Swiss Ephemeris REST API — Python/FastAPI Astrology Backend

@diektech

Hi, This is Elias from Miami. I checked your project description and understand you’re looking to develop a Python/FastAPI REST API that generates accurate natal astrology charts using Swiss Ephemeris. This sounds like an exciting project! I have experience building similar APIs and understand the nuances involved in integrating complex calculations. I’m confident I can deliver a robust solution that meets your needs. I’d love to discuss the specifics further and explore the best technical approach for this project. I have a few questions to get a better understanding: Q1 – What specific features do you want in the astrology chart calculations? Q2 – Are there any existing systems or databases that need to be integrated? Q3 – What user roles do you envision for accessing this API? Looking forward to hearing from you.

@Mahihassi

As a well-rounded professional with profound expertise in Python and API Development, I am confident that my team at MHTechFusion can deliver exceptional results for your Swiss Ephemeris REST API in FastAPI. Our core strengths lie in full-stack development, backend architecture, and scalable API construction, which align perfectly with your project requirements. At MHTechFusion, we have an unmatched track record of implementing cloud integration and deployment for end-to-end IoT platforms. This includes data analytics and dashboards, essential for real-time monitoring and reporting - qualities your celestial chart calculator demands. As you mentioned the need to match professional ephemeris with sub-arcminute accuracy, we will ensure the highest precision using proven techniques and rigorous testing. Moreover, our experience in building CRMs, custom SaaS platforms, and internal tools makes us ideal for this task. We don't just construct software solutions; we create sustainable systems designed to stand the test of time. With a comprehensive understanding of databases such as PostgreSQL and MongoDB, deploying via Docker will be second nature to us. Choose my team at MHTechFusion for a robust astrology backend that not only matches but surpasses your expectations.

@Herculesz

Hi I have strong experience building Python/FastAPI REST APIs with high-precision calculation pipelines, Dockerized deployment, and data integrations, and this project is a strong fit for my backend skill set. The main technical challenge here is not just generating astrology outputs, but making Swiss Ephemeris calculations fully consistent across natal charts, houses, aspects, transits, progressions, and synastry with sub-arcminute accuracy against professional ephemeris references. I can build the API around pyswisseph with a clean service layer for planetary positions, house cusps, aspect detection, time conversions, and location resolution using the GeoNames cities500 dataset. To keep the results reliable, I would structure the system with strict UTC/timezone normalization, deterministic calculation logic, and validation tests against known reference charts for all 13 bodies and 10 house systems. I can also design separate endpoints for chart generation, transits, secondary progressions, and synastry, with response schemas that stay consistent and easy to consume from web or mobile clients. For performance and maintainability, I would containerize the full stack with Docker, isolate ephemeris files/configuration properly, and organize the project so future extensions like caching, auth, or chart history can be added cleanly. Thanks, Hercules

@devendrathakur12

i’ve done very similar recently, built astrology APIs using pyswisseph + FastAPI with high-precision chart calculations. Do you want precomputed ephemeris caching per timestamp/location or fully on-demand calculations? Which house systems and ayanamsa defaults should be applied for consistency across endpoints? I suggest adding a caching layer (Redis) for repeated chart queries to reduce compute time and improve API latency. I also recommend strict input normalization (UTC conversion + geolocation validation) to avoid subtle calculation errors. I will first set up Swiss Ephemeris bindings and validate outputs against reference charts. Then I will build FastAPI endpoints for natal, transits, progressions, and synastry with modular calculation layers. Finally I will integrate GeoNames lookup, containerize with Docker, and run accuracy + load tests. Best, Dev S.

@DeveloperStation

Hi there, We’ve built multiple astrology platforms using Python and JavaScript, integrating with APIs like Swiss Ephemeris and AstroSeek. We understand the importance of accurate calculations and have developed solutions that deliver precise results. For your project, we can leverage our experience with FastAPI and similar frameworks to create a robust backend. We’ve also worked extensively with Docker, ensuring seamless deployment and CI/CD pipeline integration. Let’s schedule a 10-minute introductory call to discuss your project in detail and see if I’m the right fit. I usually respond within 10 minutes. I’m eager to learn more about your exciting project. Best, Adil

@mubeenm5026

As a dedicated team of 10 professionals at Web Crest, we pride ourselves on delivering intelligent and scalable solutions that perform — exactly what your astrology API project needs. With over a decade of hands-on experience, our skillset in API Development is well-honed, while our expertise in Python ensures meticulous and precise code. By developing accurate natal astrology charts using Swiss Ephemeris and incorporating GeoNames for birth location lookup, we guarantee swift and dependable results that match professional ephemeris to sub-arcminute accuracy. Apart from our technical abilities, our clients value our transparent workflow, clear communication, and reliable project completion record - aspects that I consider essential for long-term partnership. I should mention that we have a 98% project completion rate with consistent positive feedback. Lastly, you need more than just accurate astrology calculations - you need a solution that is easily scalable and deployable. Our experience with Docker deployment and cloud-native architectures means that not only will your API function flawlessly but it will also be flexible enough to evolve alongside your business. Let's leverage upon the reputation of delivering scalable, future-ready solutions for your valuable project together.

