Tag taxonomy
The vocabulary every other endpoint filters by — projects, chains, categories and people, with keyword rules and parent relationships.
Two-thirds carry a parent, giving the taxonomy real hierarchy rather than a flat list. Each tag matches content through its keywords, which is the mechanism — and the failure mode, below.
What's in a record
Every field the corpus returns for one record. Real shape — walked corpus-wide, not sampled.
- id
- name
- slug
- keywords
- parents
Get it
A curl that runs against the live API right now, plus the MCP tool names for the same data.
MCP tools
get_tagsget_tags_detailWhat it's for
Three concrete questions this capability answers that a general crypto API does not.
- Resolving a user's input to something the API accepts: every
?tags=filter on every other endpoint takes a slug from here, so autocomplete against this beats guessing. - Understanding why a query matched:
keywordscarries the actual rule —match_type,case_sensitive,required_terms,is_excluded— so a surprising result is explainable rather than mysterious. - Walking a hierarchy: 11,781 of 17,582 tags carry
parents, so a chain rolls up its protocols and a category rolls up its projects without a mapping table of your own.
Known limits
Required, not optional. Coverage gaps, staleness and parameter traps that were observed by running the curl above against the live server on 2026-09-18.
914 tags have no keywords, and match nothing.
Walked all 17,582 tags on 20 Sep 2026: 914 (5.2%) carry an empty keywords array. A tag matches content only through its keywords, so these return zero results on every endpoint — not because the project has no coverage, but because nothing connects the tag to it. Check a tag returns results before building a scheduled job on it.
516 names are shared by more than one tag.
1,033 tags collide on 516 lowercased names. When a name is duplicated, one of the pair is often the keyword-less one — so picking a tag by name rather than slug can silently select the version that matches nothing.
Most tags carry one or two keywords.
The distribution over the full corpus: 9,297 tags have exactly one keyword, 6,982 have two, 381 have three or more. A single-keyword tag is as narrow as that one term, which is why an obvious project name can still under-match.
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