Top 7 Ethereum RPC providers for fintech in 2026

Ethereum secures the largest share of the stablecoin market of any chain — $146.6 billion of the roughly $300 billion in circulating stablecoin supply sits on Ethereum, a 48.8% share, as institutional issuance and real-world asset infrastructure keep landing there first. For fintech teams building payments, settlement, or treasury tooling on top of that supply, Ethereum is the default chain to get right.

That dominance is also a compliance pressure point. Regulators in major economies — including the US, EU, UK, and Singapore — have moved stablecoins under banking-style prudential regimes, requiring full reserve backing, licensed issuers, and guaranteed redemption rights. Audit trails, reconciliation pipelines, and on-chain compliance forensics are no longer optional, and the RPC layer connecting an application to the chain is now infrastructure a regulator can ask about. A provider with opaque pricing, no compliance certifications, and unpredictable uptime is a business risk, not just a technical one.

This guide covers the RPC methods a fintech workload actually calls, how the leading providers perform against those specific requirements, and which infrastructure setup fits stablecoin settlement, on-chain compliance tooling, or multi-chain payment rails.

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Ethereum RPC for fintech: what the workload actually requires

Fintech is not one thing on Ethereum. A stablecoin payments processor calling eth_getLogs tens of thousands of times a day to detect incoming USDC deposits has different infrastructure needs than a compliance team running debug_traceTransaction to reconstruct transaction flows for a regulator. What both share: an RPC layer that returns 429s, times out silently, or bills unpredictably has real financial and regulatory consequences.

Latency and throughput requirements

Fintech workloads on Ethereum are usually not latency-critical in the way MEV or trading bots are. The window is wider than sub-10ms, but reliability and throughput consistency are non-negotiable. A payment processor polling eth_getLogs for deposits needs consistent response times at its polling interval — a p99 spike that doubles response time can cause missed confirmations and broken webhook pipelines.

Throughput needs vary by workload:

• Stablecoin deposit detection: sustained low-to-medium RPS with bursts during high-volume periods (end of day, market events)
• On-chain compliance: high volume of archive reads — balance-at-block, trace replays — often run in batch
• Multi-chain payment rails: fan-out across chains simultaneously; burst tolerance matters more than sustained RPS

For most fintech teams the metric that matters isn’t average latency, it’s p95 and p99 latency under sustained load. A provider averaging 50ms but spiking to 800ms at p99 is worse for payment infrastructure than one averaging 80ms with a 150ms p99.

The 7 Ethereum RPC methods that fintech teams actually call

Method	What it does	Why it matters for fintech
eth_getLogs	Queries event logs, most often ERC-20 Transfer events	Primary method for detecting incoming USDC, USDT, PYUSD, and EURC deposits. Wide historical ranges can require archive access depending on retention.
eth_getTransactionReceipt	Returns confirmation status, gas used, and emitted logs for a transaction	Closes the confirmation loop after a payment or settlement transaction is sent
eth_call	Executes a read-only contract call without broadcasting a transaction	Checks ERC-20 balanceOf, allowance, and compliance state (blacklist/freeze status). Needs archive access for point-in-time queries at a past block.
eth_getBalance	Returns the native ETH balance of an address	Treasury reconciliation depends on this working against arbitrary past blocks, which requires archive access
debug_traceTransaction	Replays a transaction and returns the full execution trace	The method compliance forensics runs when a regulator asks why a stablecoin transfer failed or what internal calls it made. Not every provider exposes this on every plan.
eth_subscribe (WebSocket)	Subscribes to new blocks, pending transactions, or filtered logs in real time	The alternative to polling eth_getLogs — a persistent logs subscription for USDC Transfer events is far more efficient than polling every 12 seconds
eth_getTransactionByHash	Fetches a transaction by its hash	Used alongside the receipt call to reconstruct the full payment record for audit trails

Archive access matters for more of this list than it looks: eth_getLogs over a wide but recent block range runs fine on a full node, but eth_call or eth_getBalance pinned to a historical block number, and every debug_/trace_ call, need archive. For the full method surface, see the Ethereum API reference.

