top of page

2025 Wrap Up

2025 was a productive year at Theta Data! We built out a V3 architecture for our API, which has more performance and features than v2. See the full list of our milestones below.


  • Increased ISP bandwidth capacity by 10x

  • 60 new servers added

  • Increased employee headcount by 400%

  • 2x increase in MRR growth rate

  • First-ever summer intern program

  • Added an excel plugin that supports real-time and historical access

  • Built out another data center presence

  • First-ever on-site holiday dinner

  • Added market holiday calendar endpoints 

  • Release of flat file endpoints

  • Improved calculation for Greeks time to expiration

  • Improved monitoring of APIs, processes, and hardware

  • High availability load balancing and redundancy across our stack



Got Questions?

We've got answers! Join Theta Data for our Weekly Live Q&A on Tuesdays at 2:00pm ET. Come for the entire hour or just drop in for a few minutes to get your questions answered. This is a great chance to get guidance directly from Theta Data and also to hear from your peers. We look forward to seeing you soon on Discord! Join here!


We’d Love Your Feedback

Do you have a feature request or share how we can make your experience even better by contacting support@thetadata.net or reach out to us on our discord.

More enhancements are on the way—stay tuned.


– The Theta Data Team


 

MCP Now in Terminal v3 (beta)

Updated: Aug 21, 2025

We're excited to announce that the Theta Terminal V3 now supports an MCP (Model Context Protocol) server.


What is MCP?

Model Context Protocol (MCP) is a lightweight event stream format designed for context injection into large language models.


Getting Started

You can integrate our MCP server with most LLM’s that have CLI tools, for example Gemini cli, and Claude cli. (The suggested setup requires that you have npm already installed) Please see the full documentation here: https://docs.thetadata.us/Mcp/Getting-Started.html


Gemini setup:

  1. npm install -g @google/gemini-cli

  2. Edit your `~/.gemini/settings.json` with the below

    1. {

      "mcpServers": {

      "Theta Data": {

       "url": "http://localhost:25503/mcp/sse",

       "timeout": 30000

             }

       }

}


Claude setup:

  1. npm install -g @anthropic-ai/claude-code

  2. Run command `claude mcp add --transport sse ThetaData http://localhost:25503/mcp/sse`


Example

You can now use natural language to make requests to Theta Terminal v3. For example, to make a request similar to “http://localhost:25503/v3/option/history/greeks/eod?symbol=AAPL&right=C&strike=200.0&expiration=2025-08-01&start_date=2025-07-28&end_date=2025-08-01“

you can enter the following prompt into your LLM CLI: “Get the eod greek for last week for AAPL strike 200.00 CALL and expiration 2025-08-01.” (As all LLMs are different and constantly changing, this example might not work perfectly for you.) You can also add additional instructions to your prompts to get more insight on your request, such as, “Put this in a table showing the delta change.”

Short video of using gemini cli before adding Theta Data MCP
Short video of using gemini cli before adding Theta Data MCP

We’d Love Your Feedback

This feature is in beta, and we’re actively listening. Let us know how you’re using MCP in v3, and what would make the experience even better by contacting support@thetadata.net or reach out to us on our discord.

More enhancements are on the way—stay tuned.


– The ThetaData Team


 

REST API V3 (beta)

Updated: Jul 22, 2025

Introducing REST API V3 (beta)

Over the past several months, we have been working on version 3 of our REST API and a completely rewritten terminal. Below are some features in this beta release:

  • There are no more hist and bulk_hist endpoints, they have been combined into a single history endpoint. The full documentation can be found here: https://docs.thetadata.us/.

  • There is no more next-page header / pagination to deal with. All responses can now be received using a single query.

  • 3 output formats: csv, json, and ndjson. With ndjson you can easily take the output, and feed it directly into Pandas or Polars to construct a DataFrame.

  • The terminal automatically updates itself, so you are always running on the latest version.

  • Doubled the number of active requests for each user.

  • Snapshots are 2x - 3x faster, and almost every endpoint is faster; some as much as 10s faster!


We would love for you to try this beta release of v3 today: download here. You can start using the v3 terminal by simply adding your email and password to a creds.txt file in the same directory as the ThetaTerminal3.jar file. Best of all, you can run both terminals at the same time!


Some things to note about the new API/terminal:

  • The new terminal only has the RESTful API; there is no streaming. Please continue to use the v2 terminal for streaming. Version 3 of streaming is coming soon though.

  • Terminal updates only happen during startup, and never occur while running. While the terminal is in beta, please restart it daily to ensure you are running the latest version.

  • As mentioned above, endpoints have changed from v2 to v3. You will receive a warning (410 GONE) from the terminal if you attempt to use a v2 endpoint. All the same data/functionality exists, just at different and more consistent locations. Please see the full documentation here: https://docs.thetadata.us/ 


We’d Love Your Feedback

This feature is in beta, and we’re actively listening. Let us know how you’re using API v3, and what would make the experience even better by contacting support@thetadata.net or reach out to us on our discord.

More enhancements are on the way—stay tuned.


– The ThetaData Team


 
bottom of page