{"slug":"blast-rpc","title":"Fastest free Blast RPC, live no-key endpoint latency","subtitle":"HTTP round-trip latency for eth_getBlockByNumber against every free, no-key public Blast RPC endpoint, audited every 60 seconds from 3 regions.","category":"RPCs","metric":"RPC latency","unit":"ms","status":"live","higherIsBetter":false,"filters":null,"value":1.33333,"leader":{"name":"Blast","slug":"blast-official","value":1.33333},"rankings":[{"name":"Blast","slug":"blast-official","ms":{"p50":1.33333,"p90":1.33333,"p99":2.48129,"mean":1.38875},"successRate":100,"sampleSize":4311.94},{"name":"PublicNode","slug":"publicnode","ms":{"p50":89.3333,"p90":106.26,"p99":416.333,"mean":100.47},"successRate":100,"sampleSize":4310.94},{"name":"dRPC","slug":"drpc","ms":{"p50":189.333,"p90":324.567,"p99":535.3,"mean":189.046},"successRate":92.8323,"sampleSize":4311.93},{"name":"Tenderly","slug":"tenderly","ms":{"p50":327,"p90":340,"p99":393.855,"mean":328.871},"successRate":100,"sampleSize":4323.94}],"sparkline":[1.35724,1.35758,1.34306,1.36111,1.36111,1.35556,1.33889,1.33889,1.37222,1.37222,1.37778,1.34444,1.33894,1.35014,1.35589,1.38901,1.39886,1.40981,1.38764,1.36667,1.35556,1.35,1.37792,1.37241,1.37244,1.34444,1.35556,1.36667,1.37778,1.37222,1.36389,1.35,1.35,1.34744,1.35022,1.37799,1.77222,1.76667,1.74444,1.34583,1.35,1.36667,1.39861,1.4,1.37778,1.36111,1.36667,1.38056,1.37778,1.3836,1.36969,1.3558,1.34481,1.34481,1.35037,1.34444,1.33889,1.35007,1.36714,1.37272,1.36149,1.34589,1.34469,1.34469,1.35456,1.36134,1.39812,1.59655,1.62603,1.56187,1.33552,1.35968,1.36564],"sampleSize":17258.749999999996,"asOf":"2026-08-13T16:38:15.353Z","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 2026-08-15. 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 2026-08-15}\n}","apa":"OpenChainBench. (2026). Fastest free Blast RPC, live no-key endpoint latency. Retrieved August 15, 2026, from https://openchainbench.com/benchmarks/blast-rpc","ris":"TY  - GEN\r\nAU  - OpenChainBench\r\nTI  - Fastest free Blast RPC, live no-key endpoint latency\r\nPY  - 2026\r\nUR  - https://openchainbench.com/benchmarks/blast-rpc\r\nY2  - 2026-08-15\r\nER  - \r\n"},"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 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 latest-header fetch with a rotating id defeats edge caches that answer eth_blockNumber 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), `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"}