Fastest free Acala RPC, live no-key endpoint latency
HTTP round-trip latency for Substrate chain_getHeader queries against every available public Acala endpoint, audited every 60 seconds from 3 regions.
TL;DR. As of , Acala (RPC-0) posts the lowest rpc latency at 4 ms (p50, 24h) on Fastest free Acala RPC, live no-key endpoint latency. Source: OpenChainBench, https://openchainbench.com/benchmarks/acala-rpc.
Companion page
Comparing free RPC endpoints across every chain we measure? Open the cross-chain RPC matrix →
Acala is the DeFi hub of the Polkadot ecosystem, a Polkadot parachain providing decentralized stablecoin (aUSD), liquid staking (LDOT), and an EVM-compatible execution environment. Acala uses the Substrate framework and exposes a standard Substrate JSON-RPC interface; block height is queried via chain_getHeader. Public endpoints are available without an API key from Dwellir and the Acala official RPC cluster (aca-api.network). Every provider was live-verified with consecutive block-height probes at launch.
Methodology
Per-chain member of the RPC latency cluster, extended to Acala. We measure the round-trip latency of a Substrate chain_getHeader query against every available public Acala endpoint that sustains continuous probing: 3 providers at launch, every 60 seconds, from us-east, eu-west and Singapore. Each provider is probed via a JSON-RPC POST (chain_getHeader) from which the block number is extracted. The harness classifies every response (ok / http_err / jsonrpc_err / stale / timeout) with a Polkadot-scaled staleness gap (40 blocks, around 8 min at 12 s/block). The cross-chain view lives on the parent rpc-capabilities benchmark; this page is the Acala-scoped answer with per-region breakdowns as a first-class dimension.
Frequently asked
What is the fastest free Acala RPC right now?
Acala (RPC-0) currently leads at 4 ms (Acala block height p50 over the last 24h), measured against 3 providers probed every 60 seconds from us-east, eu-west and Singapore. The leaderboard re-sorts continuously against fresh Prometheus samples.
Which Acala RPC endpoints work without an API key?
3 endpoints sustain continuous keyless probing at launch: Dwellir (acala-rpc.n.dwellir.com), Acala RPC-0 (acala-rpc-0.aca-api.network) and Acala RPC-2 (acala-rpc-2.aca-api.network). Every listed endpoint was live-verified before inclusion.
Does the fastest Acala RPC change by region?
Often. Dwellir is Europe-focused while the Acala official nodes have fixed infrastructure. Rankings shift depending on your geographic origin. The region tabs re-scope every number to a single origin.
How does Acala RPC latency compare to other Polkadot parachains?
All Polkadot parachains use the same Substrate JSON-RPC probe (chain_getHeader), making latency directly comparable across the per-chain RPC cluster. The parent rpc-capabilities benchmark shows the cross-chain view.
Source code github.com/ChainBench/OpenChainBench/tree/main/harnesses/rpc-capabilities