Top 5 Sei RPC Providers in 2026: Coverage, Limits, and Pricing

Ahmad Firdous

Sei is a parallelized EVM Layer 1 with 400 ms finality and about 100 MGas/s of throughput today, and its planned Sei Giga upgrade targets 200,000 TPS. The chain is also moving to EVM-only operation under SIP-03, which disables IBC transfers and deprecates Cosmos SDK and CosmWasm functionality. A Sei RPC provider runs the nodes for you, so your team doesn’t have to sync a mainnet snapshot that reached about 335 GB in August 2026.

Table of Contents

For multi-chain teams in 2026, the best Sei RPC provider is NOWNodes. It exposes Sei’s EVM, Tendermint, gRPC, and Debug interfaces on shared and dedicated nodes. Paid plans have no predefined RPS limits, the uptime target is 99.9%, and paid access starts at €20 per month for 1 million requests. It fits wallets, payment processors, and explorers that already run several chains and want Sei on the same account.

Here is a list of the Sei RPC providers covered in 2026:

NOWNodes
QuickNode
Alchemy
dRPC
Ankr

How We Ranked the Best Sei RPC Providers

We checked each Sei RPC provider against its own Sei documentation and public pricing. The focus was on Sei-specific pressures: fast blocks, the Cosmos-to-EVM transition, and billing units that differ between vendors.

Network Coverage and Node Types. Sei mainnet and testnet access, EVM and Cosmos-side interfaces, and shared or dedicated nodes.
Performance and Reliability. Published uptime targets, throughput ceilings, and routing design.
Pricing and Support. Free-tier terms, entry price, billing unit, and support model.

Sei RPC Providers at a Glance

Feature	NOWNodes	QuickNode	Alchemy	dRPC	Ankr
Sei mainnet	✅	✅	✅	✅	✅
Sei testnet listed	❌	✅	✅	Verify	Verify
Tendermint / Cosmos access	✅	✅	❌	EVM-focused	✅
Dedicated nodes	✅	Quote	Quote	❌	Quote
Free tier	✅	Verify	✅	✅	✅
Paid throughput ceiling	No preset limit	Plan-based	10,000 CU/s	Up to 5,000 RPS	1,500 RPS
Billing unit	Flat-tier pricing	API credits	Compute units	Requests	API credits
Best For	Multi-chain production teams	Sei archive data	EVM prototyping on Sei	Low-cost failover	Credit-based multi-chain access

Rates, supported chains, and limits change frequently. Verify current terms on each provider’s official site before committing.

NOWNodes

Best for: multi-chain wallets and payment apps adding Sei to an existing stack.

NOWNodes is a blockchain node provider operated by Tech Castle OÜ in Tallinn, with access to more than 120 blockchains from one account. The company offers sei rpc access on shared and dedicated nodes, exposing Sei’s EVM, Tendermint, gRPC, and Debug interfaces on mainnet. Its partners include ChangeNOW, Trust Wallet, and Tangem, which reflects a customer base built around payments and wallets.

Network Coverage and Node Types. EVM and Tendermint APIs sit side by side, which helps teams that still read Cosmos-side state while moving their logic to EVM. The Sei page lists only mainnet, so a hosted testnet endpoint has to come from somewhere else. Archive access is confirming for Sei specifically.

Performance and Reliability. Requests go through geo-balanced clusters on US and EU servers, and failover kicks in automatically when a node drops. On paid plans, throughput scales with cluster capacity; there is no fixed RPS cap. NOWNodes publishes fewer independent latency benchmarks than the larger vendors, so plan to run your own tests.

Pricing and Support. The free Start plan lasts only one month and includes 100,000 requests at 15 RPS, with no WebSocket access. Pro costs €20 for 1 million requests, Business €200 for 30 million, and Enterprise €500 for 100 million. Every plan has a 3-minute support response target. Business overage works out to €10 per million requests, which is higher than dRPC’s flat rate.

QuickNode

Best for: teams that need Sei archive data back to genesis.

QuickNode is a US-based RPC provider focused on production workloads. It serves Sei’s Pacific-1 mainnet and Atlantic-2 testnet, with separate Sei documentation for each. Its mainnet endpoints serve archive data from genesis, which is uncommon among the providers here.

Network Coverage and Node Types. QuickNode supports Sei’s EVM methods alongside Cosmos REST and Tendermint APIs, and historical Cosmos queries use a block-height header. EVM methods start at block 79123881, the Sei V2 upgrade block. The QuickNode docs warn that Cosmos SDK and CosmWasm support will be deprecated in favor of EVM-only, which limits how long Cosmos-side integrations will last on any provider.

