Top 6 Stable RPC providers for stablecoin infrastructure in 2026

Stable is an EVM-compatible Layer 1 built by the team behind USDT0, purpose-designed so that dollars — not a volatile gas token — are the unit of account for every transaction. A key 2026 fact about it: gas is paid in USDT0, it runs on StableBFT (a CometBFT/Tendermint proof-of-stake consensus) with block times around 0.7 seconds, and mainnet launched in December 2025 alongside its STABLE governance token.

That design is exactly what makes RPC provider choice matter more than usual here. On a general-purpose chain, a dropped RPC call is an annoyance. On a settlement chain where every transaction moves real dollars — payroll runs, cross-border remittances, merchant payouts, treasury sweeps — a missed eth_getLogs page or a stale balance read is a reconciliation break that an accountant has to chase down. Stable also ships several behaviors that will surprise teams porting Ethereum tooling directly: a permanently empty public transaction pool, a native gas token that reports 18 decimals while its ERC-20 twin reports 6, and a handful of standard Ethereum methods that behave differently or don’t work at all.

This guide covers what stablecoin infrastructure workloads actually demand from a Stable RPC endpoint, the methods that carry that load, and how the six Stable RPC providers we found supporting the chain compare for this use case.

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

Chainstack is our top pick for stablecoin infrastructure on Stable (an editorial judgment, not a benchmark result), based on archive access with the debug namespace, WebSocket, published SOC 2 Type II and ISO 27001 certification, and the flat-fee Unlimited Node add-on on one platform. Chainstack publishes this page and is one of the 6 listed providers, and no latency benchmark covers Stable, so see how we compared before relying on the ranking. Dedicated Nodes are not supported for Stable on Chainstack yet. Last updated October 29, 2026. The best fit by need:

• Best for archive-backed reconciliation with audited compliance: Chainstack (archive and debug, SOC 2 Type II and ISO 27001, Unlimited Node from $149/month; Global Nodes for Stable Mainnet only).
• Best as a failover layer on top of a primary provider: RouteMesh (routes across upstream providers; archive and debug depend on the upstream; no independently published compliance attestation).
• Best for predictable flat per-response pricing and a dedicated cluster: Dwellir (1 credit per response, Unlimited Nodes from $119/month, dedicated cluster listed at $4,860/month; no published SOC 2 Type II).
• Best for simulation, tracing and dispute debugging: Tenderly (SOC 2 Type II; not positioned as a bulk high-throughput endpoint).
• Best as a redundant secondary endpoint: dRPC (load-balanced routing across independent node operators; no published SOC 2 Type II).
• Best for development and testing: Alchemy (Stable Mainnet and Testnet with Debug API and WebSocket; SOC 2 Type II; no standard dedicated nodes).

Provider comparison: 6 Stable RPC providers for stablecoin infrastructure (2026)

Stable launched in late 2025, so the provider landscape is still forming — but it is not empty. The six providers below all support Stable today, including RouteMesh, which confirms Stable Mainnet in its routed chain list. The table summarizes public positioning for the stablecoin infrastructure use case as of October 2026. The rank is the editorial order used in this article (see how we compared), not a benchmark result: no latency benchmark covers Stable (see latency data).

Rank	Provider	Best for	Stable support	Archive & debug	Why it matters for stablecoin infrastructure	Compliance	Pricing model
1	Chainstack	Archive-backed reconciliation with SOC 2 Type II and ISO 27001	Mainnet, full + archive	Yes (debug on archive)	Archive + debug + WebSocket + audited compliance on one platform	SOC 2 Type II, ISO 27001	RU-based; Unlimited Node flat-fee option
2	RouteMesh	Failover layer on top of a primary provider	Mainnet (routed across upstream providers)	Depends on routed upstream	Automatic failover across upstream providers for continuous settlement uptime	Not independently published (routing layer)	Per-request (varies by key, chain, method)
3	Dwellir	Flat per-response pricing and a dedicated cluster option	Mainnet (HTTPS + WebSocket)	Debug APIs listed; archive depth not published	Flat per-response pricing and a dedicated cluster for steady load	Not published	1 credit per response ($49–$999/mo; cluster $4,860/mo)
4	Tenderly	Simulation, tracing and dispute debugging	Mainnet (officially listed)	Simulation & tracing	Simulation and tracing for stablecoin contract disputes	SOC 2 Type II	Credit/unit-based
5	dRPC	Redundant secondary endpoint	Mainnet (routed)	Varies by route	Decentralized load-balancing for redundancy	Not published	Pay-per-request
6	Alchemy	Development and testing (Mainnet and Testnet listed)	Mainnet (RPC, Debug API, WebSocket); testnet listed	Debug API; no Trace API	Developer tooling; archive depth and dedicated nodes not published	SOC 2 Type II	CU-based

Note: As of October 2026 we found no Stable (chain ID 988) listing for Quicknode, Uniblock or OnFinality — teams standardized on those stacks will need one of the providers above for Stable. Verify current support before committing, as the landscape is moving fast.

