The request is for a Taxonomy API, which is an official product on eBay: its Taxonomy API exposes category trees, category suggestions and item aspects for a marketplace 3. For marketplace category mapping outside eBay, Market Category Booster offers a taxonomy API covering Amazon, eBay, Shopify and Google categories over REST and MCP 7. Since the request does not name a platform, a question is also asked.
A question back: Which platform or marketplace do you need the Taxonomy API for (for example eBay, Amazon, Shopify, or your own documentation site)?
- 1
eBay Taxonomy APIebay.comverified and signed
Provides eBay's category tree, category suggestions and item aspects for each category through its Taxonomy API, with a GA version now released 3.
official:API · Taxonomy API
for agents: getItemAspectsForCategory · getCategoryTree · getCategorySuggestions
- 2
Market Category Boostermarket-category-booster.comverified and signed
Maps a free-text product description onto the live category taxonomy of Amazon, eBay, Shopify or Google, reachable over REST and MCP 7.
official:MCP server · Market Category Booster
for agents: List supported marketplaces · Categorize a product into a marketplace taxonomy
- 3
ReadMe API Endpointsreadme.ioverified and signed
Exposes category and category-docs operations through ReadMe's API, which can be used to manage a documentation taxonomy 8.
official:API · API Endpoints+37 community tools built for it
for agents: getCategory · getCategoryDocs · getAPISpecification
Sources
- 3Electronics, Cars, Fashion, Collectibles & More | eBayebay.com · read 2026-10-29
- 7Market Category Booster — marketplace taxonomy, one level at a timemarket-category-booster.com · read 2026-10-29
- 8ReadMe · Developer-friendly API documentationreadme.com · read 2026-10-29
For agents: the 10 actions behind this answer
wp-rest-api · wp-rest-api verified and signed
Use when building, extending, or debugging WordPress REST API endpoints/routes: register_rest_route, WP_REST_Controller/controller classes, schema/argument validation, permission_callback/authentication, response shaping, register_rest_field/register_meta, or exposing CPTs/taxonomies via show_in_res
typespec-api-operations · typespec-api-operations verified and signed
Add GET, POST, PATCH, and DELETE operations to a TypeSpec API plugin with proper routing, parameters, and adaptive cards
getItemAspectsForCategory · Taxonomy API verified and signed
Note: The General Availability (GA) version of the Taxonomy API has been released. Developers currently using the Beta version should make plans to migrate to the new GA version, as the Beta version w
custom_api_call · Tavily (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
taxonomy · taxonomy verified and signed
Source of truth for event taxonomy generation, data auditing, and governance best practices in Amplitude. Use when an agent needs to create, validate, audit, score, or recommend improvements to event tracking plans, naming conventions, property standards, data quality, or deprecation workflows, incl
content_taxonomy · Gapup MCP — 270+ Agent-payable AI Tools verified and signed
Return the enrichment taxonomy of a content domain — every tag grouped by facet (genre, theme, mood, play-mode…). When to use this tool: an agent needs the controlled vocabulary to filter, classify or query content. Input: a domain.
List supported marketplaces · Market Category Booster verified and signed
Returns the marketplaces whose taxonomy is loaded, i.e. the accepted values of store_id. Free of charge: without it an agent would have to pay for a failed call to discover them. e.g. {"method": "SendMessage", "params": {"message": {"role": "ROLE_USER", "parts": [{"data": {"skill": "list-supported-s
getCategory · API Endpoints verified and signed
Get category
quizbase_subcategories · QuizBase verified and signed
Raw subcategory dump (LLM-organic kebab-case, Plan 55 middle taxonomy layer) with display label and count. USE WHEN: navigating between top-level category and individual tags, exploring topic structure. Filter questions via quizbase_random?subcategory=<slug>. INPUTS: q, cursor, limit (max 500).
custom_api_call · Exa (Activepieces) verified and signed
Custom API Call — Make a custom API call to a specific endpoint
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.