Cosmos Hub RPC endpoints: free public URLs by 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 , PublicNode has the lowest median latency of the 4 free public Cosmos Hub RPC endpoints measured, 90 ms (p50, 24h, 3 regions). Source: OpenChainBench, https://openchainbench.com/benchmarks/cosmos-hub-rpc. 4 public endpoints, no key: cosmos-rpc.publicnode.com, cosmos-rpc.polkachu.com, rpc-cosmoshub.ecostake.com, rpc.lavenderfive.com. Full URLs with their 24h median are listed below.
Companion page
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
Cosmos Hub: 4 free public RPC endpoints answering `status` every 60 seconds from us-east, eu-west and Singapore, ranked by 24h median. PublicNode leads at 90 ms. 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 live today, 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.
Results: 4 free public Cosmos Hub RPC endpoints ranked by p50 latency (24h, 3 regions)
| № | Providers | p50 | p90 | p99 | Success |
|---|---|---|---|---|---|
| 1 | PublicNode | 90 ms | 189 ms | 593 ms | 99.88% (n=4342) |
| 2 | Polkachu | 141 ms | 251 ms | 743 ms | 99.79% (n=4337) |
| 3 | ecostake | 146 ms | 238 ms | 657 ms | 99.77% (n=4321) |
| 4 | LavenderFive | 175 ms | 234 ms | 549 ms | 99.95% (n=4329) |
Public Cosmos Hub RPC endpoints measured
The 4 no-key endpoints answering our probes today, with their current 24h median. Paste one into a wallet or a client as is: no signup, no key. Private providers (API key) are never listed with a URL.
PublicNodehttps://cosmos-rpc.publicnode.com90 ms99.9%
Polkachuhttps://cosmos-rpc.polkachu.com141 ms99.8%
ecostakehttps://rpc-cosmoshub.ecostake.com146 ms99.8%
LavenderFivehttps://rpc.lavenderfive.com:443/cosmoshub175 ms100.0%
Median round-trip and success rate over the last 24 hours across the probe regions; the ranked table above carries p90, p99 and the per-region split.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities