{"slug":"acala-rpc","title":"Acala RPC endpoints: free public URLs by latency","subtitle":"HTTP round-trip latency for Substrate chain_getHeader queries against every available public Acala endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":52.8063,"leader":{"name":"Acala (RPC-2)","slug":"acala-rpc2","value":52.8063},"leaders":[{"name":"Acala (RPC-2)","slug":"acala-rpc2","value":52.8063},{"name":"Acala (RPC-0)","slug":"acala-rpc0","value":53.1857}],"rankings":[{"name":"Acala (RPC-2)","slug":"acala-rpc2","ms":{"p50":52.8063,"p90":88.5448,"p99":173.308,"mean":61.484},"successRate":100,"sampleSize":4320.74},{"name":"Acala (RPC-0)","slug":"acala-rpc0","ms":{"p50":53.1857,"p90":87.2008,"p99":217.813,"mean":63.7623},"successRate":100,"sampleSize":4317.74},{"name":"Dwellir","slug":"dwellir","ms":{"p50":438.109,"p90":450.815,"p99":494.851,"mean":389.453},"successRate":100,"sampleSize":4319.74}],"sparkline":[73.5711,73.1747,72.6638,69.7918,63.1134,59.0021,56.9564,59.4237,63.777,68.9817,67.3584,65.2648,63.9092,64.1321,64.8826,61.4266,61.5357,60.8602,62.744,61.24,58.9049,59.8699,62.0826,62.738,61.3568,58.2201,58.3011,58.1905,58.1155,58.7691,59.7239,59.2929,59.5723,59.9255,63.8795,62.5841,60.1638,61.5216,60.3507,57.3559,48.1981,46.827,50.8273,55.1535,56.5886,54.4284,59.6415,58.9281,61.7252,56.206,58.5431,58.4054,59.9075,59.8115,60.4703,59.8755,61.4358,63.5812,62.7965,58.8194,56.3378,56.4284,75.03,74.3309,73.6261,59.4043,55.7174,60.149,62.5872,70.6498,75.8056,72.5956,68.6574],"sampleSize":12958.22,"asOf":"2026-10-12T23:15:50.793Z","freshness":{"asOf":"2026-10-12T23:15:50.793Z","ageHours":0.1,"stale":false},"measured":3,"ranked":3,"headline":"Acala (RPC-2) has the lowest median latency of the 3 free public Acala RPC endpoints measured, 53 ms (p50, 24h, 3 regions).","quote":"Acala (RPC-2) has the lowest median latency of the 3 free public Acala RPC endpoints measured, 53 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/acala-rpc).","cite":{"plain":"OpenChainBench. \"Acala RPC endpoints: free public URLs by latency\". Retrieved 2026-10-12. https://openchainbench.com/benchmarks/acala-rpc","bibtex":"@misc{ocb_acala_rpc,\n  author = {OpenChainBench},\n  title  = {Acala RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/acala-rpc},\n  note   = {Retrieved 2026-10-12}\n}","apa":"OpenChainBench. (2026). Acala RPC endpoints: free public URLs by latency. Retrieved October 12, 2026, from https://openchainbench.com/benchmarks/acala-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Acala RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/acala-rpc\r\nY2  - 2026-10-12\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/acala-rpc","ogImage":"https://openchainbench.com/api/og/acala-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\":\"chain_getHeader\",\"params\":[]}. The result contains a number field (hex-encoded block number).","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 Acala-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to chain=acala. Provider coverage today: 3 endpoints (Dwellir, Acala RPC-0, Acala RPC-2)."],"license":"CC-BY-4.0"}