Dear Hiring Manager,
Good to have you!
I've reviewed your job post regarding the API, feeling excited to start communication with you.
Kindly share the URL of your website then after quick analysis we can discuss on the project and budget in detail.
I can assure you that I will work according to the requirements, because I have worked with many API's like Web service APIs, SOAP (Simple Object Access Protocol), REST (Representational state transfer), etc. APIs: Google MAP/Cloud/Image APIs, Amazon S3, Yahoo, Facebook, Twitter, Flickr.
Looking forward for your response and hoping for building a long-term beneficially relationship with you. If you have any questions or queries then I am always be in touch.
Regards
Sudhanshu