Hello, ChemMeyer, and Welcome to Wikipedia! Thank you for your contributions to this free encyclopedia. If you decide that you need help, check out Getting Help below, ask me on my talk page, or place {{Help me}} on your talk page and ask your question there. Please remember to sign your name on talk pages by using four tildes (~~~~) or by clicking if shown; this will automatically produce your username and the date. Also, please do your best to always fill in the edit summary field with your edits. Below are some useful links to facilitate your involvement. Happy editing! Dirk BeetstraTC08:56, 25 March 2015 (UTC)[reply]
Sure, I just need a little bit of help from you. I have seen dumps of the data but I wonder if it is not possible to simply "ask" for all the Q11173 "chemical compound"s and then I find them in Cheméo based on InChI/SMILES/CAS. If you can provide me with the right place to learn about the API with maybe a simple example I can start from there. The first contact with Wikidata is hard! ChemMeyer (talk) 14:30, 25 March 2015 (UTC)[reply]
Hi ChemMeyer! Thanks for contributing to Wikipedia. Be our guest at the Teahouse! The Teahouse is a friendly space where new editors can ask questions about contributing to Wikipedia and get help from peers and experienced editors. I hope to see you there! Doctree (I'm a Teahouse host)