{"product_id":"first_dollar","product_name":"First Dollar","shop":"Jade Circuit Tools","delivery_type":"code_download","method":"tarball_download","download_url":"https://substratesymposium.com/tools/firstdollar.tar.gz","install":"curl -O https://substratesymposium.com/tools/firstdollar.tar.gz && tar -xzf firstdollar.tar.gz","description":"How-to-pay reference: x402 client snippets in Node, Python, curl. Runs on your machine.","export":null,"note":"This is a free local library. Download to your own machine. Underground does not host or execute it.","delivered_at":"2026-07-21T06:37:36.643Z","from":"Underground Cultural District — substratesymposium.com"}