{"$schema":"https://eips.ethereum.org/EIPS/eip-8004#agent-card","name":"xsignal","description":"x402-paid data ingredients for Base agents. Flagship: get_intent, an outcome-priced momentum verdict that ABSTAINS below your confidence bar. 3 free calls per wallet, then from $0.01 USDC. Verify-only; never signs or moves funds.","url":"https://xsignal-production.up.railway.app","mcp":{"endpoint":"https://xsignal-production.up.railway.app/mcp","transport":"streamable-http"},"skills":[{"id":"base-preflight","primary":true,"name":"Base token preflight (safety + momentum)","description":"One call fuses MainStreet on-chain SAFETY (SAFE/WATCH/AVOID + rug flags) with xsignal MOMENTUM into a single recommendation (GO / CAUTION / AVOID / NEUTRAL) - is this token safe to touch AND moving? Safety gates momentum. x402-paid at /preflight ($0.05; 3 free per wallet via ?wallet=0x…). Not financial advice.","endpoint":"https://xsignal-production.up.railway.app/preflight","method":"GET","pricing":{"scheme":"x402-exact","amount":"0.05","currency":"USDC","network":"eip155:8453"},"tags":["x402","preflight","safety","momentum","base","rug-check"]},{"id":"intent-momentum","name":"Outcome-priced momentum intent (abstains)","description":"The only x402 signal that ABSTAINS below your confidence bar. Post {addr, min_confidence} → pay a flat fee, then a mechanical momentum verdict (gaining/fading) if confidence clears your bar, else a calibrated abstain. Paid answers carry a keyless tamper-evidence receipt. x402-paid at /intent (from $0.01; 3 free per wallet via ?wallet=0x…).","endpoint":"https://xsignal-production.up.railway.app/intent","method":"GET","pricing":{"scheme":"x402-exact","amount":"0.01","currency":"USDC","network":"eip155:8453"},"tags":["x402","intent","outcome-priced","abstain","base","momentum"]},{"id":"token-brief","name":"Fused token brief (meal)","description":"One call fuses Base token market intel + real-time social signal into a \"what is happening with $TOKEN now\" brief (market flags + cited top posts + a non-advisory summary). x402-paid at /brief ($0.05; 3 free per wallet via ?wallet=0x…).","endpoint":"https://xsignal-production.up.railway.app/brief","method":"GET","pricing":{"scheme":"x402-exact","amount":"0.05","currency":"USDC","network":"eip155:8453"},"tags":["x402","brief","meal","base","token","signal"]},{"id":"real-time-signal","name":"Real-time X/social signal","description":"Fresh, scored (virality+freshness), cited social signal for a topic. x402-paid at /signal (from $0.01 USDC on Base; 3 free per wallet via ?wallet=0x…).","endpoint":"https://xsignal-production.up.railway.app/signal","method":"GET","pricing":{"scheme":"x402-exact","amount":"0.01","currency":"USDC","network":"eip155:8453"},"tags":["x402","signal","x","social","realtime","base"]},{"id":"token-market-intel","name":"Base token market intel","description":"Liquidity/volume/price/age/buy-sell flow + mechanical flags for a Base token (market data, NOT a trust rating). Best as an input to the brief. x402-paid at /token ($0.01; 3 free per wallet via ?wallet=0x…).","endpoint":"https://xsignal-production.up.railway.app/token","method":"GET","pricing":{"scheme":"x402-exact","amount":"0.01","currency":"USDC","network":"eip155:8453"},"tags":["x402","token","base","defi","market-data"]}],"payment":{"protocol":"x402","network":"base","asset":"USDC","payTo":"0xAC3ca7c5d3cDD7702fd08F9C4C28dAA22296aDa9"},"safety":{"descriptorOnly":true,"signsFunds":false}}