Daniel O.

AI Agent Developer | MCP Server, Claude API, RAG | Next.js & Supabase

𝗜 𝗯𝘂𝗶𝗹𝗱 𝗔𝗜 𝗽𝗿𝗼𝗱𝘂𝗰𝘁𝘀 𝘁𝗵𝗮𝘁 𝗿𝗲𝗮𝗰𝗵 𝗽𝗮𝘆𝗶𝗻𝗴 𝘂𝘀𝗲𝗿𝘀 — 𝗻𝗼𝘁 𝗱𝗲𝗺𝗼𝘀. A founder hired me to build an AI relationship-analysis platform. It is live today with 150+ paying users — Claude API, RAG retrieval, Stripe subscriptions. Another client went from zero to launch on a real-estate SaaS in under three weeks. Top Rated on Upwork, 34 contracts delivered. I take AI products from idea to revenue and own the whole stack while I do it: the LLM layer, the backend, billing, deployment, and the error handling that keeps it running at 2am without you. 𝗛𝗼𝘄 𝗜 𝗗𝗲𝗹𝗶𝘃𝗲𝗿 ➤ AI Agents & Automation Agents that do real work — research, triage, data extraction, outreach, reporting — built on the Claude API, OpenAI API and LangChain, wired into the tools your business already uses. ➤ RAG & Knowledge Retrieval Retrieval-Augmented Generation over your own documents and data. Embeddings, pgvector, chunking strategy, retrieval evaluation — so answers cite your data instead of hallucinating. ➤ MCP Servers & Tool Integration I build Model Context Protocol servers that let Claude and other AI clients query your product directly. Your app becomes a tool your customers can talk to from inside their own AI workflow. ➤ AI Chatbots & Conversational Products Support bots, in-app assistants and customer-facing chat with streaming, memory, guardrails and human handoff. ➤ AI SaaS Platforms Full products from zero: Next.js, React, TypeScript, Supabase, PostgreSQL, Node.js. Multi-tenant auth, role-based access, Row-Level Security, Stripe subscriptions, admin panels and REST APIs. ➤ Rescuing AI-Generated Builds Half-finished apps from Lovable, Cursor, Base44, Bolt and Replit that demo well and break under load. I read the codebase, tell you what is salvageable before you commit a budget, then ship it. ➤ Production Deployment & Maintenance Vercel, Azure and AWS. Supabase, CI/CD, monitoring, cost control on LLM spend, and ongoing monthly maintenance once you are live. ✅ 𝗪𝗵𝘆 𝗖𝗹𝗶𝗲𝗻𝘁𝘀 𝗧𝗿𝘂𝘀𝘁 𝗧𝗵𝗶𝘀 𝗪𝗼𝗿𝗸 - Shipped, not prototyped. Live products with real users and real revenue. - Claude-first. I work in the Claude API and Claude Code daily, and I train other developers on both. - You talk to me directly. No account managers, no handoff to a junior. - A deployed link after every milestone, never a status report at the end. - I write down what I cannot do before you pay me, not after. 📂 𝗥𝗲𝗰𝗲𝗻𝘁 𝗪𝗼𝗿𝗸 - Wellness — AI relationship-analysis platform, 150+ paying users. Claude API, RAG retrieval, Stripe subscriptions, live in production. - Real Estate — multi-tenant listing and vendor SaaS. Agent/vendor role separation, magic-link portals, encrypted access codes, audit logging. Zero to client launch in under three weeks. - Fintech — stock screener with AI chat, a public REST API and an MCP server so Claude can query market data directly. - Sales — AI proposal SaaS I built and run myself: multi-tenant, subscription billing, paying customers. - Education — two-sided school/teacher marketplace with role-based access. - Home Services — AI vision tool that prices items from photographs. 𝗪𝗵𝗮𝘁 𝗜 𝗗𝗼𝗻'𝘁 𝗗𝗼 WordPress or Shopify theme work. Design-from-scratch branding. No-code builds I cannot get into the code of. Month-long discovery before anything ships. If that is what you need I will say so on the first call instead of taking the contract. 𝗧𝘆𝗽𝗶𝗰𝗮𝗹 𝗘𝗻𝗴𝗮𝗴𝗲𝗺𝗲𝗻𝘁𝘀 - Audit or rescue of an existing build: $500 – $1,500 - Full AI product, zero to live: $3,000 – $8,000 over 3–6 weeks - Multi-phase platform work: $8,000+ - Ongoing maintenance and support: hourly, from $25 𝗛𝗼𝘄 𝗪𝗲 𝗦𝘁𝗮𝗿𝘁 Send me your repo, your Lovable or Base44 link, or the idea in a document. I will send back a short recorded walkthrough — what is broken, or what I would build, and how I would phase it. That part is free, before you commit to anything.