JSON API : A specification for building APIs in JSON. Clients built around JSON API are able to take advantage of its features around efficiently caching respons...
npoint.io : JSON storage bins with schema validation
HTTP API design : This guide describes a set of HTTP+JSON API design practices, originally extracted from work on the Heroku Platform API.
API Security Checklist : Checklist of the most important security countermeasures when designing, testing, and releasing your API.
Matrix : Matrix is an open standard for decentralised communication, providing simple HTTP APIs and open source reference implementations for securely distribu...
JSON Schema is a vocabulary that allows you to annotate and validate JSON documents.