Best Astrology APIs in 2026: Complete Developer Comparison

If you are building an astrology app in 2026, choosing the right astrology API is no longer only about generating a natal chart.

Some astrology APIs focus on enterprise credit wallets. Some are strongest for Vedic astrology. Some are built for AI agents and hosted MCP workflows. Others are better for simple JSON responses, white-label PDF reports, open-source research, or low-cost MVPs.

This guide compares the best astrology APIs for developers:

• FreeAstroAPI
• AstrologyAPI
• AstroAPI
• RoxyAPI
• Astrology API
• Free Astrology API
• VedicAstroAPI
• VedAstro
• Prokerala Astrology API

Naming note: there are several similarly named products in this category. In this guide, AstroAPI means the Bloom/astroapi.cloud product, while Astrology API means astrology-api.io.

Last verified: May 31, 2026. Pricing, quotas, and endpoint access can change, so always check the linked provider pages before committing a production architecture.

Quick verdict

Complete astrology API comparison table

How to choose an astrology API

The best astrology API depends on the app you are building.

For an AI astrology chatbot, prioritize hosted MCP, clean JSON, stable tool naming, and rate-limit clarity. For a chart app, prioritize deterministic chart math, timezone handling, house systems, SVG/PNG output, and city search. For a Vedic product, prioritize dasha, varga, Panchang, matching, gochar, yoga detection, and language support. For an enterprise platform, prioritize credit management, PDF reports, white-label workflows, support, and contract flexibility.

The ranking factors used in this comparison are:

1. Free tier usefulness.
2. Pricing predictability.
3. AI and MCP readiness.
4. Western astrology coverage.
5. Vedic astrology coverage.
6. Visual output such as SVG, PNG, or PDF.
7. Rate-limit transparency.
8. Developer documentation quality.
9. Fit for production apps.

Free tier comparison

One of the biggest differences between astrology APIs is how they handle free usage.

Some providers give developers a transparent request allowance and a separate throughput limit. Others use credits, where one endpoint may cost more than one credit. That distinction matters because a free tier with 50 credits is not always the same as 50 real chart calculations.

Why FreeAstroAPI has one of the best free tiers

Most astrology APIs advertise credits, wallets, reports, or trial access. Those can be useful, but they make real usage harder to estimate.

With a credit model:

• A natal chart may consume a different number of credits than a PDF report.
• Synastry, transit, or batch endpoints may cost more than basic endpoints.
• A free credit balance may disappear faster than a simple request count suggests.

FreeAstroAPI is easier to budget around:

• 80 requests/day on the free tier.
• 50,000 requests/month on Entry.
• 500,000 requests/month on High.
• Hosted MCP access on every tier.
• Clear request-per-second limits.
• Hard throttling instead of surprise billing.

That makes FreeAstroAPI a strong fit for indie developers, SaaS prototypes, mobile apps, AI agent builders, and MVP launches that need real astrology calculations without a confusing wallet model.

Best astrology API for AI agents and MCP servers

AI agent workflows changed the API buying decision. In 2026, developers are not only calling astrology endpoints from a backend. They are connecting tools to:

• Claude Desktop and Claude Code.
• Cursor.
• VS Code agent workflows.
• OpenAI Agents SDK style tool calling.
• Custom MCP clients.
• Multi-step AI astrology chatbots.

For these use cases, the clearest comparison is whether MCP is supported and whether the provider hosts it for you.

What is a remote MCP?

A remote MCP server is hosted by the API provider. Instead of running Docker, exposing localhost, or maintaining a custom tool server, you connect your AI client directly to a hosted MCP URL.

For FreeAstroAPI, the pattern is:

{
  "mcpServers": {
    "freeastroapi": {
      "url": "https://api.freeastroapi.com/mcp",
      "headers": {
        "x-api-key": "YOUR_API_KEY"
      }
    }
  }
}

The AI client can then discover astrology tools and call them with your normal API key. MCP calls count against the same plan limits as direct REST requests.

Provider-by-provider notes

FreeAstroAPI

FreeAstroAPI is the best default choice if you want a developer-first astrology API with predictable pricing, broad endpoint coverage, and AI-agent support. The public docs cover Western astrology, Vedic astrology, Chinese/BaZi, city search, Moon data, visual chart rendering, and hosted MCP.