Infrastructure requirements

• Archive access — required for reconciliation, audit, and historical balance queries. Full nodes prune state older than roughly 128 blocks (about 25 minutes on Ethereum), which makes “what did this address hold at block 18,200,000?” unanswerable without it — a question every treasury team eventually asks.
• Dedicated vs shared nodes — production fintech environments cannot share RPC quota with thousands of other users. A single 429 error disrupting a payment flow makes the economics of dedicated infrastructure obvious. Dedicated nodes also give data isolation, which matters when transaction patterns are commercially sensitive.
• Geographic routing — a neobank serving European customers needs EU endpoints; a remittance platform serving Southeast Asia needs APAC nodes. A round trip from Singapore to a US-only endpoint adds 150–200ms to every call.
• MEV protection — for settlement transactions moving meaningful value, protection against front-running and sandwich attacks is worth having on by default rather than bolted on later.
• Security certifications — for teams operating under MiCA, the GENIUS Act, or equivalent frameworks, vendor SOC 2 Type II and ISO 27001 are the baseline. They signal that a provider’s security, availability, and confidentiality controls have been independently audited.

Provider comparison

The table below summarizes public positioning as of August 2026.

Provider	Pricing model	Free tier	Dedicated nodes	Archive & trace	Compliance certs
Chainstack	Flat RU (1 RU/call, 2 RU archive/debug/trace)	Yes — 3M RU/25 RPS, no card required	Yes (Pro plan+)	Full — included from Growth ($49/mo)	SOC 2 Type II + ISO 27001
RouteMesh	Per-request, from $3/1M calls	Yes — free community routing endpoint	No (routing layer, not node infra)	Depends on the upstream provider it routes to	Not published
Uniblock	Per-request, pooled across 55+ providers	Not published on the public site	No (routing layer)	Depends on the upstream provider it routes to	Not published
Blockdaemon	Custom/contractual	No	Yes — Dedicated Node clusters	Full, contractual SLA	SOC 2 Type II + ISO 27001
Infura	Daily credit allowance, method-weighted	Yes — 3M credits/day, 40+ networks	No	Full archive on free tier	Not published
Alchemy	Compute Unit (CU) based, method-weighted	Yes — 30M CU/month, 25 RPS	No standard option	Full archive; trace support varies by chain	SOC 2 Type II (no ISO 27001 published)
Quicknode	Credit-based (chain + method multipliers)	No — 1-month free trial only	Yes	Yes, add-on pricing	SOC 2 Type II + ISO 27001

Provider-by-provider breakdown

Chainstack

Chainstack runs Ethereum RPC infrastructure built around the constraints fintech teams actually hit: flat, predictable billing regardless of method mix, full archive and trace access from a low-cost paid tier, and audited compliance documentation that a vendor-review process can actually use. Global Nodes geo-route automatically across US, EU, and APAC regions, and Dedicated Nodes are available starting from the Pro plan for workloads needing isolated throughput or a specific cloud placement. For teams that need the node inside their own environment for data-sovereignty reasons, Self-Hosted supports Ethereum Mainnet, Sepolia, and Hoodi on a Reth + Prysm client stack.

The debug and trace surface is complete on Ethereum — debug_traceTransaction, trace_block, and related methods are billed at a flat 2 RU regardless of how computationally heavy the trace is. SOC 2 Type II (certified December 2025) and ISO 27001 (certified July 2026) cover security, availability, and confidentiality, and the paid-plan uptime SLA is backed by service credits. MEV protection for Ethereum, BNB Smart Chain, Arbitrum, and Base ships by default on Global Nodes at deployment (it can be turned off from the node’s Add-ons tab) for settlement transactions that need front-running protection. See Chainstack’s blockchain infrastructure for fintech for the full compliance stack, or the plan ladder on pricing: Developer (free, 3M RU/25 RPS), Growth ($49/mo, 20M RU/250 RPS), Pro ($199/mo, 80M RU/400 RPS), Business ($499/mo, 200M RU/600 RPS), Enterprise ($990+/mo, 400M+ RU/unlimited RPS).

