Top 7 Ethereum RPC providers for stablecoin infrastructure in 2026

Created Jun 5, 2026 Updated Nov 3, 2026

Chainstack

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Ethereum carries more stablecoin supply than any other chain, and an RPC outage here can stall payment rails moving billions in USDC and USDT a day. Stablecoin supply crossed $320 billion in May 2026, with over $150 billion of it on Ethereum mainnet, and Circle‘s USDC and Tether‘s USDT moved a combined $8 trillion across Ethereum in Q4 2025 alone.

MiCA’s full enforcement window opened July 1, 2026, and the GENIUS Act’s monthly reserve-attestation requirement is now more than a year into production use — both regimes are live, not upcoming. Monthly attestations lean on eth_call reads against reserve contracts, and MiCA’s daily transaction cap for non-EU-currency stablecoins pushes issuers toward continuous eth_getLogs monitoring to track volume in near real time. The infrastructure implications of both are covered in Chainstack’s 2026 crypto regulation guide.

This guide compares seven Ethereum RPC providers on the criteria that matter most for stablecoin operations: settlement throughput, nonce handling, real-time monitoring, and the compliance documentation both regimes now require from infrastructure vendors.

Quick verdict: best Ethereum RPC providers for stablecoin infrastructure in 2026

Chainstack is our top pick for stablecoin infrastructure on Ethereum (an editorial judgment, not a benchmark result), based on flat per-call billing that applies no method multiplier to eth_call, published SOC 2 Type II and ISO 27001 certification, and Dedicated Nodes. Chainstack publishes this page, runs the benchmark cited below and is one of the 7 listed providers, so see how we compared and the benchmark limits before relying on the ranking. In that benchmark Chainstack had the lowest overall P50, P95 and P99 of the three listed providers measured, but its US P95 trailed Alchemy and Quicknode. Last updated October 29, 2026. The best fit by need:

Best for attestation-heavy and eth_call-heavy workloads with certification paperwork: Chainstack (flat 1 RU per call, SOC 2 Type II and ISO 27001, Dedicated Nodes).
Best as a multi-chain monitoring and archive layer next to a primary provider: NOWNodes (120+ blockchains with archive, trace and WebSocket access; no published SOC 2 or ISO 27001).
Best for webhook-driven settlement event delivery without managing raw WebSockets: Uniblock (Unified APIs and webhooks pooled across 55+ providers; free tier of 40M CU/month).
Best for institutions already inside a formal procurement process: Blockdaemon (SOC 2 Type II and ISO 27001, custody and staking alongside nodes, contact-based pricing).
Best for teams that want a free daily quota from a long-established provider: Infura (3M credits/day free; no published SOC 2 or ISO 27001, and the daily quota needs capacity planning).
Best for smaller issuers that want managed event delivery and nonce handling: Alchemy (Notify and Transact APIs, 30M CU/month free; fastest US P95 of the three providers measured in the October 2026 benchmark, 80 ms).
Best for managed event streaming with dual certification: Quicknode (Streams, SOC 2 Type II and ISO 27001; fastest Germany P95 of the three providers measured, 40 ms).

Provider comparison: 7 Ethereum RPC providers for stablecoin infrastructure (2026)

The table below summarizes public positioning as of August 2026. The rank is the editorial order used in this article (see how we compared), not a benchmark result. The last column shows the overall P95 from Chainstack’s October 2026 Ethereum benchmark, which measured only three of the seven providers (lower is better).

Rank	Provider	Best for	Pricing model	Free tier	Dedicated nodes	MEV protection	Why it matters for stablecoin infra	Overall P95 in Oct 2026 benchmark (Chainstack-run)
1	Chainstack	Flat-rate eth_call billing, SOC 2 + ISO 27001, Dedicated Nodes	Flat RU (1 RU full, 2 RU archive/trace)	3M RU/mo, 25 RPS, no card	Yes, from $0.50/hr	Yes (default on)	Dedicated stablecoin product page, flat `eth_call` billing, SOC 2 + ISO 27001	78 ms
2	NOWNodes	Multi-chain monitoring with archive and trace	Monthly request quota, €20–€500/mo, overage per 100k	100k requests, 15 RPS, one month only	Yes, custom deployment on request	Not listed	One key across 120+ chains; WebSocket, archive and trace for transfer monitoring and reconciliation	Not measured
3	Uniblock	Webhook-driven settlement event delivery	CU-based, free through $549/mo tiers	Yes, 40M CU/mo	Not applicable (aggregation layer)	Depends on routed backend	Webhook-based settlement delivery without managing raw WebSocket reconnects	Not measured
4	Blockdaemon	Institutions in a formal procurement process	Custom, contact-based	No	Yes (Node Clusters)	Not documented	Institutional compliance stack (SOC 2 + ISO 27001) built for regulated buyers	Not measured
5	Infura	ConsenSys/MetaMask-lineage brand, free daily quota	Credit-based, daily quota	Yes, 3M credits/day	Enterprise only	Not documented	Daily quota resets create mid-day exhaustion risk at high settlement volume	Not measured
6	Alchemy	Notify and Transact APIs for smaller issuers	CU-based PAYG, $0.52/1M (no tiers)	Yes, 30M CU/mo	No standard offering	Not documented	Notify + Transact APIs ease event delivery and nonce handling for smaller issuers	103 ms
7	Quicknode	Streams plus dual SOC 2 + ISO 27001	Credit-based, tiered plans	1-month trial, 10M credits	Yes (Enterprise)	Not documented as default	Streams delivers settlement events without raw WebSockets; dual SOC 2 + ISO 27001	92 ms

