Signal402
x402-powered AI market intelligence for humans and autonomous agents.
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Description
Signal402 is a non-custodial market-intelligence layer for humans and autonomous agents. It ingests live public Polymarket data, provides a free probability preview, and uses x402 v2 payments with test USDC on Arbitrum Sepolia to unlock a structured AI report covering evidence, counterarguments, risks, assumptions, and an independent probability estimate. The production app is live at https://signal402.vercel.app. Signal402 does not custody funds or execute trades.
Progress During Hackathon
Rebuilt the prototype into Signal402: live Polymarket Gamma data; server-only DeepSeek with schema validation; an x402 v2 0.01 test-USDC gate on Arbitrum Sepolia using EIP-3009 and fail-closed settlement; tests proving AI failures never settle payment; tracked-file secret scanning; frontend, contract, and Go CI; and verified production deployment at https://signal402.vercel.app. Deployed the canonical Signal402Registry on Arbitrum Sepolia at 0xc896eb3b013a60deca7029dc2aa4f0da9a5faf82 (transaction: https://sepolia.arbiscan.io/tx/0x5af65b36f980448d63127b73120c6ab40a7b64a7a81cfa977bd8e710765d61f4), with Sourcify exact-match verification at https://repo.sourcify.dev/421614/0xc896eB3B013a60deCA7029dc2aa4F0da9a5faf82.
Fundraising Status
Bootstrapped; not currently fundraising.