Choose FreeAstroAPI if you care about:

• Hosted MCP without self-hosting.
• A permanent free tier with request counts instead of opaque credits.
• Western, Vedic, and Chinese/BaZi coverage in one API.
• SVG/PNG chart rendering.
• Clear pricing from free to production tiers.
• AI apps that need deterministic astrology data before LLM interpretation.

AstrologyAPI

AstrologyAPI is a strong choice for teams that want a large established astrology suite with Indian astrology, Western astrology, horoscope feeds, AI, PDF reports, and enterprise-style workflows. It uses a unified credit wallet rather than simple request-per-month pricing.

Choose AstrologyAPI if you care about:

• A broad commercial ecosystem.
• PDF report products.
• Indian/Vedic depth.
• Credit-based scaling.
• MCP support for enterprise astrology agents.

The tradeoff is that credit systems require extra cost modeling. One "free credit" is not always equivalent to one production chart or one complete user action.

AstroAPI

AstroAPI is a good fit for teams that want a modular, Western-oriented API with published plan quotas and add-ons. The published pricing lists full plans starting at EUR 39.99/month, plus individual modules such as yearly horoscope reports from EUR 4.50/month. Its rate-limit docs publish 60, 120, 300, and 600 requests/min by plan.

Choose AstroAPI if you care about:

• Western chart calculations.
• Modular pricing.
• PDF and chart rendering workflows.
• EU-oriented vendor positioning.
• A traditional REST-first integration.

RoxyAPI

RoxyAPI is built for AI-native, multi-domain products. Astrology is one domain among many, alongside Vedic, tarot, numerology, dreams, I-Ching, crystals, biorhythm, human design, and other APIs. It includes remote MCP servers, starter apps, SDKs, UI components, and agent-oriented docs.

Choose RoxyAPI if you care about:

• One key for many metaphysical domains.
• Remote MCP across multiple domains.
• Starter apps and AI prompts.
• A higher starting price but broad product bundling.
• AI-native positioning.

The tradeoff is that if you only need astrology, you may be paying for a broader bundle than your app requires.

Astrology API

Astrology API at astrology-api.io is a broad calculation catalog with 50 free calls/month, paid tiers starting at $11/month, standard endpoints, premium credit costs, chart rendering, AI interpretation options, and a hosted MCP gateway.

Choose Astrology API if you care about:

• Many calculation types.
• House-system breadth.
• Astrocartography and specialized endpoints.
• A low entry paid tier.
• Hosted MCP grouped by calculation category.

The tradeoff is that some advanced features use multi-credit costs, so production cost depends on endpoint mix.

Free Astrology API

Free Astrology API is a simple, low-cost JSON API with a daily free allowance and clear paid tiers. Its pricing page lists 50 requests/day free, then Mercury, Venus, and Saturn packages with monthly request counts and request-per-second limits.

Choose Free Astrology API if you care about:

• Simple Vedic JSON output.
• Low paid pricing.
• Daily free testing.
• Straightforward server-side REST calls.

The tradeoff is that it does not appear to be designed around hosted MCP, AI-agent discovery, or rich visual chart output.

VedicAstroAPI

VedicAstroAPI is strongest when you need a large Vedic content ecosystem with language coverage, PDF add-ons, Tarot/Western options, and an AI Chat beta. Its pricing page lists Vedic, Western/Tarot, combo, PDF, and top-up products, plus a 14-day free trial.

Choose VedicAstroAPI if you care about:

• Vedic astrology content at scale.
• Multi-language output.
• PDF report add-ons.
• Tarot plus astrology bundles.
• AI Chat experimentation.

The tradeoff is that the product catalog is broad, so you should map exact endpoint needs before choosing a plan.

VedAstro

VedAstro is the strongest option for open-source astrology builders and researchers. It has an open-source MIT-licensed codebase, REST API, Python library, MCP server, and very low-cost hosted API tier.

Choose VedAstro if you care about:

• Open-source verification.
• Research and data science.
• Python-first workflows.
• Vedic calculation transparency.
• Low-cost hosted API access.
• Self-hosting or code-level auditability.

The tradeoff is that it can feel more technical than a polished SaaS API with commercial support and productized dashboard flows.

