AI & Agentic Software · AI building blocks
Large Language Model API
Cloud services that give software access to large language models for writing, reasoning, coding, vision and tool use, paid per use.
Also searched as: LLM API · foundation model API
What it does
- Text, image and audio understanding
- Tool and function calling
- Structured outputs
- Long context windows
- Batch and streaming
Who uses it
Developers adding AI features to websites, apps and internal tools.
Well-known examples
Anthropic Claude API · OpenAI API · Google Gemini API · Amazon Bedrock · Azure AI Foundry
Buy, build or connect?
We integrate the right model for each job, with caching, fallbacks and cost controls, and keep you able to switch providers.
OpenAI, ChatGPT & Claude API Integration
Integrate large language models from OpenAI, Anthropic (Claude), Google and others into your software, with cost controls, safety and fallbacks.
Add AI to Your Website
Add AI features that help visitors buy and book (smart search, product finders, quote assistants and chat), trained on your content and connected to your systems.
Custom AI Agent Development
AI agents that do multi-step work (research, data entry, follow-ups, scheduling, reporting) inside your systems, with clear permissions and human approval.
Related software
Questions about large language model APIs
What is a large language model API?
Cloud services that give software access to large language models for writing, reasoning, coding, vision and tool use, paid per use.
How is AI changing large language model APIs?
Model quality keeps rising while prices fall, so features that were too expensive last year are affordable now; choosing the right model for each task matters more than choosing one vendor.
Should we buy a large language model API or have it built?
We integrate the right model for each job, with caching, fallbacks and cost controls, and keep you able to switch providers.
Need a large language model API set up, connected or built?
Tell us what you use today and what you need it to do. We will tell you honestly whether to buy, build or connect, with a fixed quote.
- Big projects and small ones are all welcome
- Fixed-price quotes, no surprise invoices
- You own your code, data and accounts
- A client portal to track progress, invoices and payments
- Rooted in Wisconsin, serving businesses nationwide