Top 7 Arbitrum RPC providers for DeFi in 2026

Arbitrum is Offchain Labs’ Optimistic Rollup Layer 2 built on Ethereum. It processes transactions off-chain and posts compressed calldata to Ethereum mainnet, achieving throughput well beyond what L1 can support while inheriting its security guarantees. Arbitrum carries approximately $1.2 billion in total value locked as of August 2026, per DefiLlama — down from earlier in the year, but still one of the most active Ethereum L2s for production DeFi integrations.

In 2026, the profile of who is building on Arbitrum has changed meaningfully. Asset managers, hedge funds, and on-chain treasuries are deploying real capital into protocols such as GMX, Aave v3, Uniswap v3, Pendle, and Radiant. These are not retail DeFi experiments — they are production integrations where a missed liquidation event, an undetected settlement failure, or an undocumented execution path carries real financial and compliance risk. Compliance teams at regulated institutions now require auditable RPC infrastructure: archive nodes for full historical state, debug_traceTransaction for execution-level audit trails, SOC 2-certified providers for vendor due diligence, and contractual SLAs for uptime.

This guide covers the seven Arbitrum RPC providers most relevant to DeFi workloads with institutional-grade requirements. It explains the infrastructure requirements those workloads create, the key RPC methods that matter, and how each provider addresses them — so engineering and procurement teams can make an informed decision.

Already on Chainstack? Jump straight to the Arbitrum tooling docs or deploy your endpoint in minutes at chainstack.com/build-better-with-arbitrum.

DeFi on Arbitrum: RPC requirements

Latency and throughput

DeFi is latency-aware but its requirements differ from high-frequency trading. What matters is not raw average response time but p95 and p99 consistency under load. A risk engine that polls collateral ratios every block cannot tolerate a provider whose latency triples during market volatility — that is precisely when accurate, fast responses matter most. Audit systems and real-time monitoring pipelines can burst to 100–500 requests per second during liquidation cascades or governance activity, and a provider that rate-limits at 250 RPS on a shared plan becomes a bottleneck exactly when the data is most time-sensitive.

Archive depth

Institutions need full historical state access. Pricing models require querying contract state at specific historical block heights, collateral snapshots used in risk assessments must reflect the exact on-chain state at a given moment, and liquidation event reconstruction for audit trails requires logs going back to protocol deployment. Any provider that only retains 128 blocks of state — the default for non-archive nodes — is immediately disqualifying for DeFi workloads.

The six key RPC methods

• eth_call executes a read-only call against a smart contract without broadcasting a transaction. For DeFi this is the primary method for querying collateral ratios, position values, and liquidity pool state. Called with a historical blockNumber parameter against an archive node, it enables point-in-time state reconstruction — essential for pricing models and post-trade analysis.
• eth_getLogs retrieves event logs matching a filter. This is the backbone of position monitoring, liquidation alert systems, and governance activity tracking. The practical concern for institutions is scale: a risk engine filtering Aave LiquidationCall or Borrow events over long time ranges generates large log payloads, non-archive nodes cannot service these queries, and providers with aggressive filter limits will error on broad queries.
• eth_getTransactionReceipt returns the receipt for a specific transaction, including its execution status, gas used, and all emitted event logs. For settlement confirmation systems this proves execution finality and provides the structured event data needed for ledger reconciliation. Batch receipt polling is a common pattern for institutions processing high volumes of on-chain activity.
• debug_traceTransaction replays a transaction at the EVM level and returns the complete execution trace: every opcode, every state change, every internal call. This is the method auditors and incident response teams reach for when they need to understand exactly what happened inside a complex DeFi interaction. It is only available on archive nodes with trace indexing enabled, and on Chainstack it is documented specifically for Arbitrum’s post-Nitro blocks.
• eth_subscribe (via WebSocket) enables push-based real-time notifications for new blocks (newHeads) and filtered log events (logs). For institutional position monitoring, polling is inferior to subscriptions both for latency and for RPS efficiency. The production concern is subscription stability: providers that drop WebSocket connections under load, impose session limits, or fail to reconnect cleanly are unsuitable for systems that must maintain persistent monitoring.
• eth_getBlockByNumber retrieves full block data including all transactions. Institutional systems use this for block-level reconciliation — confirming which transactions were included in a given block, verifying sequencer behavior, and constructing time-series views of on-chain activity — and for monitoring Arbitrum sequencer health, since unusual gaps between blocks can indicate sequencer issues before they propagate into downstream systems.

