@bursar/circuits

The proving artifacts behind Bursar's private payments. @bursar/sdk and @bursar/mcp load them; an agent does not install this package on its own.

Two circuits ship here:

• Within mandate (build/): proves a payment fits a private mandate's sealed terms, the limits, the kinds of work and the providers, without revealing them. The account checks the proof on every payment.
• Shielded pool (privacy-pools/): the deposit commitment and the withdrawal proof for the shielded USDG pool, vendored from Privacy Pools.

Each ships its compiled circuit, its proving key and its verification key, so a proof is made locally with nothing fetched at runtime. The verification keys match the verifier contracts deployed on Robinhood Chain.

import { artifacts } from '@bursar/circuits/artifacts';
import { shieldedArtifacts } from '@bursar/circuits/privacy-pools';

Node 22 or newer. ESM only.