Performance and Reliability. QuickNode markets an uptime SLA and low-latency routing on its Sei page, though it doesn’t state a percentage there. Rate limits scale with the plan tier, with no single published ceiling. WebSocket subscriptions are supported for real-time events.

Pricing and Support. Billing runs on API credits, and heavier methods consume more credits per call. Third-party trackers list paid tiers at $49 (Build) and $299 (Scale), while free-tier terms are reported inconsistently. Plan to model your method mix before choosing a tier.

Alchemy

Best for: EVM developers prototyping on Sei with a permanent free allowance.

Alchemy is a developer platform known mainly for its Ethereum tooling. It lists Sei mainnet (chain ID 1329) and testnet (chain ID 1328), and its free tier includes 30 million compute units per month. It suits Solidity teams that already use Alchemy on other EVM chains.

Network Coverage and Node Types. On Sei, Alchemy supports its RPC API, Debug API, and WebSockets. Its product matrix lists Trace, Webhooks, gRPC, and the Token and NFT APIs as unavailable on Sei, and those tools are the main reason many teams pick Alchemy. Access is EVM-only, with no Tendermint endpoints.

Performance and Reliability. Throughput is capped at 500 CU/s on the free tier and 10,000 CU/s on Pay As You Go. Signed SLAs come with the Enterprise tier. Alchemy doesn’t publish a Sei-specific uptime figure.

Pricing and Support. Pay As You Go costs $0.45 per million CU up to 300 million, then $0.40 per million. Each method carries its own CU weight, so the real cost per request depends on which calls your app makes. Enterprise customers negotiate custom rates.

dRPC

Best for: a low-cost secondary endpoint in a two-provider setup.

dRPC routes requests across independent node operators. Its chainlist covers 130+ chains across more than 220 networks, and Sei’s official provider list includes dRPC NodeCloud. Billing is a flat rate per request, which makes dRPC the simplest provider here to budget for.

Network Coverage and Node Types. Sei’s documentation describes dRPC’s offering as EVM RPC endpoints. There are no dedicated Sei nodes, though teams can self-host NodeCore, dRPC’s open-source load balancer. Check the chainlist to confirm Sei testnet and archive availability.

Performance and Reliability. Paid Growth plans reach up to 5,000 RPS and carry a marketed 99.99% uptime target. The free tier allows about 100 eth_call requests per second, and dRPC can lower that to about 40 during regional demand spikes. Because traffic lands on different operators, latency varies more than with single-operator infrastructure.

Pricing and Support. The free plan provides 210 million CU per 30 days, served only from public nodes. Growth costs $6 per million requests and accepts crypto payments. Enterprise pricing starts at around 300 million requests per month.

Ankr

Best for: teams already using Ankr credits that want Sei on the same balance.

Ankr has operated Web3 infrastructure since 2017 and now positions its node network as DePIN. It serves Sei through its Node API, including a Tendermint JSON-RPC endpoint. Sei’s developer docs name Ankr among the providers suggested for production workloads.

Network Coverage and Node Types. Ankr’s Sei documentation covers EVM JSON-RPC methods, and its RPC page lists Tendermint access alongside them. Premium adds debug and trace namespaces plus WebSocket connections. Dedicated deployments are available on a quote basis.

Performance and Reliability. Freemium users get 30 requests per second on the Node API, and Premium raises that to 1,500. Ankr advertises 800+ archive and full nodes across its 80+ supported chains. It doesn’t publish a Sei-specific uptime figure.

Pricing and Support. Premium pay-as-you-go starts at $10 per 100 million API credits, and the Deal plan starts at $500 for 6 billion. A third-party review cites about 200 credits per eth_call, which makes the real cost per request much higher than the headline rate. Freemium includes community support only.

How to Choose a Sei RPC Provider

Sei’s fast finality and its move away from Cosmos interfaces change which specs matter most. Work through these steps before signing.

Audit your interface dependencies. List every Cosmos REST, Tendermint, or CosmWasm call your app still makes, and plan its migration under SIP-03.
Model polling at Sei’s block speed. Polling once per block produces far more calls on Sei than on Ethereum, so use WebSocket subscriptions where possible.
Convert every price to cost per request. Apply each vendor’s method weights to your real call mix before comparing CU, credits, and flat rates.
Check Sei-specific coverage. A provider’s general feature list may not apply to Sei, as Alchemy’s Sei product matrix shows.
Plan a fallback endpoint. Sei’s documentation is direct on this point: “Public RPC endpoints should only be used for development.”

Pilot two providers with production-representative traffic for at least a week before committing.