> **For coding agents and LLMs:** This is one Social Fetch marketing page (markdown export). For API orientation start with [`/llms.txt`](https://www.socialfetch.dev/llms.txt); for auth and crawl rules use [`/agents.txt`](https://www.socialfetch.dev/agents.txt); for every operation use [`/llms-endpoints.txt`](https://www.socialfetch.dev/llms-endpoints.txt). ## This page - **On-site (HTML):** - **Markdown (.mdx) URL:** --- # Which Wikipedia editions can I read? Any edition with a code such as en, de, ja, zh or zh-hant. Pass it as lang. The default is en. Titles are read on the edition you choose, so a title that exists on one edition can be not_found on another. Source: [Wikipedia data API](https://www.socialfetch.dev/platforms/wikipedia) ## Related questions - [How much does the Wikipedia API cost?](https://www.socialfetch.dev/answers/how-much-does-the-wikipedia-api-cost)