Limitations: the free Developer tier (3M RU/25 RPS) is tight for production deposit-detection polling — budget for at least Growth once you’re past prototyping. The Unlimited Node add-on requires a paid base plan.

Fit by workload:

• Stablecoin deposit detection: Excellent — WebSocket subscriptions plus flat-RU billing mean high-volume eth_getLogs polling doesn’t inflate the bill
• On-chain compliance forensics: Excellent — full debug_traceTransaction support, archive at 2 RU flat, dual-certified audit trail for vendor review
• Multi-chain payment rails: Strong, with 70+ chains on one console and one invoice — archive billing stays predictable as chain count grows

RouteMesh

RouteMesh is an intelligent RPC routing layer covering 1,000+ EVM networks, including Ethereum Mainnet, with sub-10ms routing decisions and real-time health scoring across the upstream providers it connects to. On Ethereum specifically it exposes 85 RPC methods through 21 underlying providers, with entry pricing from $3 per million calls and a free community routing endpoint for read traffic.

For fintech payment flows, the pitch is failover: if one upstream provider degrades or goes down, RouteMesh’s health scoring reroutes traffic automatically, which matters when a stuck deposit-detection pipeline has a real financial cost. It routes a portion of its Ethereum traffic to a pool of providers that includes Chainstack alongside others. Customers publicly named include cross-chain infrastructure like LI.FI, which reports routing 97% of its EVM RPC calls through the platform.

Limitations: RouteMesh doesn’t operate its own archive or dedicated node infrastructure — depth and trace coverage depend entirely on which upstream provider a given request lands on, which is opaque from the caller’s side. No published SOC 2 or ISO 27001 certification of its own, since it isn’t a node operator.

Fit by workload:

• Stablecoin deposit detection: Strong for redundancy — automatic failover across 21 providers reduces the chance a single outage breaks a polling loop
• On-chain compliance forensics: Limited — archive depth isn’t something RouteMesh controls or guarantees directly
• Multi-chain payment rails: Excellent fit, since the product is built specifically for multi-provider, multi-chain routing at scale

Uniblock

Uniblock is a managed multi-chain infrastructure layer spanning 300+ blockchains, including Ethereum, through 55+ underlying RPC providers pooled behind one API. It ships three product tiers: Unified JSON-RPC for raw RPC access, Unified APIs for higher-level token, NFT, market-data, and webhook queries, and Direct Provider APIs for pass-through access to a specific upstream provider. The company reports 4,000+ developers and 3,000+ projects using the platform, with customers including Plume Network, Stellar, and Oku Trade, and raised $5.2M in March 2026.

For a fintech reconciliation pipeline, the Unified APIs layer is the differentiator: instead of hand-rolling a second service to resolve token balances and prices from raw logs, a Unified API call returns pre-resolved token and market data alongside plain RPC, which cuts a build step out of a payment reconciliation stack. Pooling 55+ providers also gives rate-limit headroom that a single-provider setup doesn’t have.

Limitations: no published SOC 2 or ISO 27001 certification, and no dedicated node option — it’s an aggregation and API layer, not node infrastructure. Archive and trace depth depend on which upstream provider a request routes to.

Fit by workload:

• Stablecoin deposit detection: Good — webhooks reduce polling overhead, though log-detection reliability still depends on the upstream provider behind a given request
• On-chain compliance forensics: Moderate — no certified compliance documentation of its own to hand a vendor-review team
• Multi-chain payment rails: Strong — Unified APIs simplify a stack that needs balance and market data across many chains without separate integrations per chain

Blockdaemon

Blockdaemon is institutional-grade blockchain infrastructure built for regulated financial institutions rather than self-serve developer teams, reporting more than 400 institutional customers. Its RPC API and Dedicated Node clusters run alongside MPC custody wallets, a policy engine, and staking services, all bundled for banks, exchanges, and asset managers building tokenization, stablecoin, or custody products. It holds SOC 2 Type II and ISO 27001 certification, matching Chainstack and Quicknode as the certified providers in this comparison.