@kamran2012

Good to see this project, I will build your FastAPI astrology backend — natal chart calculations via pyswisseph for all 13 celestial bodies, house system support, aspects, transits, progressions, and synastry — with sub-arcminute accuracy verified against reference ephemeris data. One thing I will handle carefully: caching the GeoNames cities500 lookup in an indexed SQLite database rather than flat-file parsing on each request. This keeps location queries under a few milliseconds and avoids memory bloat in the Docker container, while still supporting the full ~200k city dataset. Questions: 1) Do you need authentication or rate limiting on the API, or will it sit behind an internal gateway? Looking forward to potentially working together. Thanks, Kamran

@juanjosec63

Hi, I have strong experience in Python, FastAPI, PostgreSQL, Docker, and precision-focused API development, including systems that require strict numerical accuracy, structured calculations, and clean, testable backend architecture. I can build a reliable astrology chart API around Swiss Ephemeris with support for natal charts, house systems, aspects, transits, progressions, synastry, and GeoNames-based location lookup, while keeping the implementation accurate, well-structured, and easy to deploy in Docker. You can expect clear communication, fast turnaround, and a high-quality result that fits seamlessly into your existing workflow. Best regards, Juan

@quan9824

Hi, I can build a precise, production-ready FastAPI service for natal astrology calculations using Swiss Ephemeris (pyswisseph), ensuring sub-arcminute accuracy aligned with professional standards. Approach: • Core engine: pyswisseph for planetary positions (13 bodies), houses (10 systems), aspects, transits, progressions, and synastry • API layer: FastAPI with clean, well-documented endpoints • Location lookup: GeoNames cities500 integration with efficient indexing • Accuracy: strict validation against reference ephemeris outputs • Performance: caching + optimized calculations for repeated queries Features: • Natal chart calculations (full precision) • House systems support (Placidus, Koch, Whole Sign, etc.) • Aspect engine (orb handling, configurable rules) • Transits, progressions, synastry modules • Structured JSON responses for easy frontend use Deliverables: • Fully functional FastAPI service • Dockerized deployment (ready for production) • Clean code + documentation • Validation tests for accuracy I focus on accuracy, performance, and clean architecture, ensuring your API is reliable and extensible. Happy to review your detailed brief and start immediately.

@avinashdubeyg209

Noticed you need sub-arcminute accuracy for astrology charts with Swiss Ephemeris. Built a similar FastAPI backend integrating pyswisseph for a client last quarter, ensuring precision using Docker. Curious about the synastry requirements—are we focusing on traditional comparisons, or do you need composite charts as well? Can set up a demo to illustrate how I'd ensure seamless integration with GeoNames for accurate location handling. Let me know if you're interested in a quick chat to align on goals.

@OutsourceMan

⭐⭐⭐⭐⭐ With a rich experience of over 18 years, my team at CnELIndia can deliver the robust and high-performing Swiss Ephemeris REST API you need for your astrology backend. Our expertise lies in Python, FastAPI, and Docker, a skillset that aligns perfectly with your project requirements. We have prior experience working with data-intensive projects like yours, making us capable of handling the complex calculations needed for natal astrology. As an authority in API development, we understand the paramount importance of accuracy in any data-driven application. From supporting celestial bodies and house systems to providing accurate transit predictions and progressions, we’ve got you covered. Our experience developing detailed geospatial databases is another reason why we are a great fit for your project. We are well-versed with GeoNames cities500 which will facilitate precise birth location lookup. Finally, I want to emphasize on our commitment to quality combined with time and budget management. When you choose us, you choose a proven track record of exceeding client expectations while delivering within agreed upon timelines. So let's align the stars (pun intended!) and create a state-of-the-art astrology backend together! Allow me to further demonstrate how our solutions can bring your project the success it deserves.

@Hubready

Hello! I am a US-based senior software engineer with extensive experience in Python, API development, and backend systems. I've carefully read your project description regarding the Swiss Ephemeris REST API, and I'm excited about the opportunity to help you create accurate natal astrology charts. With over 15 years in the field, I specialize in building scalable, production-grade software solutions. I understand the importance of precision in astrology calculations and am well-equipped to deliver a robust API using FastAPI and PostgreSQL. Could you please clarify the following questions to help me better understand the project? 1. Are there specific performance benchmarks or response times you expect from the API? 2. Will there be any additional features or integrations required beyond the basic chart calculations? To ensure a successful outcome, I suggest starting with a detailed requirements analysis, followed by an agile development approach with regular updates. This way, we can adapt to any evolving needs throughout the project. I am committed to delivering a solution that meets your specifications and exceeds your expectations. Let's chat about how I can bring your vision to life! Best, James Zappi

@johnallenvillan1

Hello, I see you need a FastAPI backend capable of producing sub-arcminute‑accurate astrology calculations with Swiss Ephemeris, including 13 bodies, 10 house systems, aspects, transits, progressions, and synastry. I've built two production‑grade astrology engines before, each required validating Swiss Ephemeris outputs against professional software and delivering consistent precision. The real complexity here isn’t just calling pyswisseph, but managing time conversions, house system edge‑cases, synastry cross‑chart calculations, and ensuring all computations remain deterministic across Dockerized deployments. I’ll structure the service with well‑isolated computational modules, integrate GeoNames cities500 for location lookup, implement fully typed FastAPI endpoints, and store request metadata in PostgreSQL. I’ll also containerize everything with a reproducible Docker build pipeline. Before starting, I need clarity on data formats you expect for aspects, progressions, and returned angles. I can start immediately and provide a predictable delivery timeline once specs are confirmed. Thanks, John allen.

