{"ok":true,"name":"x402donghang Agent APIs","origin":"https://x402donghang.duckdns.org","base":"/x402","policy":{"free":"Fixed scenarios on /sample paths and catalogs; shared hourly cache; no wallet.","paid":"Two payment modes: (1) API Key — prepaid balance, no wallet needed, auto-debited per call; (2) x402 onchain — unpaid POST returns HTTP 402, pay USDC on Base or Solana and retry.","api_key":{"header":"Authorization: Bearer sk-x402-...","balance_endpoint":"/x402/v1/apikey/balance","deposit_policy":"Operator-verified credit only; clients cannot credit their own balance.","note":"Funds are reserved before a paid call and automatically refunded for non-2xx responses. Insufficient balance returns 402."},"sample_methods":["GET","POST"],"sample_note":"POST body on sample paths is ignored; response is the same cached demo as GET."},"free":{"info":"/x402/v1/info","health":"/x402/health","samples":"/x402/v1/samples","models":"/x402/v1/models","openapi":"/openapi.json","manifest":"/.well-known/x402","landing":"/x402/","integrate":"/x402/integrate","demos":[{"product":"crypto-radar","sample":"/x402/v1/crypto-radar/sample","paid":"/x402/v1/crypto-radar","price":"$0.02","tip":"Best free hook — BTC/6h narrative radar"},{"product":"crypto-brief","sample":"/x402/v1/crypto-brief/sample","paid":"/x402/v1/crypto-brief","price":"$0.01"},{"product":"chat","sample":null,"paid":"/x402/v1/chat/completions","price":"$0.001","tip":"Retired (410 Gone). Use the live crypto-data catalog."},{"product":"crypto-radar-lite","sample":"/x402/v1/crypto-radar/sample","paid":"/x402/v1/crypto-radar/lite","price":"$0.008","tip":"Fast market-snapshot quick take, ~3s, cheap for per-minute loops"},{"product":"summarize","sample":"/x402/v1/summarize/sample","paid":"/x402/v1/summarize","price":"$0.01"},{"product":"watchlist-brief","sample":"/x402/v1/watchlist-brief/sample","paid":"/x402/v1/watchlist-brief","price":"$0.05","tip":"Bulk multi-ticker snapshot in one call"},{"product":"single-brief","sample":"/x402/v1/single-brief/sample","paid":"/x402/v1/single-brief","price":"$0.005","tip":"Cheapest crypto brief — per-token loops"},{"product":"token-dd","sample":"/x402/v1/token-dd/sample","paid":"/x402/v1/token-dd","price":"$0.01","tip":"Risk card: score, liquidity, concentration, verdict"},{"product":"crypto-intel","sample":"/x402/v1/crypto-intel/sample","paid":"/x402/v1/crypto-intel","price":"$0.05","tip":"Funding + liquidation + sentiment in one call"},{"product":"image-gen","sample":null,"paid":"/x402/v1/image-gen","price":"$0.05","tip":"Retired (410 Gone). Use the live crypto-data catalog."},{"product":"video-gen","sample":null,"paid":"/x402/v1/video-gen","price":"$0.99","tip":"Retired (410 Gone). Use the live crypto-data catalog."}]},"paid":{"networks":["eip155:8453","solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp"],"asset":"USDC","products":[{"name":"crypto-radar","path":"/x402/v1/crypto-radar","method":"POST","price":"$0.02","blurb":"Live X+web crypto narrative radar with sources"},{"name":"crypto-brief","path":"/x402/v1/crypto-brief","method":"POST","price":"$0.01","blurb":"Structured bilingual crypto brief"},{"name":"summarize","path":"/x402/v1/summarize","method":"POST","price":"$0.01","blurb":"URL/text structured summary"},{"name":"watchlist-brief","path":"/x402/v1/watchlist-brief","method":"POST","price":"$0.05","blurb":"Bulk multi-ticker crypto briefs in one call"},{"name":"single-brief","path":"/x402/v1/single-brief","method":"POST","price":"$0.005","blurb":"Single-symbol micro-priced crypto brief"},{"name":"token-dd","path":"/x402/v1/token-dd","method":"POST","price":"$0.01","blurb":"Structured token due-diligence risk card"},{"name":"crypto-intel","path":"/x402/v1/crypto-intel","method":"POST","price":"$0.05","blurb":"Funding + liquidation + sentiment intelligence"},{"name":"chat","path":"/x402/v1/chat/completions","method":"POST","price":"$0.001","blurb":"Retired (410 Gone). Use the live crypto-data catalog."},{"name":"image-gen","path":"/x402/v1/image-gen","method":"POST","price":"$0.05","blurb":"Retired (410 Gone). Use the live crypto-data catalog."},{"name":"video-gen","path":"/x402/v1/video-gen","method":"POST","price":"$0.99","blurb":"Retired (410 Gone). Use the live crypto-data catalog."}]},"start_here":{"free_sample":"https://x402donghang.duckdns.org/x402/v1/crypto-radar/sample","info":"https://x402donghang.duckdns.org/x402/v1/info","paid_radar":"https://x402donghang.duckdns.org/x402/v1/crypto-radar"}}