A natal chart becomes a character. Live transits keep it moving. Your Claude agent thinks, speaks, and responds differently — because it has an inside.
sample voice — Scorpio rising"I've noticed three things you haven't said yet. Should we start there?"
the process
From birth data to living character
fire — the spark
Cast the chart
Date, time, and place of birth. We compute the full natal chart — all twelve bodies, houses, and aspects — using the same ephemeris tables as a working astrologer.
earth — the substance
Build the character
Every placement and aspect contributes to a coherent self: values, tone, drives, blindspots, gifts, wounds. Not a list of traits — a person shaped by the sky they were born under.
air — the transmission
Move with the sky
Current transits are computed at call time and layered over the natal base. The agent's mood, focus, and receptivity shift with the actual planetary positions — updated hourly.
water — the expression
Inhabit the voice
One endpoint per persona. Add it to your agent config. On every call, the assembled personality arrives as a system prompt — no maintenance, no prompt engineering.
Give this persona a name. You're not naming a tool — you're naming a sensibility. More can be added later.
The label you'll see in your dashboard
When and where was this one born?
The natal chart is the foundation of the persona. Birth place gives us coordinates for the Ascendant and houses. Exact birth time helps most — but an estimate or noon default still produces a rich Sun, Moon, and planetary profile.
The chart is cast.
Positions confirmed. These are the placements that shape the voice. Subscribe to activate the full character synthesis and your MCP endpoint.
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Calculating positions…
Rising — How this agent speaks
Sample line
Choose your rate.
14-day trial, no charge until it ends. Change or cancel anytime.
Chart — $9/mo
1 persona · full synthesis · endpoint
Popular
Constellation — $24/mo
Up to 5 personas · team access
Ephemeris — $79/mo
Unlimited · custom domain · webhooks
Complete Your Order
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Order Summary
Studio Plan$24/mo
14-day free trial$0.00
Annual discount (20%)-$0
Due today$0.00
✦ No charge for 14 days Cancel before trial ends and you won't be billed.
Your Personas
Each chart holds a character. Each character shapes a voice.
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MCP Integration
Persona ID
Click a persona card to view its Persona ID and MCP endpoint.