Best Sui RPC providers in 2026
The shift to gRPC and GraphQL in Sui RPC services highlights the need for adaptable infrastructure, impacting developers reliant on outdated interfaces.
TL;DR: The best Sui RPC provider serves both gRPC and GraphQL, because the old JSON-RPC interface is on its way out. Chainstack, Ankr (GraphQL on Premium) and Quicknode (GraphQL in beta) list both, and only Chainstack and Quicknode list SOC 2 Type II and ISO 27001.
Anything still calling Sui’s JSON-RPC needs a new home. The Sui Foundation switched it off on its public mainnet endpoints the week of July 27, 2026, and plans to remove it from the full node code in mid-October. gRPC and GraphQL replace it, and providers support them unevenly. DefiLlama shows about $300 million in DEX volume over seven days and about $0.5 billion in stablecoins on Sui (October 9, 2026). A missing interface or a throttled endpoint can break a bot, wallet or indexer.
Quick comparison
| Provider | Dedicated | Self-hosted | Free tier | gRPC / GraphQL | SOC 2 / ISO 27001 | Pricing |
|---|---|---|---|---|---|---|
| Chainstack | ā (Pro plan+) | ā | ā 3M RU/mo | ā / ā (Mainnet) | ā / ā | Flat, 1 RU per call |
| OnFinality | ā | ā | ā 400K/day | ā / ā | ā / ā | Response units |
| Dwellir | On request | ā | ā 100K/day | ā / ā | ā / ā | 1 credit per response |
| Ankr | Enterprise | ā | ā 200M credits | ā / ā (Premium) | ā / ā | Credits per method |
| Alchemy | ā for Sui | ā | ā 30M CU | ā / ā | ā / ā | CU by method |
| Quicknode | Enterprise | ā | Trial only | ā / ā (beta) | ā / ā | Credits by method |
Source: each providerās own Sui documentation and pricing pages, October 9, 2026; Dwellirās gRPC coverage is also checked against the Sui Foundationās provider directory. ā means not listed there.
1. Chainstack
Chainstack runs Sui on Global Nodes, Dedicated Nodes and Chainstack Self-Hosted. Mainnet Global Nodes serve gRPC, GraphQL and JSON-RPC on one endpoint and token. Nodes carry the Extended label: more history than a standard full node, not a full archive. Pricing is flat at 1 request unit per call, with 3M free a month and 20M on the $49 Growth plan.
Where it falls short: nodes hold a checkpoint window, not an archive; GraphQL filtered queries reach back up to 90 days; Dedicated Sui nodes need the $199 Pro plan or higher.
2. OnFinality
OnFinality treats gRPC as its main Sui API and keeps JSON-RPC for teams still migrating. It has a free plan of 400,000 response units a day, Growth from $49 a month and pay-as-you-go Dedicated Nodes.
Where it falls short: GraphQL isn’t listed for Sui, and it publishes no SOC 2 or ISO 27001.
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3. Dwellir
Dwellir bills 1 credit per response, whatever the method. It has 100,000 free responses a day, and the $49 Developer plan adds 25M responses at 100 requests per second.
Where it falls short: Sui’s provider directory lists it for mainnet gRPC only, with no GraphQL or archive, and it doesn’t publish SOC 2 or ISO 27001 prominently.
4. Ankr
Ankr runs its own Sui nodes with gRPC, a gRPC archive endpoint, mainnet GraphQL and 200M free credits a month. Its infrastructure operator holds SOC 2 Type II.
Where it falls short: archive and GraphQL are Premium-only, a gRPC call costs 10 credits plus a data charge, and ISO 27001 is in progress.
5. Alchemy
Alchemy has a permanent free tier of 30M compute units a month, documents Sui gRPC on mainnet and testnet, and holds SOC 2 Type II. It bills in compute units, with documented Sui methods commonly costing 20.
Where it falls short: no GraphQL for Sui, no documented Dedicated Clusters for it, streams billed by bandwidth, no ISO 27001 listed.
6. Quicknode
Quicknode serves gRPC, GraphQL (beta, per its docs) and archive data older than 14 epochs from one endpoint, with SOC 2 Type II and ISO 27001. Dedicated Sui infrastructure is Enterprise-only.
Where it falls short: Sui calls cost 40 credits at the base rate, so the 80M credits in the $49 Build plan cover about 2 million calls, against 20M on Chainstack’s $49 Growth plan. The free offer is a one-month trial.
ConclusionĀ
Chainstack is the best Sui RPC provider for most teams in 2026: it is the only one of the six that lists gRPC, GraphQL, SOC 2 Type II, ISO 27001 and a self-hosted option together, at a flat 1 request unit per call. Quicknode is the closest alternative, with the same interfaces and certifications (GraphQL in beta) but 40 credits per call and no self-hosted option. Ankr fits teams that want GraphQL and a gRPC archive endpoint on Premium. OnFinality, Dwellir and Alchemy fit teams that need gRPC only.