{"version":1,"resources":["https://signals.facts402.com/v1/signals/feed","https://signals.facts402.com/v1/signals/token","https://signals.facts402.com/v1/signals/wallet","https://signals.facts402.com/v1/signals/leaderboard","https://signals.facts402.com/v1/signals/brief"],"instructions":"Base Smart Money Signals tracks wallets that profit on Base token launches. Payment: x402 v2, USDC on Base. Call without payment to get HTTP 402 with the PAYMENT-REQUIRED header, sign it with any x402 v2 client and retry with PAYMENT-SIGNATURE. Unpaid calls always get the 402 quote; with a payment attached, invalid input is a 400 before payment and you are only charged for a 2xx answer. Poll GET /v1/signals/feed?since=<next_cursor> for new signals (keep the returned cursor); POST /v1/signals/token with {\"token\": \"0x...\"} for smart-money flow on one token; GET /v1/signals/wallet?address=0x... for a wallet profile; GET /v1/signals/leaderboard?period=7d|30d; POST /v1/signals/brief with token and horizon (1h/24h/7d) for an analyst brief combining Guard, Pulse and smart money. Warm-up: until enough live data and scored smart wallets exist (see /v1/signals/preview), a request that carries a payment gets 503 {warming_up: true} before the payment is used (never charged); unpaid requests still get the 402 price quote. Free: GET /v1/signals/performance (public track record) and /v1/signals/preview. Full contract: https://signals.facts402.com/openapi.json (OpenAPI 3.1, x-payment-info on every paid operation); agent guide with example calls: https://signals.facts402.com/llms.txt.","x402Version":2,"items":[{"resource":"https://signals.facts402.com/v1/signals/feed","type":"http","x402Version":2,"method":"GET","description":"Use when an agent wants smart money signals on Base: SMART_ACCUMULATION, EARLY_SMART_ENTRY, SMART_EXIT and ATTENTION_CONFIRMED, each with the wallets (PnL, win rate), a rug/honeypot verdict and a 0-100 score. Supports polling with a since cursor; up to 50 signals per call. $0.15 USDC on Base; invalid input is a 400 before payment; charged only on 2xx.","mimeType":"application/json","serviceName":"Base Smart Money Signals","tags":["smart money","smart money signals","copy trading","whale tracking","early entry signals"],"iconUrl":"https://signals.facts402.com/icon.png","price":{"mode":"fixed","currency":"USD","amount":"0.150000"},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"150000","payTo":"0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}]},{"resource":"https://signals.facts402.com/v1/signals/token","type":"http","x402Version":2,"method":"POST","description":"Use when an agent needs to know if smart money holds a Base token: smart wallets (profitable launch traders) holding it, their net USD flow over 1h and 24h, every smart entry (wallet, time, size, price), average smart entry price vs now, rug status and latest signals. $0.10 USDC on Base; invalid input is a 400 before payment; charged only on 2xx.","mimeType":"application/json","serviceName":"Base Token Smart Money Flow","tags":["smart money flow","smart wallet holders","whale tracker","smart money entries","token due diligence"],"iconUrl":"https://signals.facts402.com/icon.png","price":{"mode":"fixed","currency":"USD","amount":"0.100000"},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"100000","payTo":"0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}]},{"resource":"https://signals.facts402.com/v1/signals/wallet","type":"http","x402Version":2,"method":"GET","description":"Use when an agent needs to judge a Base wallet before copying or trusting it: realized and unrealized PnL over 7d/30d/90d, win rate, launches traded, style (scalper/day/swing/holder, sniper), bot and sniper flags, rug exposure, open positions and score history. $0.05 USDC on Base; invalid input is a 400 before payment; charged only on 2xx.","mimeType":"application/json","serviceName":"Base Wallet PnL Profile","tags":["wallet pnl","wallet profiler","smart money wallet","whale wallet","copy trade check"],"iconUrl":"https://signals.facts402.com/icon.png","price":{"mode":"fixed","currency":"USD","amount":"0.050000"},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"50000","payTo":"0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}]},{"resource":"https://signals.facts402.com/v1/signals/leaderboard","type":"http","x402Version":2,"method":"GET","description":"Use when an agent wants Base wallets worth following: top 50 smart money wallets by PnL over 7d or 30d, with win rate, launches traded and wallet score; bots and pure snipers excluded. For copy trading and whale tracking. $0.10 USDC on Base; invalid input is a 400 before payment; charged only on 2xx.","mimeType":"application/json","serviceName":"Base Smart Money Leaderboard","tags":["smart money leaderboard","top traders","profitable wallets","whale wallets","top wallets"],"iconUrl":"https://signals.facts402.com/icon.png","price":{"mode":"fixed","currency":"USD","amount":"0.100000"},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"100000","payTo":"0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}]},{"resource":"https://signals.facts402.com/v1/signals/brief","type":"http","x402Version":2,"method":"POST","description":"Use when an agent wants one pre-trade view of a Base token: Guard safety (honeypot, rug pull, taxes, exit liquidity), social attention and smart money combined into avoid/watch/consider, confidence, key risks and positives with evidence, for 1h, 24h or 7d. Guard DANGER always means avoid. $0.25 USDC on Base; invalid input is a 400 before payment; charged only on 2xx.","mimeType":"application/json","serviceName":"Base Token Analyst Brief","tags":["token analysis","pre-trade check","memecoin research","rug check","token risk view"],"iconUrl":"https://signals.facts402.com/icon.png","price":{"mode":"fixed","currency":"USD","amount":"0.250000"},"accepts":[{"scheme":"exact","network":"eip155:8453","asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","amount":"250000","payTo":"0x5498b0Aa90cd56F8962CBd136DF3D3769C85f149","maxTimeoutSeconds":300,"extra":{"name":"USD Coin","version":"2"}}]}]}