{"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":149.195,"leader":{"name":"Merlin Official","slug":"merlin-official","value":149.195},"leaders":[{"name":"Merlin Official","slug":"merlin-official","value":149.195}],"rankings":[{"name":"Merlin Official","slug":"merlin-official","ms":{"p50":149.195,"p90":160.644,"p99":181.957,"mean":152.014},"successRate":100,"sampleSize":4310.45},{"name":"dRPC","slug":"drpc","ms":{"p50":327.577,"p90":514.746,"p99":748.174,"mean":368.947},"successRate":65.45609999999999,"sampleSize":4319.57}],"sparkline":[143.375,143.617,144.1,145.078,145.393,145.083,149.048,148.973,149.532,145.033,146.678,148.554,148.633,147.275,145.158,144.396,144.139,143.83,144.832,144.936,145.107,146.042,146.583,147.979,147.937,148.544,148.691,150.97,151.685,151.747,150.353,150.4,151.097,150.831,151.155,151.755,152.773,152.997,152.422,151.656,152.582,152.61,153.42,152.315,151.862,151.205,151.474,152.158,152.027,152.47,152.425,153.391,153.634,154.371,156.782,157.445,158.273,156.401,156.078,156.147,156.283,162.894,167.164,172.211,171.702,167.088,161.924,158.87,157.132,155.893,151.07,151.364,151.078],"sampleSize":12943.470000000001,"asOf":"2026-10-05T21:40:50.432Z","freshness":{"asOf":"2026-10-05T21:40:50.432Z","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, 149 ms (p50, 24h, 3 regions).","quote":"Merlin Official has the lowest median latency of the 2 free public Merlin Chain RPC endpoints measured, 149 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 2026-10-05. 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 2026-10-05}\n}","apa":"OpenChainBench. (2026). Merlin Chain RPC endpoints: free public URLs by latency. Retrieved October 5, 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  - 2026-10-05\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"}