List Taxonomic Sources
Endpoints
Taxonomic Sources
Returns metadata about all 12 taxonomic data sources used by the species validation system, including authority weights and cache durations. No authentication required.
GET
List Taxonomic Sources
List all available taxonomic data sources used by the species validation system, including their authority weights and cache durations.
No authentication or request body required.
Overview
This endpoint returns metadata about the 12 taxonomic sources used by the/v1/verify/plant-names endpoint. Use it to understand which databases are queried, their relative authority in the consensus algorithm, and how long results are cached.
Request
Response
Array of source metadata objects.
Total number of available sources.
Example Response
Source Authority Weights
Sources are ranked by authority in the consensus algorithm:| Source | Weight | Role |
|---|---|---|
| TNRS (WFO) | 1.00 | Taxonomic authority |
| POWO (Kew) | 0.95 | Botanical authority |
| GBIF | 0.85 | Biodiversity database |
| ALA | 0.80 | Regional authority (AU) |
| IP Australia | 0.75 | Cultivar authority |
| UPOV | 0.75 | Variety authority |
| iNaturalist | 0.70 | Observations |
| Wikidata | 0.65 | Structured data |
| WikiSpecies | 0.60 | Species directory |
| EOL | 0.60 | Encyclopedia |
| Wikipedia | 0.55 | General reference |
| Gemini AI | 0.50 | AI fallback (only) |
Cache Strategy
Each source has a cache TTL tuned to its update frequency:- 24 hours: GBIF (observation data updates frequently)
- 48 hours: iNaturalist (observation counts change regularly)
- 72 hours: POWO, ALA, EOL (taxonomy relatively stable)
- 7 days: IP Australia, UPOV, WikiSpecies, Wikidata, Wikipedia (data changes infrequently)
- 10 days: Gemini AI (AI-generated data, stable period)
- 30 days: TNRS/WFO (authoritative taxonomy, changes rarely)