Prokerala Astrology API

Prokerala is a strong option for Vedic, Panchang, matching, and PDF report workflows. Its pricing is credit-based: the free plan lists 5,000 credits/month and a 5 requests/min rate limit, while paid plans raise credits and request-per-minute limits. Its credit table shows that different products consume different credit amounts.

Choose Prokerala if you care about:

• Vedic and Panchang coverage.
• Matrimonial compatibility.
• PDF report workflows.
• Established product packaging.
• Credit-based scaling.

The tradeoff is cost predictability. You need to model your endpoint mix because different reports and chart types consume different credits.

Report depth comparison: page count is not word count

Astrology PDF providers often advertise page counts, but public samples show that page count is not the same as report depth. A 60-page PDF may include cover pages, chart wheels, legends, planetary tables, compatibility scores, Vedic module tables, or short aspect-by-aspect blocks. Those can be useful, but they are not the same product as a dense narrative interpretation.

FreeAstroAPI reports are built differently. The report target is an 8,000-9,000 word personalized narrative, returned as structured JSON or Markdown so you can render it inside your app or turn it into your own branded PDF. In a sample extraction check, a 20-page FreeAstroAPI natal report produced roughly the same word count as AstrologyAPI's 34-page solar-return sample, but with much higher text density and fewer chart/table pages.

Approximate public sample checks:

These numbers are approximate text-extraction counts from public sample PDFs and one FreeAstroAPI generated PDF, not a universal benchmark for every report type each provider offers. The practical takeaway is that FreeAstroAPI is not trying to win on page count. It is built for narrative density, personalization, and developer control.

Best API by use case

Recommended stack for AI astrology products

For most AI astrology apps, the safest architecture is not "LLM only." It is deterministic API first, LLM second.

Use this flow:

1. Collect birth date, time, and place.
2. Resolve city, coordinates, and timezone.
3. Call a deterministic astrology API.
4. Store the raw chart JSON as the source of truth.
5. Give only the relevant structured fields to the LLM.
6. Ask the LLM to interpret, summarize, or answer from those fields.
7. Do not let the LLM invent placements, degrees, aspects, dashas, or houses.

This is where APIs with clean JSON and hosted MCP support have an advantage. They let AI agents call real calculation tools instead of hallucinating astrology math from a prompt.

FAQ

What is the best astrology API in 2026?

For most developers, FreeAstroAPI is the best overall value because it combines a usable free tier, predictable paid plans, hosted MCP, Western astrology, Vedic astrology, Chinese/BaZi endpoints, and visual chart rendering.

What is the best astrology API for AI agents?

FreeAstroAPI is the best default pick for hosted astrology MCP because it provides a remote MCP server and uses the same API key and limits as the REST API. RoxyAPI is also strong if you want many spiritual or metaphysical domains under one subscription.

What is the best Vedic astrology API?

For commercial Vedic content ecosystems, compare VedicAstroAPI, Prokerala, AstrologyAPI, and FreeAstroAPI. For open-source Vedic research and transparency, VedAstro is the strongest pick.

Which astrology API has the best free tier?

FreeAstroAPI has one of the most practical free tiers because it offers 80 requests/day with a daily reset. Free Astrology API also offers a daily request model, while credit-based providers require endpoint-by-endpoint cost modeling.

Should I use an astrology API or ask an AI model to calculate charts?

Use an astrology API for calculations. Then use an AI model to explain the returned data. This avoids hallucinated placements, timezone mistakes, house-system drift, and wrong dasha or transit logic.

Sources checked

• FreeAstroAPI pricing
• FreeAstroAPI documentation
• FreeAstroAPI reports
• AstrologyAPI pricing
• AstrologyAPI MCP server
• AstrologyAPI solar return sample
• AstroAPI pricing
• AstroAPI rate limits
• RoxyAPI pricing
• RoxyAPI MCP docs
• Astrology API pricing
• Astrology API PDF reports
• Astrology API MCP gateway
• Free Astrology API pricing
• VedicAstroAPI pricing
• VedicAstroAPI PDF samples
• VedAstro API
• VedAstro open source
• Prokerala pricing
• Prokerala credit utilization
• Prokerala PDF reports