For a fintech team that’s already an institutional buyer — a bank’s digital assets desk, an exchange’s custody arm — Blockdaemon’s bundled compliance and custody stack removes integration work a smaller team would otherwise assemble from separate vendors. That bundling is also the trade-off: it’s built for a different buyer than a self-serve fintech startup.

Limitations: no published self-serve pricing and no free tier — onboarding runs through a sales process, which is a mismatch for early-stage or mid-size fintech teams that want to start building today. Not the right fit outside the institutional buyer it’s built for.

Fit by workload:

• Stablecoin deposit detection: Good for institutional buyers already on the platform; a heavy lift to onboard for a lighter-weight deposit-detection use case alone
• On-chain compliance forensics: Excellent — dual certification and contractual SLA are exactly what a regulated institution’s vendor review is looking for
• Multi-chain payment rails: Good — broad chain coverage bundled with custody and staking, aimed at institutions consolidating multiple vendors into one

Infura

Infura has run Ethereum infrastructure since 2016 and remains one of the most widely used providers in the ecosystem, serving as the default RPC backend for MetaMask. For fintech teams standardized on ConsenSys tooling, that ecosystem alignment carries real weight. Current pricing: a permanent free Core plan (3M credits/day across 40+ networks, full archive access included), Developer at $50/month (15M credits/day), Team at $225/month (75M credits/day), and custom Enterprise. Its Decentralized Infrastructure Network (DIN), backed by Microsoft and Tencent among others — with Chainstack as one of the DIN partners — adds failover redundancy at the infrastructure level, though DIN failover is an enterprise-tier feature.

Infura’s credit model weights methods differently depending on load and namespace; the current per-method weighting isn’t published on the pricing page itself, so a fintech team with a heavy eth_getLogs or debug_traceTransaction mix should model their expected credit consumption against Infura’s own credit-cost documentation before committing to a tier, rather than assume the daily allowance covers it.

Limitations: no published SOC 2 or ISO 27001 certification as of this writing, which is a real gap for fintech vendor reviews that treat certification as a baseline filter. No standard dedicated node product.

Fit by workload:

• Stablecoin deposit detection: Good — reliable and MetaMask-aligned, but model credit consumption for a polling-heavy pattern before committing to a tier
• On-chain compliance forensics: Moderate — archive is included even on the free tier, but the lack of published compliance certification limits fit for regulated environments
• Multi-chain payment rails: Good — broad chain support and DIN redundancy, though the credit model adds modeling overhead as chain count grows

Alchemy

Alchemy is the most developer-friendly platform in this comparison, with the richest tooling surface beyond raw RPC — Notify webhooks for event-driven deposit detection, the Transact API for transaction simulation and retry logic, and a free tier of 30M CU/month at 25 RPS that covers a meaningful amount of development and staging traffic before a team commits to a paid plan.

Alchemy’s Compute Unit model weights methods individually: eth_getLogs costs 60 CU, eth_call costs 26 CU, and eth_getTransactionReceipt costs 20 CU, billed at $0.45 per million CU for the first 300M CU on the pay-as-you-go tier and $0.40 per million after. For a log-heavy deposit-detection workload, that per-method weighting means the effective cost per actual API call runs meaningfully higher than a flat-rate alternative — worth modeling against your specific call mix before committing to volume. Alchemy’s pay-as-you-go pricing adds up fast once you’re past the free tier — see the current rate comparison before committing to volume.

