,999/mo (~$59.50) — 1M credits, 300 req/min
• Enterprise: custom pricing
• Top-up: 100K credits for ~₹2,500 (3-month validity)

What they offer:

• Comprehensive Vedic catalog: kundli, Mangal Dosha, Ashta/Dasha Kuta marriage compatibility, Ashtakavarga, Yogas
• Panchang, Choghadiya, Auspicious Period, multiple regional calendars (Amanta, Purnimanta, Vikram Samvat)
• Western astrology: natal chart, aspects, synastry, transit chart
• Numerology: Pythagorean and Chaldean
• PDF reports: kundli, compatibility, transits (white-label customization)
• Batch compatibility: up to 500 charts per request
• Sample clients in PHP, C#, Python, Ruby; WordPress plugin

Honest assessment:

Prokerala is the most established and trusted provider in the Vedic API market — nearly two decades of track record matters for production deployments. Its PDF report quality and customization options are strong, the Western astrology coverage is real, and promo pricing brings the entry tier down to around $12/month, which is genuinely competitive.

Where it falls short: no MCP support (a real gap for AI-assistant developers in 2026), credit-based pricing means budgeting is unpredictable (a full kundli call can cost hundreds of credits while a panchang costs a handful), it's closed-source so you can't audit the calculations, and there's no AI/NLP layer or Tarot.

Website: vedastro.org
Founded: 2014 (non-profit project)
Free Tier: 5 requests/minute, no signup, no credit card
Paid: $1/month for unlimited calls (soft caps apply)

What they offer:

• 200+ horoscope prediction endpoints
• Swiss Ephemeris engine; Raman ayanamsa default; 47 ayanamsa systems supported (broadest in market)
• Match compatibility (16 Kutas), Ashtakavarga, Dasha (multi-level), Yogas, Panchang, Muhurtha, Chaldean numerology
• Hosted MCP server at mcp.vedastro.org — works with Claude, ChatGPT, Gemini, Cursor, VS Code
• Python SDK (PyPI), PHP wrapper, Swift package
• Open source on GitHub (MIT license, 530+ stars), self-hostable, Docker image available
• Visual REST API Builder for non-developers — test endpoints and generate code in your browser

Honest assessment:

VedAstro is the cheapest paid Vedic API by a wide margin and the only fully open-source one in this comparison. The hosted MCP server is the easiest to set up of any provider — one URL, no install. Calculations are transparent and verifiable because the source code is public, and the flat $1/month price means you never have to model credit burn.

Where it falls short: no PDF report generation, no Tarot, no built-in AI chat layer (MCP enables AI integration but there's no native NLP endpoint), English-only API responses, no official JavaScript/TypeScript SDK, and no Western astrology depth beyond ayanamsa selection. It's a non-profit project focused 100% on benefiting the Vedic astrology community rather than on building a polished commercial product.

This is the single biggest practical difference between the two. VedAstro charges a flat $1/month regardless of which endpoints you hit, so a kundli call and a panchang call cost exactly the same: nothing extra. Budgeting is trivial.

Prokerala uses a credit wallet. Each plan grants a monthly credit balance, and every endpoint draws a different amount. A daily horoscope might cost a handful of credits; a full kundli or a white-label PDF report can cost hundreds. This makes Prokerala powerful for premium per-report products — you can price a PDF to your customer and cover its credit cost — but harder to forecast for high-volume, low-value calls.

Model Context Protocol (MCP) lets AI assistants like Claude, ChatGPT, and Gemini call an API directly with grounded, real-time data — no copy-paste between tools. In 2026 this is becoming a baseline expectation for any developer building AI features.

This is a clear win for VedAstro. Its hosted MCP server at mcp.vedastro.org is the easiest to set up of any Vedic provider — one URL, no install. Prokerala, as of our June 2026 verification pass, has no confirmed MCP support. If your roadmap involves an AI assistant that answers astrology questions against real chart data, VedAstro removes a meaningful chunk of integration work that Prokerala would leave to you.

Both providers ultimately rely on the Swiss Ephemeris as their planetary calculation engine, so raw planetary positions are effectively identical. The differences that matter are:

• Ayanamsa flexibility: VedAstro supports 47 ayanamsa systems (broadest in the market); Prokerala defaults to Lahiri.
• Auditability: VedAstro is fully open-source, so calculations can be verified line-by-line. Prokerala's engine is closed.
• Interpretation depth: Prokerala ships more mature, polished report text and Western interpretations; VedAstro's strength is raw, transparent Vedic computation.

If auditability is your top concern, VedAstro's open source gives the strongest verification trail. If you want ready-to-ship interpretation and report text out of the box, Prokerala is more complete.

There is no universal winner — each is honestly the better choice for a specific kind of project:

Honesty matters more than a marketing pitch. Here are the cases where Prokerala is genuinely the better fit:

• You need PDF report generation. Prokerala ships white-label kundli, compatibility, and transit PDFs — VedAstro doesn't generate PDFs at all.
• You need deep Western astrology (natal, aspects, synastry, transits). Prokerala covers these; VedAstro is Vedic-first.
• You're betting on a long track record. Prokerala has run since 2006 — that maturity is reassuring for some production teams.
• You sell premium per-report products. The credit model lets you map costs cleanly to high-value deliverables.
• You want ready-made interpretation text rather than raw computed data to interpret yourself.

Summary

Both Prokerala and VedAstro produce accurate Vedic calculations because both sit on the same Swiss Ephemeris engine. The real differences are pricing structure, openness, MCP/AI readiness, and feature breadth.

If price-per-call and transparency are your biggest constraints and you mainly need Vedic features, VedAstro at $1/month flat is unbeatable, and being open-source means you can audit, contribute, or self-host — plus its hosted MCP server makes AI integration trivial. If you need PDF reports, deeper Western coverage, or a longer track record, Prokerala is genuinely the better choice, and we'd rather you pick the right tool than the cheapest one.

Pick the one that fits your specific use case, not the one with the loudest marketing.