The request "Astro Agents" names a specific product, so it comes first: Astro Agents is a deterministic Western and Vedic astrology API built for AI agents, using the JPL DE440 ephemeris and paid per call with no account or API key 7. Alternatives that offer similar astrology computation for developers and agents are Ephemengine's Caelus suite 2, Open Ephemeris 1, and MysticAPI 4.
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Open Ephemeris APIopenephemeris.comwebsite read, tools not yet checked
REST ephemeris API backed by NASA JPL DE440 with 137 endpoints for natal charts and transits, plus an MCP server for AI agents 1.
official:MCP server · Open Ephemerispackage · Open Ephemeris
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- 1Open Ephemeris — Ephemeris API for Developers & AI Agentsopenephemeris.com · read 2026-10-29
- 2Caelus, holding the veil of the skyephemengine.com · read 2026-10-29
- 4MysticAPI — Human Design & astrology engine APImysticapi.com · read 2026-10-29
- 7Astro Agents - deterministic astrology API for AI agentsastro-agent.dev · read 2026-10-29
For agents: the 10 actions behind this answer
· Open Ephemeris website read, tools not yet checked
Precision ephemeris API backed by NASA JPL DE440. 137 production endpoints for natal charts, transits, astrocartography, human design, and more. Free tier (150 credits, one-time). Wallet top-ups from $5. Subscriptions from $29/mo (75,000 credits). Enterprise on request.
sky_events · caelus-mcp verified and signed
Sky events in a UTC date range: rise/set/meridian transits (need lat+lon+body), lunar phases (new/quarters/full), solar and lunar eclipses, stations (body turns retrograde/direct; needs body), zodiac degree crossings (needs body + target_lon). Solar eclipses report global circumstances (type, magnit
winmd-api-search · winmd-api-search verified and signed
Find and explore Windows desktop APIs. Use when building features that need platform capabilities — camera, file access, notifications, UI controls, AI/ML, sensors, networking, etc. Discovers the right API for a task and retrieves full type details (methods, properties, events, enumeration values).
· MysticAPI website read, tools not yet checked
Deterministic Human Design (Energy Blueprint) and astrology API: bodygraph charts, personal-sky SVG, and today’s sky. Flat pricing, MCP server, JPL-validated ephemeris.
list_data_sources · opensearch-flux found in code, not yet checked
List available data sources on an OpenSearch instance
· Imcce website read, tools not yet checked
Presentation This open-source library is designed to access the binary planetary ephemeris files, such INPOPxx, JPL DExxx and SPICE ephemeris files. This library provides a C Application Programming Interface (API) , Fortran 77/2003, Python 3 and octave/Matlab interfaces to be called by the applicat
· Astro Agents website read, tools not yet checked
Deterministic Western + Vedic astrology API for AI agents: JPL DE440 ephemeris, no LLM, reproducible SHA-256 hashes.
· Astromatic.net website read, tools not yet checked
Forecast API · RoxyAPI verified and signed
Astrology forecast API that merges upcoming transit aspects, sign ingresses, retrograde stations, new and full moons, biorhythm critical days, and Vimshottari dasha changes into one time-ordered forecast for a single subject, with positions verified against NASA JPL Horizons. One key covers every Ro
· Cosmic Ephemeris website read, tools not yet checked
78 live Cosmic Ephemeris calculation APIs for birth charts, synastry, transits and Vedic charts. Readings and Tarot. 500 free monthly standard requests.
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.