Arbitrum-specific: arb_getL1Confirmations

Arbitrum’s Optimistic Rollup architecture means L2 transactions are not immediately final on Ethereum L1. arb_getL1Confirmations returns the number of L1 Ethereum confirmations for a given L2 block, letting settlement systems distinguish between L2 execution (fast, sub-second blocks) and L1 finalization — the point at which the fraud proof window closes and finality is cryptoeconomically guaranteed. For institutional workflows that require L1-finalized settlement — cross-chain treasury operations or regulated custodians — this is the method that correctly models settlement risk instead of assuming L2 confirmation is enough.

Infrastructure: beyond the endpoint URL

For DeFi, the RPC endpoint is only part of the infrastructure story. Dedicated nodes — isolated hardware with reserved compute — matter because shared infrastructure means your burst traffic competes with everyone else on the same node. During a market event, when your risk engine is most active, a shared node may already be under maximum load from other users. Dedicated Nodes remove that contention and provide predictable throughput at all times.

SOC 2 Type II and ISO 27001 matter because institutional compliance teams require them for vendor due diligence — most enterprise security questionnaires include a dedicated section on infrastructure providers. A SOC 2 Type II report provides independent third-party attestation that controls operate effectively over time, not a self-assessed checklist; ISO 27001 attests to a formal information security management system around those controls.

Geographic deployment matters for latency to the Arbitrum sequencer, which runs in US East. For European institutional clients, Frankfurt-region nodes typically add measurable latency versus US East nodes for sequencer-dependent operations. Providers with multi-region infrastructure let institutions choose the right trade-off between latency optimization and local data residency requirements.

Provider comparison

The table below summarizes public positioning as of August 2026.

Provider	Pricing model	Free tier	Dedicated nodes	Archive & trace	MEV Protection
Chainstack	Subscription (Growth $49/mo → Enterprise $990+/mo) + Pay As You Go	Yes — Developer plan, 3M RU/month, no card required	Yes — from $0.50/hr	Yes — included on all paid plans	Yes (default)
OnFinality	Free public tier + paid Growth plan	Yes — public endpoint 5 RPS, free authenticated key up to 40 RPS	Yes — Dedicated Node	Yes — Trace & Debug APIs (debug_*, arbtrace_*)	Not documented
RouteMesh	Per-request ($3.00–6.00/M) + free community endpoint	Yes — free community routing tier	No — routing layer, not a node operator	Depends on the upstream node currently routed to	Not documented
Blockdaemon	Custom / contract pricing	No	Yes — Dedicated Nodes, HA clusters	Not publicly detailed for Arbitrum	Not documented
Infura	Request-based subscription tiers	Yes — 100K requests/day	Yes — Dedicated Staking and private endpoints	Partial — debug_*/trace gated to Core tier and above	Not documented
Alchemy	Compute unit-based subscription tiers	Yes — permanent, no time limit	Limited — not a primary offering	Yes — archive available; trace on Growth and above	Not documented
Quicknode	Credit-based subscription tiers	No — one-month trial, not a permanent plan	Yes — Dedicated Endpoints	Yes — on higher tiers	Not documented

Chainstack

Chainstack provides Arbitrum RPC infrastructure built for DeFi workloads that carry institutional audit requirements: archive access and debug_traceTransaction call tracing on every paid plan starting at $49/month, dual SOC 2 Type II and ISO 27001 certification, and Dedicated Nodes with hardware-isolated throughput priced from $0.50 per hour with no per-request billing.

Archive and trace on all paid plans. Archive node access — including debug_traceTransaction, trace_*, and legacy arbtrace_* methods — is included from Growth ($49/month) upward, not gated to an enterprise tier. Every call costs 1 Request Unit; archive, debug, and trace calls cost 2 RU regardless of method complexity, so a compliance-heavy workload doesn’t carry a hidden multiplier the way method-weighted competitors do.

SOC 2 Type II and ISO 27001 certification. Chainstack achieved SOC 2 Type II certification in December 2025 and ISO 27001 certification in July 2026, together covering security, availability, processing integrity, confidentiality, and privacy. The dual audit gives regulated institutional clients independent third-party evidence for vendor due diligence rather than a self-reported checklist.

Dedicated Nodes and the Unlimited Node add-on. For workloads requiring guaranteed RPS — risk engines, liquidation monitors, audit pipelines — Dedicated Nodes provide hardware-isolated compute with no shared neighbors. For predictable high-volume traffic, Unlimited Node offers flat monthly pricing from $149/month at 25 RPS up to $3,199/month at 500 RPS, with no overage billing.