How we compared Ethereum RPC providers for stablecoin infrastructure

Disclosure: this comparison is published by Chainstack. Chainstack is one of the 7 listed providers and is ranked first, so read the ranking as a vendor perspective and check the figures against the official pricing pages linked in each provider section.

Criteria. Each provider is compared on the same attributes: pricing model and free tier, dedicated infrastructure, MEV protection, settlement event delivery, compliance documentation (published SOC 2 Type II and ISO 27001) and fit for the workloads described above (sustained eth_sendRawTransaction throughput, eth_getLogs monitoring, attestation reads). The order is editorial judgment for stablecoin workloads. It is not a benchmark result. The latency benchmark below covers only 3 of the 7 listed providers (Chainstack, Alchemy and Quicknode), so it informs the latency discussion for those three and does not determine the order.

Sources. Prices, limits and certifications come from each provider’s public pricing, documentation and security pages, as summarized on this page as of August 2026 unless a section says otherwise. Latency figures for Chainstack, Alchemy and Quicknode come from the Chainstack Labs Research Team’s October 2026 Ethereum benchmark. Chainstack’s platform uptime is shown as 99.99%+ platform uptime (status.chainstack.com, Ethereum Mainnet, 99.99%+ over the 90 days to October 29, 2026). That figure is platform uptime from the status page, which covers the Mainnet component of each chain (testnet and devnet components are tracked separately) and Chainstack only; it is separate from the benchmark’s probe success rate and from contractual SLAs (for example the 99.9% quarterly uptime guarantee in the Enterprise Support SLA), and it is not a guarantee.

Not covered. Other Ethereum RPC providers may also exist beyond these 7. They are not part of this comparison. dRPC appears in the benchmark table because the report measured it, but it is not one of the 7 listed providers. NowNodes, Uniblock, Blockdaemon and Infura were not measured by the benchmark. Regulatory statements (MiCA, GENIUS Act) are summarized from the sources linked in the article; this article is not legal advice.

Latency data. See the Ethereum latency benchmark section for the figures, the method and what the benchmark does not show. For your own workload, measure from the region where your application runs; see how to measure RPC latency (P50, P95, P99).

💡 Already using Chainstack? Jump straight to the Ethereum tooling docs or deploy your endpoint in minutes.

Stablecoin infrastructure on Ethereum: RPC requirements

Stablecoin operations are write-heavy and continuously monitored — a different shape than the read-heavy queries most Ethereum dapps generate. An issuer moving thousands of USDC transfers a day can’t absorb a throttled eth_sendRawTransaction call, a dropped WebSocket subscription mid-settlement, or a rate-limited eth_getLogs scan during end-of-day reconciliation.

Proof-of-reserves attestations, mandatory monthly under the GENIUS Act, add a second workload: periodic eth_call reads against reserve contracts that need consistent state, not a degraded shared endpoint under concurrent load. MiCA’s daily cap on non-EU-currency stablecoin transfers (1 million transactions or €200 million, whichever is lower) means issuers serving EU users have to instrument transfer volume continuously rather than check it at month-end.

Latency and throughput profile

Stablecoin payment rails run sustained write throughput (50–300 RPS for large issuers) alongside continuous read monitoring — two patterns that stress different parts of a provider’s stack:

Transaction submission — eth_sendRawTransaction at sustained high RPS, with nonce management to prevent queue buildup behind a single stuck transaction.
Settlement monitoring — WebSocket eth_subscribe (logs) on stablecoin contract addresses for real-time Transfer event detection. A dropped subscription means a missed settlement event, which triggers manual reconciliation.
Attestation reads — periodic eth_call against reserve contracts for proof-of-reserves. These are bursty and low-RPS, but they can’t be throttled or return stale state.

A shared endpoint that rate-limits by method fails all three patterns at once during peak traffic. Issuers running sustained volume above a shared plan’s blended RPS ceiling move to dedicated throughput instead of tuning around the limit.

