Day Zero 06
Tuesday, May 5, 2026
Technical Briefings
Nitya Subramanian
Para's Nitya Subramanian demos Para's wallet infrastructure for agentic commerce at Day Zero 06, framed around three problems with agentic payments today: hard wallet UX, plain-text private keys, and missing guardrails. Paramodal turns email verification into a fully functional wallet in seconds. The REST API provisions agent wallets with IP allowlists so a wallet for an OpenWebUI agent on a single Mac mini can only be exercised from that exact IP, then signs messages and raw transactions across Solana, Stellar, EVM, and Cosmos. Para's permissions feature enforces app-wide policies — scopes for transfers and signing, conditions like 'transaction amount < 1', plus distinct bypass and autonomous-with-policy modes for agents — at the MPC cryptography layer rather than in app code. Modular Para clients can be wrapped with x402 or MPP forwarders to slot directly into agent-payment flows.
Tyler Frederick
Radius's Tyler Frederick walks through Radius — stablecoin infrastructure aimed at millions of transactions per second to power agentic microtransactions like sub-penny purchases of data, inference, or compute — at Day Zero 06. The demo uses a fictional security/risk-assessment API called EdgeMeter, which currently blocks the ~50% of web traffic that is bots with 403s. Flip on x402 with per-request sub-penny pricing and the same bot traffic becomes monetized agent demand: live MetaMask-driven traffic settles in real time on Radius mainnet with revenue accruing per call. The deploy story is just as fast — a Claude session uses the open-source Radius x402 skill to ship a Cloudflare Worker endpoint, and a parallel buyer agent provisions a wallet, hits the Radius mainnet faucet for a 1-cent SBC drip (which funds 100 transactions at Radius's 1/100¢ per tx), then completes a paid call end-to-end in under five minutes.
James Bachini
Stellar's James Bachini ships a complete x402 server in 30 lines of code at Day Zero 06: a single Node.js file that gates a "secret number" behind a 0.01 USDC payment on Stellar Pubnet (Stellar's mainnet). The server uses the OpenZeppelin x402 facilitator as a relayer that sponsors transaction fees — agents move USDC at near-zero cost, a new paradigm for agentic systems transacting at scale. Important Stellar gotcha: a recipient wallet must establish a USDC trustline before it can receive payments; James recommends sending a 0.1 USDC test first to verify. On the buyer side, an open-source MCP server is registered into Codex via 'codex mcp add x42-stellar', backed by a hot wallet whose Stellar secret key lives in a .env variable. Codex loads the MCP, recognizes the x402 challenge on a fetch, signs and submits the payment, and returns the secret content — all visible end-to-end on a Stellar block explorer. Server + buyer + first paid microtransaction in under ten minutes.
Jeff Milewski
The Stable Coin Company's Jeff Milewski demos agents.stablecoin.xyz at Day Zero 06 — an agent-payments platform built on Para wallet infrastructure and Brale webhooks that wraps any API endpoint as an x402-monetized resource on the Radius network. Seller side: a local Express CPI mock API gets x402 middleware (1/10¢ per call, SBC on Radius) auto-implemented by Claude Code from a generated integration prompt; the gated 402 response advertises the wallet address, asset, and price. Buyer side: a "Day Zero demo" agent on Para uses preconfigured policies (per-transaction limits, dollar caps, seller allow lists) and abstracts its private key behind an API key. The buyer wallet is funded by bridging SBC from Base to Radius via Brale-powered webhooks. A public GitHub template deployed on Pinata Cloud as an OpenWebUI instance auto-loads the SBC agent ID + API key, so the agent retrieves the gated CPI data through an x402 micro-payment with no further setup — closing the seller-to-buyer loop in a single live demo.
Chase Merlin
Brale's Chase Merlin walks through Brale's new webhook product at Day Zero 06 — webhooks that publish signed lifecycle events as transfers settle, eliminating the need for clients to poll for status. The reference neobank app, built on the Brale stablecoin operating system, receives a transfer-completion event in roughly 18 seconds after a Solana transfer, then again on Spark, with signature verification, dedupe, and live balance + activity updates baked in. A single flexible transfer-request endpoint handles on-chain, off-chain, mint, RTP off-ramp, and cross-chain flows — and webhooks fire on the same event model for every variant. Closing pointer to a same-day blog post measuring a ~20% latency reduction versus polling-based integrations.