Services

Software development services.

Fahymas LLC provides these services on a project basis. Each one lists what the work covers, where it is used, what you receive, and the published starting package.

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01

Full-Stack AI SaaS Development

End-to-end development of an AI-powered SaaS product. The build covers the interface, the server-side application, data storage, authentication, subscription billing and the AI functionality itself, delivered as tested source code and deployed to your environment.

What this covers

  • Full-stack AI SaaS app with Next.js 15+
  • Chatbots and assistants using OpenAI, Groq or Gemini
  • RAG systems with Pinecone or custom data sources
  • Authentication, payments and admin dashboards
  • Modern UI/UX with Tailwind, ShadCN and Framer Motion
  • Deployment on Vercel or AWS
  • Third-party API and internal-tool integrations
  • Stripe subscriptions or one-time payments
  • Custom AI agents, tool calling, fine-tuning, MCPs, vector search and hybrid RAG

What you receive

  • A working full-stack AI SaaS web application; responsive frontend and backend; configured AI feature(s); authentication where required; Stripe payment/subscription integration where scoped; database setup; admin/dashboard functionality where scoped; tested source code; deployment-ready or production deployment; handover of the completed application.

Technologies

  • Next.js 15+
  • TypeScript
  • React
  • Express/Node.js
  • Prisma
  • PostgreSQL
  • LangChain
  • Stripe
  • Tailwind
  • ShadCN
  • Framer Motion
  • Vercel/AWS
Discuss this project

02

AI API Integration & LLM Applications

Integration of OpenAI, Claude, Gemini or other model APIs into an existing application. The workflow, data handling and failure behavior are designed as part of the build, and the result is handed over as production-ready source code with implementation notes.

What this covers

  • OpenAI, ChatGPT, Claude or Gemini API integration into an existing app
  • RAG systems and assistants over proprietary data using LangChain, Pinecone or pgvector
  • Custom AI agents with function calling, tools and automation
  • LLM features for chat, summarization, classification, content and data pipelines
  • Deployment on Vercel or AWS
  • Clean source code and production-ready implementation
  • Fine-tuning, MCPs, vector search and hybrid RAG where needed

What you receive

  • A working AI feature integrated into the customer's application; configured OpenAI/ChatGPT/Claude/Gemini connection as scoped; RAG, agent, chatbot or LLM workflow where ordered; database/vector-store integration where required; tested source code; implementation notes/code comments; production-ready integration and deployment support where scoped.

Technologies

  • GPT
  • Gemini
  • Claude; JavaScript
  • Python
  • TypeScript; Next.js
  • AI SDK
  • LangChain
  • vector databases
Discuss this project

03

AI Chatbot & RAG Development

Retrieval-augmented chatbots built on content you approve — PDFs, documentation, websites or databases. The bot is grounded, tested for answer quality, and embedded in the channel your customers or team already use.

What this covers

  • RAG chatbot answering from PDFs, documents, websites or databases
  • Document Q&A and FAQ automation
  • Customer support, lead-generation and internal-knowledge assistants
  • Lead capture and human handoff
  • Multilingual, always-on, on-brand chatbot experiences
  • Website widget, API, WhatsApp, Slack or Messenger delivery channels
  • OpenAI, Claude, Gemini, Groq and other supported LLMs
  • Pinecone or pgvector embeddings with LangChain and Postgres
  • Guardrails, evaluations and fine-tuning when needed
  • Ongoing support and maintenance options

What you receive

  • A consultation or completed AI chatbot solution depending on the selected scope; chatbot grounded on the customer's approved documents/data where required; RAG/vector database configuration where scoped; selected LLM integration; website/API/messaging integration where scoped; testing for response quality; source code and launch/deployment support for development packages.

Technologies

  • OpenAI GPT
  • Claude
  • Gemini
  • Groq
  • LangChain
  • Pinecone
  • pgvector
  • Drizzle
  • Postgres
  • Vercel AI SDK
  • JavaScript
  • TypeScript
  • React
Discuss this project

04

Browser Extension Development

Custom browser extensions for productivity and business workflows, built to the permission model and publishing requirements of the relevant extension store, and handed over as complete source code.

What this covers

  • Custom extension development for Chrome, Firefox and Edge
  • API integrations including AI APIs
  • Browser automation for forms, repetitive tasks, clicks and multi-tab workflows
  • HTML manipulation and DOM traversal
  • Web data parsing and export to JSON, CSV, XML, Excel or Sheets
  • UX/UI enhancements
  • Performance optimization and security enhancements
  • Authentication, licensing and payment integrations for monetized extensions
  • Manifest V3 development or migration
  • Assistance with browser-store deployment

What you receive

  • A working browser extension for the agreed browser(s); requested automation or extension functionality; user interface where required; API/AI integrations where scoped; Manifest V3-compatible source code where applicable; tested extension package; complete source code; installation/testing guidance and store-deployment assistance where scoped.

Technologies

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • Plasmo
  • Manifest V3
  • Express.js
  • Node.js
  • jQuery
  • Tailwind CSS

Extensions are built for lawful, authorized use. Fahymas LLC does not develop extensions intended for credential stuffing, account takeover, fake-account creation, CAPTCHA bypass, authentication bypass, security-control circumvention, detection evasion, platform abuse, spam, fraudulent automation or unauthorized account manipulation. Automation is built for systems and accounts you own or are authorized to use.

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05

JavaScript, React & Next.js Debugging

You send the bug and the code; you get back a diagnosis, a tested fix, and an explanation of what was actually wrong. Useful when a problem has resisted your own debugging or when you need a second pair of eyes before a release.

