I'm developing a website for a small used car dealership with a need for VIN decoding. Given as much, I'm looking for maybe 1,000 - 1,500 requests for VINs per year. Does anyone have experience with a price-efficient web service to deliver such data?
Web services are of two kinds: Simple Object Access Protocol (SOAP) and Representational State Transfer (REST). SOAP defines a standard communication protocol (set of rules) specification for XML-based message exchange. SOAP uses different transport protocols, such as HTTP and SMTP.
A general rule of thumb when you're deciding between SOAP and REST for building your API: if you want standardization and enhanced security, use SOAP. If you want flexibility and efficiency, use REST.
REST is a set of guidelines that offers flexible implementation, whereas SOAP is a protocol with specific requirements like XML messaging. REST APIs are lightweight, making them ideal for newer contexts like the Internet of Things (IoT), mobile application development, and serverless computing.
REST APIs access a resource for data (a URI); SOAP APIs perform an operation. REST is an architecture that's more data-driven, while SOAP is a standardized protocol for transferring structured information that's more function-driven.
A couple other options are available as well.
try ask at Vin-info.com - there is vin decoder and I've heard, that they are preparing API
DataOne Software (the company I work for) has a REST web service for decoding VINs. Our data covers model years 1981-present. For the volume you're talking about pricing would be very inexpensive, and we offer a free trial.
http://www.dataonesoftware.com/web-services-vin-decoder-api
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