We Need Solana, Tron, and Ethereum Support on Day One: Who Can Guarantee That Coverage With SLAs?

Why “day one” multi-chain coverage is non‑negotiable

• These days, most product roadmaps are launching with at least one workload from Solana (focused on throughput/fees), one from EVM (related to ecosystem and tooling), and a Tron rail for USDT and settlement right from the get-go. If you have a gap in any of these three, it can really throw a wrench in key user journeys like payments, on-chain state, or analytics.
• Relying on public RPC just doesn't cut it for production use. You won’t get any uptime commitments, response-time guarantees, or troubleshooting SLAs when things get rough with traffic spikes or reorgs. By going with a vendor that offers contractual SLAs and keeps an eye on things with active monitoring, you can totally take that risk off the table.

The scorecard: who supports Solana, Tron, and Ethereum with SLAs?

Here’s a rundown of the vendors that can reliably offer day-one coverage for all three networks, along with some solid service guarantees. We've highlighted what makes each one stand out, the promises they’re making, and a few things to keep an eye on.

QuickNode

What You Get

• Chain coverage: Access RPCs for Ethereum, Solana, and Tron, complete with documentation and practical guidance for each platform. Check it out here.
• Enterprise uptime: Enjoy a solid 99.99% uptime, backed by SLA guarantees and a setup that spans multiple regions and cloud services. More details here.
• Data plumbing: Get managed Streams for reliable, exactly-once delivery of chain data to S3, PostgreSQL, Snowflake, or webhooks--perfect for indexing or business intelligence from the get-go. Plus, Solana's got you covered with both real-time and historical backfill. Dive deeper here.
• Solana subscriptions: We provide guidance on using WebSockets, Yellowstone Geyser gRPC, and Streams--helping you make informed choices between latency and manageability. Find out more here.

Watch-outs

• Make sure to double-check the uptime metric in the contract language (like whether it’s for each endpoint or the entire platform, any p95 latency targets, and service credits). Marketing pages might brag about 99.99%, so it's important that the MSA reflects that too. (quicknode.com)

When to Prefer

• If you're looking for a single vendor to manage EVM, SVM, and TVM all in one place, and you want a push-based data plane (Streams) right from the start, then this is the way to go. Check out quicknode.com for more info!

Chainstack

What You Get

• Chain Coverage: You’ll get support for Ethereum, Solana, and full Tron, which includes all three Tron namespaces: /jsonrpc (for read-only operations), /wallet (for full node operations), and /walletsolidity (for confirmed data). Check it out at chainstack.com.
• SLA: They have a solid 99.9% quarterly uptime commitment, and if they don't meet that, you can earn service credits. Their homepage boasts a realized uptime of over 99.99%, but just keep in mind the official SLA is set at 99.9%. More details can be found here: chainstack.com.
• Throughput and Plans: The Growth plan offers up to 250 RPS and 20M RU per month, which is perfect for proof of concepts that still need to meet performance benchmarks. You can find more info at chainstack.com.
• Tron Caveats Addressed: Just a heads up--MetaMask isn’t supported on Tron, and some JSON-RPC methods are read-only. If you want to write data, make sure to use /wallet. Also, be aware that WebSocket event subscriptions aren’t supported on Tron right now, so you should plan to use polling or gRPC instead. Learn more here: chainstack.com.

Watch-Outs

• If you're looking for SLA terms that exceed 99.9% or have specific response-time goals in mind, you'll want to discuss that when you're considering the Enterprise tier. Check it out here: (chainstack.com)

When to Prefer

• You’re looking for clear Tron ergonomics and a simple 99.9% SLA baseline. Plus, you have the flexibility to mix global shared nodes and dedicated nodes down the line. Check it out here: (docs.chainstack.com)

Ankr

What you get

• Chain coverage: We’ve got you covered with Ethereum, Solana (HTTPS/WSS), and Tron (JSON-RPC + native HTTP/gRPC). Take your pick from tiered plans or go for an Enterprise option with custom SLAs. Check it out here.
• Solana specifics: For Solana users, we offer WSS along with REST/gRPC paths and some enterprise features like region orchestration and preferred chains. You can find more details here.

