Create stock market reports with OpenAI GPT-5.2 & Massive's MCP server in under 200 lines of code

See how to generate automated stock market reports using OpenAI’s GPT-5.2, the Agent SDK, and the Massive MCP server — all in under 200 lines of code. This walkthrough shows how a lightweight agent can query real-time market data, reason over structured financial inputs, and produce clean, narrative-ready market reports without manual data wrangling.

If you’re exploring how OpenAI’s Agent SDK can be combined with institutional-grade market data from Massive to automate research workflows, this demo provides a practical, end-to-end example of what’s possible with modern agent-based architectures.

The code for this demo is available alongside the full walkthrough in the blog post below.

Key takeaways:
→ How to use OpenAI’s GPT-5.2 with the Agent SDK for financial workflows
→ How to connect an agent to real-time market data via the Massive MCP server
→ How structured market data is retrieved, passed to tools, and reasoned over
→ How agents generate consistent, narrative stock market reports
→ How to build an end-to-end reporting pipeline in under 200 lines of code

Chapters:
00:00 – MSFT vs META over the last year
00:17 – How the demo works
00:37 – Open AI Traces Dashboard
00:40 – Instructions to run the demo

You can find the full blog post that goes along with this video:
https://massive.com/blog/creating-sto...

Not financial advice.