{"slug":"sei-rpc","title":"Fastest free Sei RPC, live no-key EVM endpoint latency","subtitle":"HTTP round-trip latency for the `eth_getBlockByNumber(\\\"latest\\\", false)` method against every free, no-key public Sei EVM endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":99.5704,"leader":{"name":"Sei Labs","slug":"sei-official","value":99.5704},"rankings":[{"name":"Sei Labs","slug":"sei-official","ms":{"p50":99.5704,"p90":113.481,"p99":142.114,"mean":102.017},"successRate":100,"sampleSize":4312.83},{"name":"Stakeme","slug":"stakeme","ms":{"p50":223.898,"p90":242.523,"p99":335.066,"mean":229.473},"successRate":100,"sampleSize":4311.83}],"sparkline":[107.826,107.664,106.705,111,111.84,112.281,106.842,104.722,105.221,105.513,106.067,104.13,105.356,103.461,102.909,102.283,102.137,101.292,98.3113,97.0758,96.4271,96.2526,97.081,97.1692,95.6243,94.6752,93.4351,93.3234,93.0346,93.5362,93.808,94.0202,94.8417,94.9739,95.9353,94.7616,95.4245,95.1184,96.1401,96.5403,97.0659,97.751,98.6507,99.0882,99.0752,99.6062,100.597,101.838,102.649,103.022,104.255,104.095,105.23,105.217,104.871,104.893,105.572,106.305,106.427,105.55,106.359,106.221,106.659,105.357,106.719,111.97,116.14,115.474,110.59,108.901,106.939,104.113,100.125],"sampleSize":12931.49,"asOf":"2026-09-10T13:26:00.776Z","headline":"Sei Labs posts the lowest rpc latency at 100 ms (p50, 24h) on Fastest free Sei RPC, live no-key EVM endpoint latency.","quote":"Sei Labs posts the lowest rpc latency at 100 ms (p50, 24h) on Fastest free Sei RPC, live no-key EVM endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/sei-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Sei RPC, live no-key EVM endpoint latency\". Retrieved 2026-09-10. https://openchainbench.com/benchmarks/sei-rpc","bibtex":"@misc{ocb_sei_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Sei RPC, live no-key EVM endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/sei-rpc},\n  note   = {Retrieved 2026-09-10}\n}","apa":"OpenChainBench. (2026). Fastest free Sei RPC, live no-key EVM endpoint latency. Retrieved September 10, 2026, from https://openchainbench.com/benchmarks/sei-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Sei RPC, live no-key EVM endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/sei-rpc\r\nY2  - 2026-09-10\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/sei-rpc","ogImage":"https://openchainbench.com/api/og/sei-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. Non-cacheable by design: the rotating id defeats edge caches that would answer a bare head query without touching a node.","Latency: client-side round-trip delta in milliseconds, exposed as both a gauge and a histogram (buckets 50 ms → 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 with a parsable hex block number), `http_err`, `jsonrpc_err` (HTTP 200 carrying an error body), `stale` (more than 25 blocks behind the cross-provider tip), `timeout`. Latency without reliability is a misleading ranking signal.","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=\"sei\"`. Provider coverage: 3 no-key endpoints. dRPC removed (500 persistent internal error)."],"license":"CC-BY-4.0"}