A
licenseA
qualityA
maintenanceProduct evaluation MCP server for US packaged food. Health scores, ingredient safety, regulatory flags, recall history, corporate ownership.
4
2
1
MIT
stierproducts tier lists
Server Details
S-to-F tier lists for 208 product categories. Every placement cited, with barcodes.
- Status
- Healthy
- Last Tested
- Transport
- Streamable HTTP
- URL
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Tool Definition Quality
Score is being calculated. Check back soon.
Available Tools
6 toolscompare_productsCompare productsRead-onlyInspect
Compare two to five products side by side. They must share a category: LP is points on one category ladder and comparing across boards is meaningless, so a mixed request is refused rather than answered misleadingly.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| slugs | Yes | Product slugs to compare. |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| note | Yes | |
| license | Yes | |
| category | Yes | |
| products | Yes | |
| source_url | Yes | |
| attribution | Yes | |
| monetization | Yes |
get_productGet one productRead-onlyInspect
Everything held on one product: its placement, verdict, pros and cons, GTIN barcodes, the announcement date where the maker published one, and a breakdown of how the cited sources read (how many were glowing, positive, neutral or negative, and whether they were outlets, named authors, video channels or forum owners). Then every citation in full, with a verbatim quote, who said it, and whether the link was fetched and confirmed. Use this when a claim needs backing up.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| slug | Yes | Product slug, e.g. "bambu-lab-x2d". | |
| citation_limit | No | How many citations to return, most notable first. The sentiment and speaker breakdowns always count every source regardless of this. | |
| citation_offset | No | Skip this many citations. Use it to page through the rest. |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| license | Yes | |
| product | Yes | |
| category | Yes | |
| citations | Yes | |
| sentiment | No | |
| source_url | Yes | |
| attribution | Yes | |
| speaker_mix | No | |
| monetization | Yes | |
| citations_shown | Yes | |
| citations_total | Yes | |
| citations_offset | Yes | |
| citations_remaining | Yes | |
| citations_confirmed_live | Yes |
get_tier_listGet a category tier listRead-onlyInspect
The full S-to-F tier list for one category: every ranked product with its tier, rank, LP, verdict, pros, cons, citation counts, GTIN barcodes and, where the maker published one, the announcement date. This is the primary tool and one call answers a "what is the best X" question completely. Call get_product for the quotes behind a placement.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| tier | No | Optional. Return only this tier. | |
| category | Yes | Category slug, e.g. "3d-printers". |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| method | Yes | |
| license | Yes | |
| summary | Yes | |
| category | Yes | |
| products | Yes | |
| source_url | Yes | |
| attribution | Yes | |
| monetization | Yes | |
| tier_meanings | Yes | |
| products_ranked | Yes |
list_categoriesList product categoriesRead-onlyInspect
List the product categories that have a published tier list, newest research first. Call this first when you do not already know the exact category slug: slugs cannot be guessed reliably and every other tool takes one.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| query | No | Optional filter matched against the category name and description. |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| count | Yes | |
| license | Yes | |
| categories | Yes | |
| source_url | Yes | |
| attribution | Yes | |
| monetization | Yes |
search_productsSearch ranked productsRead-onlyInspect
Find ranked products by name or brand across every board. Returns the slug, category and tier for each match, which is what get_product and get_tier_list need next.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| limit | No | ||
| query | Yes | Product or brand name, e.g. "Bambu Lab X2D". |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| query | Yes | |
| license | Yes | |
| matches | Yes | |
| products | Yes | |
| source_url | Yes | |
| attribution | Yes | |
| monetization | Yes |
what_to_avoidWhat to avoid in a categoryRead-onlyInspect
The products the research placed in the bottom tiers, and the ones it deliberately entered as traps buyers cross-shop but should not buy. Use it to answer "what should I not buy" and to check whether a product a user is considering was flagged.
ParametersJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| category | Yes | Category slug, e.g. "3d-printers". |
Output Schema
ParametersJSON Schema
| Name | Required | Description |
|---|---|---|
| license | Yes | |
| category | Yes | |
| products | Yes | |
| source_url | Yes | |
| attribution | Yes | |
| monetization | Yes | |
| flagged_count | Yes | |
| bottom_tier_count | Yes |
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