{"slug":"swellchain-rpc","title":"Fastest free Swellchain 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 Swellchain EVM endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":16.6667,"leader":{"name":"Ankr","slug":"ankr","value":16.6667},"rankings":[{"name":"Ankr","slug":"ankr","ms":{"p50":16.6667,"p90":44.6667,"p99":336,"mean":30.2884},"successRate":100,"sampleSize":1323.64},{"name":"dRPC","slug":"drpc","ms":{"p50":165.167,"p90":174.333,"p99":315.667,"mean":168.758},"successRate":100,"sampleSize":188.621},{"name":"Sentio","slug":"sentio","ms":{"p50":183.667,"p90":194,"p99":363.667,"mean":186.329},"successRate":100,"sampleSize":1345.64}],"sparkline":[33.991,39.5635,76.1248,83.1123,80.4552,32.7682,12.7026,9.44818,9.25145,9.07762,9.125,13.4889,16.6056,18.2889,18.0472,18.0611,17.6222,17.3417,16.8972,19.5425,37.6918,64.6769,60.3074],"sampleSize":4189.551,"asOf":"2026-08-03T22:25:11.067Z","headline":"Ankr leads rpc latency at 17 ms (p50, 24h) on Fastest free Swellchain RPC, live no-key EVM endpoint latency.","quote":"Ankr leads rpc latency at 17 ms (p50, 24h) on Fastest free Swellchain RPC, live no-key EVM endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/swellchain-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Swellchain RPC, live no-key EVM endpoint latency\". Retrieved 2026-08-03. https://openchainbench.com/benchmarks/swellchain-rpc","bibtex":"@misc{ocb_swellchain_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Swellchain RPC, live no-key EVM endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/swellchain-rpc},\n  note   = {Retrieved 2026-08-03}\n}","apa":"OpenChainBench. (2026). Fastest free Swellchain RPC, live no-key EVM endpoint latency. Retrieved August 3, 2026, from https://openchainbench.com/benchmarks/swellchain-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Swellchain RPC, live no-key EVM endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/swellchain-rpc\r\nY2  - 2026-08-03\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/swellchain-rpc","ogImage":"https://openchainbench.com/api/og/swellchain-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 20 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=\"swellchain\"`. Provider coverage: 4 no-key endpoints."],"license":"CC-BY-4.0"}