@AZTURK1

Hi there, I will build a production-grade Python/FastAPI service that uses pyswisseph to calculate natal charts, transits, progressions and synastry to professional ephemeris accuracy , I’ve delivered precise astrology tooling and production APIs before and I own deployments that require sub-arcminute numeric fidelity. - Implement FastAPI endpoints for natal charts, transits, progressions, synastry and aspect tables using pyswisseph (13 bodies) and support 10 house systems. - Integrate GeoNames cities500 into PostgreSQL for location lookup; provide validation and fallback coordinates. - Dockerize the app, include Dockerfile and docker-compose; add unit tests comparing outputs to reference ephemeris for sub-arcminute validation and CI checks. - Provide API docs (OpenAPI), deployment notes, and a rollback/test plan for safe releases. Skills: ✅ Python ✅ FastAPI ✅ pyswisseph (Swiss Ephemeris) ✅ PostgreSQL / Docker deployment ✅ numerical validation, precision testing, performance tuning Certificates: ✅ Microsoft® Certified: MCSA | MCSE | MCT ✅ cPanel® & WHM Certified CWSA-2 I’m available to start immediately. Do you have a preferred reference ephemeris file/version to validate sub-arcminute matching (or should I use DE431/Swiss Ephemeris default)? Best regards,

@techsty2014

Hello, I will build your astrology REST API in Python/FastAPI with pyswisseph, covering natal chart calculations for all 13 celestial bodies, 10 house systems, aspects, transits, progressions, and synastry. I will integrate the GeoNames cities500 database for location lookup and package everything in Docker for deployment. For sub-arcminute accuracy, I will validate every calculation output against a reference ephemeris table as part of the test suite. This means accuracy regressions get caught automatically on every code change, not just during manual spot checks. Questions: 1) Do you need the GeoNames data loaded into PostgreSQL for fast querying, or is a file-based lookup acceptable? 2) Should the API handle authentication and rate limiting, or will it sit behind an existing API gateway? Looking forward to discussing further.

@SmartCodeDev

Hello I can build your FastAPI-based astrology API using Swiss Ephemeris (pyswisseph) with high precision matching professional ephemeris standards. The API will support 13 celestial bodies, 10 house systems, aspects, transits, progressions, and synastry calculations. I will integrate GeoNames (cities500) for accurate location lookup and timezone handling. Endpoints will be clean, well-documented, and optimized for performance and accuracy (sub-arcminute level). The project will be fully containerized with Docker for easy deployment. Code will be structured, tested, and ready for production use. I have experience with FastAPI and precision-based calculation systems. Ready to review your detailed brief and start immediately.

@abdf2010

Hey, your project, Swiss Ephemeris REST API — Python/FastAPI project looks like a great fit for my skills. I've worked on similar Python projects and can deliver solid results. Let me know if you'd like to chat about the approach.

@slavkom1

Hi, I saw your need for a FastAPI backend that wraps Swiss Ephemeris with high accuracy. I’ve built several Python services that handle heavy calculation logic and know FastAPI and Docker well. I can put together a clean API that outputs natal charts, houses, aspects and the rest with tight sub‑arcminute precision. I’d approach it with: - endpoints for natal, transits, progressions, synastry - a module wrapping pyswisseph with consistent calculations - GeoNames lookup with PostgreSQL - Docker setup for easy deployment I can start right away and expect a working base within a few days. Do you already have a preferred data structure for returning multi-body aspect matrices? Greetings, Slavko

@Zawiya3

Having extensive expertise and experience in API Development, Docker, PostgreSQL, and Python, I am confident in my ability to deliver the highly-accurate Swiss Ephemeris REST API you need. Over the years, I have developed numerous APIs using Python & FastAPI and deployed them via Docker, making me proficient in integrating complex functionalities with ease. Additionally, my experience in data science will be an added advantage in accurate astrology chart calculations. I am very familiar with pyswisseph and its usage to achieve sub-arcminute accuracy in results. Moreover, I understand the importance of matching professional ephemeris details accurately for astrological purposes. Lastly, I'm skilled not only in pure technology but also graphic design and UI/UX - a genuinely unique blend. Since APIs demand effective presentation and usability of data for consumers, my understanding of designing responsive user interfaces can assist me in creating a user-friendly and visually-engaging API documentation for your project. A citation of my professionalism and customer satisfaction is reflected across industries such as fintech and healthcare that I've successfully delivered projects to. I would appreciate being given the opportunity to apply these skills to help provide a valuable service for your customers' reading with precision.