Top 5 Arc RPC providers for production apps in 2026

Arc is Circle’s EVM-compatible layer 1 built for stablecoin finance, where USDC — not a volatile gas token — pays for every transaction. Its public testnet has processed more than half a billion transactions across nearly 3 million wallets since going live in October 2025.

Its public mainnet launches September 16, 2026, with BlackRock, DTCC, Mastercard, Standard Chartered, and Visa among the founding validators — which is why provider choice matters this year specifically. Arc reads like a standard EVM chain, so teams default to whatever Ethereum RPC endpoint they already use. That assumption breaks on contact with Arc’s actual mechanics: native USDC is an 18-decimal balance with a separate 6-decimal ERC-20 view of the same value, every native transfer emits a Transfer log under EIP-7708, the pending mempool isn’t observable, and historical queries older than roughly 127 blocks bill as archive. None of that is exotic once you know it — but a provider that can’t serve archive reads cleanly or silently truncates a log range will cost you more than a slow response time.

This guide covers what building on Arc generally demands from an RPC layer — not just payment settlement, but general dApp deployment, wallet and exchange integrations, and developer tooling — and how the best Arc RPC providers compare: Chainstack, Blockdaemon, dRPC, Alchemy, and Quicknode.

💡 Already building on Arc? Jump straight to the Arc tooling docs or deploy an endpoint in minutes with build better with Arc.

Why RPC provider choice matters for Arc

Arc’s whole design point is that USDC is the gas token and every native transfer is a logged event — so a shared endpoint that silently rate-limits eth_getLogs or drops a WebSocket subscription doesn’t just slow a dApp down, it produces a wrong answer. That’s true whether the app is a payments backend, a DEX front end, a wallet, or an indexer — Arc doesn’t have a “simple” workload category, because the log stream and the dual-decimal balance model touch everything built on top of it.

Because Arc is pre-mainnet and the provider field is still forming, most of the criteria below are about which providers have real, current Arc support rather than years of chain-specific tuning. Here’s what actually separates a production-ready Arc endpoint from a testnet toy:

• Cost predictability and pricing model — flat request-unit pricing versus method-weighted CU/credit models. Chainstack bills every call as 1 RU (2 RU for archive); Alchemy’s compute units and Quicknode’s credits are method-weighted, so a log-heavy or archive-heavy Arc workload can cost several times more than the sticker price suggests.
• Archive and historical data access — depth of history, and per-request cost, for reads older than Arc’s roughly 127-block full-node window (about a minute at Arc’s ~0.48-second block time). Any reconciliation, indexing, or audit workload on Arc lives on archive access.
• Throughput stability under load — RPS ceilings and how gracefully a provider degrades under burst traffic, since Arc’s sub-second finality means client-side retry logic has less room to hide a slow endpoint.
• Free-tier reality — a permanent standalone free plan (Chainstack, Alchemy) versus a time-limited trial that later requires payment (Quicknode). This matters most right now, while most teams are still building against Arc Testnet ahead of mainnet.
• Support quality and responsiveness — whether free-tier support is community Discord/Telegram with engineers actually in-channel or documentation only, and what paid-tier response-time commitments look like. On a chain this new, getting a real answer to an Arc-specific question matters more than usual.
• SLA and compliance — uptime guarantees and audited certifications (SOC 2 Type II, ISO 27001). Arc’s founding validator list reads like a regulated-finance who’s-who, and teams building anything customer-facing on it should expect their own compliance reviewers to ask for the same attestations.
• Arc-specific mechanics — the EIP-7708 log-as-ledger model, the 18-decimal native / 6-decimal ERC-20 dual view of USDC, the unobservable pending mempool (eth_newPendingTransactionFilter and pending-transaction subscriptions return -32001), and the custom arc_getCertificate finality-proof method. A provider’s Arc support is only as good as its handling of these four points — full EVM compatibility doesn’t automatically cover them.

