docs: rename api-reference.md back to api.md since redirect stopped working (#13056)

docs/api/introduction.mdx

@@ -0,0 +1,47 @@
+---
+title: Introduction
+---
+
+Ollama's API allows you to run and interact with models programatically.
+
+## Get started
+
+If you're just getting started, follow the [quickstart](/quickstart) documentation to get up and running with Ollama's API.
+
+## Base URL
+
+After installation, Ollama's API is served by default at:
+
+```
+http://localhost:11434/api
+```
+
+For running cloud models on **ollama.com**, the same API is available with the following base URL:
+
+```
+https://ollama.com/api
+```
+
+## Example request
+
+Once Ollama is running, its API is automatically available and can be accessed via `curl`:
+
+```shell
+curl http://localhost:11434/api/generate -d '{
+  "model": "gemma3",
+  "prompt": "Why is the sky blue?"
+}'
+```
+
+## Libraries
+
+Ollama has official libraries for Python and JavaScript:
+
+- [Python](https://github.com/ollama/ollama-python)
+- [JavaScript](https://github.com/ollama/ollama-js)
+
+Several community-maintained libraries are available for Ollama. For a full list, see the [Ollama GitHub repository](https://github.com/ollama/ollama?tab=readme-ov-file#libraries-1).
+
+## Versioning
+
+Ollama's API isn't strictly versioned, but the API is expected to be stable and backwards compatible. Deprecations are rare and will be announced in the [release notes](https://github.com/ollama/ollama/releases).