Public API

Developer API

A free public API for entity data maintained by XenoSpectrum:
companies, technologies, people, and terms. Use it for LLMs, research, and application development.

No authentication requiredCORS enabledCDN cachedCC BY 4.0

Endpoint

GEThttps://xenospectrum.com/api/v1/entities/{type}/{slug}

Returns details, related articles, and co-occurring entities for an approved entity.

Path parameters

Parameters	Type	Description
`type`	string	Entity type:`term` / `company` / `tech-product` / `person`
`slug`	string	Entity identifier (for example, `nvidia` or `tsmc`)

Example request

curl

curl "https://xenospectrum.com/api/v1/entities/company/nvidia"

Error responses

Status	Description
`400`	Invalid `type` parameter
`404`	Entity not found or not approved
`429`	Rate limit exceeded

Example response

The API returns original Japanese text in its content fields. This example illustrates the response structure; API URLs are independent of the website language.

JSON

{
  "ok": true,
  "data": {
    "slug": "nvidia",
    "name": "NVIDIA",
    "type": "company",
    "description": "半導体企業。GPU 設計で知られる。",
    "officialUrl": "https://www.nvidia.com",
    "wikidataId": "Q182477",
    "approvalStatus": "approved",
    "relatedArticles": [
      {
        "slug": "nvidia-blackwell-launch",
        "title": "NVIDIA Blackwell 正式発表",
        "publishedAt": "2026-03-18T09:00:00.000Z",
        "url": "https://xenospectrum.com/nvidia-blackwell-launch/"
      }
    ],
    "relatedEntities": [
      {
        "slug": "amd",
        "name": "AMD",
        "type": "company",
        "coOccurrences": 142
      }
    ],
    "updatedAt": "2026-05-16T10:00:00.000Z",
    "_links": {
      "self": "https://xenospectrum.com/api/v1/entities/company/nvidia",
      "entityPage": "https://xenospectrum.com/entities/company/nvidia/"
    }
  }
}

Rate limit

60requests / minute / IP

Requests exceeding this limit receive 429 Too Many Requests with a Retry-After: 60 header.

For bulk data access, please contact us.

Terms of use

CC BY 4.0 — Available for any use, including commercial use. Attribute the source as"XenoSpectrum (xenospectrum.com)".
Please refrain from excessive repeated requests or use for scraping.
We do not guarantee data accuracy, but continually work to improve its quality.