Read Ethereum blocks and chain data through a hosted JSON-RPC endpoint.
Free public RPC · Shared service · No fixed per-user quota or SLA promised

Developer tools
Read Ethereum blocks and chain data through a hosted JSON-RPC endpoint.
Read Ethereum blocks and chain data through a hosted JSON-RPC endpoint.
Read-only Ethereum JSON-RPC for lightweight development and blockchain lookups instead of paid Chainstack RPC capacity. Shared public infrastructure, not dedicated nodes, equivalent throughput, archive access or an enterprise SLA. Chainstack also offers its own free tier; this is an alternative provider, not a claim all Chainstack usage needs payment.
Registered free tier documents 210 million compute units per 30 days; this is not a verified anonymous-endpoint allowance. Free requests are rate limited per IP: normally 120,000 CU/minute, reduced to 50,400 under demand; some chains differ. Two-second timeout, three-item batches and disabled filter methods apply. Paid providers, fallback and verification features are outside the free tier. Read-only Ethereum JSON-RPC for lightweight development and blockchain lookups instead of paid Chainstack RPC capacity. Shared public infrastructure, not dedicated nodes, equivalent throughput, archive access or an enterprise SLA. Chainstack also offers its own free tier; this is an alternative provider, not a claim all Chainstack usage needs payment. No paid API or server hosting is required for the tested public reads. Your application hosting, networking and any optional transaction gas or premium APIs cost separately. No transaction execution, capacity, uptime or security audit performed.
Each comparison covers the workflow described above, rather than every paid feature.