Comparison of the top Arc RPC providers

Arc’s provider ecosystem is thin by design — it’s a pre-mainnet chain, and none of the three multi-provider aggregators that usually fill out a comparison like this (RouteMesh, Uniblock, OnFinality) list Arc support yet, so this comparison stays direct-provider only rather than force a fit that doesn’t exist. Ankr also doesn’t support Arc at time of writing. Other tier-2 providers such as GetBlock list Arc Testnet endpoints too; this comparison focuses on the five providers with the clearest current product depth and mainnet trajectory. Chainstack, like every provider in this comparison, currently supports Arc Testnet only — Arc Mainnet isn’t live yet anywhere, and won’t be until the September 16 launch.

The table below summarizes public positioning as of August 2026.

Provider	Pricing model	Free tier	Dedicated nodes	Archive & trace	Mainnet readiness
Chainstack	Request units (1 RU/call, flat)	3M RU/mo, 25 RPS	Yes	Yes	Testnet only; mainnet expected at Sept 16 launch
Blockdaemon	Custom / institutional	Not documented	Yes	Yes	Testnet; evolving toward mainnet
dRPC	Flat ~$6/1M requests paid	Public nodes free	No	Varies	Testnet only
Alchemy	Compute units (method-weighted)	30M CU/mo	No	Partial	Testnet only
Quicknode	Credits (method-weighted)	Trial only	Yes (clusters)	Yes (full, no pruning)	Testnet; official Arc partner

How to choose an Arc RPC provider

1. Pricing model — flat vs weighted, and what that means at scale

Chainstack bills a flat 1 request unit per call (2 RU for archive), regardless of method. Alchemy’s compute units and Quicknode’s credits are method-weighted, meaning heavier calls — eth_getLogs over a wide range, debug_traceTransaction, historical eth_call — consume several times what a simple read costs. The formula worth keeping in your head: true cost per call = (method’s CU/credit weight × price per million units) ÷ 1,000,000 — multiply by your monthly call volume for the real bill, not the headline rate.

Not every provider publishes a per-method Arc rate yet, so the table below only states numbers that are actually confirmed rather than estimating the rest:

Provider	eth_getLogs unit weight	Effective cost / 1M calls (entry paid tier)
Chainstack	1 RU (flat)	~$2.45 (Growth: $49/mo for 20M RU)
dRPC	1 request (flat)	~$6 (published flat rate)
Alchemy	Method-weighted CU	Not published per-method; $0.45/1M CU baseline on Pay-as-you-go
Quicknode	Method-weighted credit	Not published for Arc specifically
Blockdaemon	Custom / institutional	Contract pricing — not published

For a full worked breakdown across providers, run your own numbers through the interactive cost calculator — it converts your actual method mix and call volume into a live comparison rather than relying on published averages.

2. Archive, trace, and debug method access

Arc runs the Reth client, so it exposes the standard debug_* namespace (including debug_traceTransaction) alongside the Parity-style trace_* namespace — useful for reconstructing a reverted call or auditing contract execution. What varies by provider is depth and pruning: Quicknode publishes full, unpruned Arc archive; Chainstack and Blockdaemon both support archive and debug/trace; Alchemy’s archive coverage for Arc is partial; dRPC’s depth varies by tier. If your workload does anything with historical state — a past-block eth_call, a wide eth_getLogs backfill, or contract-level tracing — archive access isn’t optional. See Chainstack archive data for how this is priced.

3. Free tier reality

Chainstack’s Developer plan (3M RU/month, 25 RPS) is a permanent free tier with no credit card required, and Alchemy’s 30M CU/month free tier is similarly permanent. dRPC’s public nodes are free with no SLA. Quicknode has no permanent free tier for Arc — only a time-limited trial — and Blockdaemon is enterprise-contract only. With mainnet still weeks away, most Arc development right now happens against Testnet on a free or low-cost tier, so which one survives past a prototype matters.

