Why finlight: What You Can Build with a Financial News API

finlight gives you structured, enriched, real-time financial news through a single API. That is the what. This post is about the why: the things teams actually build on top of it, and which finlight capabilities make each one possible.

If you want the full capability tour first, see What the finlight API Can Do.

Real-time trading signals

News moves markets in seconds. With finlight's WebSocket stream, your system receives each relevant article the moment it is published, already scored for sentiment and tagged with the companies involved. You can turn a stream of headlines into a numeric signal and act on it without scraping or parsing anything yourself.

Powered by: WebSocket streaming, sentiment, company entities.

Risk and portfolio monitoring

Track everything being said about your holdings. Filter by the tickers in a portfolio, watch sentiment shift, and surface regulation, geopolitics, or security stories before they become a problem. finlight resolves each company to its real identifiers, so a position maps cleanly to the news about it.

Powered by: ticker filtering, categories, company entities.

Research and analytics platforms

Build research tools on top of a clean, queryable news archive. Pull historical coverage for a company or sector, aggregate sentiment over time, and combine it with your own data. Because every article is already structured, you spend your time on analysis instead of data cleaning.

Powered by: REST API, query language, sentiment, date ranges.

News dashboards and terminals

Give analysts a live, filterable view of the market. A browser app can subscribe to finlight over WebSocket and render headlines as they arrive, filtered by ticker, country, or category, in any of 9 languages.

Powered by: WebSocket, country and category filters, multilingual coverage.

AI research assistants

Let an analyst ask questions in plain language. With finlight's MCP server, an assistant like Claude or ChatGPT can query the news directly, so "summarize this week's sentiment on European banks" just works, with no code required.

Powered by: MCP server.

Alerts and automations

Push the right news into the tools your team already uses. With webhooks, finlight calls your endpoint the moment a story matches your filters, so you can fire a Slack message, open a ticket, or kick off a workflow automatically.

Powered by: webhooks, filtering.

What makes it possible

Every one of these comes back to the same foundation: news that is structured, enriched with sentiment and company entities, filterable with precision, and available on demand or in real time. You bring the use case; finlight brings the clean data.

Start building

• Make your first call with the Quick Start guide.
• See the full documentation.
• Compare plans at finlight.me/pricing.

Get your free API key →