Key RPC methods for stablecoin infrastructure

eth_sendRawTransaction submits every transfer, mint, or redemption an issuer initiates. At high volume, a provider that queues or throttles this call under load creates a visible settlement delay — EIP-1559 type-2 transaction handling (maxFeePerGas, maxPriorityFeePerGas) is table stakes at this point.

eth_getTransactionCount retrieves the nonce, and in our assessment it is the most underappreciated method in high-volume stablecoin infrastructure. Concurrent submission from a single issuer address creates race conditions if nonce reads return stale state — the pending tag returns the next nonce including in-flight transactions, which matters for any concurrent submission pattern. See Chainstack’s Ethereum nonce management guide for production patterns, including stuck-transaction replacement.

eth_getLogs indexes Transfer, Mint, and Burn events for MiCA volume monitoring. Issuers track daily transaction counts and aggregate values against multiple contract addresses, typically with 5,000-block range windows. This method does not require an archive node for recent-block scans — a full node handles rolling-window monitoring; archive only enters the picture for point-in-time historical reads.

eth_subscribe (logs) delivers Transfer events over WebSocket within the same block they confirm, removing the polling latency of repeated eth_getLogs calls. For payment rails where settlement confirmation triggers a downstream action — unlocking funds, updating a balance, kicking off a bridge transfer — subscription reconnect handling and filter persistence across reconnects are the operational details that matter.

eth_call reads reserve contract state for GENIUS Act attestations and checks ERC-20 allowances before processing delegated transfers. At "latest", a full node handles it; a point-in-time historical read for a month-end attestation snapshot needs archive access. Providers with method-weighted billing charge multiples of a standard call here — see the pricing subsection below.

eth_estimateGas and eth_feeHistory together drive fee strategy. Underpaying stalls a transaction during congestion; overpaying wastes gas at volume. Accurate estimates depend on a node that’s actually in sync with mainnet state — a lagging node returns wrong numbers with no error to flag it.

eth_getTransactionReceipt confirms settlement. The status field (1 success, 0 reverted) plus emitted logs are the definitive record, called on every submitted transaction — it needs to return reliably immediately after confirmation, not eventually.

Infrastructure requirements

Sustained throughput is the primary requirement for active payment rails. Shared endpoints throttle at the plan’s blended RPS limit across every method combined; dedicated infrastructure isolates the workload from everyone else on the same cluster. Chainstack’s Unlimited Node add-on runs flat-rate tiers from $149/month at 25 RPS up to $3,199/month at 500 RPS with no per-request charges, and Dedicated Nodes start at $0.50/hour compute for fully isolated capacity.

WebSocket stability matters more here than for most workloads, because a dropped subscription means a missed settlement event rather than just a slower response. A provider that silently drops connections under load pushes reconnection engineering onto the issuer’s side.

Pricing model at scale decides whether the monthly bill is forecastable. The formula every issuer should apply before picking a plan: true cost per call = (method’s CU/credit weight × price per million units) ÷ 1,000,000 — multiply by monthly call volume for the real bill. Method-weighted billing applies that multiplier to eth_call and eth_getLogs specifically, the two methods a stablecoin issuer’s attestation and monitoring workloads run constantly — see the interactive cost calculator for current multipliers across providers rather than a number frozen at publish time.

MEV protection ships switched on by default on Chainstack’s Ethereum Global Nodes (also BNB Smart Chain), routing signed transactions to a private builder network instead of the public mempool. It’s a real consideration for large USDC or USDT transfers that could move a dependent DeFi pool’s price if visible in the mempool first — disabling it is one toggle in the node’s Add-ons tab if a workflow doesn’t need it.

SOC 2 Type II is, in our assessment, increasingly requested as a GENIUS Act vendor-attestation line item (this article is not legal advice). A monthly attestation package that names its infrastructure vendor’s security controls has a documentation gap if that vendor has no audited report to attach.

For the full method list and less-common calls, see the Ethereum API reference.

Ethereum RPC rate limits and free tiers compared

Rate limits and billing units differ between providers, so the same number of calls can cost different amounts. This table uses only the figures given in the provider sections below; “Not stated here” means this article gives no figure.

Provider	Free tier	Free-tier rate limit	Paid tiers or flat-rate throughput	Billing unit
Chainstack	Permanent, 3M RU/month, no card	25 RPS	Growth $49/month (20M RU, 250 RPS); Pro $199/month (80M RU, 400 RPS); Business $499/month (200M RU, 600 RPS); Enterprise from $990/month; Unlimited Node add-on $149/month (25 RPS) to $3,199/month (500 RPS); Dedicated Nodes from $0.50/hour	Request Units: 1 RU per request, 2 RU for archive and debug/trace
NOWNodes	Start plan: 100,000 requests, any 5 networks, one month only	15 RPS	Pro €20/month (1M requests); Pro Plus €90 (10M); Business €200 (30M); Business Plus €300 (50M); Enterprise €500 (100M); 10% off with annual billing; overage €5 to €0.50 per 100k requests; Dedicated Nodes via custom plan on request	Requests per month
Uniblock	Startup tier, 40M CU/month	1,000 CU/s	Growth $49/month (500M CU); Business $549/month (5.5B CU); custom Enterprise	Compute units (CU)
Blockdaemon	None	Not applicable	Contact-based pricing	Quote-based
Infura	Core, 3M credits/day	Not stated here	Developer $50/month (15M credits/day); Team $225/month (75M credits/day); custom Enterprise	Credits per day (daily quota)
Alchemy	30M CU/month	15 RPS	Pay-as-you-go $0.52 per million CU (the docs show $0.525), no volume tiers; no standard dedicated tier	Compute units (method-weighted)
Quicknode	One-month trial, 10M credits	Not stated here	Build $49/month (80M credits, 50 RPS) up to Business+ at $2,999/month; dedicated infrastructure from Enterprise	Credits (method-weighted)