4. When dedicated infrastructure matters

Three concrete signals it’s time to move off a shared endpoint: sustained request volume that regularly bumps a shared RPS ceiling, a compliance requirement for isolated infrastructure (common for anything touching regulated stablecoin flows), or a need for custom node configuration that a shared endpoint can’t offer. Dedicated Nodes and Global Nodes cover the first two on Chainstack; Blockdaemon and Quicknode both offer their own dedicated/cluster options for Arc.

5. Arc-specific data access

Two Arc mechanics change how you write RPC calls. First, native USDC balances from eth_getBalance are 18-decimal, while the ERC-20 view most tooling expects is 6-decimal — reading the wrong one is the single most common Arc integration bug. Second, the pending mempool isn’t observable at all: eth_newPendingTransactionFilter and pending-transaction subscriptions return -32001 on every provider, since this is a protocol-level restriction, not a provider gap. Because Arc finalizes deterministically in well under a second with no reorgs, subscribing to confirmed logs over WebSocket — rather than watching a mempool — is the correct pattern for anything that needs near-real-time visibility into activity. For finality proofs specifically, the custom arc_getCertificate method (documented in the Arc methods reference) returns the consensus commit certificate for a given height.

6. Support quality — tiered, not “SLA yes/no”

Chainstack offers community Discord/Telegram support with engineers active in-channel on the free Developer plan, standard email support from Growth ($49/mo), and 24/7 enterprise support with sub-hour response on the Premium add-on (see enterprise support SLA). Alchemy and Chainstack both offer meaningful free-tier support; Quicknode and Blockdaemon lean more toward paid/contract support models. On a chain this new, a provider with engineers who actually know Arc’s quirks — not just generic EVM support — is worth more than the SLA document alone suggests.

7. Latency consistency vs. average latency

Average latency hides the tail — what matters for a production app is p95/p99 response time under real, bursty traffic, not a clean benchmark run. Arc isn’t yet covered by a public, real-time RPC performance dashboard.

⚡ Benchmark before you commit: Neither the Chainstack performance dashboard nor compare.chainstack.com covers Arc yet. Run a quick latency test against each provider’s endpoint from your target region before committing — a curl loop or k6 script hitting eth_getBlockByNumber and one heavier method like eth_getLogs is enough to surface meaningful p95/p99 differences.

Choose by use case

General-purpose dApp builders and developer tooling

Most teams evaluating Arc right now aren’t building a payments rail — they’re a DEX, a lending market, a wallet feature, or an indexer that happens to live on a chain where gas is USDC. For this group, the demanding part isn’t a single method; it’s that Arc’s EVM compatibility means existing Hardhat, Foundry, viem, and ethers.js tooling works largely unmodified, but the dual-decimal balance model and unobservable mempool are exactly the kind of thing that only shows up once you’re past a tutorial and into a real integration.

Chainstack and Alchemy both give this group a permanent free tier to build against Arc Testnet without a credit card, and both work with standard EVM tooling out of the box. Chainstack’s edge is archive and debug/trace access on the same free-to-paid path, useful once a dApp needs historical reads or contract-level tracing rather than just live calls.

Exchanges, wallets, and on/off-ramp integrators

A wallet or exchange backend reading Arc balances has to get the 18-decimal-native / 6-decimal-ERC-20 split right on every single balance display, and an on/off-ramp product moving USDC across Arc needs reliable, high-volume read traffic without a bill that scales unpredictably with usage. This is also the group most likely to outgrow a shared, per-request-billed endpoint quickly — a wallet backend’s read volume doesn’t follow a predictable daily curve the way a typical dApp’s does.

Chainstack’s Unlimited Node add-on replaces per-request billing with a flat monthly rate at a chosen RPS tier — a direct fit for wallet-scale read traffic where the call count is high but predictable in shape. Quicknode’s dedicated clusters and Blockdaemon’s institutional infrastructure are also credible options here if the integration already sits inside either vendor’s broader stack.