How we compared Stable RPC providers for stablecoin infrastructure

Disclosure: this comparison is published by Chainstack. Chainstack is one of the 6 listed providers and is ranked first, so read the ranking as a vendor perspective and check the figures against the official pages linked in each provider section.

Criteria. Each provider is compared on the same attributes: Stable support, archive and debug availability, WebSocket, compliance documentation (published SOC 2 Type II and ISO 27001), pricing model and fit for the workloads described above (log-indexing sweeps, receipt-driven confirmation, reconciliation reads at historical blocks). The order is editorial judgment for stablecoin workloads. It is not a benchmark result, and no benchmark of Stable RPC latency was used to set it.

Sources. Provider details come from each provider’s public pages and documentation, summarized on this page as of October 2026 unless a section says otherwise (Dwellir pricing is marked as checked October 9, 2026). The Stable network facts used here (chain ID 988, USDT0 gas token, about 0.7 second block time, public RPC limit of 1,000 requests per 10 seconds per IP) match Stable’s mainnet information page, which we read on October 29, 2026. Chainstack’s platform uptime is shown as 99.99%+ platform uptime (status.chainstack.com, Stable 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; the status page also lists scheduled maintenance and incident notices. It is separate from contractual SLAs and is not a guarantee. Competitors’ uptime or SLA figures on this page are as stated by the providers.

Not covered. Other Stable RPC providers may exist beyond these 6. Quicknode, Uniblock and OnFinality had no Stable listing when we checked (October 2026), so they are not compared. Regulatory statements (MiCA, GENIUS Act) are summarized from the sources linked in the article; this article is not legal advice.

Latency data. None of the 6 providers is measured here: see the latency data section for the dated statement and a command you can run from your own region. For general guidance, see how to measure RPC latency (P50, P95, P99).

💡 Already building on Stable? Jump straight to the Stable tooling docs or deploy a production endpoint in minutes with Chainstack Global Nodes.

Stablecoin infrastructure on Stable: RPC requirements

Stablecoin infrastructure is not a latency-bragging-rights workload the way MEV or high-frequency trading is — but it is unforgiving about correctness and completeness. A payment processor, treasury system, or issuer backend does not need sub-millisecond block reads; it needs every USDT0 transfer accounted for, every receipt confirmed, and every historical balance reproducible on demand for reconciliation and audit. That shifts the infrastructure priorities toward archive access, log-indexing throughput, WebSocket reliability, and compliance posture rather than raw speed.

Stable’s design pushes those priorities further. Because USDT0 is the native gas token, fee estimation returns dollar-denominated values, and settlement logic has to treat gas and payment as the same asset class. And because Stable runs a private, aggregated mempool — the public transaction pool always responds empty — teams cannot rely on pending-transaction subscriptions to detect inbound payments. Confirmation has to be receipt-driven and block-driven, not mempool-driven.

The decimal trap you must handle first

Before any of the methods below, internalize this: the native USDT0 gas balance carries 18 decimals, but the USDT0 ERC-20 token (contract 0x779Ded0c9e1022225f8E0630b35a9b54bE713736) reports 6 decimals. Both are called USDT0. Confusing them is a factor of 10^12 error — reading a gas balance with formatUnits(value, 6) will overstate a user’s dollars by a trillion. Use formatEther() for native gas balances and formatUnits(value, 6) for the ERC-20 token. In our assessment, every stablecoin integration on Stable depends on getting this right.

The methods that carry stablecoin infrastructure

These are the RPC calls a Stable stablecoin backend leans on hardest:

• eth_sendRawTransaction — submits signed USDT0 transfers and settlement transactions. On Stable this is your only submission path, since there is no public mempool to broadcast into and observe.
• eth_getTransactionReceipt — the confirmation primitive. With ~0.7s blocks and fast finality, receipts are your source of truth that a payment settled and which Transfer logs it emitted.
• eth_getLogs — the reconciliation workhorse, scanning USDT0 Transfer events to match on-chain movement against your ledger. Watch the range: like other EVM chains on Chainstack, the query window is capped by your plan — 100 blocks on Developer, 10,000 on paid tiers (see the eth_getLogs limitations doc) — so any backfill or historical sweep must paginate. This does not require an archive node — log scans by block range run fine on full nodes.
• eth_getBalance and eth_call — balance checks for native USDT0 gas (eth_getBalance) and the ERC-20 balanceOf (eth_call). Historical balance-at-block reads for reconciliation require an archive node.
• eth_subscribe — WebSocket logs and newHeads subscriptions for real-time payment notifications. Because pending-tx subscriptions return nothing on Stable, logs on the USDT0 contract is how you detect inbound payments the moment they land in a block.
• eth_blockNumber — the settlement cursor. A stablecoin indexer tracks its last processed block and reconciles forward.
• debug_traceTransaction and debug_traceBlockByNumber with callTracer — trace internal transfers for audit trails and dispute resolution. Parity-style trace_* methods return -32601 on Stable; the debug namespace on an archive node is the supported replacement — use callTracer in place of trace_block or trace_transaction. eth_createAccessList and eth_simulateV1 also return errors and aren’t usable. eth_getProof does work, but with a catch: it requires an explicit block number (latest is rejected) and returns a Cosmos IAVL proof rather than a standard Ethereum Merkle-Patricia proof — not a drop-in for typical Ethereum state-proof verification tooling, a direct consequence of Stable’s CometBFT-derived execution layer.

