Photon energy API: convert between electromagnetic wavelength (nm), frequency (Hz), and photon energy (joules and electron-volts) using exact physical constants (c, Planck's h). Give a wavelength or a frequency and get the full set. For optics, spectroscopy, physics, and astronomy agents.
| Network | Scheme | Amount | Pay To |
|---|---|---|---|
| Base | exact | $0.002000 USDC | 0x8503...9432 |