Enterprise infrastructure and compliance for institutions building on Arc

Arc’s founding validator cohort — BlackRock, DTCC, Mastercard, Standard Chartered, Visa — signals who’s showing up at mainnet, and any product built for that audience inherits their vendor-risk expectations regardless of whether it’s a payments rail, a custody integration, or an institutional trading tool. That means audited compliance certifications, a contractual uptime SLA, and — increasingly — a self-hosted or single-tenant deployment option for teams that can’t put regulated infrastructure on shared multi-tenant hardware.

Chainstack holds both SOC 2 Type II and ISO 27001; Blockdaemon and Quicknode publish both as well. Chainstack additionally lists Arc Testnet in its Self-Hosted supported-deployments table — a real option for teams that need the node inside their own environment rather than on any shared infrastructure, Chainstack’s included. dRPC’s free public nodes have no published compliance attestation and no SLA, which rules them out for anything regulated even though they’re a fine fit for prototyping.

Provider-by-provider breakdown

Chainstack

Chainstack runs Arc RPC on the chain’s native Reth + Malachite BFT stack and supports Arc Testnet today, with Mainnet access expected at or shortly after the September 16 launch — a smooth path for teams that want to move from testnet integration to production without switching providers mid-launch.

Pricing is flat: 1 request unit per call, 2 RU for archive, with no method multipliers — the Developer plan is permanently free at 3M RU/month and 25 RPS, no card required. Dedicated Nodes give single-tenant throughput with an optional 99.99% uptime SLA, Global Nodes cover geo-balanced shared access, and the Unlimited Node add-on swaps per-request billing for a flat RPS tier. Arc Testnet is also listed on Chainstack’s Self-Hosted deployment table for teams that need the node inside their own environment. Compliance is covered by audited SOC 2 Type II and ISO 27001 certifications, and archive and debug/trace access are both available for the reconciliation, indexing, and audit workloads that Arc’s log-heavy design produces.

Limitations: request-unit billing is predictable but still requires capacity planning around the 2-RU archive multiplier for backfill-heavy workloads. Teams that want that variable removed entirely should move heavy read traffic onto an Unlimited Node tier instead.

Fit by workload:

• General dApp building: Excellent — permanent free tier, standard EVM tooling, archive and trace on the same account.
• Wallet and exchange integration: Excellent — Unlimited Node fits high, predictable read volume without a method-weighted surprise.
• Enterprise and compliance: Excellent — SOC 2 Type II and ISO 27001 published, plus a Self-Hosted option most competitors don’t offer for Arc at all.

Blockdaemon

Blockdaemon provides institutional-grade RPC infrastructure for Arc’s public testnet, with dedicated node deployments and archive access, and has said support will evolve as mainnet approaches. Its positioning is squarely institutional — the same audience Arc’s founding validator list is drawn from — which makes it a natural fit for teams that already run multi-chain infrastructure through Blockdaemon and want Arc under the same vendor relationship.

Pricing is custom rather than published, and both SOC 2 Type II and ISO 27001 are part of Blockdaemon’s standard institutional compliance posture.

Limitations: Arc support is testnet-focused today, and there’s no self-serve pricing — you engage sales rather than sign up directly, which is a real friction cost for a small team just prototyping.

Fit by workload:

• General dApp building: Moderate — no self-serve tier makes it a heavy option for early prototyping.
• Wallet and exchange integration: Strong — institutional archive infrastructure and dedicated nodes suit high-volume backends.
• Enterprise and compliance: Strong — institutional positioning and published certifications, contract-priced.

dRPC

dRPC provides Arc Testnet endpoints through its distributed node network, with free public nodes and a flat paid rate of roughly $6 per million requests. That flat pricing is genuinely useful for cost-forecasting since — unlike method-weighted credits — a log-heavy read pipeline costs the same per call as anything else.

The free public endpoints make dRPC a fast way to prototype an Arc integration before committing to a paid provider, and its one-click MetaMask add makes testnet onboarding trivial.

