NASA ADS

NASA Astrophysics Data System

Endpoint	`https://ui.adsabs.harvard.edu`
Trust	100% uptime over 1 checks · ~921 ms
Pricing	See the provider
docs url	https://ui.adsabs.harvard.edu/help/api/api-docs.html
auth	none
source	public_apis

Use it

Endpoint

https://ui.adsabs.harvard.edu

This listing as JSON

curl https://aipaygen.com/v1/catalog/api/1172

Search the whole marketplace from your agent (MCP)

{
  "mcpServers": {
    "aipaygen": {
      "url": "https://aipaygen.com/mcp"
    }
  }
}