Limitations: no standard dedicated node product, a real gap for fintech teams needing isolated throughput. No published ISO 27001 certification (SOC 2 Type II only). Trace API support varies by chain — confirm availability on Ethereum mainnet specifically for your account tier before relying on it for compliance forensics.

Fit by workload:

• Stablecoin deposit detection: Good — Notify webhooks cut polling overhead, but CU costs on eth_getLogs at production volume need validating against your own mix
• On-chain compliance forensics: Good — archive access is solid, but no dedicated node option and no ISO 27001 limit fit for the most compliance-sensitive teams
• Multi-chain payment rails: Moderate — broad chain coverage, but CU weighting varies per chain and needs separate modeling for each

Quicknode

Quicknode pairs a strong latency reputation with the most complete compliance posture of the direct competitors here: SOC 2 Type II and ISO 27001 certification, both confirmed on its current security documentation. Pricing runs from a one-month free trial (no paid commitment, but no permanent free tier once it ends) through Build ($49/mo), Accelerate ($249/mo), Scale ($499/mo), Business ($999/mo), three Business+ tiers ($1,499–$2,999/mo), and custom Enterprise. Hybrid Dedicated nodes and Marketplace add-ons extend the base platform for teams that need dedicated throughput or specialized APIs.

Credits are chain-based rather than purely method-based: Ethereum calls carry a 20-credit base rate, with a 2x multiplier on advanced APIs (trace and debug namespaces) and up to 4x on calls classified as “large” — a bracket that broad-range eth_getLogs queries can fall into depending on result size. Teams scaling past the free trial often find credit consumption outpaces what the headline per-credit rate suggested, so it’s worth running your own numbers through a cost calculator before committing to a tier.

Limitations: no permanent free tier — the trial converts to a paid plan or the account goes inactive. Credit multipliers on advanced and large calls make cost modeling for an archive- or trace-heavy fintech workload harder to pin down from the pricing page alone.

Fit by workload:

• Stablecoin deposit detection: Strong — among the best latency in this comparison, though credit costs on large-range eth_getLogs calls are worth checking against your polling pattern
• On-chain compliance forensics: Strong — full trace support and dual certification make it viable for regulated environments, at a materially higher credit cost per trace call
• Multi-chain payment rails: Good — wide chain coverage and Marketplace add-ons, but per-chain credit consumption needs monitoring as volume grows

Real-world performance benchmark

Ethereum is one of the chains tracked on the Chainstack performance dashboard and on compare.chainstack.com, both updating live across providers and regions. For a fintech workload, the methods worth benchmarking before committing to a provider are:

• eth_getLogs over a realistic block range for your deposit-detection window
• eth_getTransactionReceipt — the confirmation call after payment submission
• eth_call at the current block, for balance and allowance checks
• WebSocket logs subscription stability over 24+ hours — a dropped subscription is a missed deposit

Method-weighted providers look cheaper per credit or CU on paper; the number that actually matters is cost per real call against your specific method mix, not the sticker rate. Run the four checks above from your production region before committing — compare.chainstack.com gives a fast top-level read, and the Grafana dashboard breaks it down by method and region if you need that level of detail.

How to choose an Ethereum RPC provider for fintech

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

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. That single formula is the difference between a provider’s sticker price and what a fintech team actually pays once eth_getLogs and debug_traceTransaction dominate the request mix.

Provider	Unit weight (eth_getLogs)	Effective cost per 1M calls
Chainstack	1 RU (flat)	~$2.45 at Growth plan base rate; $15 at overage
Alchemy	60 CU	~$27 at $0.45/1M CU (PAYG)
Quicknode	20 credits base, up to 4× on large-range calls	Not published per method — model your own range before committing
Infura	Weighted, not published per method	Check Infura’s current credit-cost documentation for your call mix

For workloads with an unpredictable method mix — the normal case for a compliance team — flat-rate billing removes a variable a CFO otherwise has to model manually. See the cost comparison article for worked examples, or run your own numbers through the interactive cost calculator.