Contractual SLA and MEV protection. The Enterprise plan adds SSO, RBAC, and a contractual 99.9% quarterly uptime commitment with service credits and 1-hour SEV1 response, documented on the support SLA page. Arbitrum Global Nodes also ship with MEV protection enabled by default — routing transactions away from the public mempool without a separate opt-in step.

Limitations: Chainstack’s contractual uptime SLA with service credits is an Enterprise-plan feature — Growth and Pro customers run on the same infrastructure but without a formal credit agreement if uptime slips. Compared to providers institutional teams have used for a decade, Chainstack’s own track record with this specific buyer segment is newer, even where the technical capabilities are equivalent or ahead.

The following example queries Aave v3 liquidation events on Arbitrum using eth_getLogs, a common pattern for institutional position monitoring:

from web3 import Web3

# Connect to Chainstack Arbitrum endpoint
w3 = Web3(Web3.HTTPProvider("YOUR_CHAINSTACK_ENDPOINT"))

# Aave v3 Pool on Arbitrum — replace with your verified pool address
AAVE_POOL = "YOUR_POOL_ADDRESS"

# Fetch LiquidationCall events from the last 1000 blocks
latest = w3.eth.block_number
event_topic = Web3.keccak(
    text="LiquidationCall(address,address,address,uint256,uint256,address,bool)"
).hex()

logs = w3.eth.get_logs({
    "fromBlock": latest - 1000,
    "toBlock": "latest",
    "address": AAVE_POOL,
    "topics": [event_topic]
})

print(f"Found {len(logs)} liquidation events")
for log in logs[:3]:
    print(log["transactionHash"].hex(), log["blockNumber"])

Fit for DeFi workloads:

• Audit trail and compliance: Excellent — archive and debug_traceTransaction ship on every paid plan, not gated behind a custom enterprise contract like some competitors require.
• Real-time monitoring at scale: Excellent — Dedicated Nodes remove the shared-node contention that throttles exactly when a risk engine needs it most.
• Enterprise procurement: Strong — dual SOC 2 Type II and ISO 27001 certification covers most vendor questionnaires, even though it’s a newer name to teams who’ve defaulted to the same two or three providers for years.

OnFinality

OnFinality operates managed Arbitrum infrastructure across a 100+ network platform, with direct support for both the standard debug_* trace namespace and Arbitrum’s legacy arbtrace_* methods, Dedicated Node deployments, and a public endpoint tier that scales from 5 RPS anonymous access to 40 RPS on a free authenticated key.

For Arbitrum (chain ID 42161, native token ETH), OnFinality’s API service supports HTTPS and WebSocket connections, archive access, and both trace namespaces — a direct match for the audit-trail methods DeFi workloads depend on. The Growth plan scales to 500 RPS with no daily response cap, and infrastructure runs across Hong Kong, France, and N. Virginia regions. OnFinality also operates managed SubQuery indexer hosting, a real differentiator for institutions that pair RPC access with an indexing pipeline for compliance reporting. It is one of several platforms that route a portion of traffic to upstream providers, Chainstack among them, rather than operating as Chainstack’s reseller or partner.

Limitations: OnFinality’s Arbitrum product page does not publish a SOC 2 or ISO 27001 report, which is a real gap for institutions whose procurement process requires one as a baseline. Regional infrastructure also skews toward Asia and Europe rather than US East, where the Arbitrum sequencer runs.

Fit for DeFi workloads:

• Audit trail and compliance: Strong — arbtrace_* and debug_* trace methods are supported directly, though no published SOC 2 report is a real gap for teams whose procurement requires one.
• Real-time monitoring at scale: Good — Growth-tier throughput up to 500 RPS handles most risk-engine loads; region coverage skews Asia/Europe rather than the US East sequencer location.
• Enterprise procurement: Moderate — a better fit for teams already consolidating multiple chains through OnFinality than as a standalone DeFi vendor for Arbitrum alone.

RouteMesh

RouteMesh routes Arbitrum RPC traffic across 1000+ EVM networks through a free community endpoint plus premium tiers priced from $3.00 per million standard requests, using real-time node health monitoring and automatic failover to keep response times consistent when an individual upstream node degrades.

