Bold Metrics

API for AI shopping agents to deliver personalized clothing size recommendations based on body data, no measuring tape required.

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boldmetrics.com

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Quick facts
What is it	API for AI shopping agents to deliver personalized clothing size recommendations based on body data, no measuring tape required.
Pricing	Paid
Platform	Web Application
API	Yes
Best for	reducing fit-related returns in online clothing stores, providing accurate size recommendations to online shoppers
Domain registered	2012

Data updated Sept. 19, 2026

What does Bold Metrics do?

Agentic Sizing Protocol (ASP) is a solution from Bold Metrics that lets AI shopping agents give shoppers accurate clothing size recommendations. Instead of asking customers to measure themselves or guess between S, M, L, the protocol uses a short set of simple questions to build a digital twin of the shopper's body. That digital twin then gets matched to the specific garment's fit model, so the AI agent can recommend the right size on the spot. It's designed to plug into any AI agent, chatbot, or commerce platform, making it a backend service for automated sizing.

The system works by combining over a decade of AI-driven fit modeling with a lightweight questionnaire that anyone can answer — no tape measure needed. ASP is agent-agnostic, meaning it can work with any AI shopping agent, whether that's a custom bot, a third-party assistant, or a retailer's own tool. It also provides measurable impact data, like conversion lift and return rate reduction, so brands can see the results. The protocol generates a digital twin from the shopper's answers, then uses that to predict fit across different products and brands.

This tool is built for e-commerce brands, especially apparel retailers who want to reduce returns and improve customer satisfaction. It's also useful for AI agent developers who need a reliable sizing API to integrate into their shopping assistants. Real-world use cases include powering a chatbot that helps a customer find the right size jeans, or an AI agent that automatically selects the correct size when a shopper says "I want a medium in this shirt."

Sales & CRM — Other

Key features

What makes it stand out

Generates a digital twin from simple questions, no measuring tape needed

Works with any AI shopping agent, chatbot, or platform (agent-agnostic)

Provides measurable impact data like conversion lift and return rate reduction

Integrates easily into e-commerce workflows via API or direct integration

Who is Bold Metrics for?

Who benefits most from this tool

reducing fit-related returns in online clothing stores

providing accurate size recommendations to online shoppers

integrating AI-powered sizing into AI shopping agents

Trust & presence

Domain Domain registered 2012

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