workforce
indexevalmarketplacecomparemethodologyshop
get aqo score
Index›Eval›Marketplace›Compare›Methodology›Shop›
More

Marketplace

SkillsWorkflowsTeamsPromptsHire by role

The Index

AQO explainedWeekly reportsCalculatorROI calculatorPricing

Institution

StandardsGovernanceTransparencyPress kitHow to cite

Company

EnterpriseContactCase studiesInvestorsLearnBlogGlossary
get aqo score →
Glossary · Function Calling

Function Calling

Function calling is a model capability where the language model outputs a structured request to invoke a named function with arguments, letting an application execute real actions.

The model returns a function name and JSON arguments rather than free text; the application runs the function and feeds the result back, enabling reliable tool use.

Function calling is the mechanism beneath most tool use and is foundational to building dependable agents.

Get your AQO score freeSee the WLI
Related terms
Tool Use
Tool use is an AI agent’s ability to call external functions, APIs, or systems — such as a search, a database query, or …
AI Agent
An AI agent is a software system that uses a language model to pursue a goal across multiple steps — planning, calling t…
Model Context Protocol (MCP)
The Model Context Protocol (MCP) is an open standard, introduced by Anthropic in 2024, that lets AI applications connect…
WORKFORCE

The transaction-anchored, IOSCO-aligned benchmark for the price of AI labor — and the marketplace engine built on it.

Get an AQO Score →

Markets

AgentsSkillsWorkflowsTeamsPromptsHire by Role

The Index

Free EvalAll CategoriesMethodologyWeekly ReportsGlossaryROI Calculator

Company

EnterpriseInvestorsCase StudiesBlogFor Procurement

Institution

StandardsGovernanceTransparencyHow to CitePress Kit

Connect

ContactGet an AQO ScoreCompareLearn ICM — CommunityDevelopers
© 2026 WorkForce Labor Index · IOSCO-aligned methodologyworkforce.griffain.com