Limitations: dRPC has no clearly published SOC 2 or ISO attestation, and the free public nodes carry no SLA — both rule it out for anything customer-facing that needs a compliance answer. It also doesn’t offer single-tenant dedicated nodes.

Fit by workload:

• General dApp building: Good — free public nodes and flat pricing make prototyping cheap and predictable.
• Wallet and exchange integration: Moderate — no dedicated nodes or SLA for production-scale read volume.
• Enterprise and compliance: Limited — no published compliance attestation.

Alchemy

Alchemy supports Arc Testnet with HTTP and WebSocket endpoints listed in its standard chain directory, so teams already standardized on Alchemy can treat Arc like any other EVM network in their existing Foundry or viem config. The WebSocket support matters specifically on Arc: since the pending mempool isn’t observable, subscribing to confirmed logs is the correct pattern for near-real-time visibility, and Alchemy’s WebSockets handle that cleanly.

The free tier is a genuine 30M compute units per month, permanent rather than a trial — a real positive for early-stage teams. Alchemy is SOC 2 Type II certified; ISO 27001 is not currently published.

Limitations: Alchemy’s Arc support is testnet-only today with no standard dedicated node option, and the compute-unit model — like any method-weighted scheme — makes archive-heavy read costs harder to forecast than flat per-call billing.

Fit by workload:

• General dApp building: Strong — permanent free tier, familiar tooling, solid WebSocket support.
• Wallet and exchange integration: Good — reliable endpoints, though CU costs need modeling at high read volume.
• Enterprise and compliance: Good — SOC 2 Type II published; no ISO 27001 or dedicated nodes.

Quicknode

Quicknode was an early official Arc infrastructure partner, offering managed Arc Testnet endpoints with full, unpruned archive data — a genuinely strong fit for anything doing historical reads, since there’s no pruning gap to work around. Its docs also surface Arc-native context (USDC gas, the FX engine, CCTP and Paymaster integration), which shortens the ramp-up for teams new to the chain.

Quicknode is SOC 2 Type II and ISO 27001 certified with dedicated clusters for isolated throughput. Pricing is credit-based and method-weighted, so a log-heavy or trace-heavy workload consumes credits faster than plain reads — worth modeling before committing to a tier, since Quicknode’s per-credit costs on heavy methods stack up quickly at production volume.

Limitations: there’s no permanent free tier for Arc, only a time-limited trial, and public support is testnet-focused today. Method-weighted credits make archive-heavy spend harder to forecast than flat per-call pricing, despite the strong unpruned archive depth.

Fit by workload:

• General dApp building: Good, once past the trial — full archive depth is a real advantage, but ongoing dev work runs on a paid plan.
• Wallet and exchange integration: Strong — dedicated clusters and unpruned archive suit high-volume backends well.
• Enterprise and compliance: Strong — SOC 2 Type II and ISO 27001 published, with dedicated infrastructure for isolated workloads.

Getting started with Arc on Chainstack

Deploy a production Arc endpoint in a few steps and build better with Arc on Chainstack:

1. Log in to the Chainstack console (or create an account).
2. Create a new project
3. Select Arc as your blockchain protocol
4. Choose network: Arc Testnet (Mainnet available after the September 16, 2026 launch)
5. Deploy the node
6. Open Access and credentials and copy your HTTPS and WebSocket endpoints

For workloads that need isolated throughput or a fixed monthly cost regardless of call volume, evaluate Dedicated Nodes or the Unlimited Node add-on after the initial deploy — both are available inside the same project.

import { createPublicClient, http, defineChain, formatEther } from "viem";

const arcTestnet = defineChain({
  id: 5042002,
  name: "Arc Testnet",
  nativeCurrency: { decimals: 18, name: "USDC", symbol: "USDC" },
  rpcUrls: { default: { http: ["YOUR_CHAINSTACK_ENDPOINT"] } },
});

const client = createPublicClient({ chain: arcTestnet, transport: http() });

// Native USDC balance is 18-decimal; the ERC-20 view is 6-decimal
const balance = await client.getBalance({ address: "YOUR_WALLET_ADDRESS" });

console.log("Balance:", formatEther(balance), "USDC");

The Arc tooling documentation has the full defineChain setup plus ethers.js and web3.py equivalents. Need testnet USDC to exercise a transaction path? Circle’s own faucet at faucet.circle.com tops up Arc Testnet accounts — Chainstack does not run a separate Arc faucet.

