I will integrate ai API into your app or website


About this gig
Add Claude or GPT to your app the right way with proper error handling, streaming, and cost control.
Most "AI integrations" are copy-pasted from tutorials and break the moment something goes wrong: rate limits, timeouts, malformed responses, runaway token costs. I build integrations that survive production.
What I integrate: Claude (Anthropic) and GPT (OpenAI) chat + completion Streaming responses (real SSE, not polling hacks) Embeddings for semantic search / RAG Function calling / tool use Vision inputs and structured outputs (JSON mode)
Platforms: Python (FastAPI, Flask, Django), Node.js (Express, Next.js), serverless (Vercel, Lambda, Cloudflare Workers)
You get: Clean, documented code that drops into your project Proper error handling and retry logic Secure environment variable setup Working examples you can run immediately Short written handover for your team
I run my own AI systems on a dedicated server daily I've already made the expensive mistakes so you don't have to.
Before ordering: please message me with your stack, use case, and any sample code so I can confirm scope and timing.
Get to know Steffen D
AI Enthusiast
- FromNorway
- Member sinceDec 2017
- Avg. response time1 hour
Languages
English, Norwegian
FAQ
Which API should I use?
Happy to advise. Claude is usually stronger at reasoning and following detailed instructions. GPT has broader tool ecosystem support. For most integrations either works well — message me with what you're building and I'll give you an honest recommendation.
Do I need to provide my own API key?
Yes. You provide your own Anthropic or OpenAI key so you control billing and usage — I never use my own keys for client work. If you haven't set one up yet, I'll walk you through it. This keeps your costs transparent and your data in your account only.
Can you work with my existing codebase?
Yes, as long as it's Python, JavaScript/TypeScript, or Node.js. I integrate into your existing structure rather than forcing a rewrite. For other languages (Go, Ruby, PHP), message me first with a sample file — most REST-based integrations are doable but I want to confirm fit first.
Will this help reduce my API costs?
The Premium package includes cost optimization — token counting, response caching, and recommending cheaper model tiers (e.g. Haiku instead of Sonnet) for tasks that don't need top-tier reasoning. Basic and Standard follow sensible defaults. For deep cost work, message me for a custom offer.
What do you need from me to start?
Three things: a clear description of what the integration should do, access to your codebase (GitHub invite, zip, or the relevant files), and your API key ready to go. The more detail you give upfront, the faster I can deliver. I'll ask clarifying questions right after you order.

