bankofai-x402-cli 0.6.1b1

x402-cli — one-shot BankofAI x402 CLI: serve a 402 payment endpoint, or pay one as a client.

x402-cli

The BankofAI command-line client for the x402 protocol — pay any x402-protected URL, run your own paywall, or test the full handshake locally. No code required.

x402-cli is the single user-facing entrypoint. It includes payment commands, public catalog discovery, and provider gateway operations under one command tree. The gateway runtime is packaged underneath the CLI, so most users only install and remember x402-cli.

1. Install

pip install bankofai-x402-cli==0.6.1b1
x402-cli --version

2. Set up a wallet (one-time)

x402-cli delegates all signing to bankofai-agent-wallet. Fastest path — import a 32-byte hex private key:

agent-wallet start raw_secret \
  --wallet-id payer \
  --private-key 0x<your-32-byte-hex-private-key>

A single key derives both an EVM address and a TRON address. You don't need a separate wallet per chain.

Other setup paths (encrypted local store, mnemonic, Privy-managed): see agent-wallet — Getting Started.

3. What each command does

Command	Who you are	What it does
x402-cli pay <url>	The payer	Hits a URL, and if the server returns 402 Payment Required, the cli signs + submits the payment + retrieves the response.
x402-cli serve	The recipient	Starts a local 402 paywall endpoint that only returns content after a valid payment is settled.
x402-cli roundtrip	Self-test / one-shot transfer	Spins up a serve in the background, runs pay against it, and tears it down. The fastest way to make a payment from the command line — and the easiest way to verify your install end-to-end.
x402-cli catalog search <query>	API consumer / agent runtime	Searches the public x402 catalog to find a matching paid capability before calling it.
x402-cli gateway start ...	API provider	Starts a self-hosted provider gateway from local provider.yml files.
x402-cli catalog export-gateway <url> --provider <fqn>	API provider	Exports public catalog.json and pay.md files from a self-hosted gateway for PR submission.

Catalog search can read the hosted catalog, a local dist/catalog.json, or a gateway-exported catalog URL. This is the discovery step for agents and local tooling: the user asks for a capability, the catalog search finds matching paid APIs, then the normal x402 payment client can call the selected gateway URL.

export X402_CATALOG=https://catalog.bankofai.io/api/catalog.json
x402-cli catalog update
x402-cli catalog search "weather"
x402-cli catalog show acme-weather
x402-cli catalog endpoints acme-weather
x402-cli catalog pay-json acme-weather

For local gateway development:

x402-cli gateway scaffold acme-weather \
  --output-dir providers/acme-weather \
  --forward-url https://api.example.com

x402-cli gateway check providers/acme-weather/provider.yml
x402-cli gateway start --providers-dir providers --host 0.0.0.0 --port 4020

Expected flow with the gateway:

Natural-language intent
  -> x402-cli catalog search
  -> x402-cli catalog show/endpoints/pay-json
  -> provider endpoint from the catalog
  -> x402-cli pay <gateway endpoint>
  -> x402 SDK handles the 402 challenge and payment retry
  -> upstream API result

Provider onboarding flow:

x402-cli gateway check providers/acme-weather/provider.yml
x402-cli gateway start --providers-dir providers --host 0.0.0.0 --port 4020

x402-cli catalog export-gateway https://gateway.example.com \
  --provider acme-weather \
  --output-dir providers/acme-weather

The command writes public PR files only:

providers/acme-weather/catalog.json
providers/acme-weather/pay.md

Do not submit provider.yml, .env, upstream API keys, bearer tokens, or passwords.

Provider catalog build commands are also under x402-cli:

x402-cli gateway catalog generate providers/acme-weather/provider.yml
x402-cli gateway catalog pay-assets providers/acme-weather/provider.yml
x402-cli gateway catalog check providers
x402-cli gateway catalog build providers --dist-dir dist
x402-cli gateway catalog search providers weather

4. Copy-paste: a USDT transfer on TRON mainnet

Replace <recipient-TRON-address> with a real T... address and run:

x402-cli roundtrip \
  --pay-to <recipient-TRON-address> \
  --amount 1 \
  --token USDT \
  --network tron:mainnet

Successful output (excerpt):

{
  "ok": true,
  "result": {
    "scheme": "exact_permit",
    "amount": "1000000",
    "paid": true,
    "transaction": "<64-hex-tx-hash>"
  }
}

Verify on chain at https://tronscan.org/#/transaction/<tx-hash>.

What just happened? Your wallet signed a permit off-chain (free, no gas), and the facilitator submitted it on chain on your behalf. You pay no TRX per payment — the facilitator covers gas.

First-time only: if this is your wallet's first payment for this token, the cli will ask you to sign and broadcast a one-time approve transaction (~6 TRX on mainnet) so the PaymentPermit contract can move tokens on your behalf later. After that, every payment is gas-free from your side.

Don't have any TRX at all? Add --scheme exact_gasfree to skip even that one-time approve — it routes everything through a GasFree relayer that fronts gas in exchange for a per-settlement fee deducted from a derived custodial address. Setup: docs/manual-test-guide.md → Walkthrough A.

Templates for other networks

Network	Replace --network with	Notes
TRON mainnet (default permit)	tron:mainnet	Facilitator pays per-payment gas. One-time ~6 TRX approve when you first use a token from a fresh wallet. Add --scheme exact_gasfree to skip that too.
BSC mainnet (USDT permit)	eip155:56	Same model — facilitator pays per-payment gas; one-time approve fee in BNB on first use.
TRON Nile (testnet)	tron:nile	Faucet
BSC Testnet	eip155:97	Faucet

To force a specific settlement scheme (instead of the auto-pick), add --scheme exact_gasfree | exact_permit | exact.

5. Amount units

rawAmount = amount × 10^decimals

What you mean	Flag to use
"1.25 USDT" (human-readable decimal)	--amount 1.25
1250000 (smallest on-chain unit, USDT has 6 decimals)	--rawAmount 1250000

Spending caps on pay follow the same split: --max-amount / --max-rawAmount.

6. Common errors

Error	Resolution
Insufficient GasFree balance	The GasFree custodial address is underfunded. See top-up steps.
cannot import name 'TokenRegistry' …	You're on bankofai-x402-cli ≤ 0.1.0b10. Upgrade: pip install --pre --upgrade bankofai-x402-cli.
resolve_wallet could not find a wallet source	No wallet configured yet. Go back to step 2.
Stuck on Master Password: prompt	A local_secure wallet without a persisted runtime password. Re-run with --save-runtime-secrets.
too many pending transfers	GasFree relayer rate limit. Wait 30–60s and retry.

Full troubleshooting matrix: docs/manual-test-guide.md → Troubleshooting.

Learn more

• docs/manual-test-guide.md — full hands-on walkthroughs from install to on-chain tx, covering TRON GasFree, TRON permit, and BSC permit.
• FEATURES.md — full flag matrix and example output for each command.
• agent-wallet docs — wallet setup options (Privy, mnemonic, encrypted local store).
• bankofai-x402 SDK — the underlying protocol and its programmatic API, in case you want to integrate directly instead of through the cli.