The following pages provide more information on how to access and use Salesforce APIs:
REST API – Access objects in your organization using REST.
SOAP API – Integrate your organization’s data with other applications using SOAP.
Tooling API – Build custom development tools for Force.com applications. Coming soon!
Chatter REST API – Access Chatter feeds and social data such as users, groups, followers, and files using REST.
Bulk API – Load or delete large numbers of records.
Metadata API – Manage customizations in your org and build tools that manage the metadata model (not the data, itself).
Streaming API – Provide a stream of data reflecting data changes in your organization.
Apex REST API – Build your own REST API in Apex. This API exposes Apex classes as RESTful Web services.
Apex SOAP API – Create custom SOAP Web services in Apex. This API exposes Apex classes as SOAP Web services.
Data.com API – Data.com provides 100% complete, high quality data, updated in real-time in the cloud, and with comprehensive coverage worldwide.