NewsFilter.io

What it is

A financial news API with three parts: a query API that searches the corpus, a websocket stream that pushes newly indexed articles, and a render API that returns article content. The vendor claims new articles are indexed "in under 500 milliseconds after publication", and that its NLP tags each article with the ticker symbols of the companies mentioned in it.

The corpus is the point. Roughly twenty-five named sources sit in one index: Bloomberg, Reuters, CNBC, the Wall Street Journal, Barron's, Seeking Alpha, Benzinga, S&P Global and the PR wires (PR Newswire, GlobeNewswire, BusinessWire, AccessWire), plus earnings-call transcripts and a row of US government feeds — SEC filings and press releases, FDA drug approvals, USPTO, FCC, CFTC, SAM.gov and ClinicalTrials.gov. Querying an 8-K, a Reuters story and an FDA approval in one request, and getting them pushed rather than polled, is the thing being sold.

Pricing

Four tiers, and the page opens on month-to-month, so the headline figures are the ones you pay without committing a year. The annual toggle is labelled "10% discount" but actually takes Basic from $35 to $29 — nearer 17%.

The free Starter tier is real but deliberately crippled: 100 calls a day, five articles per request, new articles withheld for an hour, and search restricted to the last month. Basic at $35 buys real-time access and a year of history. The websocket stream — the reason to choose this over polling anything else — does not appear until Professional at $65, which is also where the article scraper and the 99.95% SLA start. Enterprise is quote-only through a partners address.

Data & coverage

History is capped hard and by tier: one month on Starter, one year on Basic, four years on Professional. Enterprise buys more requests and more articles per request, but not more history — it is four years there too. There is no price or fundamentals data of any kind; this is text about companies, not market data.

Integrations

Plain HTTP POST with a JSON body and a Lucene-style queryString, which makes field queries like symbols:AAPL straightforward. The stream is socket.io or raw websocket, so any language with a client can hold the connection. The documentation ships copy-paste examples in curl, Python and Node.js; the Python one is plain requests, and the only SDK named anywhere is the vendor's financial-news-api npm package, one version, published December 2022. A Discord news bot is documented as a separate front end.

Limitations

The SEC filings source appears to have stopped on 24 April 2026. The site's own landing-page SEC feed (articles-sec.json) was regenerated on 14 September 2026 and contained twenty filings, every one of them timestamped 24 April 2026 — 424B2 prospectuses, Form 4s, proxy statements and a single 8-K, nothing newer. The IPO feed stopped on the same date. Meanwhile the press-release feeds were carrying BusinessWire items published on 14 September 2026 at 15:30 UTC, so the ingest pipeline is running; the filings half of it is not producing. One of the four uses the documentation advertises for the stream is "informing traders and investors in real-time when a new SEC 8-K or 10-Q filing is published" — verify that against a live key before paying for it.

Some other feeds have rotted too, one of them by years. Checked the same day: the S&P Global feed's newest item was 15 November 2024, the general latest-news feed has not changed since 13 April 2023, and the insider-trading feeds have been frozen since 5 January 2021; Reuters stopped at 6 August 2026. The Bloomberg, CNBC, FDA, earnings and transcript feeds were all carrying items from that same afternoon, so this is per-source rot and not a dead pipeline.

Getting a key has been reported broken since 2024. An issue on the vendor's own GitHub repository, opened 18 June 2024 and still open, reports that trying to generate a free Starter key lands on an account page showing only an email address and no key, with no reply from support. Four more people have commented on it since, the last in February 2026, and none of the comments is the vendor's. Both the bot-block page and the API's invalid-key error tell you to email support for a key rather than self-serve.

Four years of history is less than the free alternative. EDGAR full-text search costs nothing and reaches back to 2001, so on filings the paid archive here is the shallower one.

Redistribution needs a written licence, under terms that predate the product. The terms grant access "for your own personal internal use" and require a written licence before any collection, aggregation, display or derivative use for any purpose beyond that, commercial ones included. They carry a revision date of 30 September 2019, still describe Robinhood and TradeIt account linking and an Apple App Store build, and never mention Newsfilter's own API. The published documentation carries 2021 and 2022 copyright lines.

Alternatives

Benzinga News API, Marketaux, StockNewsAPI and TickerTick all cover the ticker-tagged news job and are being maintained. Finnhub, Financial Modeling Prep and EODHD carry news beside quotes and fundamentals, which is usually cheaper than a second vendor. If SEC filings are what you actually want, BamSEC covers the reading end and EDGAR's own full-text search the querying end, for nothing.