Free Astrology API: Which One Has the Best Free Tier in 2026?

“Free astrology API” usually means one of three things: a generous monthly credit grant, a hard daily request cap, or a time-limited trial that turns into a paywall. They are not the same, and the difference decides whether you can ship a side project without a card. Here’s how the main options actually compare.

AstroWay’s free tier is 10,000 credits per month, no credit card. A full natal chart is 20 credits, so that’s roughly 500 charts a month before you pay anything — the most generous standing free tier among the commercial astrology APIs as of 2026.

Competitor figures are estimates from public pricing pages (June 2026) and change; check each provider before you commit.

A daily request cap (FreeAstrologyAPI’s ~50/day) is predictable but small, and a single complex call counts the same as a trivial one. Credit grants (AstroWay, Prokerala) price by what the endpoint computes — a planet lookup is cheap, a rectification is not — so a credit tier stretches further for a mix of light calls. The catch with some credit systems (Prokerala’s is the usual example) is that a few heavy endpoints can burn a month’s budget fast, which makes planning hard. AstroWay’s per-endpoint costs are flatter and published on the pricing page.

At 20 credits per natal chart, 10,000 credits is about 500 charts a month. In practice that covers:

• a personal project or MVP serving real users before any revenue,
• a daily-horoscope widget caching twelve sign-based calls per day (a few credits each),
• local development and CI without touching a paid key.

When you outgrow it, the first paid tier starts at $5/mo.

# Python
pip install astroway

// TypeScript
npm install @astroway/sdk

Generate a key on the dashboard — no card — and the free credits are active immediately.

• Pricing — full credit costs and paid tiers
• Best astrology APIs in 2026 — the broader comparison
• Natal chart API in Python — build something with the free tier