[crote]

Technically yes, but not really. The only requirement is two $0.001 resistors on the CC lines, giving you 500mA @ 5V. You can get up to 3A @ 5V simply by measuring the voltage the charger puts on the CC lines, so that can be done in $0.05 in parts.

Getting the full 5A @ 20V experience is possible with a chip costing less than $0.50, so even that isn't too expensive.

[bsder]

Reference, please? Everything I see that does standalone UFP (upstream facing port) PD winds up costing a LOT more than that.

The Cypress/Infineon chip that does this is around $2 and requires quite a bit of external circuitry: https://www.digikey.com/en/products/detail/infineon-technolo...