API & Contracts for AI Systems

What This Repo Teaches

This repo explains how AI systems communicate using structured contracts:

• REST APIs (how systems talk)
• OpenAPI (how APIs are described)
• JSON Schema (how data is validated)
• Tool Contracts (how agents call tools)

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Why This Matters

Modern AI systems are NOT free-text systems.

They rely on:

• strict formats
• predictable structures
• validated inputs
• controlled outputs

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Simple Mental Model

User → API → Schema → System → Response
Where This Fits in AI Systems

This layer sits UNDER:

Agents (LangChain, Bedrock, etc.)
MCP / interoperability layers
Governance systems
Observability systems
What You Will Learn
How REST APIs work
How OpenAPI defines contracts
How JSON Schema validates data
How agents use tool contracts safely
Why contracts prevent AI failures
Final Outcome

You will be able to design:

safe APIs for AI systems
structured tool interfaces
enterprise-grade agent contracts