Chainstack alternatives for stablecoin infrastructure on Ethereum

If Chainstack is not the right fit, these are the head-to-head differences between Chainstack and each alternative, using the facts in the sections below:

Chainstack vs NOWNodes: NOWNodes covers 120+ blockchains with one API key and offers archive, trace and WebSocket access on Ethereum, but its free Start plan lasts one month (100,000 requests, 15 RPS), and we found no published SOC 2 or ISO 27001 or MEV protection on its site. Chainstack has a permanent free tier (3M RU per month, 25 RPS, no card), runs Dedicated Nodes from $0.50/hour, and publishes both certifications. NOWNodes works well as a multi-chain monitoring layer next to a primary provider, while the certified production path stays on Chainstack.
Chainstack vs Uniblock: Uniblock offers a webhook and WebSocket layer and a 40M CU/month free tier pooled across 55+ providers, but is an aggregation layer with no dedicated infrastructure and no SOC 2 or ISO 27001 published independent of its provider pool; Chainstack offers Dedicated Nodes and both certifications.
Chainstack vs Blockdaemon: Blockdaemon publishes SOC 2 Type II and ISO 27001 and bundles custody and staking with nodes for regulated institutions, but has no public pricing or free tier and no documented MEV protection; Chainstack publishes its plans, has a free tier and MEV protection on by default on Ethereum Global Nodes.
Chainstack vs Infura: Infura has a free tier of 3M credits/day and long brand recognition, but its daily quota can be exhausted mid-day, it has no published SOC 2 or ISO 27001 and dedicated infrastructure sits behind Enterprise; Chainstack bills 1 RU per call on a monthly allowance and publishes both certifications.
Chainstack vs Alchemy: Alchemy has a larger free tier (30M CU/month), Notify and Transact APIs and a faster US P95 (80 ms against 143 ms) in the October 2026 benchmark, but CU weighting makes eth_call-heavy attestation workloads costlier to forecast and it has no standard dedicated nodes. Chainstack had the lower overall P50, P95 and P99 in that benchmark.
Chainstack vs Quicknode: Quicknode publishes SOC 2 Type II and ISO 27001, offers Streams for managed event delivery and had faster Germany (40 ms against 47 ms) and US (98 ms against 143 ms) P95 in the October 2026 benchmark, but its free offering is a one-month trial, it uses method-weighted credits and dedicated infrastructure sits behind Enterprise. Chainstack had the lower overall P50, P95 and P99.

In-depth reviews: 7 Ethereum RPC providers for stablecoin infrastructure (2026)

1. Chainstack: best for attestation-heavy workloads that need certification paperwork

Verdict: Flat 1 RU per call (2 RU for archive and debug/trace), published SOC 2 Type II and ISO 27001, Dedicated Nodes and Unlimited Node add-on. Trade-off: flat RPS tiers can be over-provisioned for spiky traffic, MEV protection adds a third-party builder-network dependency, and its US P95 (143 ms) trailed Alchemy and Quicknode in its own October 2026 benchmark. Official pricing.

Chainstack runs Ethereum RPC infrastructure with a dedicated stablecoin infrastructure product page and named enterprise clients including Circle, Rabobank, Itaú, and Trust Wallet, as listed on Chainstack’s own pages. This article did not check whether the other six providers publish stablecoin-specific pages or reference customers.

The flat 1 RU per request model (2 RU for archive and debug/trace calls) is, in our assessment, the most relevant feature for attestation-heavy operators: an issuer running thousands of daily eth_call reads for proof-of-reserves pays the same per-call rate as eth_blockNumber. Plans run from the free Developer tier (3M RU/month, 25 RPS) through Growth ($49/month, 20M RU, 250 RPS), Pro ($199/month, 80M RU, 400 RPS), and Business ($499/month, 200M RU, 600 RPS), with Enterprise contracts from $990/month for custom throughput. Dedicated Nodes start at $0.50/hour compute, with Bolt fast-sync cutting node startup time when spinning up additional capacity, and the Unlimited Node add-on runs flat RPS tiers from $149/month for teams that want submission throughput billed independent of call volume. Ethereum is also on Chainstack’s Self-Hosted roster (Reth + Prysm, mainnet plus Sepolia and Hoodi testnets), for issuers whose data-sovereignty requirements rule out shared cloud infrastructure entirely.

Chainstack’s SOC 2 Type II certification (December 2025) and ISO 27001 certification (July 2026) cover the security-controls documentation a GENIUS Act attestation package needs to name its infrastructure vendor by. The enterprise plan adds SSO and granular role-based access for teams assembling that documentation, and the Enterprise Support SLA commits to a 99.9% quarterly uptime guarantee with sub-1-hour response on Premium support.

