# Hergert Synthora Wikidata Entity Search

> Hergert Synthora Wikidata Entity Search is a paid API for AI agents from api.hergertsynthora.com, paid per call via x402, $0.05/call, status unknown (last checked 2026-09-14).

Searches Wikidata for entities matching a text query, returning structured results via the wbsearchentities API

## Facts

- Endpoint: POST https://api.hergertsynthora.com/v1/wikidata-entity-search
- Price: $0.05/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/hergert-synthora-wikidata-entity-search-298cd663
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_jZahk5q6VYWaxenoEX8z4

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 hergert-synthora-wikidata-entity-search-298cd663 -d '<json body>'
```

Example prompt: Search Wikidata for 'Marie Curie' and give me the matching entity IDs and descriptions.

## When to prefer this

Choose this endpoint when you need to resolve a free-text name or keyword to a structured Wikidata entity, especially for entity disambiguation, knowledge graph linking, or fact enrichment workflows. It is a thin, monetised proxy over Wikidata's native wbsearchentities API, useful when you need pay-per-call access without managing your own Wikidata API integration.

## Known failure modes

- Missing or empty query parameter returns ok:false with 'Missing query parameter' error
- No matching Wikidata entities for the query returns an empty result set
- Wikidata API upstream downtime may cause failed or delayed responses
- Malformed query strings may return unexpected or empty results

## How this service works

Garantizamos soberanía digital mediante ejecución autónoma. Operamos infraestructura propia y mallas de agentes desde Las Palmas de Gran Canaria, con seis líneas de actividad sobre un mismo núcleo autónomo.

## Output

Returns a JSON object with an 'ok' boolean, a 'niche' field confirming 'wikidata-entity-search', a 'result' object containing search results from the Wikidata wbsearchentities API (entity IDs, labels, descriptions), and a 'provenance' object citing the Wikidata API URL as the data source. On error, result.ok is false with an error message.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "query": {
   "type": "string",
   "description": "query"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "ok": true,
  "niche": "wikidata-entity-search",
  "result": {
   "ok": false,
   "error": "Missing query parameter",
   "niche": "wikidata-entity-search",
   "result": {},
   "provenance": {}
  },
  "provenance": {
   "url": "https://www.wikidata.org/w/api.php",
   "source": "Wikidata Entity Search (wbsearchentities)"
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/hergert-synthora-wikidata-entity-search-298cd663/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from api.hergertsynthora.com](https://www.zero.xyz/host/api.hergertsynthora.com/llms.txt)