The API Value Proposition Canvas defines how an API delivers value by linking user tasks and challenges to API features.

Visualize, iterate, and optimize the target state customer journey while identifying gains and pains.

How feasible and reusable will this API be? Use API Business Model canvas to evaluate the business case from a cost-benefit perspective

The Business Impact Canvas helps to identify and mitigate risks related to API availability, security, and functionality to support informed architectural decisions.

Map the regulatory, compliance, and network locations of API providers and consumers to ensure accessibility and compliance.

The Capacity Canvas aligns business transaction patterns, future consumption trends, and technical solutions to ensure API scalability and performance.It provides critical input for scaling decisions and infrastructure planning.

Define core entities, their attributes, and relationships to create a shared conceptual understanding across APIs.

How should endpoints i.e. the resources that our API allows the API consumers to use, be named? What features and thus endpoints should be included in the same API? To version or not and how?

Use this checklist to audit your API prototype or a ready made API before publishing it to stakeholders, or, why not before buying an API

Plan and design API interactions, focusing on workflows, inputs, outputs, and potential exceptions.