Supported chains
Chains that Chainstack lists as supported on its docs or pricing page at the time of last verification. Always confirm method coverage on the provider's own page before betting production traffic on it.
- EthereumChain ID 1
- Polygon PoSChain ID 137
- BNB Smart ChainChain ID 56
- Arbitrum OneChain ID 42161
- OP MainnetChain ID 10
- BaseChain ID 8453
- Avalanche C-ChainChain ID 43114
- SonicChain ID 146
- LineaChain ID 59144
- ZKsync EraChain ID 324
- ScrollChain ID 534352
- Polygon zkEVMChain ID 1101
- BlastChain ID 81457
- MantleChain ID 5000
- Gnosis ChainChain ID 100
Features
Strengths
- Region selection is rare among RPC providers and useful for data residency commitments.
- Trader nodes optimised for low latency are a defined product, not a hidden tier.
- Strong observability dashboards.
Considerations
- Dedicated node pricing scales with the cloud and region; budget per endpoint.
- Subgraph pricing is separate from RPC pricing; check both if you index.
Sources
- Chainstack pricing — https://chainstack.com/pricing/
- Chainstack docs — https://docs.chainstack.com/
Compare other RPC providers
See the full vendor neutral comparison at /chains/rpc-providers or jump directly to the other providers below.
FAQ
Frequently asked questions
Which chains does Chainstack support?
Chainstack supports 15 tracked chains including Ethereum, Polygon PoS, BNB Smart Chain, Arbitrum One, OP Mainnet, Base. See the table below or the provider docs for the full list.
Does Chainstack offer a free tier?
Free Developer plan with 3M requests per month.
How is Chainstack priced?
Tiered monthly plans by request volume, with dedicated nodes priced per region and chain. Subgraphs and Trader nodes are add ons.
When should I pick Chainstack over other RPC providers?
Teams with latency or compliance constraints tied to specific regions. Region selection is rare among RPC providers and useful for data residency commitments.