{"slug":"merlin-rpc","title":"Fastest free Merlin Chain RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every available public Merlin Chain node, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":16.3746,"leader":{"name":"BlockPI","slug":"blockpi","value":16.3746},"rankings":[{"name":"BlockPI","slug":"blockpi","ms":{"p50":16.3746,"p90":146.662,"p99":209.105,"mean":37.5177},"successRate":100,"sampleSize":556.69},{"name":"Merlin Official","slug":"merlin-official","ms":{"p50":133.594,"p90":583.954,"p99":3238.07,"mean":326.132},"successRate":99.9309,"sampleSize":1452.69},{"name":"dRPC","slug":"drpc","ms":{"p50":376.892,"p90":533.171,"p99":666.052,"mean":421.028},"successRate":84.6679,"sampleSize":1461.69}],"sparkline":[56.4117,40.2204,43.2465,37.4055,35.3181,29.8593,32.7747,35.9882,38.5106,39.4622],"sampleSize":3471.07,"asOf":"2026-08-19T18:34:46.259Z","headline":"BlockPI leads rpc latency at 16 ms (p50, 24h) on Fastest free Merlin Chain RPC, live no-key endpoint latency.","quote":"BlockPI leads rpc latency at 16 ms (p50, 24h) on Fastest free Merlin Chain RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/merlin-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Merlin Chain RPC, live no-key endpoint latency\". Retrieved 2026-08-21. https://openchainbench.com/benchmarks/merlin-rpc","bibtex":"@misc{ocb_merlin_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Merlin Chain RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/merlin-rpc},\n  note   = {Retrieved 2026-08-21}\n}","apa":"OpenChainBench. (2026). Fastest free Merlin Chain RPC, live no-key endpoint latency. Retrieved August 21, 2026, from https://openchainbench.com/benchmarks/merlin-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Merlin Chain RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/merlin-rpc\r\nY2  - 2026-08-21\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/merlin-rpc","ogImage":"https://openchainbench.com/api/og/merlin-rpc","source":"https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities","methodology":["Cadence: every 60 seconds per provider, from each of 3 probe regions (us-east Virginia, eu-west Amsterdam, sgp Singapore). Headline p50/p90/p99 aggregate across all 3 regions via Prometheus avg(quantile_over_time(...)); per-region breakdowns are first-class on this page via the region tabs.","Payload: {\"jsonrpc\":\"2.0\",\"id\":<rotating>,\"method\":\"eth_getBlockByNumber\",\"params\":[\"latest\",false]}. Plain HTTP POST. Standard Ethereum JSON-RPC 2.0.","Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms to 10 s), so percentiles are computed via Prometheus quantile_over_time over the last 24 hours.","Call-result classification: ok (HTTP 200 + parsable block number), http_err, jsonrpc_err, stale, timeout. Latency without reliability is a misleading ranking signal.","This page is part of the per-chain RPC cluster derived from the cross-chain rpc-capabilities benchmark; the identical harness, cadence and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to chain=merlin. Provider coverage at launch: 3 endpoints (Merlin Official, dRPC, BlockPI)."],"license":"CC-BY-4.0"}