---
title: "Hello World API"
url: "https://developer.apiprimer.com/apis/hello-world-api/versions/9d197bd0-bdfd-4181-b431-80c0c52cef77"
---

# Hello World API

OpenAPI specification document.

```json
{"openapi":"3.1.0","info":{"title":"Hello World API","version":"1.0.0"},"servers":[{"url":"https://api.apiprimer.com"}],"paths":{"/hello":{"get":{"summary":"Returns a greeting","responses":{"200":{"description":"Successful response","content":{"text/plain":{"schema":{"type":"string","example":"Hello, world!"}}}}}}}}}
```