# RadhikaChain / RadhikaAtmosphere > Decentralized infrastructure, threat intelligence, x402 paid API, MPP payments. ## Public API - /api/v1/ — main API (x402 Payment Required for paid resources) - /openapi.json — OpenAPI schema (machine-readable) - /llms.txt — this file ## Paid Resources (x402) - /mpp/ — MPP: Multi-Party Payments (USDC/BTC/RADHA) - /x402/ — x402 gate (EIP-3009, Base USDC, Coinbase CDP) - /defensa — live threat intelligence (XDP/eBPF sensor) - /jyotish/ — sidereal astrology chart (paid) - /tarot/ — tarot premium (paid) ## Public Endpoints (free) - / — landing multilingual (EN/ES/ZH/JA) - /docs/ — documentation - /explorer/ — block explorer - /shield-map/ — threat map - /sitemap.xml — sitemap - /robots.txt — crawling rules - /openapi.json — API schema ## Payment - x402 protocol: EIP-3009 signed payment to facilitator - MPP: /mpp/recursos/{resource} - Supported: USDC (Base), BTC (mesh), PRANA/RADHA native - Facilitator: Coinbase CDP (internal), Solana direct ## Docs - /docs/ — full docs - /explorer/ — chain data ## Security - Rate limits: 50r/s public, 100r/s MPP, 200r/s API - Auth: service-token via /api/v1/auth/token - x402 PaymentRequired: 402 + JSON schema - WireGuard mesh for internal services (10.100.0.0/24) - No public DNS for: :8116, :3100, :3110, :4020, :5000 ## Chat - https://t.me/radhikachain — Telegram