Optimism public RPC endpoints, tested

Every keyless Optimism (chain ID 10) endpoint listed on Chainlist and chainid.network, tested the same way on 2026-10-04: does it answer on the right chain, how fast, how far behind the best head, how large an eth_getLogs range it accepts, whether it keeps archive state, and whether its WebSocket actually streams. 15 of 34 HTTP endpoints were working.

Working HTTP endpoints

Endpoint	Latency	Behind best	eth_getLogs	State
https://public-op-mainnet.fastnode.io	24 ms	2 blocks	under 1,000	none
https://optimism-mainnet.gateway.tatum.io	33 ms	3 blocks	under 1,000	none
https://rpc.swiftnodes.io/rpc/optimism (SwiftNodes, keyless: 2 req/s)	47 ms	3 blocks	1,000	archive (1M+)
https://rpc-optimism.blockmachine.io	65 ms	0 blocks	1,000	archive (1M+)
https://op.api.pocket.network	67 ms	2 blocks	10,000+	archive (1M+)
https://optimism.api.onfinality.io/public	100 ms	0 blocks	under 1,000	recent only
https://optimism.rpc.sentio.xyz	166 ms	1 blocks	10,000+	archive (1M+)
https://api.zan.top/opt-mainnet	197 ms	3 blocks	under 1,000	archive (1M+)
https://optimism-rpc.publicnode.com	18 ms	10 blocks	10,000+	none
https://optimism.drpc.org	19 ms	10 blocks	under 1,000	archive (1M+)
https://mainnet.optimism.io	35 ms	11 blocks	10,000+	archive (1M+)
https://optimism.public.blockpi.network/v1/rpc/public	73 ms	4 blocks	1,000	archive (1M+)
https://optimism-public.nodies.app	118 ms	5 blocks	under 1,000	archive (1M+)
https://public.1rpc.io/op	133 ms	5 blocks	under 1,000	recent only
https://xrpc.cl/optimism	280 ms	9 blocks	10,000+	archive (1M+)

Order: endpoints within 3 blocks of the best head first, then by median latency. Latency is measured from one server, so yours will differ by region; lag and limits do not.

WebSocket endpoints

streams op.api.pocket.network: first head after 39 ms
streams optimism-rpc.publicnode.com: first head after 1334 ms
streams optimism.drpc.org: first head after 1684 ms
does not stream optimism.gateway.tenderly.co: connection failed (connect)
does not stream opt-mainnet.4everland.org/ws/v1/37fa9972c1b1cd5fab542c7bdd4cde2f: connection failed (connect)
does not stream rpc.swiftnodes.io/ws/optimism (SwiftNodes): subscribe rejected: WebSocket subscriptions require an API key. Get a free key at https://swiftnodes

Listed but not working

optimism-mainnet.public.blastapi.io: chainId: Blast API is no longer available. Please update your integration to use Alchemy's API inste
optimism.gateway.tenderly.co: chainId: rate limited
rpc.hostdefi.com/api/rpc/optimism: chainId: rate limited
lb.routeme.sh/rpc/evm/10: chainId: rate limited
rpc.optimism.gateway.fm: chainId: fetch failed
optimism.meowrpc.com: chainId: fetch failed
api.stateless.solutions/optimism/v1/demo: chainId: fetch failed
public.stackup.sh/api/v1/node/optimism-mainnet: chainId: fetch failed
rpc.nodeflare.app/op/public: chainId: rate limited
go.getblock.io/e8a75f8dcf614861becfbcb185be6eb4: no answer (HTTP 401)
endpoints.omniatech.io/v1/op/mainnet/public: no answer (HTTP 521)
opt-mainnet.4everland.org/v1/37fa9972c1b1cd5fab542c7bdd4cde2f: chainId: Invalid API Key.
rpc.buildbear.io/esquivelfabian: no answer (HTTP 403)
optimism.lava.build: chainId: This endpoint has been discontinued.
rpc.owlracle.info/opt/70d38ce1826c4a60bb2a8e05a6c8b20f: no answer (HTTP 401)
optimism.therpc.io: chainId: fetch failed
op-rpc.keccak.io: chainId: auth error - api key required. This method needs an account — register free and get an API
gateway.tenderly.co/public/optimism: chainId: rate limited
api-optimism-mainnet-archive.n.dwellir.com/2ccf18bf-2916-4198-8856-42172854353c: chainId: rate limited

Test any endpoint yourself with the RPC tester. Our Optimism endpoint, limits and status: Optimism RPC, uptime history.