Full-Stack AI SaaS Development
Complete AI SaaS platforms built on Next.js — frontend, backend, database, authentication, payments and the AI features that make the product work.
Fahymas LLC — Software development for business
AI software, built and delivered to a fixed scope.
Fahymas LLC builds AI SaaS platforms, LLM integrations, chatbots, browser extensions and data automation for businesses. Standard packages carry a published price. Larger projects are quoted from your requirements.
- Legal entity
- Fahymas LLC
- Focus
- AI applications, SaaS and automation
- Engagement
- Fixed-price packages or custom quote
- Payment
- Invoiced through Stripe
Core capabilities
- AI SaaS platforms
- LLM integration
- RAG chatbots
- Browser extensions
- Debugging
- Data extraction
Services
What we build.
Each service has a defined scope, a published starting package and a full description of what you receive. Every service is listed on the services page.
View service and pricing
AI API Integration & LLM Applications
AI features added to an application you already run — model integration, RAG over your own data, agents and LLM workflows, delivered as tested source code.
AI Chatbot & RAG Development
Chatbots grounded in your own documents and data, so answers come from your material rather than from the model's general knowledge.
Browser Extension Development
Extensions for Chrome, Firefox and Edge — automation of repetitive in-browser work, API and AI integrations, built to Manifest V3.
JavaScript, React & Next.js Debugging
Root-cause diagnosis and repair of defects in existing JavaScript, TypeScript, React, Next.js and Node.js code.
Pricing
Start here, or ask for a quote.
These are the entry packages for our three most requested services. Every package is listed on the pricing page.
Full-Stack AI SaaS Development
BASIC — MVP Prototype
$525
Best for Testing an idea or validating early users with a working product rather than a mockup.
A minimal but functional AI SaaS prototype — ideal for testing an idea or validating early users.
- Functional Web App
- AI model integration
- Chatbot integration
- Source Code
AI API Integration & LLM Applications
AI API Integration
$315
Best for Adding one well-defined AI capability to an application that already exists.
Integrate OpenAI, ChatGPT or Claude API into an app: one feature, tested, with source code.
- AI model integration
- Database integration
- Source code
- Detailed code comments
AI Chatbot & RAG Development
40 Min Consultation
$105
Best for Working out what a chatbot should do, and whether it is the right approach, before committing to a build.
40-minute consultation to discuss needs and explore custom solutions using LLM-app expertise.
- Consultation / scoping session
This entry-level package is a scoping consultation rather than a completed chatbot. Build work is quoted separately once the requirements are defined.
Request this packagePackage pricing applies to the scope described. Requirements outside that scope are reviewed separately and included in a written proposal before any additional work begins. All prices are in US dollars (USD) and exclude any taxes that may apply. Larger or more complex projects are quoted individually.
Working with Fahymas
How we run projects.
These are working practices, not performance claims. Anything specific to your project is agreed in writing before development starts.
Fixed scope, written down
What is included and what is not is agreed in writing before development starts.
Published package pricing
Standard packages carry a published price, so you know the cost before you inquire.
Source code handed over
Every engagement delivers tested source code and the documentation to work with it.
Direct technical contact
You talk to the developer doing the work, not an account manager relaying messages.
Authorization checked first
For automation and data work, we confirm your rights to the systems involved before starting.
Invoiced, not checked out
Work is quoted and invoiced through Stripe. There is no shopping cart and nothing is charged automatically.
Technology
The stack we work in.
The stack for a given project is confirmed during scoping. These are the technologies used across current services.
Frontend
- Next.js 15+
- React
- TypeScript
- Tailwind
- ShadCN
Backend
- Node.js
- Express
- Python
- Prisma
- PostgreSQL
AI
- OpenAI
- Claude
- Gemini
- Groq
- LangChain
Retrieval
- Pinecone
- pgvector
- embeddings
- hybrid RAG
Automation & data
- Selenium
- Puppeteer
- Scrapy
- BeautifulSoup
Delivery
- Vercel
- AWS
- Stripe
- Manifest V3
Technology and provider names describe technical capability only. Fahymas LLC is not affiliated with, endorsed by, or an official partner of any company named above.
Process
From inquiry to delivery.
There is no checkout on this website. Work is quoted, agreed and invoiced. The process page sets out every step.
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01
Project inquiry
You describe what you need through the inquiry form, by email or by phone. No charge and no obligation.
-
02
Requirements review
We read what you sent and come back with questions where the scope is unclear.
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03
Package or scope confirmation
We confirm whether a published package fits the project, or scope a custom quote.
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04
Written proposal
You receive deliverables, approach, exclusions, timeline, fee and payment schedule in writing.
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05
Agreement and invoice
Once you accept, terms are confirmed and Fahymas LLC issues an invoice through Stripe Invoicing.
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06
Development and delivery
Work proceeds against the agreed scope, is tested, and is delivered digitally with documentation.
Delivery times shown with each package apply to that package scope and start once the project brief and any required access are supplied.
About
Fahymas.
Fahymas LLC — Software development for business clients
A development company, not a marketplace.
Fahymas LLC is a United States–registered software development company. Work is scoped against your requirements, quoted in writing, invoiced through Stripe and delivered as source code, deployment and documentation.
- US-registered company operating remotely
- Clients purchase development services, not products
- All work delivered digitally — nothing is shipped
Next step
Have a project in mind?
Tell us what you need. We review the requirements and confirm whether a published package fits or a custom quote is the right route.