Diffbot Agentic Service

## Intro [Diffbot][diffbot] is a service that can extract structured data from web pages. It allows one to query a trillion pieces of connected content across the web or extract them on demand. ## Pre-requisites Ensure the following environment variable is set: - `DIFFBOT_API_KEY` - API key for Diffbot service Otherwise, you can pass it in as an argument to the `DiffbotClient` constructor. ### How to Retrieve API Key TODO: Add instructions [diffbot]: https://www.diffbot.com