Welcome to the RAE API Organization. Here you'll find tools for interacting with the Spanish language programmatically. The Real Academia Española (RAE) hasn't shown interest in providing a public API for its dictionary, so we built our own.
This is a non-profit project with educational and collaborative goals. We don't claim ownership over RAE's content. By using this API, you're responsible for how you use its resources.
- rae-api.com — Unofficial API for the RAE dictionary: definitions, conjugations, reverse search, word of the day, locutions and polysemic words.
- go-rae — Go client.
- rae-tui — Terminal interface.
- rae-raycast — Raycast extension.
- rae-mcp — LLM integration via Model Context Protocol.
Due to continuous attacks (DDoS, abusive scraping) affecting service quality, we've implemented rate limiting. API keys are free — this isn't monetization, it's abuse protection.
| Tier | Requests/min | Requests/day | How to get it |
|---|---|---|---|
| Free | 10 | 100 | No API key (anonymous) |
| Developer | 60 | 5,000 | Self-service (free) |
| Extended | 300 | 50,000 | Contact us |
curl "https://rae-api.com/api/words/hola?api_key=YOUR_API_KEY"
# or via header
curl -H "X-API-Key: YOUR_API_KEY" "https://rae-api.com/api/words/hola"- Fuzzy search for partial matches
- Inverse indexing for definition-based search
- Improved parsing for RAE's HTML changes
Is this official?
No. We have no affiliation with the RAE.
Can I use this for my project?
Yes, it's free to use. Donations welcome: Ko-Fi.
What if the RAE changes their website?
The API uses scraping. If the structure changes, some features might be temporarily interrupted. We store data locally to ensure continuity.
If you find it useful, consider buying us a coffee at Ko-Fi or sharing rae-api.com.
Thanks to those who support this project:
