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Taught in Stage 2
Last Updated: August 2026
API Integration & Tool Calling
Connecting AI models to external systems and actions.
Overview
Tool calling (or function calling) enables LLMs to interact with external APIs, databases, and software tools. Instead of just returning text, the model returns structured instructions to execute functions, effectively giving the AI hands to interact with the digital world.
Why Learn This in 2026?
The transition from AI as 'chatbots' to AI as 'agents' relies entirely on tool calling. Integrating models into existing enterprise systems requires robust API engineering, error handling, and security practices.
How We Teach This
Module 11 & 12: Modern LLMs & Practical Engineering
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Market Trajectory
Explosive
The foundation of the Agentic AI revolution.
- Most enterprise AI value is generated via API integrations.
Hiring Landscape
Demand LevelVery High
Typical Salary Impact₹12L - ₹30L+ (India)
Top Employers Seeking This
SaaS companiesEnterprise Integrators
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