Online service for doing textual analysis of documents (sent to and online). Realtime analysis. Offers SDKs, so the REST API is probably in there somewhere. Sentiment analysis (general and domain-specific). Classification and categorization. Entity and concept detection and extraction. Hashtag suggestion.
3 hits/second
1000 hits/day for free
By looking around in here you can tell what the API rails are and how to use them:
https://github.com/AYLIEN/aylien_textapi_python/blob/master/aylienapiclient/textapi.py#L84
extract, classify, concepts, entities, hashtags, language, related, sentiment, summarize, microformats, image-tags, classify/unsupervised (picks the most semantically relevant class label or tag), combined (runs multiple analysis operations in one API call).
headers = {
'Accept': 'application/json',
'Content-type': 'application/x-www-form-urlencoded',
'X-AYLIEN-TextAPI-Application-ID': application ID,
'X-AYLIEN-TextAPI-Application-Key': application key,
'User-Agent': "Aylien Text API Python " + aylienapiclient.__version__ (0.6.0 as of right now)
}An open source semantic network (Creative Commons license) for AI and ML development. Semantic nets encode the meaning of words and concepts for information processing systems. Seems to encompass several spoken languages. Curated to avoid stereotypes. Still an active project. Data elements have a concept of external URLs, which link to other data sources with machine-parseable data related to that element.
The top 40 key concepts of computer science, written for people who aren't hardcore comp.sci students.