Watch-outs

• Keep in mind that certain Solana RPC methods might be restricted based on your plan. If you're on the Enterprise plan, you can unlock what you need--just make sure to check per-method compatibility in your SOW. (ankr.com)

When to Prefer

• If you're looking for flexible per-chain orchestration, gRPC (where it’s available), and you're all set to define custom SLAs at the Enterprise tier, this is the way to go. Check it out here!

GetBlock

What You Get

• Chain Coverage: You’ll have access to over 100 chains, complete with dedicated nodes for Solana, Tron, and Ethereum. You can choose between full or archive options, benefit from tracing features for ETH and BSC, and even select your preferred region. Check it out here: getblock.io.
• SLA: We've got documented availability tiers: Shared has 99%, Dedicated sits at 99.9%, and if you opt for Dedicated with a load balancer, you're looking at 99.99%. Plus, there are clear response-time targets and support channels to keep you covered. More details here: getblock.io.
• Dedicated Node Tiers: You can choose between “High” and “Standard” tiers with specific SLAs (going up to 99.9% for High). We've made some recent infrastructure upgrades and simplified the pricing for both full and archive nodes. Dive deeper into the details: docs.getblock.io.

Watch-outs

• If you’re looking for “reads + writes + websockets + archive + low latency” on all three chains, make sure to double-check each interface for every chain in the order form (like Solana Geyser, Tron /walletsolidity). You can find more details here.

When to Prefer

• You’re looking for single-tenant isolation for each chain, aiming for a robust 99.99% uptime through load balancing, along with straightforward incident response SLAs. Check out getblock.io for more details!

Solana specialist you may add on top: Helius

What You Get

• It's all about Solana, but packed with enterprise-quality features: LaserStream gRPC (a drop-in replacement for Geyser), Sender (which allows for parallel submissions using Helius + Jito), regional endpoints, and “latency and uptime SLAs” tailored for Enterprise. Trusted by leading Solana teams; SOC 2 compliant. Check it out at helius.dev.

When to choose this option

• If your Solana path really needs low latency--think trading, market data, or if you want a smooth maker/taker experience--you should definitely pair Helius for Solana streaming/transaction landing with a multi-chain provider for ETH/TRX RPC. Check it out here: (helius.dev)

Architecture patterns we recommend for day one

1) Single-provider foundation with multi-chain SLAs, plus Solana streaming

• Base RPC: Use QuickNode or Chainstack for your ETH, TRX, and SOL RPC + WebSockets. If you need streams, go with QuickNode, or add gRPC wherever it fits. Check it out here.
• Solana streaming: For the fastest slot, transaction, and account feeds, go with LaserStream. Plus, use Sender to broadcast through Jito and Helius at the same time. Get the details here.
• Why: This setup gives you a single point of contact for your RPC SLAs across all three chains, plus you’ll have a specialist on hand for Solana’s more unpredictable workloads.

2) Dual-provider Active-Active with Health Checks

• Primary: We're talking dedicated nodes or global clusters here, boasting an impressive 99.9%-99.99% SLA.
• Secondary: This is where another vendor's dedicated or shared cluster comes into play, featuring sticky failover and circuit breakers to keep everything running smoothly.
• Mechanics: Health probes for each chain check on things like p95 latency, 5xx/timeout rates, and slot/head lag, which helps us route traffic in a smart way. For Tron, we split our reads (/walletsolidity) and writes (/wallet) to keep things consistent. Check out the details here.
• Why: This setup kicks single-vendor dependency to the curb and gives you the chance to A/B test latency like a pro.

1. Single-tenant dedicated options when compliance is key

• If you’re dealing with SOC requirements or need to keep your data separated, go for dedicated nodes (like GetBlock’s High tier + LB, or something similar from other providers). This setup will help you achieve a rock-solid 99.99% SLA and ensure consistent throughput. (getblock.io)

Practical, chain-specific notes that save time

Solana

• When getting started, pick your subscription model: WebSockets for simplicity, Geyser gRPC if you're after low latency and more operations, or managed Streams for a push-based approach that gives you exactly-once delivery and backfills. Just a heads-up, don’t mix them until you’ve nailed down your reconciliation rules. (quicknode.com)
• For transaction landing, try out parallel submission using Sender (Jito + Helius). This can help lower drop rates during those crazy volatile slots. And remember to keep idempotency on the client side. (helius.dev)
• It’s a good idea to set up regional endpoints near your order-matching or signing services. Make sure your provider covers FRA, AMS, NYC, TYO, SGP, or similar locations.

