# True Fit

**Canonical:** https://apis.io/providers/true-fit/  
**Website:** https://www.truefit.com/  
**APIs profiled:** 22

True Fit Corporation is an AI-powered fit and sizing intelligence platform for apparel and footwear ecommerce. Its Fashion Genome dataset is built on roughly two decades of real purchase-and-return outcomes across 100M+ registered shoppers, 60M unique products and 91K+ brands, and powers size recommendations, fit confidence scores, cross-brand size calibration and shopper fit profiles. True Fit ships as a product-detail-page JavaScript widget, a Shopify app, native iOS/Android/React Native SDKs, a documented Partner REST API and Consumer REST API, a 360 Member View data API, and a Fit Intelligence Layer exposed to AI agents over the Model Context Protocol.

## Kin Score — 45.3 / 100 (developing)

Scored 2026-08-12 under rubric 0.11.0. Trend: flat (+0.0 from 45.3).

| Facet | Score |
|---|---|
| Discoverability | 81.5 |
| Contract Quality | 48.5 |
| Governance | 11.5 |
| Operational Transparency | 31.6 |
| Developer Ergonomics | 69.0 |
| Commercial Clarity | 28.9 |

## Agent readiness — 44.4 (agent-ready)

| Dimension | Value |
|---|---|
| Spec Presence | yes |
| Agentic Access | derived |
| MCP Server | derived |
| Auth Clarity | yes |
| Idempotency | no |
| Error Semantics | verified |
| OpenAPI Examples | partial |
| Rate Limit Signal | no |
| Event Surface Described | no |
| Agent Skills | derived |
| Well Known Catalog | no |
| Consent Identity | yes |
| Agent Card | no |
| Dry Run Mode | no |

## APIs (22)

- **True Fit 360 Member View API** — Two-endpoint data API that packages True Fit machine-learning assets for a retailer partner: a Metadata endpoint returning the descriptor of the current weekly 360 Member View f...
- **True Fit Analytics API** — Provide session information for more advanced reporting.
- **True Fit Auth API** — Endpoints to allow saving and logging in to a True Fit account.
- **True Fit Bra Sizes API** — The bra sizes that are available to choose from for the bra size measurement on a Women's profile.
- **True Fit Brands API** — The brands that are available to choose from when entering a reference closet item.
- **True Fit Checkout API** — An endpoint for tracking checkout events.
- **True Fit Closet API** — Information about the profile's closet.
- **True Fit Discovery Recommendation API** — Retrieve True Fit powered product recommendations for the shopper profile.
- **True Fit Fit Recommendation API** — Retrieve True Fit powered size recommendations for a profile.
- **True Fit Identity API** — Establishing a True Fit user for one of your users.
- **True Fit Inseams API** — The available inseam lengths to choose from for the inseam measurement on a profile.
- **True Fit Measurements API** — Body measurements attached to a profile.
- **True Fit Normalized Sizes API** — Retrieve normalized sizes for the shopper profile.
- **True Fit Product Ratings API** — An endpoint for rating discovery recommendations.
- **True Fit Products API** — The products available at a store.
- **True Fit Profile API** — Information about the person being shopped for.
- **True Fit Profiles API** — Creating and managing fit profiles belonging to a partner user.
- **True Fit Recommendations API** — Size recommendations and general fit guidance for retailer products.
- **True Fit Sizes API** — The sizes that are available to choose from when entering a reference closet item.
- **True Fit Sleeve Lengths API** — The available sleeve lengths to choose from for the sleeve length measurement on a profile.
- **True Fit Style Attributes API** — The style attributes available for particular ageGroup, gender, category and optional class combination.
- **True Fit Token API** — A token is used to identify requests from a device and associate the requests with a session. As the user interacts with True Fit, the token will update. The most recent token r...

## MCP servers (1)

- **true-fit-mcp.yml**

## Agentic access (1)

- **True Fit Agentic Access** — 58 operations · 27 acting · 2 human-in-the-loop

## Security (2)

- **True Fit Authentication** — http · 1 scheme
- **True Fit Domain Security** — TLSv1.3 · HSTS · DMARC

## Tags

Company, Fit and Sizing, Apparel, Footwear, Retail, E-Commerce, Recommendations, Personalization, Artificial Intelligence, Agentic Commerce, Model Context Protocol

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Profiled by [API Evangelist](https://apievangelist.com) and published on [APIs.io](https://apis.io/providers/true-fit/). Scores are computed from the provider's own public artifacts under a published rubric.