{"slug":"iotex-rpc","title":"IoTeX RPC endpoints: free public URLs by latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public IoTeX RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":157.902,"leader":{"name":"IoTeX Foundation","slug":"iotex-official","value":157.902},"leaders":[{"name":"IoTeX Foundation","slug":"iotex-official","value":157.902},{"name":"IoTeX Mirror","slug":"iotex-mirror","value":158.48}],"rankings":[{"name":"IoTeX Foundation","slug":"iotex-official","value":157.902,"unit":"ms","ms":{"p50":157.902,"p90":202.507,"p99":630.642,"mean":174.365},"successRate":98.14659999999999,"sampleSize":4318.29},{"name":"IoTeX Mirror","slug":"iotex-mirror","value":158.48,"unit":"ms","ms":{"p50":158.48,"p90":185.446,"p99":309.957,"mean":163.926},"successRate":99.398,"sampleSize":4320.26}],"sparkline":[155.604,158.029,157.507,159.119,159.702,162.689,167.923,176.378,184.677,189.222,189.454,192.265,189.53,189.48,183.146,180.34,172.548,169.202,170.089,171.547,174.561,175.585,177.102,175.862,176.496,181.245,181.552,178.821,171.674,170.291,169.472,167.425,162.636,158.378,156.002,158.4,162.065,164.712,161.526,158.814,157.266,160.844,160.49,160.807,159.765,161.05,213.675,357.287,494.171,539.531,612.287,458.929,237.978,147.782,136.898,138.199,138.362,140.796,142.005,141.762,140.854,140.007,139.778,139.419,145.251,144.033,149.17,140.833,142.448,137.307,136.768,134.122,131.97],"sampleSize":12955.810000000001,"asOf":"2026-11-03T12:26:53.442Z","freshness":{"asOf":"2026-11-03T12:26:53.442Z","ageHours":0.1,"stale":false},"measured":2,"ranked":2,"headline":"IoTeX Foundation has the lowest median latency of the 2 free public IoTeX RPC endpoints measured, 158 ms (p50, 24h, 3 regions).","quote":"IoTeX Foundation has the lowest median latency of the 2 free public IoTeX RPC endpoints measured, 158 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/iotex-rpc).","cite":{"plain":"OpenChainBench. \"IoTeX RPC endpoints: free public URLs by latency\". Retrieved 2026-11-03. https://openchainbench.com/benchmarks/iotex-rpc","bibtex":"@misc{ocb_iotex_rpc,\n  author = {OpenChainBench},\n  title  = {IoTeX RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/iotex-rpc},\n  note   = {Retrieved 2026-11-03}\n}","apa":"OpenChainBench. (2026). IoTeX RPC endpoints: free public URLs by latency. Retrieved November 3, 2026, from https://openchainbench.com/benchmarks/iotex-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - IoTeX RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/iotex-rpc\r\nY2  - 2026-11-03\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/iotex-rpc","ogImage":"https://openchainbench.com/api/og/iotex-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, identical for every endpoint, no API key in any request.","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 IoTeX-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to `chain=\"iotex\"`. Provider coverage today: 2 no-key endpoints."],"license":"CC-BY-4.0"}