{"slug":"merlin-rpc","title":"Merlin Chain RPC endpoints: free public URLs by 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":151.665,"leader":{"name":"Merlin Official","slug":"merlin-official","value":151.665},"leaders":[{"name":"Merlin Official","slug":"merlin-official","value":151.665}],"rankings":[{"name":"Merlin Official","slug":"merlin-official","ms":{"p50":151.665,"p90":162.275,"p99":218.286,"mean":155.469},"successRate":100,"sampleSize":4316.72},{"name":"dRPC","slug":"drpc","ms":{"p50":350.332,"p90":459.286,"p99":678.1,"mean":352.985},"successRate":87.5895,"sampleSize":4319.72}],"sparkline":[150.592,150.498,150.322,149.841,149.561,149.666,149.947,150.379,150.563,150.641,150.895,150.93,151.059,150.973,151.303,151.502,151.057,152.384,152.332,152.714,151.418,151.152,150.795,151.085,151.681,152.578,152.96,153.131,153.293,153.35,153.292,153.28,153.72,154.699,155.808,156.312,157.331,156.995,156.166,155.736,155.78,156.326,156.141,156.563,157.215,157.438,156.87,156.499,156.209,156.423,155.473,155.353,155.45,172.625,207.357,206,188.071,152.445,152.87,153.199,152.866,153.225,153.025,154.114,153.349,153.769,153.059,152.255,151.482,151.343,152.606,152.948,152.67],"sampleSize":12954.16,"asOf":"2026-10-07T00:50:47.673Z","freshness":{"asOf":"2026-10-07T00:50:47.673Z","ageHours":0.1,"stale":false},"measured":2,"ranked":2,"headline":"Merlin Official has the lowest median latency of the 2 free public Merlin Chain RPC endpoints measured, 152 ms (p50, 24h, 3 regions).","quote":"Merlin Official has the lowest median latency of the 2 free public Merlin Chain RPC endpoints measured, 152 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/merlin-rpc).","cite":{"plain":"OpenChainBench. \"Merlin Chain RPC endpoints: free public URLs by latency\". Retrieved 2026-10-07. https://openchainbench.com/benchmarks/merlin-rpc","bibtex":"@misc{ocb_merlin_rpc,\n  author = {OpenChainBench},\n  title  = {Merlin Chain RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/merlin-rpc},\n  note   = {Retrieved 2026-10-07}\n}","apa":"OpenChainBench. (2026). Merlin Chain RPC endpoints: free public URLs by latency. Retrieved October 7, 2026, from https://openchainbench.com/benchmarks/merlin-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Merlin Chain RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/merlin-rpc\r\nY2  - 2026-10-07\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 measurement, call-result classification (`ok`, `http_err`, `jsonrpc_err`, `stale`, `timeout`) and the archive-depth audit follow the cluster method documented on [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities#methodology); this page is the Merlin Chain-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to chain=merlin. Provider coverage today: 2 endpoints."],"license":"CC-BY-4.0"}