Tron

• Get to know the three API surfaces: /jsonrpc is mainly for reading, /wallet handles writing, account stuff, and transactions, while /walletsolidity is for finalized reads. Forget about MetaMask for this one--go with TronLink or TronWeb and use /wallet for sending. Just a heads-up, WebSocket subscriptions aren’t on the table, so you’ll need to either poll or go with HTTP/gRPC. (docs.chainstack.com)
• If you're working with exchange-like flows, make sure to route user balance checks through /walletsolidity and for any pending transfers, keep an eye on /wallet. Once everything is confirmed, you can reconcile the two. (docs.chainstack.com)

Ethereum

• If you’re looking for historic data, make sure "archive + tracing" is on your checklist. Some providers might only offer this with dedicated or enterprise plans. For instance, GetBlock has got you covered with ETH full nodes that include tracing. (getblock.io)
• When it comes to a smooth user experience that depends on the mempool, check how reliable their WebSocket connections are and how they handle backpressure. If possible, take a look at any extra features they offer, like multi-region broadcasting. (quicknode.com)

SLAs that actually matter: how to write them

Requesting Measurable, Enforceable SLOs for Each Chain and Interface

• Uptime per Endpoint: We're looking at a target of 99.99% monthly uptime for both RPC HTTPS and WebSocket, broken down by chain and region. Make sure to list any exclusions clearly. For what it's worth, QuickNode is boasting 99.99%, Chainstack sticks to 99.9% by default, and GetBlock offers 99.99% on load-balanced dedicated nodes. (quicknode.com)
• Latency: We need to keep an eye on the p95 and p99 round-trip times, and it’s important to classify those by method type (like reads vs. writes). Let’s also connect credits to any misses, using a rolling window for accuracy.
• Data Delivery Guarantees: For Streams or gRPC, we should insist on “exactly-once” delivery semantics, manage reorgs effectively, and set max-lag SLOs for the busiest paths. (quicknode.com)
• Incident Response: It’s essential to define the initial acknowledgment and ETA windows, along with clear escalation paths. GetBlock has their response-time commitments laid out by severity; we can definitely use that as a benchmark if your vendor isn't being specific. (getblock.io)
• Credits with Substance: Let’s implement tiered service credits that ramp up based on the number of outage minutes and, where feasible, apply those credits automatically.

Reality Check for DIY Fallback

• So, if you're thinking about self-hosting nodes as a backup plan, keep in mind that the SLAs for hyperscaler “Node Engine” can be a lot lower than what you’d get with vendor-managed multi-region clusters. For example, Google Cloud’s Blockchain Node Engine has a monthly SLO of at least 99.0%. It’s best to treat self-hosting as a backup option rather than relying on it as your primary setup right from the start. (cloud.google.com)

A launch blueprint you can execute this week

Day 0-1: Choose Your Vendors and Regions

• Start by picking a main vendor (either QuickNode or Chainstack) that covers ETH, SOL, and TRX in the locations that are closest to your users.
• If landing transactions or streaming is a big deal for you, consider adding a Solana specialist like Helius for LaserStream and Sender. Check them out here: (helius.dev).
• If you really need to ensure top-notch latency isolation, it might be wise to include GetBlock’s dedicated nodes with load balancing for the chain that's the most sensitive. This will help you lock down 99.99% uptime on that route. More info here: (getblock.io).

Day 2-3: Wire Endpoints and Data Paths

• RPC: Set up your HTTPS and WebSocket endpoints for each chain. If you're working with Tron, make sure to connect the /wallet (for writes) and /walletsolidity (for confirmed reads). Check out the details here.
• Streams/Subscribe: Get your Streams pipelines rolling with QuickNode for blocks, receipts, and logs, or use LaserStream if you're dealing with Solana's gRPC. Don't forget to push your data to S3 or Postgres. More info is available here.
• Health Probes: Deploy some synthetic RPC canaries that will monitor things like p95, error rates, and head/slot lag every 30 seconds. Make sure to export that data to your alerting system!

