{"slug":"union-rpc","title":"Union RPC endpoints: free public URLs by latency","subtitle":"HTTP round-trip latency for Tendermint /status queries against every available public Union (union-1) endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":98.4577,"leader":{"name":"Nodes.Guru","slug":"nodes-guru","value":98.4577},"leaders":[{"name":"Nodes.Guru","slug":"nodes-guru","value":98.4577}],"rankings":[{"name":"Nodes.Guru","slug":"nodes-guru","ms":{"p50":98.4577,"p90":116.415,"p99":218.094,"mean":108.099},"successRate":100,"sampleSize":4313.77},{"name":"Stake And Relax","slug":"stakeandrelax","ms":{"p50":112.788,"p90":146.896,"p99":358.182,"mean":127.186},"successRate":100,"sampleSize":4319.77}],"sparkline":[98.6291,98.7233,99.5488,99.3855,99.9507,99.1291,99.8993,100.086,100.1,99.4836,98.6306,99.1602,101.217,102.673,102.15,99.9133,98.3225,98.081,97.9622,99.4354,99.5152,100.485,100.625,100.951,101.989,101.549,101.078,100.79,99.4944,99.5336,99.63,99.644,99.2604,97.0336,97.0825,98.0622,99.2409,99.4717,99.0948,98.4955,100.259,101.411,102.66,109.036,120,130.348,127.843,122.442,116.389,116.318,116.337,119.735,120.456,123.843,120.194,118.975,114.912,114.855,115.622,114.85,124.044,124.452,124.397,115.898,116.041,116.356,115.769,117.529,117.87,117.762,114.981,122.005,122.913],"sampleSize":12947.310000000001,"asOf":"2026-10-13T21:58:19.906Z","freshness":{"asOf":"2026-10-13T21:58:19.906Z","ageHours":0.1,"stale":false},"measured":2,"ranked":2,"headline":"Nodes.Guru has the lowest median latency of the 2 free public Union RPC endpoints measured, 98 ms (p50, 24h, 3 regions).","quote":"Nodes.Guru has the lowest median latency of the 2 free public Union RPC endpoints measured, 98 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/union-rpc).","cite":{"plain":"OpenChainBench. \"Union RPC endpoints: free public URLs by latency\". Retrieved 2026-10-13. https://openchainbench.com/benchmarks/union-rpc","bibtex":"@misc{ocb_union_rpc,\n  author = {OpenChainBench},\n  title  = {Union RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/union-rpc},\n  note   = {Retrieved 2026-10-13}\n}","apa":"OpenChainBench. (2026). Union RPC endpoints: free public URLs by latency. Retrieved October 13, 2026, from https://openchainbench.com/benchmarks/union-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Union RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/union-rpc\r\nY2  - 2026-10-13\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/union-rpc","ogImage":"https://openchainbench.com/api/og/union-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: GET /status. The result.sync_info.latest_block_height field (string-encoded 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 Union-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to chain=union. Provider coverage today: 2 endpoints."],"license":"CC-BY-4.0"}