What is API?API kya hai?

🧸 Think of it likeAise samjho

Like a waiter in a restaurant: you don't go into the kitchen, you tell the waiter what you want and the waiter brings it back.Restaurant ke waiter jaisa: aap kitchen mein nahi jaate, waiter ko batate ho kya chahiye aur woh le aata hai.

📘 ExplainedVistaar se

An API defines what you can request and what you get back, usually as JSON over HTTP. LLM providers offer APIs: you send a model name and messages, and receive the generated text and token counts. In AI products you both call APIs (LLMs, databases) and expose your own (for example a /predict endpoint for your model).API tay karta hai aap kya maang sakte ho aur badle mein kya milega, aam taur pe HTTP pe JSON. LLM providers APIs dete hain: aap model ka naam aur messages bhejte ho, aur generated text aur token counts milte hain. AI products mein aap APIs call bhi karte ho (LLMs, databases) aur apni bhi dete ho (jaise model ke liye /predict endpoint).

💡 Real exampleAsli example

A weather app calls a weather API to get today's forecast.Weather app aaj ka forecast lene ke liye weather API call karta hai.

📖 Learn it step by stepStep by step seekho

• Calling an LLM API: keys, requests and costsLLM API call karna: keys, requests aur costs
• Serving a model as an API with FastAPIModel ko FastAPI se API ke roop mein serve karna

🔗 Related termsJude hue shabd

• InferenceUsing a trained model to make predictions on new data.Trained model se naye data pe predictions karna.
• LatencyHow long a request takes from asking to getting the answer.Request bhejne se jawaab milne tak kitna time lagta hai.