{"slug":"horizon-pulse-762338b5","name":"Horizon Pulse","summary":"Block height API: current block number, slot or ledger index for Base, Polygon, Ethereum, Solana and XRPL in one GET. Optional network (comma list; default all five). Per network: chainId, height, headTime, headAgeSeconds, finalizedHeight and finalityGap (EVM finalized tag, Solana finalized slot, XRPL validated ledger). Free public RPCs, read-only. Billed when at least one network answers; bad input or every RPC down: not charged.","status":"live","indexable":true,"listed_since":"2026-10-25T17:51:17.129907Z","sources":[{"source":"x402_bazaar","external_id":"https://horizonpulse.dev/api/chain/head","owner_address":"0x5b32c973596078a967562ca652761404f19be0e9","seen_at":"2026-10-26T05:59:44.589998Z","removed_at":null}],"endpoints":[{"url":"https://horizonpulse.dev/api/chain/head","host":"horizonpulse.dev","protocol":"x402","state":"live","last_probe_at":"2026-10-25T20:10:57.138680Z","last_ok_at":"2026-10-25T20:10:57.138680Z","tools_count":null,"tools_changed_at":null,"uptime_24h":1.0,"uptime_30d":1.0}],"also_listed_as":[{"slug":"horizonpulse-dev-b8bce72b","name":"horizonpulse.dev"}],"payment_options":[],"usage":{"source":"x402_bazaar","unique_payers_30d":5,"paid_calls_30d":5,"last_paid_at":"2026-10-25T20:39:06.937Z","reported_at":"2026-10-26T05:59:44.589998Z"},"notice":"Not affiliated with addrbook — claim or request removal."}