For the full method surface and Stable-specific behavior, see the Ethereum JSON-RPC reference and the Stable methods documentation — Stable is Ethereum-compatible, so standard EVM method semantics apply except where the tooling docs note otherwise.

Infrastructure requirements

Put together, a serious stablecoin operation on Stable needs: archive access for reconciliation and audit reads at historical blocks; debug/trace on archive for dispute resolution; stable WebSocket connections for real-time payment detection; log-indexing throughput high enough to keep paginated eth_getLogs sweeps flowing without hitting your plan’s rate limits; and a compliance posture — SOC 2 Type II, contractual uptime — that a regulated payments or fintech team can put in front of an auditor. The public Stable RPC at https://rpc.stable.xyz is capped at 1,000 requests per 10 seconds per IP and returns HTTP 429 past that, which is fine for testing and not enough for production.

Stable RPC rate limits and free tiers compared

Rate limits and billing units differ between providers, so the same traffic can cost different amounts. This table uses only the figures given elsewhere on this page; “Not stated here” means this article gives no figure. Dwellir pricing was checked October 9, 2026; other figures are as of the page’s October 2026 summary and were not re-verified.

Provider	Free tier	Free-tier rate limit	Paid tiers or flat-rate throughput	Billing unit
Chainstack	Developer plan, 3M request units	25 RPS	Growth $49/month (20M RU, 250 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), no per-request overage; Dedicated Nodes not supported for Stable yet	Request units (RU); eth_getLogs range capped at 100 blocks on Developer and 10,000 on paid tiers
RouteMesh	Free community endpoint for Stable	Not stated here	Per-request, varies by key type, chain and method	Per request
Dwellir	Free plan, 100,000 responses per day	20 responses per second	Developer $49/month (25M responses, 100 per second); Growth $299/month (150M, 500 per second); Scale $999/month (500M, 5,000 per second); Unlimited Nodes from $119/month for 25 to 1,000 RPS; Stable dedicated cluster $4,860/month, 99.99% SLA on custom terms	1 credit per response
Tenderly	Not stated here	Not stated here	Credit/unit-based across platform tiers; no figures on this page	Credits or units
dRPC	Public endpoints for testing	Not stated here	Pay-per-request	Per request
Alchemy	Free monthly allowance (size not stated here)	Not stated here	CU-based; no standard dedicated nodes	Compute units (method-weighted)
Stable public RPC (rpc.stable.xyz)	Free, no SLA	1,000 requests per 10 seconds per IP (HTTP 429 above that)	Not applicable	Per IP

Chainstack alternatives for stablecoin infrastructure on Stable

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 RouteMesh: RouteMesh adds automatic failover across upstream providers (Chainstack is among its listed providers) and has a free community endpoint for Stable, but archive and debug availability depend on the upstream serving each request and it publishes no compliance attestation of its own; Chainstack runs the nodes directly with archive, debug and SOC 2 Type II and ISO 27001. RouteMesh can be layered in front of a direct provider.
• Chainstack vs Dwellir: Dwellir offers flat per-response pricing from a free plan, Unlimited Nodes from $119/month and a dedicated Stable cluster at $4,860/month, which Chainstack does not offer for Stable yet (Dedicated Nodes are not supported); but Dwellir publishes no SOC 2 Type II report or Stable archive depth. Chainstack publishes both certifications and offers archive with the debug namespace.
• Chainstack vs Tenderly: Tenderly is built around simulation, tracing, Web3 Actions and alerting, and is SOC 2 Type II certified, but is optimized for observability and developer workflows rather than as the sole high-RPS endpoint; Chainstack is the throughput-oriented option with archive and Unlimited Node flat-fee tiers. The two can be paired.
• Chainstack vs dRPC: dRPC routes across independent node operators, which suits a redundant secondary and read-heavy queries, but archive and debug availability vary by route and no SOC 2 Type II attestation is published; Chainstack offers archive and debug on a node it operates and publishes SOC 2 Type II and ISO 27001.
• Chainstack vs Alchemy: Alchemy lists both Stable Mainnet and Testnet with RPC, Debug API, WebSocket, Bundler and Gas Manager and is SOC 2 Type II certified, whereas Chainstack Global Nodes support Stable Mainnet only (Testnet is available via Self-Hosted); Alchemy has no standard dedicated nodes and has not published archive depth for Stable, while Chainstack offers archive and Unlimited Node flat-fee tiers.

