# Protein Index

> Source-aware catalog of Indian food products. Separates verified label
> evidence from broader discovery data. Does not claim complete coverage of
> the Indian market.

The human UI is a React SPA. Agents should use the API and markdown surfaces
below — do not scrape the empty client shell.

## When to use this

- Looking up Indian food products by GTIN, brand, or protein content with source-aware evidence
- Comparing protein foods with verified label evidence separated from discovery-only data
- Querying product nutrition, ingredients, offers, and ratings with explicit confidence levels
- Checking catalog coverage and evidence completion status for the Indian protein product market
- Accessing product detail as JSON or markdown for agent consumption

## Product

- [Catalog UI](https://protein.significanthobbies.com/): Human browse / compare experience (SPA)
- [This index](https://protein.significanthobbies.com/llms.txt): Agent entrypoint
- [Agent catalog](https://protein.significanthobbies.com/api/ai): Machine-readable surface list
- [OpenAPI spec](https://protein.significanthobbies.com/openapi.json): Machine-readable API contract
- [Homepage markdown](https://protein.significanthobbies.com/index.md): Product brief without JS

## API (JSON)

- [Health](https://protein.significanthobbies.com/api/health): Product count and publication status
- [Coverage](https://protein.significanthobbies.com/api/coverage): Completion / evidence coverage
- [Search products](https://protein.significanthobbies.com/api/products): Query catalog (`q`, filters)
- [Product detail](https://protein.significanthobbies.com/api/products/:id): One canonical product
- [Product markdown](https://protein.significanthobbies.com/api/products/:id.md): Same product as markdown

## Optional

- [Foundry](https://sassmaker.com): Parent fleet showcase
- [GitHub](https://github.com/Significant-Hobbies/protein-index): Source