{"slug":"b2-rpc","title":"Fastest free B² Network RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public B² Network RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":348.63,"leader":{"name":"dRPC","slug":"drpc","value":348.63},"rankings":[{"name":"dRPC","slug":"drpc","ms":{"p50":348.63,"p90":560.252,"p99":717.777,"mean":396.742},"successRate":89.0715,"sampleSize":4319.75},{"name":"B² Network Official","slug":"b2-official","ms":{"p50":504.574,"p90":545.662,"p99":612.376,"mean":389.579},"successRate":100,"sampleSize":4318.75}],"sparkline":[522.167,515.974,511.4,533.988,527.563,540.914,539.867,542.883,541.617,528.422,521.59,513.915,519.922,535.024,534.704,488.626,444.275,407.963,398.65,395.851,393.429,397.412,390.655,381.311,368.69,372.209,377.411,390.787,392.526,389.441,375.147,364.185,364.448,361.572,358.997,358.174,358.546,356.42,351.316,359.573,365.803,364.511,366.404,362.389,378.136,369.038,371.835,359.528,364.269,359.936,361.763,363.377,372.452,372.675,369.613,355.115,364.777,360.239,370.855,358.642,358.451,346.786,353.683,364.645,380.4,383.465,383.837,383.098,381.459,386.064,379.504,380.078,374.799],"sampleSize":12959.25,"asOf":"2026-08-15T09:51:57.012Z","headline":"dRPC leads rpc latency at 349 ms (p50, 24h) on Fastest free B² Network RPC, live no-key endpoint latency.","quote":"dRPC leads rpc latency at 349 ms (p50, 24h) on Fastest free B² Network RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/b2-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free B² Network RPC, live no-key endpoint latency\". Retrieved 2026-08-15. https://openchainbench.com/benchmarks/b2-rpc","bibtex":"@misc{ocb_b2_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free B² Network RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/b2-rpc},\n  note   = {Retrieved 2026-08-15}\n}","apa":"OpenChainBench. (2026). Fastest free B² Network RPC, live no-key endpoint latency. Retrieved August 15, 2026, from https://openchainbench.com/benchmarks/b2-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free B² Network RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/b2-rpc\r\nY2  - 2026-08-15\r\nER  - \r\n"},"pageUrl":"https://openchainbench.com/benchmarks/b2-rpc","ogImage":"https://openchainbench.com/api/og/b2-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 → 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=\"b2\"`. Provider coverage at launch: 3 no-key endpoints (B² Official, dRPC, Thirdweb)."],"license":"CC-BY-4.0"}