newsfilter
API Documentation

newsfilter.io API

Search real-time news from press wires, media and US government agencies, get the content, summaries and briefs of the articles and receive new articles over a WebSocket stream.

This is version 2 of the API. Version 1 is documented in the v1 documentation.

Base URL

https://api.newsfilter.io

Requests

  • Search accepts POST with a JSON body and Content-Type: application/json. The request body is max 10 KB.
  • List Sources, Get Content, Get Summary and Get Brief accept GET. Get Content, Get Summary and Get Brief take the article ID in the path, for example /content/ARTICLE_ID.
  • Every request needs an API key, sent as Authorization: YOUR_API_KEY. The stream takes it as ?token=YOUR_API_KEY. Create a key in your profile. Logged in, the examples hold your key and can be copied as they are.
  • Timestamps are ISO 8601 strings with the New York offset, for example 2026-10-21T10:40:02.000-04:00.