In-depth reviews: 6 Stable RPC providers for stablecoin infrastructure (2026)

1. Chainstack: best for archive-backed reconciliation with audited compliance

Verdict: Archive access with the debug namespace, WebSocket, SOC 2 Type II and ISO 27001, and the flat-fee Unlimited Node add-on on one platform. Trade-off: RU-based metering means modeling the read/write mix to pick a tier, Dedicated Nodes are not supported for Stable yet, and no Stable latency data exists for Chainstack or any listed provider. Official pricing.

Chainstack delivers Stable RPC through the Chainstack Partner Network, built around the requirements this article lists for stablecoin backends: Global Nodes with geo-balanced, auto-scaling routing, full and archive node types, and the debug namespace (debug_traceCall, debug_traceTransaction, debug_traceBlockByNumber) exposed directly on archive — covering the reconciliation-to-dispute-resolution loop this use case demands on one platform.

For stablecoin infrastructure, in our assessment, the archive tier is the key differentiator: historical balance-at-block reads for reconciliation and debug_traceTransaction for audit trails both need it. Global Nodes cover most teams, with a production endpoint deployable in a couple of minutes; Dedicated Nodes aren’t supported for Stable yet. For data-sovereignty requirements, Self-Hosted deployment is also available for both Stable Mainnet and Stable Testnet.

On pricing, Chainstack’s free Developer plan includes 3M request units and 25 RPS, with paid tiers from Growth ($49/mo, 20M RU, 250 RPS) through Business ($499/mo, 200M RU, 600 RPS) and Enterprise (from $990/mo). For a steady backend the Unlimited Node add-on is the more relevant option: flat monthly RPS tiers (25 RPS at $149/mo up to 500 RPS at $3,199/mo) with no per-request overage — so reconciliation sweeps and continuous log indexing don’t turn into a variable bill.

Compliance is, in our assessment, a deciding factor for regulated stablecoin work. Chainstack holds audited SOC 2 Type II and ISO 27001 certifications, and its stablecoin infrastructure offering — introduced for Stable Mainnet in August 2026 — is described by Chainstack as already backing institutional stablecoin issuers and wallets (Chainstack’s own statement; no customers are named on this page).

Limitations: RU-based metering means teams must model their read/write mix to pick the right tier, and the very cheapest hobbyist endpoints from public-good providers will always undercut a managed platform on raw price — Chainstack positions itself on archive depth and compliance, not on being free.

Fit by workload:

• Stablecoin payments & settlement: Strong (our assessment; Chainstack publishes this page) — archive, debug, WebSocket, and flat-fee throughput cover the full reconciliation-to-real-time loop.
• Regulated fintech / issuers: Strong (our assessment) — audited SOC 2 Type II and ISO 27001 are the certifications a vendor review typically asks for.
• Analytics & reconciliation indexing: Strong — archive depth plus Unlimited Node throughput keep continuous log-indexing sweeps affordable at scale.

2. RouteMesh: best as a failover layer on top of a primary provider

Verdict: Routing layer with automatic failover across upstream providers and a free community endpoint for Stable. Trade-off: archive and debug depend on the upstream serving each request, and no compliance attestation is published for RouteMesh itself. Official site (pricing is on this page only: per-request, varies by key type, chain and method).

RouteMesh is an RPC routing layer that states it spans 1,000+ EVM networks, including Stable Mainnet, and aggregates multiple underlying node providers behind sub-10ms routing decisions (RouteMesh’s own figures), real-time health scoring, and automatic failover. For a stablecoin backend, that failover layer is the pitch: if one upstream provider degrades mid-settlement, RouteMesh’s health scoring is designed to route the next call around it.

RouteMesh lists LI.FI (routing 97% of its EVM RPC calls across 60+ chains, per RouteMesh), Vaults.fyi, and DAMM Capital among its customers, and ships an MCP server and Cursor integration for agent-driven infrastructure work. Pricing is per-request, varying by key type, chain, and method; RouteMesh routes across multiple upstream providers (Chainstack is among its listed providers) and offers a free community endpoint for Stable.

Limitations: As a routing layer rather than a direct node operator, archive depth and debug/trace availability depend on whichever upstream is serving a given request rather than being a property you configure directly — teams needing guaranteed archive access for reconciliation should pair RouteMesh with a direct provider rather than rely on it as the sole endpoint of record.

Fit by workload:

• Stablecoin payments & settlement: Strong — automatic failover keeps real-time detection running through upstream provider hiccups.
• Redundancy / read failover: Strong (our assessment) — RouteMesh states sub-10ms routing and health scoring exist specifically for this problem.
• Regulated fintech / issuers: Moderate — no independently published compliance attestation of its own, so pair it with a certified upstream for the audit trail.

3. Dwellir: best for predictable flat per-response pricing

Verdict: 1 credit per response, Unlimited Nodes from $119/month and a dedicated Stable cluster option, with debug APIs listed. Trade-off: no published SOC 2 Type II report, Stable archive depth not published, and a smaller platform surface than the larger providers. Official pricing.