🤖 You can also access Chainstack Arc 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 most teams building on Arc in 2026, the decision isn’t which provider has the flashiest feature set — it’s which one has genuinely shipped Arc support, handles the log-as-ledger and dual-decimal mechanics correctly, and won’t need replacing the moment mainnet traffic arrives.

• General-purpose dApp builders: Chainstack or Alchemy — both offer a permanent free tier and standard EVM tooling on Testnet today.
• Wallets, exchanges, and on/off-ramp integrators: Chainstack’s Unlimited Node for predictable high-volume reads, or Quicknode’s dedicated clusters if already inside that stack.
• Institutional and multi-chain enterprise stacks: Blockdaemon to keep Arc under one vendor relationship, or Chainstack for the same compliance posture with self-serve deployment and a Self-Hosted option.
• Cost-sensitive prototyping: dRPC for free public nodes and transparent flat pricing — pair it with a compliant provider before anything production-facing.

Frequently asked questions

Q: What EVM quirks should developers know before deploying to Arc?

Arc is EVM-compatible, so most tooling works unmodified, but four mechanics are Arc-specific: native USDC balances are 18-decimal while the ERC-20 view is 6-decimal, every native transfer emits a Transfer log under EIP-7708, the pending mempool isn’t observable (eth_newPendingTransactionFilter returns -32001), and historical queries older than roughly 127 blocks bill as archive. Get any of these wrong and your dApp still runs — it just returns the wrong numbers.

Q: Which Arc RPC providers offer a free tier for testnet development?

Chainstack (3M request units/month, permanent, no card required), Alchemy (30M compute units/month, permanent), and dRPC (free public nodes, no SLA) all offer free access to Arc Testnet. Quicknode is trial-only with no permanent free tier, and Blockdaemon is enterprise-contract only.

Q: How do I prepare for Arc’s move from testnet to mainnet on September 16, 2026?

Build and load-test against Arc Testnet now rather than waiting for mainnet day. Chainstack, like every provider in this comparison, currently supports Arc Testnet only; Quicknode, Alchemy, dRPC, and Blockdaemon are also testnet-focused today, with mainnet support expected at or shortly after launch — confirm mainnet availability directly with any provider before switching production traffic over.

Q: How should I benchmark Arc RPC providers before choosing one?

No public dashboard tracks Arc provider latency yet, so run your own test: a curl timing loop or short k6 script hitting eth_getBlockByNumber and a heavier call like eth_getLogs from your target region. Measure p95/p99, not average latency — Arc’s sub-second deterministic finality means tail latency, not headline speed, is what a real workload will feel.

Q: What compliance credentials matter when picking an Arc RPC provider for a regulated product?

Insist on an audited report, not a logo. Chainstack holds both SOC 2 Type II and ISO 27001; Quicknode and Blockdaemon publish both as well; Alchemy publishes SOC 2 Type II only; dRPC’s free public nodes have no published attestation. Chainstack also lists Arc Testnet on its Self-Hosted deployment table, an option for teams that need the node inside their own environment.

Q: How do Arc RPC pricing models compare across providers?

Chainstack bills flat request units (1 RU per call, 2 RU for archive), which keeps cost proportional to call volume regardless of method. Alchemy and Quicknode use method-weighted compute units or credits, so log-heavy or trace-heavy workloads cost more than the sticker price implies. dRPC charges a flat ~$6 per million requests, and Blockdaemon is enterprise-contract priced.

Additional resources

• Arc getting started — Chainstack Docs
• Chainstack introduces Arc testnet support
• Arc official developer documentation
• Chainstack pricing