For Arbitrum One (chain ID 42161), RouteMesh’s free community tier routes read requests to public nodes while directing transactions to premium infrastructure; paid tiers add performance routing at $6.00/M for latency-sensitive calls. Customers include LI.FI (60+ chains, 97% of its EVM RPC call volume), Vaults.fyi, and DAMM Capital, and the platform ships an MCP server and Cursor integration for agentic workflows. It routes a portion of its traffic to several upstream RPC providers, including Chainstack, as part of its multi-provider aggregation model.

Limitations: RouteMesh is a routing layer, not a node operator — it doesn’t itself guarantee archive depth or trace availability. Those depend on whichever upstream node currently serves a given request, which is a real friction point for auditors who need a single, consistently attributable data source.

Fit for DeFi workloads:

• Audit trail and compliance: Limited — routing across multiple upstream providers means archive depth and trace availability aren’t uniform, a genuine problem for auditors who need one consistent source of truth.
• Real-time monitoring at scale: Strong — automatic failover and real-time health scoring are exactly what a risk engine wants when a single upstream node degrades under load.
• Enterprise procurement: Moderate — a genuine fit for teams already running multi-chain infrastructure who want Arbitrum folded into the same routing layer, less so as a standalone institutional vendor.

Blockdaemon

Blockdaemon provides Dedicated Nodes for Arbitrum with High-Availability Clusters and Smart Routing, holds both SOC 2 Type II and ISO 27001 certification, and positions its infrastructure toward custody providers, exchanges, and other regulated institutions rather than general-purpose application developers.

Blockdaemon bundles node infrastructure with custody and staking services under one contract — a shape that appeals to institutions that already run other chains through Blockdaemon and want Arbitrum on the same vendor relationship. Its Dedicated Nodes are engineered around uptime and security rather than developer self-service: there’s no public free tier or self-serve pricing page, and access is arranged through a sales conversation rather than a signup form.

Limitations: the lack of public pricing and a self-serve free tier adds friction for teams that want to evaluate before committing, and Blockdaemon’s Arbitrum page does not publish archive or trace depth the way Chainstack’s or OnFinality’s do.

Fit for DeFi workloads:

• Audit trail and compliance: Strong — dual SOC 2 Type II and ISO 27001 certification plus an institutional/custody-first design line up directly with regulated procurement checklists.
• Real-time monitoring at scale: Good — High-Availability Clusters and Smart Routing are built for exactly this, though public performance data specific to Arbitrum is thin.
• Enterprise procurement: Excellent — this is Blockdaemon’s core market; custody providers and exchanges already running other chains through Blockdaemon can fold Arbitrum into the same vendor relationship.

Infura

Infura provides Arbitrum RPC access under ConsenSys, with a 100K requests/day free tier, Dedicated Staking and private endpoint options for isolated throughput, and debug/trace access gated to its Core tier and above rather than included by default on every plan.

Archive access is available broadly, but debug_traceTransaction and related trace methods require stepping up a tier — an added cost institutions should model before committing to a plan sized only for standard reads. Infura operates under ConsenSys’ broader compliance programs; Infura-specific SOC 2 Type II and ISO 27001 scope is not separately published, so institutional buyers should confirm current certification status directly during procurement rather than assume it matches ConsenSys’ corporate posture.

Limitations: Infura has a documented history of reliability incidents that matters for systems that must stay connected continuously, and trace-method access sitting behind a paid tier upgrade is an extra step competitors bundle by default.

Fit for DeFi workloads:

• Audit trail and compliance: Good — archive access is available, but debug_traceTransaction requires stepping up to Core tier or higher, an added cost worth modeling before committing.
• Real-time monitoring at scale: Moderate — WebSocket subscriptions work, though a documented history of reliability incidents matters for systems that must stay connected continuously.
• Enterprise procurement: Strong for teams already inside the ConsenSys/MetaMask ecosystem — existing vendor relationships often make Infura the path of least resistance rather than the strongest technical fit for audit-heavy workloads.

Alchemy

Alchemy supports Arbitrum with a permanent free tier (no time limit), strong archive and enhanced-API coverage for reconciliation workloads, and SOC 2 Type II certification — though it does not publish ISO 27001 certification and has no standard dedicated-node offering for isolated throughput.

Archive access is solid, and trace methods are available from the Growth tier upward. Alchemy’s enhanced APIs — Transfers, Token, NFT — are useful for reconciliation workflows that need more than raw logs. Alchemy’s cost curve steepens noticeably beyond the free tier; teams with high archive or trace usage often find the bill grows faster than expected, since Alchemy bills by compute unit rather than a flat per-call rate.