Dwellir is a Swedish RPC provider with a long Polkadot track record that now serves 150+ networks, including Stable Mainnet (chain ID 988) over HTTPS and WebSocket. Shared plans bill one credit per response with no compute-unit weighting, which, in our assessment, makes continuous reconciliation and indexing load easier to budget. Dwellir’s Stable page lists debug APIs on its flat-rate options; Stable returns errors for Parity-style trace_* methods, so the debug namespace is the one that matters here.

Pricing runs from a free plan (20 responses per second, 100,000 responses per day) through Developer at $49/month (25M responses, 100 per second), Growth at $299/month (150M, 500 per second) and Scale at $999/month (500M, 5,000 per second). Unlimited Nodes start at $119/month flat for 25 to 1,000 RPS, and the Stable dedicated cluster is listed at $4,860/month, unmetered, with a 99.99% SLA on custom terms (as stated on its pricing page; contractual terms not read). You can pay in crypto. Pricing checked October 9, 2026.

The gap for the most regulated deployments is compliance disclosure: Dwellir does not publish a SOC 2 Type II attestation, so a fintech vendor review that mandates audited certification will need to raise that directly. Archive depth on Stable is not published either, which matters for historical balance-at-block reads. For teams whose compliance bar is met by contractual uptime rather than a specific attestation, Dwellir is a cost-transparent option.

Limitations: No published SOC 2 Type II report; Stable archive depth not published; smaller platform surface than the tier-one providers (fewer enhanced APIs and analytics extras).

Fit by workload:

• Stablecoin payments & settlement: Strong — flat per-response pricing and a dedicated cluster option, with debug APIs listed.
• Analytics & reconciliation indexing: Strong — response-based pricing suits continuous, high-volume sweeps.
• Regulated fintech / issuers: Moderate — solid infrastructure, but no published audited certification.

4. Tenderly: best for simulation, tracing and dispute debugging

Verdict: Simulation, step-by-step tracing, Web3 Actions and alerting, with SOC 2 Type II. Trade-off: not positioned as a bulk high-throughput RPC, so teams often pair it with a throughput-oriented provider for the settlement hot path; pricing is credit/unit-based and no figures are given on this page. Official pricing link not added: the Tenderly site returned HTTP 429 to an automated check on October 29, 2026.

Tenderly is one of three providers Stable names in its official documentation (with Alchemy and Chainstack), and it occupies a distinctive niche: a full-stack developer platform built around simulation, debugging, and transaction tracing. For stablecoin infrastructure that specialization is valuable — when a settlement transaction reverts or a payout lands in the wrong amount, Tenderly’s contract-level simulation and step-by-step tracing turn a reconciliation dispute into a debuggable event, which is exactly the failure mode a dollar-denominated backend fears most.

Tenderly provides RPC access alongside its dev tooling, so Tenderly can serve as both a build-time and run-time endpoint on Stable mainnet. Its Web3 Actions and alerting also fit stablecoin monitoring well — trigger on a Transfer above a threshold, watch a treasury contract, alert on a failed settlement. Where Tenderly is less of a fit is being the sole high-RPS endpoint behind a processor moving continuous, heavy transaction load; Tenderly is optimized for observability and developer workflows first.

Tenderly is listed here as SOC 2 Type II certified (as stated on this page; not re-verified), which meets the audited-attestation requirement this article uses for regulated work. Pricing is unit/credit-based across its platform tiers.

Limitations: Not positioned primarily as a bulk high-throughput production RPC; teams often pair Tenderly’s debugging and monitoring with a throughput-oriented provider for the settlement hot path.

Fit by workload:

• Stablecoin payments & settlement: Strong — open mainnet RPC plus monitoring, best paired for the heaviest hot paths.
• Contract dispute resolution / audit: Strong (our assessment) — simulation and tracing are Tenderly’s core strength.
• Regulated fintech / issuers: Strong — SOC 2 Type II plus deep observability for audit workflows.

5. dRPC: best as a redundant secondary endpoint

Verdict: Load-balanced routing across independent node operators and public endpoints for testing. Trade-off: archive and debug vary by route, and no SOC 2 Type II attestation is published. Official pricing.

dRPC takes a load-balancer approach: it routes each request across a network of independent node operators to the fastest available route, which hedges against any single operator’s outage. For a stablecoin operation that values redundancy, dRPC’s Stable endpoint can serve as a resilient secondary or as a cost-efficient path for read-heavy balance and log queries.

The trade-off for infrastructure-grade work is transparency. Because requests are routed across third-party operators, archive depth and debug availability vary by route rather than being a guaranteed property of a dedicated node, and this article found no SOC 2 Type II attestation published by dRPC. That is acceptable for redundancy and public read traffic; it is a harder sell as the sole endpoint of record for a regulated backend that needs reproducible historical reads.

dRPC pricing is pay-per-request, and public endpoints are available for testing.

Limitations: No published SOC 2 attestation; archive/debug guarantees depend on the underlying route rather than a dedicated node you control.