2. Archive, trace, and debug method access

This is where reconciliation, audit trails, and compliance forensics live. Confirm archive is included in your target plan rather than a paid add-on layered on top — on Chainstack it’s included from Growth ($49/month) at a flat 2 RU per call, whatever the trace depth. Check whether debug_* and trace_* namespaces are exposed at all, since not every provider enables them by default, and whether eth_call at a historical block number works on your plan tier before you build a reconciliation pipeline that assumes it does.

3. Free tier reality

A permanent, standalone free plan (Chainstack, Infura, Alchemy) is a materially different offer than a time-limited trial that requires a paid plan or goes inactive afterward (Quicknode). For a team prototyping before a compliance sign-off, or evaluating multiple providers side by side, a no-card-required permanent tier removes friction a trial doesn’t.

4. When dedicated infrastructure matters

Three concrete signals it’s time to move off a shared endpoint: sustained throughput above roughly 100 RPS on a single workload, a compliance requirement for data isolation from other tenants, or a need for custom node configuration (specific tracers, gas caps, or connection pooling) that a shared endpoint can’t offer.

5. Compliance posture and regulatory fit

If the application operates under MiCA, the GENIUS Act, or an equivalent regime, vendor compliance documentation isn’t optional. SOC 2 Type II and ISO 27001 together are the baseline most vendor-security reviews expect — Chainstack holds both (see its SOC 2 Type II and ISO 27001 certifications), and so do Quicknode and Blockdaemon among the providers here. Alchemy holds SOC 2 Type II only; Infura, RouteMesh, and Uniblock have not published either. For a team where vendor audits are part of an annual compliance cycle, this alone should narrow the shortlist before pricing enters the conversation.

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

What matters is what a provider offers at your specific tier, not whether an SLA exists somewhere on the pricing page. Chainstack’s support runs Community on the free Developer plan, Standard (under 24 hours, 24×5) from Growth through Business, a Professional add-on at $100/month (under 6 hours, 24×7), and a Premium add-on at $1,000/month (under 1 hour, 24×7). Getting an actual engineer to answer an eth_getLogs timeout question quickly is the difference between shipping and stalling — check what each provider actually names at the tier you’ll be paying for, not the enterprise tier’s marketing copy.

7. Latency consistency vs. average latency — the p95/p99 argument

Average latency is the wrong number to optimize for a payment pipeline. A provider’s p95 and p99 under sustained load determine whether a webhook pipeline misses confirmations during a traffic spike, which is a more useful benchmark than a headline “fastest” claim. Ethereum is tracked on both compare.chainstack.com and the Grafana performance dashboard — use either to check tail latency against your own call pattern rather than relying on a provider’s own benchmark page.

Getting started with Ethereum fintech infrastructure on Chainstack

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

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

For latency-sensitive settlement flows or compliance workloads that need isolated throughput, evaluate Dedicated Nodes after the initial deploy — available inside the same project without a separate contract.

import { ethers } from "ethers";

// WebSocket connection — real-time subscription instead of polling
const provider = new ethers.WebSocketProvider("YOUR_CHAINSTACK_WSS_ENDPOINT");

// Minimal ERC-20 Transfer event ABI
const TRANSFER_ABI = ["event Transfer(address indexed from, address indexed to, uint256 value)"];
const token = new ethers.Contract("YOUR_TOKEN_CONTRACT_ADDRESS", TRANSFER_ABI, provider);

// Detect incoming stablecoin transfers to a deposit address
token.on("Transfer", (from, to, value, event) => {
  if (to.toLowerCase() === "YOUR_DEPOSIT_ADDRESS".toLowerCase()) {
    console.log(`Deposit: ${ethers.formatUnits(value, 6)} tokens from ${from}`);
    console.log(`Tx hash: ${event.log.transactionHash}`);
  }
});

📖 For the full integration guide, see the Chainstack Ethereum tooling documentation.

Need testnet ETH? Grab some from the Chainstack Sepolia faucet — up to 0.5 Sepolia ETH every 24 hours, directly from the console.