Here’s a WebSocket subscription that watches a stablecoin contract for Transfer events in real time, using ethers.js:

import { ethers } from "ethers";

// Chainstack WebSocket endpoint
const provider = new ethers.WebSocketProvider("YOUR_CHAINSTACK_WSS_ENDPOINT");

// Stablecoin contract to watch (your USDC/USDT deployment)
const TOKEN_ADDRESS = "YOUR_TOKEN_CONTRACT_ADDRESS";
const TRANSFER_TOPIC = ethers.id("Transfer(address,address,uint256)");

provider.on(
  { address: TOKEN_ADDRESS, topics: [TRANSFER_TOPIC] },
  (log) => {
    const from = ethers.getAddress("0x" + log.topics[1].slice(26));
    const to = ethers.getAddress("0x" + log.topics[2].slice(26));
    console.log(`Settlement: ${from} -> ${to} | tx ${log.transactionHash}`);
  }
);

provider.on("error", (err) => console.error("WebSocket error:", err));

The Ethereum tooling documentation covers full setup, including viem and Web3.py equivalents.

Limitations: The Unlimited Node add-on‘s flat RPS tiers can be over-provisioned for issuers with genuinely spiky traffic rather than sustained load. MEV protection routes through a third-party builder network, which is one more dependency to monitor even though it’s opt-out rather than opt-in.

Fit for stablecoin infrastructure: Strong (our assessment; Chainstack publishes this page) — dedicated product page with named clients, flat eth_call billing applies no method multiplier to attestation reads, and dual SOC 2 + ISO 27001 covers the documentation ask. In Chainstack’s own October 2026 Ethereum benchmark it had the lowest overall P50, P95 and P99 of the three listed providers measured, but its US P95 (143 ms) was slower than Alchemy (80 ms) and Quicknode (98 ms), which matters for US-hosted submission and monitoring.

2. NOWNodes: best for multi-chain stablecoin monitoring with archive and trace access

Verdict: Multi-chain managed RPC with shared and dedicated Ethereum nodes, archive, trace and WebSocket access, and no predefined RPS limits on paid plans. Trade-off: no published SOC 2 or ISO 27001, and no MEV protection or transaction-landing tooling on its Ethereum page. Official pricing page.

NOWNodes is a node provider covering 120+ blockchains behind one API key, with Ethereum mainnet and testnet available on both shared and dedicated infrastructure. Besides standard RPC, the Ethereum offering includes WebSocket streams, archive mode, debug and trace methods, and a Blockbook API for indexed address and transaction data. Requests are served through geo-distributed, load-balanced clusters with automatic failover, and NOWNodes states 99.95% uptime. The free Start plan includes 100,000 requests a month, and shared plans scale up to 100 million.

For stablecoin payment rails, the pitch is breadth and traceability rather than a specialised settlement stack: if you issue or accept a stablecoin on Ethereum and several other chains, one provider and one key can cover all of them, and WebSocket subscriptions let a payment service watch Transfer events without polling. Archive and trace access cover reconciliation and dispute work, such as replaying a historical transfer or inspecting internal calls. Teams that need isolation from shared traffic can move the same workload to a dedicated node, which NOWNodes deploys on request in a region chosen for latency or compliance needs.

Limitations: NOWNodes doesn’t publish SOC 2 or ISO 27001 reports on the pages we reviewed, so a regulated attestation package still needs a certified provider alongside it. Its Ethereum page lists no MEV protection or transaction-landing features, and shared plans have monthly request quotas, so a spike in settlement traffic can mean overage charges or a move to a higher tier or a dedicated node.

Fit for stablecoin infrastructure: Good as a cost-efficient multi-chain read and monitoring layer with archive depth (our assessment) — it covers “how do we watch and reconcile stablecoin flows across several chains”, but it isn’t the vendor a GENIUS Act attestation package names on its own.

3. Uniblock: best for webhook-driven settlement event delivery

Verdict: Unified API and webhook layer pooled across 55+ providers with a 40M CU/month free tier. Trade-off: aggregation layer with no dedicated infrastructure, no SOC 2 or ISO 27001 published independent of its provider pool. Official pricing.

Uniblock pools 55+ underlying RPC providers behind a single Unified API covering 300+ blockchains, including Ethereum, with automatic routing and failover across that pool plus a Direct Provider APIs tier for methods that haven’t been standardized yet. The free Startup tier includes 40 million CUs and 1,000 CU/s; Growth runs $49/month for 500 million CUs, up through Business at $549/month for 5.5 billion CUs and a custom Enterprise tier above that.

The webhook and WebSocket layer on top of Unified APIs is the part most relevant to stablecoin settlement monitoring: instead of managing raw eth_subscribe reconnect logic in-house, a reconciliation pipeline can subscribe to Transfer events as a managed stream and let Uniblock absorb the underlying provider churn. Pooling 55+ providers behind one API also means more aggregate rate-limit headroom during a traffic spike than any single upstream plan would offer alone.

Limitations: Certifications and archive depth are a function of whichever underlying provider serves a given request, and Uniblock’s own trust documentation doesn’t publish SOC 2 or ISO 27001 status independent of that pool. Dedicated infrastructure isn’t part of the product — it’s an aggregation layer, not a node operator.

Fit for stablecoin infrastructure: Good for event-delivery pipelines and rate-limit headroom during bursts, but the same compliance-documentation gap as NOWNodes limits it to a complementary role rather than the primary attestation-package vendor.

