# Newcleo > Newcleo is a nuclear energy company founded in September 2021, headquartered in Paris, > that designs small modular lead-cooled fast reactors (LFR) fuelled with mixed oxide (MOX) > fuel made from reprocessed spent nuclear fuel. Newcleo publishes **no public API and no > developer program**. This file is generated by API Evangelist from the public surface; > it is not published by Newcleo. ## API surface - No public API. There is no developer portal, no documentation host, and no published OpenAPI, AsyncAPI, GraphQL SDL, Postman collection, MCP server or A2A agent card. - www.newcleo.com is a client-side React application. The server returns a 354-byte HTML shell — and HTTP 404 with that same shell for every sub-path — with all content loaded at runtime from a private Azure API Management Contentful proxy. - The only API endpoints referenced in the site bundle are website form handlers (contact-us, investor, supply-chain, user-admin, upload-investor) on newcleo-web-apim-prod.azure-api.net, gated behind an Ocp-Apim-Subscription-Key. They are the website's private backend, not an offered developer API. ## Open source - [newcleo-dev-team on GitHub](https://github.com/newcleo-dev-team): 9 public repositories of scientific/engineering software for reactor physics and liquid-metal thermal hydraulics. - [lbh15](https://pypi.org/project/lbh15/): the one library published to a package registry — liquid metal properties from the OECD/NEA Lead-bismuth Eutectic handbook (LGPL-3.0). - [lbh15 documentation](https://newcleo-dev-team.github.io/lbh15/) - [glow](https://github.com/newcleo-dev-team/glow): Geometry Layout Oriented Workflow, with [documentation](https://newcleo-dev-team.github.io/glow/). Source-distributed only. - [tugui](https://github.com/newcleo-dev-team/tugui): GUI for postprocessing TRANSURANUS fuel performance output. - [dassh_nc](https://github.com/newcleo-dev-team/dassh_nc): Ducted Assembly Steady State Heat Transfer Software. - [nchainplotter](https://github.com/newcleo-dev-team/nchainplotter): nuclide chain plotter. - [SOURCES4D](https://github.com/newcleo-dev-team/SOURCES4D): fork of LANL/SOURCES 4D. ## Company - [Website](https://www.newcleo.com) - [Hiive secondary-market listing](https://www.hiive.com/securities/newcleo-stock) - [Wikipedia](https://en.wikipedia.org/wiki/Newcleo) ## This profile - [apis.yml](https://raw.githubusercontent.com/api-evangelist/newcleo/refs/heads/main/apis.yml) - [Packages](https://raw.githubusercontent.com/api-evangelist/newcleo/refs/heads/main/packages/newcleo-packages.yml) - [Domain security probe](https://raw.githubusercontent.com/api-evangelist/newcleo/refs/heads/main/security/newcleo-domain-security.yml)