# Syntalic Taxonomy Reference Lookup

> Syntalic Taxonomy Reference Lookup is a paid API for AI agents from api.syntalic.com, paid per call via x402, $0.01/call, status unknown (last checked 2026-09-15).

Resolves up to 100 taxonomy IDs to their full reference metadata (names, hierarchy, category paths) in a single batch call.

## Facts

- Endpoint: GET https://api.syntalic.com/v1/reference/reverse
- Price: $0.01/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-15
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/syntalic-taxonomy-reference-lookup-f7f4de21
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_nLlfr8aJ-JCa7jtDKqsaf

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 syntalic-taxonomy-reference-lookup-f7f4de21
```

Example prompt: Can you resolve these taxonomy IDs — 1042, 2891, 5503, and 7714 — to their full category names and hierarchy paths?

## When to prefer this

Use this endpoint when you have raw taxonomy IDs from Syntalic's retail and product category system and need to resolve them to human-readable names or hierarchies. It is particularly valuable when enriching product feeds, analytics exports, or category-level reports with descriptive labels. Prefer this over manually maintained category dictionaries when working with Syntalic's live taxonomy, and use the batch capability (up to 100 IDs per call) to minimize cost and latency.

## Known failure modes

- Invalid or unrecognized taxonomy ID returns an error or null entry for that ID
- Submitting more than 100 IDs at once may result in a rejection or truncation
- Payment failure (insufficient USDC balance) blocks the request
- Malformed request body returns a 400-level error
- Network timeout if the batch is processed slowly

## How this service works

Real-time CPG analytics for brand & marketing teams — live pricing, share-of-shelf, and promo intelligence across US and Canadian retailers. Your agent runs the queries; you get the charts on a dashboard you keep. Pay-per-call via x402 and MPP.

## Output

Returns reference metadata for each submitted taxonomy ID, including the human-readable category name, hierarchical path, and any associated classification metadata — up to 100 IDs resolved per request.

## Response schema (JSON Schema)

```json
{
 "type": "json"
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/syntalic-taxonomy-reference-lookup-f7f4de21/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.syntalic.com](https://www.zero.xyz/host/api.syntalic.com/llms.txt)