Glossary · Core Concepts

API-First Design

An approach that starts from existing APIs and defines reusable capabilities on top, so API investments power new AI and app experiences.

What is API-First Design?

API-first design is an approach to building capabilities that starts from existing API investments. Rather than designing from scratch, teams begin with consumed API declarations – base URI, authentication, resources, operations – and incrementally add exposed API and MCP adapters on top.

API-first design in Naftiko

Naftiko supports API-first design through:

  • Consumed API declarations – Start by declaring existing APIs with their contracts.
  • Incremental adapter addition – Add REST, MCP, and Agent Skills adapters progressively.
  • External references – Reuse existing security and configuration with file and runtime resolution.
  • Format-aware parsing – Normalize JSON, YAML, XML, CSV, Avro, and Protobuf from diverse backends.

Why it matters

Most enterprises have significant API investments. API-first design protects those investments by building on top of what exists rather than replacing it. Existing APIs become the foundation for new AI and application experiences without requiring a rip-and-replace effort.

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