4. Blockdaemon: best for institutions already inside a formal procurement process

Verdict: SOC 2 Type II and ISO 27001 with custody, staking and Node Clusters under one compliance umbrella. Trade-off: no public pricing or free tier, so no self-serve way to try it, and no documented MEV protection. Official site (pricing on request).

Blockdaemon runs Ethereum RPC and Node Clusters as part of a broader institutional stack that also covers custody (Institutional Vault, a self-hosted MPC wallet) and staking — built explicitly for “the world’s most regulated institutions” rather than individual developers. Both SOC 2 Type II and ISO 27001 are published, and pricing is contact-based across the board rather than published tiers.

For a stablecoin issuer that’s already a bank, asset manager, or exchange evaluating vendors through a formal procurement process, Blockdaemon’s positioning as custody-plus-nodes-plus-staking under one compliance umbrella is a fit — the sales motion assumes a due-diligence process rather than a self-serve signup. That’s a different buyer than the developer spinning up an endpoint from a console in ten minutes.

Limitations: No public pricing or free tier means there’s no way to evaluate the product without engaging sales first, which rules it out for early-stage teams or anyone prototyping before committing budget. No documented MEV protection.

Fit for stablecoin infrastructure: Strong for institutions already inside a formal vendor-onboarding process, where the certifications and custody adjacency are real assets. Teams still validating their integration have no self-serve path to try it first.

5. Infura: best for teams that want a free daily quota from a long-established provider

Verdict: 3M credits/day free and Ethereum-ecosystem brand recognition. Trade-off: the daily quota can be exhausted mid-day, no published SOC 2 or ISO 27001, and dedicated infrastructure only through Enterprise. Official pricing.

Infura carries brand recognition through its MetaMask and ConsenSys lineage and is widely used across Ethereum applications (usage share not independently verified here). Pricing runs on a daily credit quota: Core is free at 3 million credits/day, Developer is $50/month for 15 million credits/day, and Team is $225/month for 75 million credits/day, with Enterprise custom above that.

The daily-quota structure is the operational concern for stablecoin workflows specifically: a payment rail processing unevenly through the day can exhaust its quota before the calendar reset, causing a mid-day outage rather than a graceful throttle. For a settlement system where a missed window means delayed payments, that failure mode is worth modeling against actual traffic shape before committing.

Limitations: No published SOC 2 or ISO 27001 compliance documentation, which is a real gap for a GENIUS Act attestation package. Dedicated infrastructure isn’t part of the published tiers — it sits behind the custom Enterprise conversation.

Fit for stablecoin infrastructure: Moderate — the daily quota model needs careful capacity planning for high-volume rails, and the missing compliance documentation limits it for issuers building a formal vendor-attestation package.

6. Alchemy: best for smaller issuers that want managed event delivery and nonce handling

Verdict: Notify and Transact APIs and a 30M CU/month free tier; fastest US P95 (80 ms) of the three providers measured in the October 2026 benchmark. Trade-off: CU weighting makes eth_call-heavy attestation workloads costlier to forecast, no standard dedicated nodes and no published ISO 27001. Official pricing.

Alchemy’s Notify product delivers webhook notifications for Transfer events, and its Transact API adds managed transaction submission with automatic nonce handling and gas estimation — addressing two of the operational pain points in this guide’s method list directly. The free tier includes 30 million CU/month at 15 RPS, with pay-as-you-go billing at $0.52 per million CU (300 RPS, no volume tiers).

Compute-unit billing weights heavier calls more than simple reads, and eth_call — the method proof-of-reserves attestations run constantly — falls into that heavier category. At meaningful daily attestation volume, that consumes CU quota faster than the headline plan size suggests. Alchemy’s security page says SOC 2 applies to its cloud vendors and points to a Trust Center, which lists a SOC 2 Type II report held by Alchemy Insights, Inc. and no ISO 27001 certification as of October 29, 2026, so issuers should confirm exact certification status directly with Alchemy before citing it in a vendor-attestation package.

Limitations: No standard dedicated node offering — production isolation isn’t available outside a custom Enterprise conversation. CU-weighted billing on eth_call makes attestation-heavy workloads costlier to forecast than flat-rate alternatives.

Fit for stablecoin infrastructure: Moderate (our assessment) — Notify and Transact simplify settlement monitoring and nonce handling for smaller issuers, but the CU cost on attestation reads and the absence of a listed ISO 27001 certification limit it for large-scale regulated operations.

7. Quicknode: best for managed event streaming with dual certification

Verdict: Streams, SOC 2 Type II and ISO 27001; fastest Germany P95 (40 ms) of the three providers measured in the October 2026 benchmark. Trade-off: free offering is a one-month trial, credits are method-weighted and dedicated infrastructure sits behind Enterprise. Official pricing.

Quicknode’s Streams product delivers on-chain events — including Transfer events — through webhooks, S3 buckets, or SQL queries, turning WebSocket reliability into a managed data pipeline rather than something an issuer’s own code has to handle. Quicknode holds both SOC 2 Type II and ISO 27001 certification, alongside Chainstack and Blockdaemon, which also publish both on this page. Plans run Build ($49/month, 80M credits, 50 RPS) through Accelerate, Scale, Business, and Business+ tiers up to $2,999/month, with dedicated infrastructure available from Enterprise.