🤖 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

Ethereum’s stablecoin dominance and the regulatory frameworks now treating stablecoins as payment instruments mean the RPC provider decision carries compliance weight in a way it didn’t a few years ago. The method mix that actually drives cost — eth_getLogs, eth_call, eth_getTransactionReceipt, debug_traceTransaction — varies enough between providers that the cheapest headline rate is rarely the cheapest production rate.

• For regulated fintech needing certified compliance and full trace access: Chainstack (flat billing, dual certification) or Quicknode (dual certification, strongest latency reputation)
• For stablecoin deposit detection at scale: Chainstack (flat RU on eth_getLogs, WebSocket subscriptions) or RouteMesh (multi-provider failover)
• For on-chain compliance forensics: Chainstack (archive at 2 RU flat, full debug/trace) or Blockdaemon (institutional bundle with contractual SLA)
• For developer tooling and early-stage prototyping: Alchemy (30M CU free tier, Notify webhooks, Transact API)
• For multi-chain aggregation without per-chain integration work: Uniblock (Unified APIs across 300+ chains)

Frequently asked questions

Q: What RPC methods do I need for stablecoin deposit detection on Ethereum?

The core pattern uses either eth_getLogs (HTTP polling every 12 seconds with an ERC-20 Transfer topic filter) or a WebSocket logs subscription for real-time detection, then eth_getTransactionReceipt to confirm the deposit. Confirm your provider doesn’t apply a high method multiplier to eth_getLogs specifically — on Chainstack it’s a flat 1 RU; on CU/credit-weighted providers it typically costs more than a simple read.

Q: Do I need archive node access for my Ethereum fintech application?

Yes, eventually. Live deposit detection and current balance checks work on full nodes, but treasury reconciliation, audit trails, and historical balance-at-block queries all need archive access. On Chainstack, archive is included from the Growth plan ($49/month) at 2 RU per call — confirm archive is included in your target plan on any provider before going to production, since some gate it behind a separate add-on.

Q: How do I migrate from a public Ethereum RPC to a production provider without downtime?

Run a fallback provider pattern: set your production provider (e.g., Chainstack) as primary and keep the existing endpoint as secondary for 24–48 hours while monitoring latency and error rates. Once performance is stable, drop the fallback. Modern libraries support this natively — ethers.js FallbackProvider, viem’s fallback transport.

Q: What is the latency difference between providers for eth_getLogs?

It varies by region and provider tier, and published averages rarely reflect your actual geographic and method mix. The most reliable check is running your own comparison from your production region — compare.chainstack.com gives a fast top-level view, and the Grafana performance dashboard breaks results down by method and region for a deeper look.

Q: Which providers are suitable for regulated fintech under MiCA or the GENIUS Act?

SOC 2 Type II and ISO 27001 together are the baseline most regulated fintech vendor reviews expect. Chainstack holds both — see its SOC 2 Type II and ISO 27001 certifications — and so do Quicknode and Blockdaemon. Alchemy holds SOC 2 Type II only; Infura has not published either as of this writing. Teams with a formal vendor-attestation requirement should limit their shortlist to the dual-certified providers.

Q: How does Chainstack’s pricing compare to Alchemy for a stablecoin-heavy workload?

Using Alchemy’s published per-method CU weights (eth_getLogs 60 CU, eth_call 26 CU, eth_getTransactionReceipt 20 CU) against a representative mix of 50/30/20% at 80M calls/month works out to roughly $1,350/month on Alchemy’s pay-as-you-go tier. The same 80M calls on Chainstack’s Pro plan (80M RU included) is a flat $199/month — a real difference once method weighting is priced in, not just the headline per-unit rate.

Additional resources

• How to get an Ethereum RPC endpoint in 2026
• Ethereum available methods — Chainstack Docs
• Ethereum on the Chainstack blog
• Ethereum official developer documentation
• Chainstack pricing