The CPT Physics Engine

Particle masses, nuclear binding energies, and the gravitational constant derived from just two inputs: the electron mass and the fine-structure constant. Full engine. Free and open. TypeScript + Python.

Free & Open

Constants, topology, electrodynamics, particle masses, nuclear binding — everything in one package. MIT-licensed.

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Why use CPT Physics

Reproducible geometry-grounded computation, consistent TypeScript and Python APIs, zero free parameters, and zero dependencies.

Validation

83+ tests passing

Languages

TypeScript + Python parity

Modules

5: constants, topology, ED, particles, nuclear

Free parameters

Zero

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