Method-weighted credit billing is the primary cost concern for stablecoin operators here: heavier calls consume credits at a multiple of a simple read, and the free entry point is a one-month trial rather than a permanent tier — teams evaluating without committing to a paid plan need to plan around that clock. At production volume, credit consumption on attestation-heavy workloads tends to outpace what the headline plan size suggests, so it’s worth running the actual numbers through a cost calculator before settling on a tier.

Limitations: No permanent free tier — the one-month trial converts or lapses rather than continuing indefinitely. Dedicated infrastructure sits behind the Enterprise tier, so mid-market teams share endpoints with the broader user base.

Fit for stablecoin infrastructure: Strong (our assessment) — Streams and dual certification cover operational and compliance needs, but the trial-only free tier and credit-weighted billing on heavy calls are worth modeling before committing at scale.

Ethereum RPC latency benchmark (October 2026): Chainstack, Alchemy and Quicknode

Disclosure: Chainstack operates the monitoring service, the public Grafana dashboard and the scoring formula behind this benchmark, and is one of the four providers measured. The figures below come from the Ethereum RPC provider benchmark (Research Note No. 050, published October 8, 2026) by the Chainstack Labs Research Team. Live data is on Chainstack Compare and the Chainstack performance dashboard. Compare labels the success-rate column “availability”; here it is called probe success rate because it is not platform uptime.

Method in brief: a 7-day window ending October 8, 2026; probes every 1 to 3 minutes from three cloud regions (Germany, US and Singapore) using a Python service on Vercel serverless functions; each provider on its first paid plan; a request counts as failed if it takes longer than 55 seconds. The score is response time divided by success rate cubed per region (lower is better), averaged equally across the three regions. The latency term is the mean of each method’s P95 and excludes eth_subscribe. The collection code is open source (compare-dashboard-functions).

Provider	Listed in this article	Score (lower is better)	Probe success rate	P50 (ms)	P95 (ms)	P99 (ms)	Germany P95 (ms)	US P95 (ms)	Singapore P95 (ms)
Chainstack	Yes	0.079	99.98%	36	78	117	47	143	42
Quicknode	Yes	0.097	99.98%	40	92	142	40	98	138
Alchemy	Yes	0.114	99.98%	38	103	188	64	80	164
dRPC	No (measured, not listed here)	0.670	99.96%	56	641	1,950	153	875	895

Source: Chainstack Labs Research Team, Ethereum RPC provider benchmark, October 2026 (7-day window ending October 8, 2026).

What the benchmark shows:

Among the three listed providers it measured, Chainstack has the lowest P50 (36 ms), P95 (78 ms) and P99 (117 ms) and the best overall score (0.079). The report puts second-place Quicknode’s score 23% higher.
Chainstack is not fastest everywhere. In the US, Alchemy (80 ms P95) and Quicknode (98 ms) beat Chainstack (143 ms). In Germany, Quicknode (40 ms) beats Chainstack (47 ms). Chainstack is lowest in Singapore (42 ms), and its best-to-worst region ratio is 3.4x (42 ms in Singapore against 143 ms in the US).
Chainstack, Quicknode and Alchemy tie on probe success rate at 99.98% (dRPC is 99.96%). This is the share of benchmark probe requests that succeeded over 7 days; it is not platform uptime and not an SLA.
For a payment rail, the regional figures matter more than the blend: a US-hosted submission or monitoring service sees Alchemy at 80 ms, Quicknode at 98 ms and Chainstack at 143 ms P95, while a Singapore-hosted one sees Chainstack at 42 ms, Quicknode at 138 ms and Alchemy at 164 ms.
dRPC, which is not one of the 7 listed providers, is degraded in the US (875 ms P95) and Singapore (895 ms P95).

What this benchmark does not show: NowNodes, Uniblock, Blockdaemon and Infura were not measured, so this page does not claim Chainstack is the fastest of the 7 listed providers. The latency term is a blended figure across methods and does not isolate the write-path calls that drive settlement confirmation (eth_sendRawTransaction, eth_getTransactionReceipt), and it excludes eth_subscribe, so it says nothing about WebSocket subscription latency or stability. The report covers a single 7-day window, each provider on its first paid plan only (free, higher and dedicated plans can behave differently), and synthetic probes from three cloud regions rather than end-user latency. It does not measure throughput under load, cost, archive depth, compliance documentation or correctness, and because Chainstack chose the scoring formula, a different formula could reorder close pairs. For a specific settlement path, benchmarking the exact method mix from the target deployment region remains the number that predicts production behavior.

