{"slug":"oasis-sapphire-rpc","title":"Fastest free Oasis Sapphire RPC, live no-key endpoint 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":222,"leader":{"name":"Oasis Foundation","slug":"oasis-official","value":222},"rankings":[{"name":"Oasis Foundation","slug":"oasis-official","ms":{"p50":222,"p90":257,"p99":345,"mean":222.875},"successRate":100,"sampleSize":4320.6}],"sparkline":[231.818,231.722,239.529,243.106,252.55,245.488,242.754,234.199,233.374,231.574,231.643,234.287,236.36,233.586,228.932,225.511,224.981,224.313,223.171,222.661,222.015,226.217,225.728,224.939,221.742,223.715,224.315,225.167,225.733,229.224,226.534,223.511,226.617,232.308,235.767,230.101,226.386,223.1,229.949,227.803,228.976,221.89,223.628,224.371,224.662,224.731,224.296,224.101,223.96,224.233,225.401,232.361,240.883,249.674,251.901,242.883,224.617,206.044,198.849,199.211,200.046,200.572,201.004,200.443,199.647,199.132,199.081,199.572,198.924,198.489,197.928,198.056,198.983],"sampleSize":4320.6,"asOf":"2026-08-08T12:33:47.643Z","headline":"Oasis Foundation leads rpc latency at 222 ms (p50, 24h) on Fastest free Oasis Sapphire RPC, live no-key endpoint latency.","quote":"Oasis Foundation leads rpc latency at 222 ms (p50, 24h) on Fastest free Oasis Sapphire RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/oasis-sapphire-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Oasis Sapphire RPC, live no-key endpoint latency\". Retrieved 2026-08-08. https://openchainbench.com/benchmarks/oasis-sapphire-rpc","bibtex":"@misc{ocb_oasis_sapphire_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Oasis Sapphire RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/oasis-sapphire-rpc},\n  note   = {Retrieved 2026-08-08}\n}","apa":"OpenChainBench. (2026). Fastest free Oasis Sapphire RPC, live no-key endpoint latency. Retrieved August 8, 2026, from https://openchainbench.com/benchmarks/oasis-sapphire-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Oasis Sapphire RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/oasis-sapphire-rpc\r\nY2  - 2026-08-08\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: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms to 10 s), so percentiles are computed via Prometheus `quantile_over_time` over the last 24 hours.","Call-result classification: `ok` (HTTP 200 + non-empty result), `http_err`, `jsonrpc_err` (HTTP 200 carrying an error body), `stale` (more than 20 blocks behind the cross-provider tip), `timeout`.","This page is part of the per-chain RPC cluster derived from the cross-chain [rpc-capabilities](https://openchainbench.com/benchmarks/rpc-capabilities) benchmark; the identical harness, cadence and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to `chain=\"oasis-sapphire\"`. Provider coverage at launch: 1 no-key endpoint (Oasis Foundation)."],"license":"CC-BY-4.0"}