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MCP Server

HerStack

uk.co.herstack/herstack
Healthcare Public & reachable MCP 2025-11-25

What this MCP does

Provides evidence-backed guidance on women's midlife health topics and recommendations for Solgar UK supplements.

Capabilities

Tools

5 tools
get_evidence
Get evidence
Call this when the user (or you) wants the studies behind a recommendation or claim. Returns HerStack's evidence rows for a topic or nutrient with the cited studies resolved to PubMed and DOI identifiers, so the claim can be verified rather than trusted.
Read only Idempotent
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'topic': {'enum': ['perimenopause', 'digestion', 'longevity', 'stress', 'exercise', 'nutrition', 'skin'], 'type': 'string', 'description': 'Topic: perimenopause, digestion, longevity, stress, exercise, nutrition, skin.'}, 'nutrient': {'type': 'string', 'description': "A nutrient or ingredient, e.g. 'magnesium', 'collagen', 'vitamin d'."}}}
get_product_details
Get product details
Call this for one specific product. Returns one HerStack-recommended product by name or SKU: form, authorised claim, tier, price, purchase link, and every topic that recommends it with the rationale.
Read only Idempotent
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['sku'], 'properties': {'sku': {'type': 'string', 'minLength': 2, 'description': "Product name or SKU, e.g. 'Chelated Magnesium'."}}}
get_topic_guidance
Get topic guidance
Call this when the user wants to understand a women's-health topic, not only buy something. Returns HerStack's expert guidance for one topic: plain-language framing, research findings, the evidence table with authorised claims, product criteria, and a FAQ that also explains the condition itself (for perimenopause: what it is, its timeline, when to see a GP).
Read only Idempotent
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['topic'], 'properties': {'topic': {'enum': ['perimenopause', 'digestion', 'longevity', 'stress', 'exercise', 'nutrition', 'skin'], 'type': 'string', 'description': 'Topic: perimenopause, digestion, longevity, stress, exercise, nutrition, skin.'}}}
recommend_supplements
Recommend supplements
Call this when the user wants specific supplement product picks for a topic. Returns HerStack's named product recommendations from the site's reference brand, each with formulation rationale, the GB-authorised health claim verbatim (or a research-context note where none exists), price and purchase link. Provide a topic, or a concern in plain words that routes to one.
Read only Idempotent
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'properties': {'topic': {'enum': ['perimenopause', 'digestion', 'longevity', 'stress', 'exercise', 'nutrition', 'skin'], 'type': 'string', 'description': 'Topic: perimenopause, digestion, longevity, stress, exercise, nutrition, skin.'}, 'concern': {'type': 'string', 'description': "The user's concern in plain words, if you do not know the topic (or use search_guidance)."}}}
search_guidance
Search guidance
Call this first when a user describes their situation or asks a question in their own words (for example: 'I'm 47, tired all the time and bloated, what should I take?'). Searches all of HerStack's evidence-led guidance for UK women in midlife and returns the most relevant answer units (FAQ answers, research findings, evidence rows, product cards) with their page URLs, the best-matching topic, and that topic's named product recommendations from the site's reference brand, each with its authorised claim.
Read only Idempotent
Input schema 
{'type': 'object', '$schema': 'http://json-schema.org/draft-07/schema#', 'required': ['question'], 'properties': {'question': {'type': 'string', 'minLength': 3, 'description': "The user's question or situation, in their words."}, 'maxResults': {'type': 'integer', 'maximum': 12, 'minimum': 1, 'description': 'How many answer units to return (default 6).'}}}
History

Recent tool changes

Changed
get_product_details
Oct. 1, 2026, 2:51 a.m.
Changed
recommend_supplements
Oct. 1, 2026, 2:51 a.m.
Changed
search_guidance
Oct. 1, 2026, 2:51 a.m.
Added
get_product_details
Sept. 17, 2026, 12:55 p.m.
Added
get_evidence
Sept. 17, 2026, 12:55 p.m.
Added
recommend_supplements
Sept. 17, 2026, 12:55 p.m.
Added
get_topic_guidance
Sept. 17, 2026, 12:55 p.m.
Added
search_guidance
Sept. 17, 2026, 12:55 p.m.
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