Learn · every claim sourced
Understand CPaaS, step by step
Plain-language guides, use cases and research from the community, with a source for every claim. New here? Begin with the five short reads below.
The library
What CPaaS actually is, and what it is not
The category is defined more clearly by what it replaced than by any vendor's feature list. A working definition, what it is often confused with, and three questions that separate a real platform from a reseller.
The five layers of a communications stack, and which one you are actually shopping for
Most evaluations compare transport — getting a message to a phone — which is the commodity layer. The four layers above it are where programmes succeed or fail, and where switching gets expensive.
When to build messaging infrastructure, and when not to
A layer-by-layer decision framework based on what actually breaks in production and who is accountable for it, rather than on a feature comparison.
Federating systems without merging them
When several products serve genuinely different audiences, consolidation can destroy what made each one good. Published contracts can do the same job with less loss, at a real operational cost.
The gap nobody fills: service-to-service identity
Messaging platforms issue credentials to people and to applications. Few can express 'system A is acting on behalf of customer B, with these permissions, until this moment'.
Evaluating a CPaaS contract: the clauses that decide what you actually bought
Unit price is one of the least consequential numbers in the agreement. Nine provisions that matter more, and what a good answer to each looks like.