Financial Engineering is now a versatile word in the banking domain and more programmers are now very attracted to it as it has lot to offer to them. Due to these new API's the financial tasks and economic operations have now become a very trivial process than it used to be. The background of the book are not just one but many. To make apps from API are usually not very easy and also not so cost effective. Specially, in the financial sector it is really difficult to make apps to make easy transactions and manage finance in very controlled way. Though, there are some APIs but they are not so much cost effective. At this crisis hour of the financial sectors, a concept came to the author to do some research on how can an API can be free, cost effective and at the same time beneficial to make life easier in the financial sectors. So the author thought he could try and do some researches on some open source APIs likes of OpenMAMA and SMART API. Basically, Open MAMA is more preferred on this matter than the SMART API. And also that it is very compatible with any system and also the direct approach OpenMAMA is very attractive for any developer. Also, it really helps the system to be very cost effective is also a very important characteristics of OpenMAMA. On the other hand to work with something which is not tried out yet has also come into the author mind. As a result author has chosen SMART API which is mostly used in health and medical tasks to be in the author research list. And during the research author has found much relevant evidence that SMART API has the potential to be used in the financial sector if fallen into the right hands. These research really motivated author a lot to have a go in this analysis. The analysis also believe if we can really try then the cost of financial sectors and also money transactions process can be really kept under control by the help of these API's. The analysis has given a lot of examples and also give a financial model in these book so it can demonstrate how easy and cost friendly can these open source API's can be. Besides, it was also motivated to think what blessings it can bring to the financial engineering sectors. Also that the author friends and well wiser did help him with all the things needed to be done like helping him with new concepts, providing him with slides and lectures. They also gave the author some videos as well as some valuable suggestions regarding the book. So, that was the main reason behind writing this book. The expectation of the author of this book is given below: "In this book I have discussed about the financial engineering based on APIs system. I have also discussed about financial modeling, Detail information about OpenMAMA and SMART APIs etc. I have tried hard to proof the connections of this two APIs in the financial engineering and financial transaction modeling. Besides I have provided OpenMAMA and SMART APIs features, advantages, disadvantages, their usability and compatibility etc in the financial engineering task. The most important thing of the book is API based financial transaction modeling system development which I have design and discussed in the "3.0 Main body of the analysis" section. I have written this book in project based book writing process. I don't follow traditional technical book writing process. Because I think project based technical book writing process is helpful for article, report & research paper etc writing. And this process makes a book easy to understand to its reader. So by reading my book a reader can easily understand the topics of the book and he/she can easily gather the ideas about how to write academic, non-academic project report, research paper, article etc. I hope my book will be helpful for the future research about this API based financial engineering. So I can say that this book is beneficial for the long run development of API based financial engineering." Show less