{"service":"Nebulous Agent Data API","payment":{"protocol":"x402","network":"eip155:8453"},"endpoints":[{"route":"GET /pulsechain/head","price":"$0.001","description":"Latest PulseChain block number and timestamp."},{"route":"GET /pulsechain/block-by-timestamp","price":"$0.002","description":"Resolve a Unix timestamp to the exact PulseChain block at or nearest that moment."},{"route":"POST /seal","price":"$1.00","description":"Notarize a document on-chain: permanent, independently verifiable proof that a SHA-256 hash existed at this moment. Send only the hash - the document never leaves your system. Returns a blockchain transaction receipt."}]}