CLI - Zceipt

Install with cargo install --locked --path crates/zceipt-cli. Run zceipt <command> --help for every option.

Spend authority

Command	Does
`create`	Make a receipt for a payment you sent, from a seed phrase (`--seed-stdin`), a viewing key (`--ufvk`) or a zcash-devtool wallet (`-w`, `-i`). `--unsigned` makes the proofs only.
`sign`	Sign a prepared receipt on the machine that holds the key. Shows what it signs and asks first.
`verify`	Verify a receipt, batch, claim or proof against the chain.
`inspect`	Decode a receipt with no network.
`export`	Verify many receipts into a spreadsheet, with a record per receipt.
`demo`	A real testnet receipt verified and an edited copy refused.

Relationships

Command	Proves	Page
`create --txid … --txid …`	One key made every payment (batch with `zip311k1`)	Same payer
`claim`	One claim per wallet in a domain, from a note held at a snapshot	Distinct payers
`tag`	A payer tag for a payment, for a round	Distinct payers
`siblings`	Two tags come from accounts of one wallet	Sibling accounts
`key`, `create --key-set`	Signed under one of a published set	Key sets
`delegate`, `sign --session`	Issue receipts under a policy without the spend key	Delegation
`income`	Received at least an amount across payments	Income
`create --prove-source`, `--screened-set`	Which output funded it, or a vetted set	Source of funds
`verifier-key`, `sign --for`	A receipt a single verifier can check but not pass on
`received`, `reserve`	The recipient’s side; proof of funds

Verify options that state a relationship

Option	Requires
`--key-set <file>`	A key-set proof over this set (refused if the receipt carries none)
`--policy-commitment <file>`	A FROST policy proof over this published commitment (refused if none)
`--list <file>`	A list-mode claim against this published list of note commitments; needs `--domain` and `--min`
`--network main\|test`	Refuse artifacts of the other network
`--siblings <proof>`	With `--payer-tag`: count the accounts it proves one wallet’s once
`--domain <name>`	A claim or payer tag for this domain
`--height <n>`	A claim’s snapshot block, or the height of `--raw-tx`; a claim also needs `--min`, the least floor you accept
`--payer-tag <tag>`, `--min-payers <k>`	An income proof whose payments came from at least k wallets
`--min-payments <n>`	At least n separate payments
`--verifier-key <file>`	A receipt made for this verifier alone
`--challenge <hex>`	The receipt signs this challenge
`--expect-address`, `--min`	A disclosed output paid this address at least this much
`--cross-check <host:port>`	A second server confirms the block (it learns the txid)
`--raw-tx <file>`	Offline verification

Payment API

zceipt shop is the REST API, webhooks, SDK-facing commands and an MCP server for shops and exchanges. It is optional tooling around the same core; see docs/QUICKSTART.md in the repository.