Getting started with Ethereum on Chainstack

Deploy a production Ethereum endpoint for stablecoin infrastructure in a few steps and build better with Ethereum on Chainstack:

Log in to the Chainstack console (or create an account).
Create a new project
Select Ethereum as your blockchain protocol
Choose network: Ethereum Mainnet or Sepolia / Hoodi testnet
Deploy the node
Open Access and credentials and copy your HTTPS and WebSocket endpoints

For payment rails that outgrow a shared endpoint’s blended RPS limit, evaluate Dedicated Nodes or the Unlimited Node add-on after the initial deploy — both are available inside the same project without a separate signup.

Need testnet ETH for integration testing? Grab some from the Chainstack Sepolia faucet.

🤖 You can also access Chainstack Ethereum 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 Ethereum stablecoin infrastructure in 2026, the decision comes down to whether a provider’s pricing model and compliance documentation survive contact with a real attestation package — not which one benchmarks fastest on a generic call. The one dated benchmark cited here (October 2026) covers only three of the seven providers.

For production rails needing GENIUS Act attestation documentation: in our assessment, Chainstack (published by Chainstack, see how we compared) or Quicknode — both hold published SOC 2 Type II and ISO 27001, both offer dedicated infrastructure
For high-volume proof-of-reserves and eth_call-heavy attestation workflows: Chainstack (our top pick, an editorial judgment) — flat 1 RU per call regardless of method, with a dedicated stablecoin infrastructure page and named enterprise clients
For institutions already inside a formal procurement process: Blockdaemon — custody, staking, and nodes under one compliance umbrella, contact-based pricing
For settlement-event delivery without managing raw WebSockets: Quicknode Streams, Alchemy Notify, or Uniblock’s Unified APIs webhook layer — pick based on which certification and cost model fits
For a second endpoint alongside a primary provider: NOWNodes gives a separate infrastructure path with geo-balanced clusters and automatic failover on its side. A payment service can use it as a backup read and monitoring endpoint for the case where its primary provider degrades mid-settlement.
For development and testing: in our assessment, any provider’s free tier is sufficient; validate against a certified provider before promoting to production

Deploy your Ethereum RPC endpoint on Chainstack →

Frequently asked questions

Q: Does proof-of-reserves attestation under the GENIUS Act require an Ethereum archive node?

Only for historical snapshots — verifying a reserve balance at a prior reporting period’s close, for example. Live attestations using eth_call at "latest" run fine on a full node. Chainstack includes archive access from the Growth plan up.

Q: Which providers in this comparison hold both SOC 2 Type II and ISO 27001?

Chainstack (SOC 2 Type II in December 2025, ISO 27001 in July 2026), Quicknode and Blockdaemon publish both certifications according to the information on this page. Blockdaemon sells through a contact-based enterprise process rather than self-serve plans. Alchemy and Infura have not published both on the information used here; always request the current audit report directly from a vendor before citing it in a GENIUS Act attestation package.

Q: What’s the migration path from a daily-quota provider like Infura to flat-rate billing?

Point the application’s RPC URL at the new endpoint, confirm method support and archive depth match, and run both endpoints in parallel briefly to compare response shape before cutting over nonce-sensitive submission paths. The main behavioral difference to test for is how each provider handles concurrent eth_getTransactionCount reads under load, since that’s where migration bugs usually surface first.

Q: How should I benchmark Ethereum RPC latency for a stablecoin payment rail specifically?

eth_sendRawTransaction propagation time and eth_getTransactionReceipt response latency are the metrics most relevant to settlement UX — not a blended eth_blockNumber average. Chainstack’s October 2026 Ethereum benchmark reports a blended figure across methods and does not isolate these two. The Chainstack performance dashboard shows latency data by region, but running the exact method mix from the target deployment region is still the number that predicts production behavior.

Q: Does MiCA’s transaction cap for non-EU stablecoins change infrastructure requirements?

Yes. The 1-million-transaction or €200-million daily cap on non-EU-currency stablecoins processed for EU-resident users requires continuous volume monitoring, not a month-end check. eth_getLogs filtering on stablecoin contract addresses over rolling windows is the standard implementation, and it needs a provider with reliable sustained throughput and no artificial block-range caps.

Q: Why does eth_call pricing vary so much between providers, and does it matter here?

eth_call executes EVM code without broadcasting a transaction, which makes it computationally heavier than a simple state read — providers with method-weighted billing charge a multiple of a standard call for it. For an issuer running daily proof-of-reserves attestations, that multiplier compounds across thousands of calls a day. Chainstack bills 1 RU per call (2 RU for archive and debug/trace), so it applies no method multiplier to eth_call; for other providers, run the current numbers through the interactive cost calculator rather than relying on a number that may already be out of date.

Additional resources

Changelog

We review this comparison regularly so that the information stays accurate, clear, and easy to verify. This page was reviewed to improve how the comparison is structured and sourced.

October 29, 2026: Added a quick verdict, a Rank and Best for column in the provider comparison table (moved up), a methodology and disclosure section, an Ethereum latency benchmark section (October 2026, covering Chainstack, Alchemy and Quicknode) replacing the previous undated Compare ranking, a rate limits and free tiers comparison, alternatives guidance, numbered provider sections with one-line verdicts and official pricing links, a sourced Chainstack platform uptime statement, corrected vendor pricing, limits and certification details, and wording clarifications.
June 5, 2026: Original publication.

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