Fastest free Cosmos Hub RPC, live no-key Cosmos SDK endpoint latency
HTTP round-trip latency for the Tendermint `status` method against every free, no-key public Cosmos Hub Cosmos SDK endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Lava Network leads rpc latency at 90 ms (p50, 24h) on Fastest free Cosmos Hub RPC, live no-key Cosmos SDK endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/cosmos-hub-rpc.
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Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Cosmos Hub is the original Cosmos SDK chain and the IBC hub. ATOM staking secures both Cosmos Hub itself and consumer chains via Interchain Security. Same Tendermint `status` probe used on Osmosis; every provider live-verified with 4 consecutive keyless probes at launch. `rpc.cosmos.network` returned Cloudflare 525 during the launch audit and was excluded until the Cloudflare rate limit is lifted.
Methodology
Per-chain member of the RPC latency cluster, extended to Cosmos Hub. We measure the round-trip latency of a single, identical JSON-RPC call (Tendermint `status`) against every no-key public Cosmos Hub endpoint that sustains continuous probing, 4 providers at launch, every 60 seconds, from us-east, eu-west and Singapore. The harness classifies every response (ok / http_err / jsonrpc_err / stale / timeout) with a Cosmos Hub-scaled staleness gap (40 blocks at Cosmos Hub's ~6 s block time). The cross-chain view lives on the parent `rpc-capabilities` benchmark; this page is the Cosmos Hub-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Cosmos Hub RPC right now?
Lava Network currently leads at 90 ms (Tendermint `status` p50 over the last 24h), measured against 4 no-key providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples, so the answer on this page is the answer right now, not a quarterly snapshot. Use the region tabs to see the leader from the origin closest to your deployment.
Which Cosmos Hub RPCs work without an API key?
4 endpoints sustain continuous keyless probing at launch: PublicNode, Polkachu, LavenderFive, Lava Network. Every listed endpoint was live-verified with a Tendermint `status` POST returning a parsable response before inclusion. See the methodology section for the specific endpoints that were audited and excluded.
Does the fastest Cosmos Hub RPC change by region?
Often. Public infra concentrates in specific regions; a gateway that wins from Amsterdam can lose from Singapore by multiples. The region tabs at the top of the page re-scope every number to a single origin; pick the one closest to where your requests originate.
How is Cosmos Hub RPC latency measured here, technically?
One identical Tendermint `status` POST every 60 seconds against each provider from each of 3 regions, using the same plain HTTP client the rest of the RPC cluster uses. Wall-clock round-trip is recorded at millisecond precision; p50/p90/p99 are computed via Prometheus `quantile_over_time` over 24 hours. Responses are classified (`ok` / `http_err` / `jsonrpc_err` / `stale` / `timeout`) so an endpoint stuck on an old head or returning errors behind HTTP 200 is never ranked as fastest.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities