x402-cli

TypeScript command-line client for BankofAI x402 payments. This version uses the npm TypeScript SDK packages only:

• @bankofai/x402-core@1.0.0
• @bankofai/x402-evm@1.0.0
• @bankofai/x402-tron@1.0.0

Stablecoin payments use scheme=exact with extra.assetTransferMethod=permit2.

Install

npm install
npm run build

Run from source during development:

npm run dev -- serve --pay-to <recipient> --amount 0.0001 --network tron:nile --token USDT

Run the compiled CLI:

node dist/cli.js <command> [options]

Common CLI options:

x402-cli --help
x402-cli --version
x402-cli pay --help

Output is human-readable by default. Add --json to commands such as pay, serve, gateway check, and catalog search for a stable machine-readable envelope with ok, command, result, or structured error fields.

Commands

Serve

Start a local x402 paywall endpoint:

node dist/cli.js serve \
  --pay-to <recipient> \
  --amount 0.0001 \
  --network tron:nile \
  --token USDT \
  --port 4020

The server exposes:

• GET /health
• GET /.well-known/x402
• GET /pay returns 402 Payment Required
• POST /pay verifies and settles with the facilitator

Pay

Pay an x402-protected URL:

TRON_PRIVATE_KEY=<hex> \
node dist/cli.js pay http://127.0.0.1:4020/pay \
  --network tron:nile \
  --token USDT

For EVM networks use EVM_PRIVATE_KEY or PRIVATE_KEY.

Roundtrip

Start a temporary local server and immediately pay it:

TRON_PRIVATE_KEY=<hex> \
node dist/cli.js roundtrip \
  --pay-to <recipient> \
  --amount 0.0001 \
  --network tron:nile \
  --token USDT

Networks

Supported built-in token registry:

• tron:mainnet USDT, USDD
• tron:nile USDT, USDD
• tron:shasta USDT
• eip155:56 USDT
• eip155:97 USDT, USDC

Aliases accepted:

• tron-mainnet -> tron:mainnet
• tron-nile -> tron:nile
• bsc-mainnet -> eip155:56
• bsc-testnet -> eip155:97

Facilitator

Pass a facilitator URL when needed:

x402-cli serve --facilitator-url https://facilitator.bankofai.io ...

CLI payment challenges and payload selection always emit scheme: "exact" for the SDK 1.0 Permit2 path.