search_lexicons

com.atproto-mcp/taproot · Verify this server

Browse or search the registry of published AT Protocol lexicon schemas. The response's `total` field is the exact registry size and `matched` is the exact match count. Substring matches the NSID or description (query 'profile' → anything containing 'profile'); prefix the query with a DOT for a suffix match (query '.profile' → only NSIDs ENDING in .profile, i.e. profile record types). Filter by schema kind with `type` — 'give me every space lexicon' is type='space' with NO query, since an NSID does not imply its type (space.saebyeok.permissionSet is a permission set; app.kimbia.circle is a space). Types: the spec's primary types are record, query, procedure, subscription, and permission-set; a main def may also be a non-primary type (object, token, string); space comes from proposal 0016 (permissioned data), which is not in the ratified spec; defs-only marks a schema file with no main definition. Every response carries a `typeCounts` breakdown of the returned matches (it sums to `matched`), so one call with no arguments shows which kinds exist and how many; when you filter by type, `otherTypes` reports what the filter excluded, so a too-narrow or misspelled type still shows you the real options. Without a query or type, returns the total plus a sample. Results are paginated by `limit`; to see matches beyond the first page, call again with the `offset` printed at the end of the list. Use resolve_lexicon for a specific schema's full definition.