Fit by workload:

• Stablecoin payments & settlement: Moderate — strong as a redundant secondary, weaker as the compliance-critical primary.
• Redundancy / failover: Strong — decentralized routing across independent operators is its whole point.
• Regulated fintech / issuers: Limited — no published audited certification.

6. Alchemy: best for development and testing

Verdict: Stable Mainnet and Testnet with RPC, Debug API, WebSocket, Bundler and Gas Manager, plus enhanced APIs and SOC 2 Type II. Trade-off: no standard dedicated nodes, archive depth for Stable not published, no Trace API, and CU-based billing. Official pricing.

Alchemy is another provider Stable lists in its official documentation, and it brings a developer platform with enhanced token and transaction APIs, real-time webhooks, transaction simulation, and a dashboard. For teams already standardized on Alchemy’s SDK, Alchemy’s Stable page lists Mainnet and Testnet with RPC, Debug API, WebSocket, Bundler and Gas Manager support, which makes it a comfortable place to build and test a stablecoin integration.

The catch for this use case is trace coverage and depth. Alchemy’s Stable page lists the Debug API but not the Trace API or gRPC, which fits Stable’s own behavior, and Alchemy does not publish archive depth for Stable, so confirm that before relying on it for reconciliation. Alchemy’s enhanced APIs also abstract some low-level behavior, which is convenient but worth verifying against Stable’s decimal and mempool quirks.

Pricing is CU-based (compute units, method-weighted), with a free allowance of 30M CU per month (Alchemy pricing page, October 29, 2026). Method-weighted CU billing can make costs harder to forecast for teams with high archive or trace usage, so it is worth modeling against a cost calculator before committing to volume. Alchemy’s Trust Center (checked October 29, 2026) lists a SOC 2 Type II report held by Alchemy Insights, Inc., available on request, and no ISO 27001, so attestation is not the gating factor for regulated work — the gating factor is archive depth and dedicated capacity, not attestation.

Limitations: Archive depth for Stable is not published, and there are no standard dedicated nodes — teams needing guaranteed throughput on Stable mainnet must negotiate an enterprise arrangement.

Fit by workload:

• Stablecoin payments & settlement: Good — mature tooling and mainnet RPC with debug and WebSocket, but no standard dedicated nodes.
• Development & testing: Strong (our assessment) — a listed testnet plus enhanced APIs suit a build environment.
• Regulated fintech / issuers: Strong — SOC 2 Type II plus enterprise onboarding fits, with dedicated capacity negotiated separately.

How to choose a Stable RPC provider for stablecoin infrastructure

• Public RPC for testing, managed endpoint for production. The public rpc.stable.xyz endpoint (1,000 req/10s per IP) is fine for a prototype. The moment you are settling real dollars, you need a provider with an SLA, archive access, and headroom above that cap.

• When you need guaranteed throughput. Move to the Unlimited Node add-on when any of these hit: sustained log-indexing that would blow through per-request billing, a compliance requirement for isolated infrastructure, or continuous reconciliation sweeps against archive that need guaranteed throughput rather than shared-endpoint best-effort.

• Archive and debug are non-negotiable for reconciliation. Historical balance-at-block reads and debug_traceTransaction audit traces both require an archive node with the debug namespace. If a provider can’t guarantee archive depth for Stable, it can’t be your reconciliation primary — no matter how fast its latest-block reads are.

• Latency consistency over average latency. For settlement, a p99 spike that stalls a batch payout matters more than a good average. Chainstack Compare did not monitor Stable when this article was updated (October 29, 2026), so measure it yourself (see latency data).

• Enterprise support and audited compliance for regulated products. Stablecoin issuance and payments sit squarely inside frameworks like MiCA and the GENIUS Act. A vendor review will ask for an audited SOC 2 Type II report — not a self-reported claim. According to the information on this page, Chainstack, Alchemy, and Tenderly hold audited SOC 2 Type II; Dwellir, dRPC and RouteMesh did not publish one in the sources used here. For a regulated deployment, that list narrows your options fast.

⚡ Benchmark before you commit: Chainstack Compare did not monitor Stable when this article was updated (October 29, 2026), and no research report covers it. Run a quick latency test against each provider’s endpoint from your target region before committing — a simple curl loop or a k6 script hitting eth_getLogs and eth_getTransactionReceipt is enough to surface meaningful p95/p99 differences.

Stable RPC latency data: not monitored (October 29, 2026)

No latency benchmark applies to Stable. Chainstack Compare did not monitor Stable when this article was updated (October 29, 2026): the live dashboard lists Ethereum, Solana, BNB Chain, Arbitrum, Base, Hyperliquid, Robinhood and Arc. The Chainstack research reports do not cover Stable either. This page therefore cites no latency or probe success rate figures for any of the 6 listed providers, including Chainstack, and the order above says nothing about speed. Chainstack runs Compare and the research reports, so a future Stable measurement would be disclosed the same way.

