# Natur Species Taxonomy Lookup

> Natur Species Taxonomy Lookup is a paid API for AI agents from natur.halowerk.com, paid per call via x402, $0.004/call, status unknown (last checked 2026-09-14).

Resolves a scientific or vernacular species name to its accepted taxon, returning full classification hierarchy, taxonomic authority, GBIF key, linked identifiers, and synonym/accepted-name status.

## Facts

- Endpoint: POST https://natur.halowerk.com/v1/species-taxonomy
- Price: $0.004/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/natur-species-taxonomy-lookup-24628bbb
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_ZmsI1TQvUVW5Ial9lX5bB

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability natur-species-taxonomy-lookup-24628bbb -d '<json body>'
```

Example prompt: What is the full taxonomic classification for 'Bellis perennis' — is it the accepted name or a synonym, and what is its GBIF key?

## When to prefer this

Use this endpoint when you need authoritative taxonomic resolution backed by the GBIF backbone, especially when you need to distinguish accepted names from synonyms, obtain GBIF keys for downstream biodiversity data queries, or enrich species records with complete Linnaean classification. Prefer this over generic search APIs when synonym resolution and taxonomic authority attribution are required.

## Known failure modes

- Name not found in GBIF backbone — no match returned
- Ambiguous name matching multiple taxa — may return best match or error
- Vernacular name not recognized — no mapping to scientific name
- Homonyms across kingdoms — may return unexpected taxon
- Network timeout or service unavailability

## How this service works

Takes a scientific or vernacular name and returns the accepted taxon it belongs to, with the complete classification from kingdom down to species, the taxonomic authority, the GBIF key and any linked identifiers. The distinction the response keeps is the one that matters for anything downstream: whether the name you supplied is the accepted name or a synonym, and if it is a synonym, what the accepted name is.

## Output

Returns the accepted taxon corresponding to the submitted name, including: full hierarchical classification (kingdom → species), the taxonomic authority string, the GBIF taxon key, any linked external identifiers, and a clear flag indicating whether the submitted name is the accepted name or a synonym — and if a synonym, the accepted name it maps to.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "name": {
   "type": "string",
   "maxLength": 200,
   "minLength": 2,
   "description": "Scientific name, e.g. Bufo bufo, or a vernacular name."
  },
  "strict": {
   "type": "boolean",
   "default": false,
   "description": "Only accept high-confidence matches; otherwise a low-confidence match is returned but marked."
  },
  "kingdom": {
   "type": "string",
   "maxLength": 40,
   "description": "Narrows the match when a name exists in more than one kingdom, which happens more often than expected."
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/natur-species-taxonomy-lookup-24628bbb/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from natur.halowerk.com](https://www.zero.xyz/host/natur.halowerk.com/llms.txt)