Discover span attribute keys for a project.
Cursor mode walks retained project data newest-first in bounded pages; exact q lookup remains available for direct key discovery. discovery_mode=eval_mapping includes JSON-only keys that eval mapping can resolve but attribute filters cannot query. The default filter mode retains the narrower filterable-key contract. The no-page-size form is retained for older clients.
GET /api/traces/span-attribute-keys/?project_id=<uuid>&page_size=10
Request
- Base URL: http://localhost:8000
- URL: http://localhost:8000/api/traces/span-attribute-keys/
- Auth: one of:
- API key in header X-Api-Key
- API key in header X-Secret-Key
Query parameters
Attribute contract to browse. filter returns only keys supported by attribute filters; eval_mapping also returns JSON-only keys that an evaluation mapping can resolve.
Nonempty exact attribute key, at most 4096 UTF-8 bytes. Whitespace, controls and case are preserved.
Response
OK
Changes
No recorded changes to this operation across all 1 revision of this API.