{"slug":"blast-rpc","title":"Fastest free Blast RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_blockNumber against every free, no-key public Blast RPC endpoint, audited every 15 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"value":1.33333,"leader":{"name":"Blast","slug":"blast-official","value":1.33333},"rankings":[{"name":"Blast","slug":"blast-official","ms":{"p50":1.33333,"p90":2.33333,"p99":3,"mean":1.70011},"successRate":100,"sampleSize":8626.61},{"name":"dRPC","slug":"drpc","ms":{"p50":16.3333,"p90":27,"p99":65,"mean":19.9996},"successRate":94.782,"sampleSize":8625.61},{"name":"PublicNode","slug":"publicnode","ms":{"p50":78,"p90":85.3333,"p99":186.36,"mean":82.2259},"successRate":100,"sampleSize":8624.61},{"name":"Tenderly","slug":"tenderly","ms":{"p50":328,"p90":339,"p99":358.7,"mean":331.143},"successRate":100,"sampleSize":8635.61}],"sparkline":[1.93335,1.87639,1.90556,1.90694,1.91111,1.85278,1.87816,1.76996,1.83732,1.9462,2.07079,2.04053,1.99306,1.9875,1.96528,2.11485,1.90756,1.71849,1.34722,1.36667,1.37222,1.37639,1.36389,1.37222,1.37083,1.375,1.36944,1.375,1.36389,1.35556,1.36389,1.36944,1.38056,1.36944,1.36667,1.375,1.38333,1.38333,1.38056,1.36667,1.36389,1.36111,1.39167,1.40278,1.40278,1.375,1.38056,1.38333,1.38333,1.39722,1.45278,1.49167,1.46944,1.41111,1.79859,2.11675,2.43687,2.31933,2.33056,2.30833,2.28611,2.28431,2.22829,2.12185,1.98056,1.93333,1.94167,1.95278,1.96111,1.95417,1.95,1.95139,1.95972],"sampleSize":34512.44,"asOf":"2026-07-04T17:54:04.885Z","headline":"Blast leads rpc latency at 1 ms (p50, 24h) on Fastest free Blast RPC, live no-key endpoint latency.","quote":"Blast leads rpc latency at 1 ms (p50, 24h) on Fastest free Blast RPC, live no-key endpoint latency. Source: OpenChainBench (https://openchainbench.com/benchmarks/blast-rpc).","cite":{"plain":"OpenChainBench. \"Fastest free Blast RPC, live no-key endpoint latency\". Retrieved 2026-07-04. https://openchainbench.com/benchmarks/blast-rpc","bibtex":"@misc{ocb_blast_rpc,\n  author = {OpenChainBench},\n  title  = {Fastest free Blast RPC, live no-key endpoint latency},\n  year   = {2026},\n  url    = {https://openchainbench.com/benchmarks/blast-rpc},\n  note   = {Retrieved 2026-07-04}\n}","apa":"OpenChainBench. (2026). Fastest free Blast RPC, live no-key endpoint latency. Retrieved July 4, 2026, from https://openchainbench.com/benchmarks/blast-rpc"},"pageUrl":"https://openchainbench.com/benchmarks/blast-rpc","ogImage":"https://openchainbench.com/api/og/blast-rpc","source":"https://github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities","methodology":["Cadence: every 15 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\":1,\"method\":\"eth_blockNumber\",\"params\":[]}`. 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`. Latency without reliability is a misleading ranking signal.","Archive depth: every 5 minutes we issue `eth_getBalance` at (head − depth) for depths from Geth's default pruned cap up to 5M blocks, exposing which free endpoints actually serve historical state.","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, methodology and exclusion rules apply on every chain.","Chain scope: every query on this page is pinned to chain=\"blast\". Provider coverage: 4 no-key endpoints (PublicNode, dRPC, Tenderly, Blast). Exclusions follow the cluster-wide rules documented on the parent benchmark."],"license":"CC-BY-4.0"}