Credits

How credits are counted

One balance covers everything: the API, ChatGPT, Claude and embedded widgets. Each request costs a few credits depending on the work it does. If a request fails, its credits are refunded.

Data, or a drawn chart

A chart returned as data is the cheapest call. When ChatGPT or Claude draws the chart for you, the picture is rendered too, and that adds 2 credits. So 150 credits buy 150 birth charts as data, or about 50 drawn ones.

Credit cost of common requests
RequestCredits
Birth chart as data (API, JSON)1
Birth chart drawn in ChatGPT or Claude3
…from a place name instead of coordinates4
Human Design chart as data2
Human Design bodygraph drawn4
Compatibility (synastry)3
Solar return5

Every kind of request

Standard Math
Natal charts, lunar phases, dignities, timezone, LLM JSON
1
Human Design
HD charts, transits, solar returns (2 per chart) · composite & transit overlays 3 · penta 2 per member (6–10) · extended placements priced by what you ask for: bodies 3 · angles 1 · lots 2 · fixed stars 3 per group (longitude, color, tone and base are Pro+)
2
Comparative Math
Synastry, composite, overlay — free tier, credits only
3
Visual Rendering
SVG chart wheels, PNG exports (Explorer+)
2
Predictive Math
Returns, progressions, time-lords — free tier, credits only. Transit search & HD transit timeline are priced by span before compute: ≤1 yr 5 · ≤3 yr 10 · ≤5 yr 15 · ≤10 yr 25 · ≤20 yr 40 · ≤40 yr 70 (plan limits: Explorer 1 yr, Pro 5 yr, Startup 10 yr, Scale 40 yr). Failed calls are refunded.
5
Transit Chart
Transit chart snapshot (full chart at a single moment)
1
Astrocartography
Power lines, CCG, GeoJSON (Pro+), advanced ACG (Scale+)
10
ACG Hits
Location-specific planetary strength analysis
10
Calendar
Next 30 days of moon phases or lunar standstill 2 · a year of cross-quarter dates 5
2
Electional Search
Priced by span (Pro+): window search ≤30 d 5 · ≤60 d 8 · ≤120 d 12; angle crossings ≤1 mo 5 · ≤3 mo 8 · ≤6 mo 10 · ≤1 yr 12; aspect search 5. Moment analysis and station tracker are free-tier.
5

Free credits

150 when you sign up, once. They don't reset.

Top-ups

$5 for 150, $10 for 350, $20 for 900. No subscription, and they never expire.

Or turn on auto top-up: when your balance drops below a mark you choose, a pack is added automatically and charged to your saved card, never more than a monthly limit you set. Auto top-up charges are non-refundable (Terms §5.1a).

Plans

A monthly allowance, used first. If it runs out, any top-up credits you hold cover the rest, and subscribers buy top-ups at half price on their wallet page ($2.50 for 150, $5 for 350, $10 for 900).