[
  {
    "name": "SEC EDGAR company facts API",
    "url": "https://data.sec.gov/api/xbrl/companyfacts/CIK0000320193.json",
    "purpose": "Real tabular filing facts and document metadata"
  },
  {
    "name": "arXiv API",
    "url": "https://export.arxiv.org/api/query?search_query=all:document%20understanding&start=0&max_results=5",
    "purpose": "Public papers and document-layout retrieval scenarios"
  }
]