To compare providers yourself, run the same request against each provider’s Stable endpoint from the region where your application runs and compare the median and the slowest runs (replace YOUR_STABLE_ENDPOINT):

for i in $(seq 1 20); do curl -s -o /dev/null -w "%{time_total} " -X POST YOUR_STABLE_ENDPOINT -H "Content-Type: application/json" -d '{"jsonrpc":"2.0","method":"eth_blockNumber","params":[],"id":1}'; done

See how to measure RPC latency (P50, P95, P99) for percentiles and a longer test, and repeat it with eth_getLogs and eth_getTransactionReceipt, which carry most stablecoin workloads. The public rpc.stable.xyz endpoint is rate-limited, so do not use it as a baseline for provider comparisons.

Choose by use case

For stablecoin payments and settlement

Payment and settlement workloads on Stable are correctness-first: every USDT0 transfer must be detected, confirmed, and reconciled. Concretely that means WebSocket eth_subscribe on the USDT0 contract for real-time inbound detection (pending-tx subscriptions are dead on Stable’s empty mempool), receipt-driven confirmation via eth_getTransactionReceipt, and paginated eth_getLogs sweeps for backfill and reconciliation, respecting whatever block-range cap your plan sets.

In our assessment, Chainstack fits this best (Chainstack publishes this page; see how we compared) because it puts archive, debug, WebSocket, and flat-fee throughput on one SOC 2 Type II platform — the full loop from real-time detection to historical reconciliation without stitching providers together. RouteMesh is a useful failover layer to sit in front of a primary endpoint, Tenderly is a companion for contract-level monitoring and dispute debugging, and Dwellir offers dedicated mainnet nodes with transparent pricing for steady load.

For regulated fintech and issuers

Stablecoin issuers, payment processors, and fintechs operating under MiCA (in force) or the GENIUS Act (signed in July 2025, with rules taking effect by January 2027 at the latest) carry an audit burden that basic RPC access doesn’t address. The demanding requirement here isn’t a specific method — it’s reproducibility and attestation: historical state reads that reconcile exactly, trace-level audit trails for disputes, contractual uptime, and a vendor certification a compliance team can file. That means archive nodes with the debug namespace, an SLA, and an audited SOC 2 Type II report.

On this axis the field narrows to providers with published, audited certifications. Chainstack (SOC 2 Type II and ISO 27001), Tenderly, and Alchemy (both SOC 2 Type II) qualify; Chainstack additionally offers self-serve mainnet archive and — per the supported clients and protocols docs — Self-Hosted deployment for teams that need the node inside their own perimeter for data-sovereignty reasons. Dedicated Nodes aren’t supported for Stable yet. In our assessment, providers without a published attestation should stay out of the regulated hot path (this article is not legal advice).

For reconciliation and payment analytics

Treasury dashboards, merchant-payout reconciliation, and payment analytics on Stable are read-heavy and archive-dependent. The workload is dominated by eth_getLogs Transfer-event sweeps and historical eth_getBalance / eth_call balance-at-block reads. The per-plan block-range cap on eth_getLogs (standard across EVM chains on most providers, not a Stable-specific rule) means this is a high-volume, paginated grind rather than a handful of queries.

The provider question here is throughput economics and archive depth. Per-request billing can make continuous indexing expensive, so Chainstack’s Unlimited Node add-on — flat-fee RPS with archive access — and Dwellir’s response-based flat tiers are the natural fits for a pipeline running reconciliation around the clock.

Getting started with Stable on Chainstack

1. Log in to the Chainstack console (or create an account).
2. Create a new project
3. Select Stable as your blockchain protocol
4. Choose network: Stable Mainnet (managed Global Nodes currently support Mainnet only; Testnet is available via Self-Hosted; Dedicated Nodes aren’t supported for Stable yet)
5. Deploy the node
6. Open Access and credentials and copy your HTTPS and WebSocket endpoints

For reconciliation and audit-trail work, deploy an archive node — that’s what unlocks historical balance-at-block reads and the debug namespace. A full node is enough for real-time payment detection and submission. Archive data and debug/trace are not included on the Developer plan; they need Growth or above. Archive data and debug/trace are not included on the Developer plan; they need Growth or above.

A quick sanity check — confirm you’re on Stable (chain ID 988), handle both of USDT0’s decimal formats, and read the token supply:

import { createPublicClient, http, formatEther, formatUnits } from 'viem';
import { stable } from 'viem/chains';

const client = createPublicClient({
  chain: stable,
  transport: http('YOUR_CHAINSTACK_ENDPOINT'),
});

console.log('Chain ID:', await client.getChainId());
console.log('Block:', await client.getBlockNumber());

// Native USDT0 gas balance -- 18 decimals
const balance = await client.getBalance({
  address: 'YOUR_WALLET_ADDRESS',
});
console.log('Gas balance:', formatEther(balance), 'USDT0');

// USDT0 ERC-20 token -- 6 decimals, NOT 18
// verified from docs.chainstack.com/docs/stable-tooling on 2026-08-16
const USDT0_ERC20 = '0x779Ded0c9e1022225f8E0630b35a9b54bE713736';

const totalSupply = await client.readContract({
  address: USDT0_ERC20,
  abi: [{
    name: 'totalSupply', type: 'function', inputs: [],
    outputs: [{ type: 'uint256' }], stateMutability: 'view',
  }],
  functionName: 'totalSupply',
});
console.log('USDT0 token supply:', formatUnits(totalSupply, 6));

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

🤖 You can also access Chainstack Stable 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 stablecoin infrastructure on Stable in 2026, in our assessment the key decision criterion is this: can your provider guarantee archive-backed reconciliation and audited compliance, not just fast reads? Everything else — throughput tier, WebSocket, tooling — follows from that.

