As of now the Seek and FLIR One cameras (and a few Chinese ones) appear to be the only thermal cameras at a reasonable cost. Some have SDKs with API functions to call to get images, but even these APIs intended for use by programmers (which you would think would give wide access to the camera's data) only give the programmer limited access to the data actually streamed from the camera core. This prompted some people to use the WinUSB driver installed from Zadig and writing their own custom software from reverse engineering of the cameras. This works usually (even giving the programmer more access to data than the official SDK), but no guaranty that it will work, as it's not officially supported by the company that made the camera.
So I propose a solution to this situation. Make a thermal imaging camera aimed at hobbyists. Some of us should get together and start a new company, pool our resources, buy some FLIR thermal imaging ICs (the actual VOx focal plane arrays, not complete cores), and make our own cores and cameras. Then sell these with SDKs that have API functions that actually do give wide access to the various data generated by the camera or core, including a special raw mode that allows getting the RAW unprocessed image directly from the imaging array (allowing corrections to be applied in the application on the PC, rather than in the camera itself, so that programmers can get a feeling for how such raw images are corrected, and maybe even develop new more efficient correction and processing algorithms for their software). Don't make the SDKs proprietary, and don't encrypt the data stream from the core or camera. Keep it as open as possible. Include a viewer program in the SDK for testing the cores and cameras, but don't restrict it to purchasers of the SDK. Also post a copy of the viewer software on the publicly accessible part of the company's website.
Yes, there are international distribution issues that require special export licenses, but there's a simple solution for that. Don't sell to international customers. Sell only to US customers, and include a disclaimer on the website that it is illegal for any purchaser to resell it to anybody outside of the US. If any information on the website itself is something that is protected information that can't be legally shared with anybody outside the US, then keep that info on a special section of the website, where the the company website's server software is configured to region-lock those pages, using IP address to verify the location of the person attempting to browse to those pages. Simply return a 404 error for anybody outside the US that attempts to access those pages, so that people outside the US won't even know those pages exist. Also make sure that there's a big warning text at the top of each page in that section of the website, that it's a violation of federal law to share this info with people outside of the US, so that they know it would be illegal to copy any info from those pages and paste it onto an internationally accessible forum or social media website.
Doing this, so there's ONLY ONE version of the product (instead of 2, one for international and one for the US), means that the operation can be much cheaper. It's much cheaper to just make one product line, and that savings to the company can be passed on to the consumer by lower prices. Also, since my suggestion is to make the US version the one and only product line (not the international version as most companies do, limiting them to only making 9Hz thermal cameras), that means the company I'm suggesting could make 30Hz and 60Hz frame rate cameras as its only product line. Yes, you will miss out on international customers, but you will also attract more US customers (like myself) who absolutely HATE to be stuck with only low frame rate thermal cameras.
If anybody wants to start such a company, with a US-only consumer/hobbyist thermal imager camera or core as its primary product, then I would gladly work for that company.