{"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":14.9344,"leader":{"name":"Acala (RPC-2)","slug":"acala-rpc2","value":14.9344},"leaders":[{"name":"Acala (RPC-2)","slug":"acala-rpc2","value":14.9344}],"rankings":[{"name":"Acala (RPC-2)","slug":"acala-rpc2","ms":{"p50":14.9344,"p90":175.276,"p99":302.362,"mean":65.8343},"successRate":100,"sampleSize":4322.79},{"name":"Acala (RPC-0)","slug":"acala-rpc0","ms":{"p50":34.7788,"p90":178.545,"p99":256.482,"mean":67.8412},"successRate":100,"sampleSize":4310.79},{"name":"Dwellir","slug":"dwellir","ms":{"p50":443.116,"p90":472.866,"p99":533.207,"mean":404.676},"successRate":100,"sampleSize":4318.79}],"sparkline":[78.5566,76.8523,70.2352,56.2898,59.0868,72.2093,70.7897,68.312,64.9757,68.9053,97.6736,101.818,104.487,74.2728,74.441,74.3571,76.507,63.4331,63.6001,65.2989,67.3243,60.439,51.8193,46.2633,51.8176,59.2988,67.4662,67.848,69.9862,66.6362,65.7841,70.1504,67.1529,66.3235,62.9647,79.2398,98.3063,94.356,92.5661,79.5189,85.6534,77.4964,75.5946,72.9963,67.0366,64.0829,60.9448,64.319,61.656,66.2373,62.3008,56.6718,50.8795,55.4119,60.9112,56.5508,51.9495,47.752,46.3267,43.6566,42.4342,48.1562,51.2341,60.2121,57.9451,60.9915,56.6975,63.2396,65.3318,66.8305,63.5851,63.9708,62.6919],"sampleSize":12952.369999999999,"asOf":"2026-10-10T04:46:48.793Z","freshness":{"asOf":"2026-10-10T04:46:48.793Z","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, 15 ms (p50, 24h, 3 regions).","quote":"Acala (RPC-2) has the lowest median latency of the 3 free public Acala RPC endpoints measured, 15 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 2026-10-10. 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 2026-10-10}\n}","apa":"OpenChainBench. (2026). Acala RPC endpoints: free public URLs by latency. Retrieved October 10, 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  - 2026-10-10\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"}