• Stablecoin payments & settlement: Chainstack (our top pick, an editorial judgment; Chainstack publishes this page) — archive, debug, WebSocket, and flat-fee throughput on one SOC 2 Type II + ISO 27001 platform.
• Automatic failover across providers: RouteMesh — health-scored failover (sub-10ms routing per RouteMesh), a layer to sit in front of a primary endpoint.
• Contract monitoring & dispute debugging: Tenderly — simulation and tracing, listed by Stable according to the page’s earlier sections.
• Predictable-cost dedicated capacity: Dwellir — flat per-response pricing with a dedicated cluster option and debug APIs listed.
• Decentralized redundancy: dRPC — load-balanced routing across independent operators as a resilient secondary.
• Development & testing: Alchemy — Stable Mainnet and Testnet with Debug API, WebSocket and enhanced APIs.

Frequently asked questions

Q: Why does my USDT0 balance look a trillion times too big on Stable?

Because Stable’s native gas token USDT0 carries 18 decimals, while the USDT0 ERC-20 token reports 6 decimals — a 10^12 gap. Use formatEther() for native gas balances and formatUnits(value, 6) for the ERC-20 token. In our assessment this is among the most common integration bugs on Stable.

Q: Which providers support Stable mainnet, and does the free tier work for production?

According to this page, Chainstack, RouteMesh, Dwellir, Tenderly, dRPC and Alchemy support Stable mainnet (Alchemy lists both Mainnet and Testnet). As of October 2026 we found no Stable listing for Quicknode, Uniblock, or OnFinality. Free tiers such as the Chainstack Developer plan (3M request units, 25 RPS) or the Dwellir free plan (20 responses per second) suit testing; see the rate limits table. The public rpc.stable.xyz endpoint is capped at 1,000 requests per 10 seconds with no SLA — fine for testing, not for production.

Q: I’m porting an existing Ethereum backend to Stable — what breaks?

Three things trip up most migrations: pending-transaction subscriptions return nothing because Stable’s mempool is private and always empty, so inbound-payment detection has to move to eth_subscribe log watching; Parity-style trace_* methods, eth_createAccessList, and eth_simulateV1 all return errors, so tracing has to go through the debug_* namespace instead; and the native gas token’s 18 decimals versus the ERC-20 token’s 6 decimals is an easy place to introduce a silent unit-conversion bug.

Q: What RPC latency should I expect for Stable settlement detection?

Stable’s ~0.7-second block time and receipt-driven confirmation model make sub-second settlement detection realistic in our assessment, but for batch payouts a p99 latency spike matters more than a good average. Chainstack Compare did not monitor Stable when this article was updated (October 29, 2026), so benchmark your own region with a curl loop or k6 script against eth_blockNumber and eth_getTransactionReceipt before committing to a provider.

Q: Which providers meet compliance requirements for regulated stablecoin issuers?

For MiCA or GENIUS Act workloads, insist on an audited SOC 2 Type II report. Chainstack (SOC 2 Type II plus ISO 27001), Tenderly, and Alchemy are listed here with audited certifications (as stated on this page); Dwellir, dRPC, and RouteMesh did not publish one in the sources used here. Chainstack also offers self-serve mainnet archive and Self-Hosted deployment for isolated infrastructure (Dedicated Nodes aren’t supported for Stable yet).

Q: How does pricing work for a high-volume Stable stablecoin backend?

Per-request models (CU, credits, pay-per-request) get expensive under continuous log-indexing and reconciliation load. Chainstack’s Unlimited Node add-on replaces per-request billing with flat monthly RPS tiers ($149/mo for 25 RPS up to $3,199/mo for 500 RPS); Dwellir offers flat per-response tiers from $49/mo and Unlimited Nodes from $119/mo. Both give a backend a fixed infrastructure line instead of a bill that scales with transaction volume.

Additional resources

• Stable methods documentation — Chainstack Docs
• Chainstack request unit billing explained
• Stable official documentation
• Chainstack pricing

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, a rate limits and free tiers comparison, alternatives guidance, numbered provider sections with one-line verdicts and official pricing links, a dated statement that Stable latency is not monitored with a command to measure it, a sourced Chainstack platform uptime statement, corrected vendor pricing, limits and certification details, and wording clarifications.
• August 17, 2026: Original publication.