{"uid":"cap_FfqgyVrVz2vt7mD6Fz3Xy","slug":"astro-agents-western-natal-chart-api-df96e7a4","name":"Astro Agents Western Natal Chart API","description":"Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes.","url":"https://astro-agents-api.vercel.app/v1/western/natal?utm_source=zero.xyz","method":"POST","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method","bodyType","body"],"properties":{"body":{"type":"object","required":["latitude","longitude"],"properties":{"date":{"type":"string"},"time":{"type":"string"},"options":{"type":"object","properties":{"orbs":{"type":"object","additionalProperties":{"type":"number","maximum":15,"minimum":0}},"points":{"oneOf":[{"enum":["all"],"type":"string"},{"type":"array","items":{"enum":["sun","moon","mercury","venus","mars","jupiter","saturn","uranus","neptune","pluto","mean_node","true_node","mean_lilith"],"type":"string"}}]},"zodiac":{"enum":["tropical","sidereal"],"type":"string","default":"tropical"},"aspects":{"oneOf":[{"enum":["all"],"type":"string"},{"type":"array","items":{"enum":["conjunction","opposition","trine","square","sextile","quincunx","semisextile","semisquare","sesquiquadrate","quintile","biquintile"],"type":"string"}}]},"ayanamsa":{"enum":["fagan_bradley","krishnamurti","lahiri","raman","true_chitrapaksha","yukteshwar"],"type":"string","default":"lahiri"},"house_system":{"enum":["alcabitius","campanus","equal","koch","meridian","morinus","placidus","porphyry","regiomontanus","topocentric","whole_sign"],"type":"string","default":"placidus"},"luminary_orb_bonus":{"type":"number","default":2,"maximum":5,"minimum":0}}},"datetime":{"type":"string"},"latitude":{"type":"number","maximum":90,"minimum":-90},"timezone":{"type":"string"},"longitude":{"type":"number","maximum":180,"minimum":-180},"time_basis":{"enum":["civil","utc","lmt","true_solar"],"type":"string","default":"civil"},"ambiguous_time":{"enum":["earlier","later"],"type":"string","default":"earlier"}}},"type":{"type":"string","const":"http"},"method":{"enum":["POST","PUT","PATCH"],"type":"string"},"bodyType":{"enum":["json","form-data","text"],"type":"string"}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":{"type":"json","example":{"meta":{"engine":"astro-agents/1.0.0","llm_used":false,"ephemeris":"NASA/JPL DE440 (1800-01-01..2200-01-01)","deterministic":true,"result_sha256":"be1fb244a2d60d64f2996cbccab5d7603af0c17e9127b5cb558c58e72f56adfe"},"endpoint":"western/natal","result_excerpt":{"summary":{"sun_sign":"Taurus","moon_sign":"Capricorn","chart_ruler":{"modern":"Mercury","traditional":"Mercury"},"rising_sign":"Virgo"},"ascendant":"10°14'44\" Virgo"}}},"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.06","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"registry","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.06/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.06","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_cfr1RpY6TftlISGAfJyPM","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.06","costPer":"request","priority":0,"asset":null,"unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Computes a deterministic Western astrology natal chart from birth coordinates and time using NASA/JPL DE440 ephemeris, returning planetary positions, house cusps, aspects, and chart summary with a reproducible SHA-256 hash.","exampleAgentPrompt":"Calculate my Western natal birth chart for someone born on April 28, 1990 at 7:45 AM civil time in London (51.5074° N, 0.1278° W), using Placidus houses and tropical zodiac — I want to know my sun sign, moon sign, rising sign, and the major aspects between planets.","exampleUseCases":[{"title":"Personal birth chart for astrology app","prompt":"I was born on March 15, 1985 at 10:30 AM in San Francisco (37.7749° N, 122.4194° W). Can you calculate my full Western natal chart using Placidus houses and tropical zodiac, and tell me my sun sign, moon sign, rising sign, and chart ruler?"},{"title":"Astrological research reproducibility check","prompt":"I need a deterministic natal chart calculation for a historical figure — born January 20, 1920 at 3:00 PM UTC at latitude 48.8566, longitude 2.3522. Use Whole Sign houses and give me the SHA-256 hash so I can verify the result is reproducible."},{"title":"Vedic-style sidereal chart comparison","prompt":"Can you compute a natal chart for someone born on July 4, 1990 at 9:15 AM in Chicago (41.8781° N, 87.6298° W) using sidereal zodiac with Lahiri ayanamsa and equal houses, so I can compare it to their tropical Western chart?"}],"resultDescription":"Returns a JSON object with a meta block (engine version, ephemeris used, deterministic flag, result SHA-256 hash) and a result containing: a summary with sun sign, moon sign, rising sign, and chart ruler (modern and traditional); ascendant degree; planetary positions for requested points; house cusp degrees; and calculated aspects between planets based on selected orbs.","failureModes":["Missing required latitude or longitude returns a validation error","Invalid date/time format causes a parsing failure","Latitude or longitude out of range (-90 to 90 / -180 to 180) returns a constraint violation","Unknown timezone string causes a timezone resolution error","Payment failure (x402) prevents execution and returns a payment-required response","Orb values exceeding 15 degrees are rejected by schema validation"],"whenToPreferThis":"Choose this endpoint when you need a mathematically precise, reproducible natal chart calculation backed by NASA/JPL DE440 ephemeris data — ideal for astrology apps, research, and AI agents that must guarantee the same input always produces the same output (verified via SHA-256). Prefer this over LLM-based astrology responses when accuracy, auditability, and support for multiple house systems (Placidus, Whole Sign, Koch, etc.) and zodiac types (tropical/sidereal) matter.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-12T18:30:15.756Z","isFirstParty":false,"canonicalSlug":"astro-agents-western-natal-chart-api-df96e7a4"}