Stock News API vs Substructure

REST API for relevance-scored, ticker-linked financial news: a real-time stock news API for trading bots, AI agents, and dashboards. Free tier, no credit card.

subs is an agent harness for the cloud. It runs an unprivileged agent loop with no system access. It uses MCP servers for tools. It can run locally or as a client and server.

About Stock News API

REST API for relevance-scored, ticker-linked financial news: a real-time stock news API for trading bots, AI agents, and dashboards. Free tier, no credit card. Every article arrives scored for relevance and linked to tickers, so a trading bot or an agent backend can filter the wire at request time. Filter server-side Symbol, category, minimum relevance and delta polling are query params, so the wire is cut before it costs you a token. Enough to evaluate the feed and build a prototype.

About Substructure

subs is an agent harness for the cloud. It runs an unprivileged agent loop with no system access. It uses MCP servers for tools. It can run locally or as a client and server. Create the project from the file, then give it your LLM key. Configure the engine to send a webhook to your system and take complete control over the agent loop and Slack agent behavior. You handle a webhook, customizing just the steps you care about.