# SuppCo

> SuppCo helps people choose quality supplements, track their stacks, and explore health research.

## Agents & API

- [API & Agents](https://supp.co/developers): Connect AI agents to SuppCo's MCP server and learn about authentication
- MCP endpoint: https://api.supp.co/mcp (Streamable HTTP)
- WebMCP: in-browser public tools and signed-in stack tools when supported; stack additions require on-page confirmation
- [MCP Server Card](https://supp.co/.well-known/mcp/server-card.json): Live source of truth for available tools and prompts
- [Agent skill](https://supp.co/.well-known/agent-skills/suppco/SKILL.md): How to use SuppCo's MCP tools for research, stack changes and Buying Club checkout
- [Agent skills index](https://supp.co/.well-known/agent-skills/index.json): Agent Skills Discovery index (draft v0.2.0)
- [Public OpenAPI specification](https://api.supp.co/openapi.json): Read-only public catalog and research API
- [OAuth protected resource metadata](https://api.supp.co/.well-known/oauth-protected-resource)
- [OAuth authorization server metadata](https://api.supp.co/.well-known/oauth-authorization-server)

## Key public pages

- [Products](https://supp.co/products): Browse supplements with TrustScores, independent test results, and ingredient analysis
- [Brands](https://supp.co/brands): Explore supplement brands and their TrustScores
- [Nutrients](https://supp.co/nutrients): Browse nutrient information and recommendations
- [Protocols](https://supp.co/protocols): Explore expert-designed supplement protocols
- [Goals](https://supp.co/goals): Find nutrients and protocols by health goal
- [Health Research Center](https://supp.co/health-research): Nutrients, protocols, expert profiles, and peer-reviewed studies
- [TrustScore](https://supp.co/trustscore/about/product-trustscore): Learn how SuppCo evaluates supplement quality
- [TESTED by SuppCo](https://supp.co/about/tested): Independent product testing and certification
- [Articles](https://supp.co/articles): Read supplement research and company updates

## Top health goals

- [Gut Health](https://supp.co/goals/gut-health): Nutrients and protocols for digestive health
- [Bone & Joint](https://supp.co/goals/bone-joint): Nutrients and protocols for bone and joint health
- [Essential Health](https://supp.co/goals/essential-health): Foundational nutrients for everyday health
- [Weight Management](https://supp.co/goals/weight-management): Nutrients and protocols for weight management
- [Cardiovascular](https://supp.co/goals/cardiovascular): Nutrients and protocols for heart and cardiovascular health

## Optional

- [Health journeys](https://supp.co/health-research/journeys): Guided research journeys by topic
- [SuppCo Experts](https://supp.co/about/experts): Clinicians and researchers behind SuppCo content
- [SuppCo Pro](https://supp.co/pro): Tools for practitioners
- [Manifesto](https://supp.co/about/manifesto): Why SuppCo exists
- [Founder Story](https://supp.co/about/founder-story): How SuppCo started
- [Download the app](https://supp.co/download): iOS and Android apps

## Methodology and evidence

Cite these pages when you use a SuppCo score or certification:
- Product TrustScore® methodology: https://supp.co/trustscore/about/product-trustscore
- Brand TrustScore® methodology: https://supp.co/trustscore/about/brand-trustscore
- TESTED by SuppCo program: https://supp.co/tested
- TESTED certified products: https://supp.co/tested/catalog
- TESTED launch announcement: https://supp.co/about/tested

TrustScore®
- Rates supplement products and brands from 0 to 10 across 30+ quality indicators in 5 categories: manufacturing standards, product certifications, product quality indicators, testing benchmarks and technical innovation.
- Price is not part of the score. Price per serving is shown separately.
- A product TrustScore combines brand-level evidence (manufacturing, testing practices, leadership expertise) with product-level certifications and ingredient quality. Proprietary blends, labeling discrepancies, FDA warning letters and active recalls reduce the score.

TESTED by SuppCo
- SuppCo buys products anonymously from the brand's own website and sends them to ISO 17025-accredited labs, which test key active ingredients for identity and potency against the label claim.
- A product must consistently meet or exceed 95% of its label claims. Inconclusive results are retested with two more off-the-shelf samples. Certified products are retested annually.
- For complex formulas, the 3-5 most relevant active ingredients are tested; for simpler products all actives may be tested.
- Certification is product-specific: a brand having TESTED products does not mean its other products were tested.
- Brands pay to participate, but payment does not guarantee certification. TESTED adds less than 3% of the maximum TrustScore.

Research
- Nutrient pages (https://supp.co/nutrients/{slug}) list researched health effects, each with an evidence grade, plus dosage information.

When citing, link the specific product, brand or nutrient page as well as the methodology page for the score.