Limitations: no standard dedicated-node option is a real gap for institutions that need hardware-isolated throughput, and ISO 27001 is not part of Alchemy’s published certification set — worth flagging early to compliance teams that require it as a checklist item.

Fit for DeFi workloads:

• Audit trail and compliance: Strong — archive coverage is solid and enhanced Transfers/Token/NFT APIs help with reconciliation, though ISO 27001 isn’t part of its published certification set.
• Real-time monitoring at scale: Excellent — Notify webhooks and WebSocket subscriptions are mature and well-tested at the volumes institutional monitoring systems actually produce.
• Enterprise procurement: Good — already widely used in web3 engineering stacks, which lowers integration friction, but no standard dedicated nodes is a real constraint for isolated-throughput requirements.

Quicknode

Quicknode supports Arbitrum through credit-based subscription tiers with a one-month free trial rather than a permanent free plan, Dedicated Endpoints for isolated throughput, and dual SOC 2 Type II and ISO 27001 certification — matching Chainstack as one of two providers in this comparison with both credentials.

Archive and trace access are available on higher tiers, and Dedicated Endpoints give institutions isolated compute similar in shape to Chainstack’s Dedicated Nodes. Quicknode’s credit-based pricing can surprise teams once archive or trace calls enter the mix — each method consumes a different credit weight, so the effective cost per call is harder to forecast than a flat per-request model, and it’s worth modeling against expected call volume before committing to a tier.

Limitations: the free offering is explicitly a one-month trial rather than a permanent standalone plan, which adds friction for teams that want to evaluate integration quality before committing to a paid tier.

Fit for DeFi workloads:

• Audit trail and compliance: Strong — archive and trace are available on higher tiers, and dual SOC 2 Type II and ISO 27001 certification satisfies most vendor questionnaires outright.
• Real-time monitoring at scale: Good — WebSocket streams and a marketplace of add-ons cover most monitoring patterns, though credit consumption on heavy methods needs modeling ahead of time.
• Enterprise procurement: Strong — established enterprise contracts and long-standing vendor relationships in the institutional web3 stack, weighed against a trial-only free tier that adds friction for teams still evaluating.

Real-world performance benchmark

For DeFi workloads, average latency is a secondary concern. What matters is the p95 and p99 latency distribution — how bad does the tail get under load? A provider with 40 ms average latency but 800 ms p99 spikes is less useful for a position monitoring system than one with 70 ms average and consistent 150 ms p99 behavior.

Chainstack publishes live performance data via its public Grafana dashboard. The dashboard covers method-level latency for Arbitrum — including eth_call, eth_getLogs, and eth_subscribe — across EU, US West, and APAC regions, updated continuously and publicly accessible without authentication.

Key things to read from the dashboard when evaluating for institutional workloads:

• p95 vs. average spread: a large spread indicates inconsistent behavior under load — relevant for systems that cannot tolerate unpredictable latency
• eth_getLogs latency: this method is the most variable because response size depends on the number of matching events; watch for log-range queries that return large payloads
• WebSocket connection stability: sustained subscription uptime matters more than individual message latency for real-time monitoring

For European institutional clients, the dashboard allows comparison between EU-region and US East-region performance, helping quantify the latency trade-off between geographic proximity and sequencer co-location.

Getting started with Arbitrum DeFi on Chainstack

Deploy a production Arbitrum endpoint for DeFi in a few steps and build better with Arbitrum on Chainstack:

1. Log in to the Chainstack console (or create an account).
2. Create a new project
3. Select Arbitrum as your blockchain protocol
4. Choose network: Arbitrum Mainnet or Arbitrum Sepolia testnet
5. Deploy the node
6. Open Access and credentials and copy your HTTPS and WebSocket endpoints

For institutional workloads where RPS consistency and isolation are requirements, evaluate Dedicated Nodes after the initial deploy — hardware-isolated compute with reserved throughput is available inside the same project. Archive access, including debug_traceTransaction, is included from Growth ($49/month) upward — select archive mode during node creation to enable full historical state and trace indexing.

For the full reference of supported Arbitrum JSON-RPC methods, including which require archive nodes and which support trace indexing, see the Arbitrum methods reference and the Arbitrum tooling docs.

🤖 You can also access Chainstack Arbitrum RPC directly from Claude, Cursor, Codex, Windsurf, Gemini CLI, GitHub Copilot, Antigravity, Claude.ai, or ChatGPT using Chainstack MCP. For a fuller agent stack — MCP, the Chainstack skill, llms.txt for context ingestion, and WebMCP for agentic browsers — see the Chainstack Agents page.

