bizX402 Developer Toolkit

This release contains two local programs:

- bizx402: discover, quote, pay for, and call marketplace services.
- bizx402-mcp: expose the same buyer operations to a local MCP client.

Private keys are never accepted as command arguments, environment variables,
JSON, or MCP tool input. Import a signer only from a trusted interactive terminal:

  bizx402 signer import

For Image Guard:

  bizx402 services describe image-guard-security-scan@3
  bizx402 quote image-guard-security-scan@3
  bizx402 call image-guard-security-scan@3 \
    --file file=./sample.png \
    --max-amount-atomic 10000

The paid call uses Base Sepolia test USDC in the current Demo environment.