What this covers

  • JavaScript and TypeScript logic, async, DOM and API errors
  • React and Next.js hooks, state, rendering, hydration, routing and SSR/CSR issues
  • Node.js and API/integration issues
  • HTML/CSS layout, responsiveness and cross-browser problems
  • Browser-extension and automation-script bugs
  • Code cleanup for performance and readability
  • Root-cause analysis, tested fixes and clear explanation

What you receive

  • Diagnosis of the reported bug or error; corrected JavaScript/TypeScript/React/Next.js/Node.js code within the agreed scope; tested fix; cleaned code where necessary; explanation/documentation of the fix; detailed code comments where included.

Technologies

  • JavaScript
  • TypeScript
  • React
  • Next.js
  • Node.js
  • Express.js
  • NestJS
  • Flask
  • Bootstrap
  • jQuery
  • Tailwind CSS
Discuss this project

06

Authorized Data Extraction & API Automation

Extraction pipelines that collect the fields you need from sources you have the right to use, cleaned and delivered in your preferred format. Every project starts with a review of the source and your authorization to collect from it.

What this covers

  • Web scraping and crawling at scale, including dynamic sites
  • Data mining, research and structured extraction
  • Authorized collection from authenticated or technically challenging sites where you hold the account and the right to access it
  • REST API integration and data formatting
  • Delivery as clean data or a reusable script
  • Python scraping with Selenium, BeautifulSoup or Scrapy
  • JavaScript automation with Puppeteer / Node
  • Output to CSV, JSON, Excel, SQL, XML and other formats

What you receive

  • Clean structured data extracted from the agreed source(s) or a reusable scraping/automation script, depending on the package; requested fields collected and formatted; data cleanup; sample/testing before final delivery where applicable; output in the agreed format such as CSV, JSON, Excel, SQL or XML; source code for script-based packages where included.

Technologies

  • Python
  • Selenium
  • BeautifulSoup
  • Scrapy
  • JavaScript
  • Puppeteer
  • Node.js; CSV
  • JSON
  • Excel
  • SQL
  • XML

Before any work begins, Fahymas LLC reviews the source and requires written confirmation that you have lawful access and the authorization to collect the data requested. Fahymas LLC does not provide credential harvesting, unauthorized personal-data harvesting, access-control or security circumvention, CAPTCHA bypass, detection evasion, or extraction from private systems without permission. Where a source's terms or applicable law do not permit collection, the project is declined.

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07

Authorized JavaScript Code Analysis & Maintenance

Legacy and inherited JavaScript is often unreadable — minified, obfuscated by a previous build process, or simply undocumented. This service converts code you own into a clean, readable and maintainable form so your team can work on it again.

What this covers

  • Recovering readable source from obfuscated or minified JavaScript you own
  • Converting inherited code into clean, readable and maintainable code
  • Troubleshooting legacy or difficult-to-understand scripts
  • Supporting code connected with Node.js, APIs, GraphQL and databases
  • Supporting SQL and NoSQL-connected JavaScript
  • Code modifications after analysis when scoped
  • Testing and installation assistance

What you receive

  • Readable and maintainable JavaScript produced from the submitted obfuscated/encoded code within the agreed scope; cleaned structure and naming where possible; working/tested script; installation/testing assistance; explanation of relevant modifications when included in the order.

Technologies

  • JavaScript
  • jQuery
  • Node.js
  • APIs
  • GraphQL
  • SQL
  • NoSQL

Ownership or written authorization is required before work begins. Fahymas LLC works only on code you own, code licensed to you with modification rights, code you are authorized to provide, or code inherited as part of a system you operate. Fahymas LLC does not perform DRM bypass, license cracking, protection circumvention, software piracy, or unauthorized reverse engineering of proprietary third-party code. Where ownership or authorization cannot be evidenced, the project is declined.

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Pricing

Published starting packages.

Every service has a published entry package. Larger scope is quoted individually after a requirements review.

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.

Delivery
7 days
Revisions
Unlimited
  • Functional Web App
  • AI model integration
  • Chatbot integration
  • Source Code
Request this package

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.

Delivery
5 days
Revisions
Unlimited
  • AI model integration
  • Database integration
  • Source code
  • Detailed code comments
Request this package

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.

Delivery
3 days
Revisions
Not listed
  • 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 package

Browser Extension Development

Basic

$315

Best for A single-purpose extension with one clear job to do.

Simple browser extension with basic functionality.

Delivery
3 days
Revisions
Unlimited
  • Source code
Request this package

JavaScript, React & Next.js Debugging

Simple bug

$105

Best for One well-defined bug you can describe and reproduce.

Fix one simple bug.

Delivery
2 days
Revisions
2
  • Bug investigation
  • Fix documentation
  • Detailed code comments
Request this package

Authorized Data Extraction & API Automation

Data Extraction without script

$210

Best for A one-off dataset from a single source, delivered as clean data rather than as a tool you run yourself.

Extract data from a specified website, up to 1,000 records, delivered in CSV, JSON or SQL.

Delivery
2 days
Revisions
Unlimited
  • 1 source scraped
  • 100 pages scraped
  • Formatting & clean up
Request this package

Authorized JavaScript Code Analysis & Maintenance

Size < 10kb

$105

Best for A single small script you own and need returned in readable form.

JavaScript analysis package for a small script.

Delivery
2 days
Revisions
Unlimited
  • Install script
  • Test script
Request this package

Package 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.

Authorized use

Fahymas LLC provides development and automation services for lawful, authorized business use. Clients are responsible for holding the necessary rights and permissions for the systems, data, websites, APIs and software involved in their projects.

Where a project would require access to systems the client is not authorized to use, or would conflict with applicable law, a platform's terms or a third party's rights, Fahymas LLC declines the work.

Next step

Not sure which service fits?

Describe the problem rather than the solution. We will tell you which service and package applies, or quote it individually.

Start a project