{"slug":"icon-rpc","title":"ICON RPC endpoints: free public URLs by latency","subtitle":"HTTP round-trip latency for icx_getLastBlock queries against every available public ICON blockchain endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":59.2783,"leader":{"name":"ICON Foundation","slug":"icon-solidwallet","value":59.2783},"leaders":[{"name":"ICON Foundation","slug":"icon-solidwallet","value":59.2783}],"rankings":[{"name":"ICON Foundation","slug":"icon-solidwallet","ms":{"p50":59.2783,"p90":112.612,"p99":174.536,"mean":77.7512},"successRate":99.9768,"sampleSize":4318.15},{"name":"iconblockchain.xyz","slug":"iconblockchain","ms":{"p50":206.124,"p90":418.71,"p99":1645.96,"mean":281.573},"successRate":87.0544,"sampleSize":4319.14},{"name":"ICON Community","slug":"icon-community","ms":{"p50":231.504,"p90":596.154,"p99":839.08,"mean":299.276},"successRate":99.86110000000001,"sampleSize":4320.15}],"sparkline":[97.688,98.1066,101.398,100.32,102.268,97.9005,96.2492,93.2727,93.7246,105.767,107.142,107.928,96.3757,95.4477,94.408,95.2779,94.9093,95.4416,93.0755,92.4057,92.2052,93.739,95.2304,96.2855,108.86,109.479,109.538,98.0052,98.6451,98.5819,88.7737,75.8558,62.7952,60.7181,60.8078,62.4022,65.8026,67.2126,67.5559,69.2516,73.0358,76.8322,73.6514,72.5378,68.7074,66.0815,59.9437,59.7014,60.4053,67.9046,66.5506,67.1443,60.7381,61.9511,60.5036,61.5661,61.2534,61.3423,62.4679,63.9427,66.1949,66.7792,65.7051,64.4375,63.8468,62.3638,60.7336,60.3046,58.5895,58.8421,56.3472,56.4481,56.5172],"sampleSize":12957.439999999999,"asOf":"2026-10-16T23:32:16.257Z","freshness":{"asOf":"2026-10-16T23:32:16.257Z","ageHours":0,"stale":false},"measured":3,"ranked":3,"headline":"ICON Foundation has the lowest median latency of the 3 free public ICON RPC endpoints measured, 59 ms (p50, 24h, 3 regions).","quote":"ICON Foundation has the lowest median latency of the 3 free public ICON RPC endpoints measured, 59 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/icon-rpc).","cite":{"plain":"OpenChainBench. \"ICON RPC endpoints: free public URLs by latency\". Retrieved 2026-10-16. https://openchainbench.com/benchmarks/icon-rpc","bibtex":"@misc{ocb_icon_rpc,\n  author = {OpenChainBench},\n  title  = {ICON RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/icon-rpc},\n  note   = {Retrieved 2026-10-16}\n}","apa":"OpenChainBench. (2026). ICON RPC endpoints: free public URLs by latency. Retrieved October 16, 2026, from https://openchainbench.com/benchmarks/icon-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - ICON RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/icon-rpc\r\nY2  - 2026-10-16\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/icon-rpc","ogImage":"https://openchainbench.com/api/og/icon-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: POST /api/v3 with method icx_getLastBlock. The result.height field (decimal integer) is extracted as the current block height.","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 ICON-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to chain=icon. Provider coverage today: 3 endpoints."],"license":"CC-BY-4.0"}