{"slug":"oasis-sapphire-rpc","title":"Oasis Sapphire RPC endpoints: free public URLs by latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Oasis Sapphire RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":123.496,"leader":{"name":"Oasis Foundation","slug":"oasis-official","value":123.496},"leaders":[{"name":"Oasis Foundation","slug":"oasis-official","value":123.496}],"rankings":[{"name":"Oasis Foundation","slug":"oasis-official","ms":{"p50":123.496,"p90":183.245,"p99":284.846,"mean":130.915},"successRate":99.9768,"sampleSize":4318.71}],"sparkline":[181.795,179.047,172.5,171.451,176.149,179.322,184.152,184.108,184.072,182.814,182.419,185.872,187.574,188.391,185.047,182.984,178.466,169.732,158.464,153.052,152.264,154.256,155.074,140.898,123.121,111.939,115.962,115.732,119.282,124.383,140.528,144.667,140.501,131.674,124.56,122.869,121.771,121.392,151.832,147.795,142.355,106.16,107.887,105.919,107.051,103.266,103.739,104.384,106.122,112.89,115.99,119.419,118.02,117.523,114.568,106.361,98.3495,93.6126,93.6339,90.2749,84.3906,79.3133,85.8914,95.6825,106.737,110.343,109.81,108.362,105.742,107.387,105.35,105.158,102.427],"sampleSize":4318.71,"asOf":"2026-10-08T10:17:17.557Z","freshness":{"asOf":"2026-10-08T10:17:17.557Z","ageHours":0.1,"stale":false},"measured":1,"ranked":1,"headline":"Oasis Foundation is the only free public Oasis Sapphire RPC endpoint measured, at 123 ms (p50, 24h, 3 regions).","quote":"Oasis Foundation is the only free public Oasis Sapphire RPC endpoint measured, at 123 ms (p50, 24h, 3 regions). Source: OpenChainBench (https://openchainbench.com/benchmarks/oasis-sapphire-rpc).","cite":{"plain":"OpenChainBench. \"Oasis Sapphire RPC endpoints: free public URLs by latency\". Retrieved 2026-10-08. https://openchainbench.com/benchmarks/oasis-sapphire-rpc","bibtex":"@misc{ocb_oasis_sapphire_rpc,\n  author = {OpenChainBench},\n  title  = {Oasis Sapphire RPC endpoints: free public URLs by latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/oasis-sapphire-rpc},\n  note   = {Retrieved 2026-10-08}\n}","apa":"OpenChainBench. (2026). Oasis Sapphire RPC endpoints: free public URLs by latency. Retrieved October 8, 2026, from https://openchainbench.com/benchmarks/oasis-sapphire-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Oasis Sapphire RPC endpoints: free public URLs by latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/oasis-sapphire-rpc\r\nY2  - 2026-10-08\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/oasis-sapphire-rpc","ogImage":"https://openchainbench.com/api/og/oasis-sapphire-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 Oasis Sapphire-scoped view of the same harness, with the same exclusion rules.","Chain scope: every query on this page is pinned to `chain=\"oasis-sapphire\"`. Provider coverage today: 1 no-key endpoints (Oasis Foundation)."],"license":"CC-BY-4.0"}