Conclusion

For DeFi in 2026, the deciding factor in Arbitrum RPC provider selection is not which provider has the fastest average latency. It is which provider delivers audit-grade infrastructure by default: full archive access, debug_traceTransaction with call tracing, SOC 2 and ISO 27001-certified security controls, a contractual uptime SLA, and dedicated throughput that doesn’t degrade under market-event load.

• Audit trail and compliance — Chainstack or Quicknode: both provide archive and trace on paid plans and hold SOC 2 Type II and ISO 27001 certification; Chainstack’s flat per-call pricing makes debug-heavy workloads more predictable to forecast
• Real-time monitoring at scale — Chainstack Dedicated Nodes: hardware-isolated throughput with WebSocket subscription support and no shared contention under load
• Regulated custody and institutional procurement — Blockdaemon: bundles nodes with custody and staking under one contract for institutions that want a single regulated vendor relationship
• Existing web3 stack, lighter compliance bar — Alchemy or Infura: suitable when the organization already has established vendor relationships and the workload does not require frequent debug_traceTransaction calls

Frequently asked questions

Q: What is debug_traceTransaction and why do DeFi protocols on Arbitrum need it?

debug_traceTransaction replays a transaction at the EVM opcode level and returns its complete execution trace, including every internal call and state change. Institutional protocols need it for audit trails (documenting the full execution path of material transactions) and incident reconstruction (diagnosing failed transactions or exploits after the fact). It’s only available on archive nodes with trace indexing enabled — on Chainstack, it’s included on every paid Arbitrum plan from Growth upward.

Q: Which Arbitrum RPC providers in this comparison have a permanent free tier?

Chainstack (3M RU/month, no card required), Alchemy (permanent, no time limit), and Infura (100K requests/day) all offer a standing free plan. Quicknode’s free offering is explicitly a one-month trial rather than a permanent tier. RouteMesh and OnFinality both offer free community/public endpoint tiers with rate limits rather than a full-featured free plan, and Blockdaemon has no public self-serve pricing at all.

Q: How do I migrate an existing Arbitrum integration to a provider with full audit-trail support?

Swap the RPC endpoint URL in your application config, then confirm archive and trace availability on the new plan before cutting over production traffic. Test debug_traceTransaction and wide-range eth_getLogs queries against a handful of known transactions to confirm behavior matches your old provider, and run both endpoints in parallel for a short window before decommissioning the old one. The Arbitrum tooling docs cover connection setup for the common SDKs.

Q: How many RPS does a DeFi risk engine typically need on Arbitrum?

A risk engine tracking a single protocol — polling collateral ratios, monitoring liquidation events, maintaining block-synchronized state — typically needs 50–150 RPS in normal operation, bursting to 300–500 RPS for minutes at a time during volatility events that trigger cascading liquidations or heavy governance activity. Shared plans with 250–400 RPS limits may suffice normally but throttle exactly when the system is under the most demand. Dedicated infrastructure, or a flat-fee high-RPS add-on sized above peak burst, is the safer default for a production risk engine.

Q: Which Arbitrum RPC providers are SOC 2 and ISO 27001 certified in 2026?

Chainstack holds both SOC 2 Type II (December 2025) and ISO 27001 (July 2026) certification. Quicknode and Blockdaemon also hold both certifications. Alchemy holds SOC 2 Type II but does not publish ISO 27001. Infura operates under ConsenSys’ broader compliance programs without a separately published Infura-specific report. OnFinality and RouteMesh do not publish either certification on their Arbitrum-facing product pages as of this writing. For a vendor questionnaire requiring both credentials directly from the RPC provider, Chainstack, Quicknode, and Blockdaemon are the verified options.

Q: How does Arbitrum RPC pricing differ between flat and method-weighted providers?

Chainstack bills every call as 1 Request Unit, with archive, debug, and trace calls at 2 RU regardless of which method is called. Alchemy and Quicknode instead weight cost by compute unit or credit per method, so archive-heavy or trace-heavy workloads can cost several times more than the sticker price implies. In Chainstack’s own published EVM cost comparison, an 80M-request-unit workload runs $199/month on the Pro plan versus $703/month on Quicknode’s Scale plan and $666/month on Alchemy’s pay-as-you-go pricing — see the cost comparison article for the full methodology.

Additional resources

• How to get an Arbitrum RPC endpoint in 2026
• Arbitrum content hub
• Arbitrum official documentation
• Chainstack pricing