Day 4-5: Bake in Resiliency

• Routing: Go ahead and set up weighted, health-aware routing between your primary and secondary providers. Don’t forget to configure those circuit breakers for 5xx errors and set timeouts at the SDK level.
• Tx Multi-pathing: For Solana, you’ll want to write via Sender, while for EVM, broadcast across two regions. As for Tron, stick to writing only through /wallet and make sure to reconcile confirmations via /walletsolidity. Check it out at helius.dev.

Day 6: Prove Your SLOs

• Time to put your load testing to the test! Run a load test for each chain to hit that expected P95 TPS. While you're at it, keep an eye on P95 latency, error rates, and stream lag when things get busy. If you're working with Solana, don’t forget to compare WebSockets, gRPC, and Streams to see which model suits your production needs best. Check out the guide here for some helpful tips.
• Now, let’s spice things up with a chaos drill: pick a region or provider and blackhole it. See how quickly you can recover and make sure to track any user-visible error budgets during the process.

Day 7: Lock in the Contract

• Don’t forget to attach the SLO appendix to your MSA! Make sure to include details like uptime per interface, p95/p99 latency, response times, data delivery guarantees, and any credits.

Example acceptance criteria you can copy

• Ethereum RPC HTTPS: You can count on a solid 99.99% monthly uptime. For those in US-East, expect p95 read latency to be around ≤250 ms, while p95 write latency sits at ≤400 ms. When it comes to websocket messages, the p95 delay is ≤300 ms, and there's just a 0.1% max 5xx rate every 15 minutes.
• Solana Streams: It’s all about that exactly-once delivery in finality order! You’ll experience a max lag of ≤1 block for tip subscriptions, and for historical backfill, the throughput is at least N blocks/s. Check it out here.
• Tron: If you're hitting up the /walletsolidity read, you're looking at a p95 of ≤350 ms. For writing with /wallet, expect p95 at ≤450 ms. Just a heads up, JSON-RPC is used strictly for read paths, and there's no need to rely on MetaMask. More details are available here.
• Incident response: In case of issues, the L1 acknowledgment takes less than 20 minutes. For downtime incidents, you can expect an ETA of ≤1 hour, complete with hourly updates--just like GetBlock’s published response SLOs. Get the scoop here.

Cost/ops notes that surprise teams

• When it comes to streaming costs, keep in mind that they really depend on data frequency. Solana is often on the “high-frequency” side for filtered block delivery, so make sure to budget accordingly and consider compressing payloads on the server side. (blog.quicknode.com)
• If you’re working with Ethereum, don’t underestimate the impact of archive and tracing features--they can lead to some dedicated SKU requirements. It’s way better to plan for this now than to find out the hard way during an incident. (getblock.io)
• Tron’s split API model can be a bit tricky since it opens up more paths for integration and monitoring. Be sure to keep track of your source of truth for each state (like pending vs. confirmed) to stay organized. (docs.chainstack.com)

Vendor-by-vendor quick picks

• Looking for just one throat to choke with a 99.99% target and push-based data? Check out QuickNode for RPC + Streams; you can always add Solana Streams or Geyser later if you want. (quicknode.com)
• Want some solid 99.9% SLA language and clear Tron ergonomics? Chainstack’s got you covered. (chainstack.com)
• If you’re after custom SLAs with gRPC/WSS flexibility and adaptable RU economics, Ankr's the way to go. (ankr.com)
• Need single-tenant isolation with a 99.99% guarantee via load balancing and quick incident acknowledgments? Check out GetBlock Dedicated + LB. (getblock.io)
• Looking for a latency edge for trading or order flow on Solana? Helius LaserStream + Sender might be just what you need. (helius.dev)

The bottom line

If you're looking to support Solana, Tron, and Ethereum right from the start, you’ve got some solid options that come with real service level agreements (SLAs). Just remember to keep your service level objectives (SLOs) and data model in mind when making your choice.

Consider teaming up with a multi-chain provider that guarantees uptime between 99.9% and 99.99%. If your needs around throughput and latency are pretty demanding, it’s wise to partner that up with a specialist in Solana. Make sure you outline clear, measurable acceptance criteria and don’t skip the failover drills before directing any traffic.

That’s the key to rolling out multi-chain support on time--and ensuring you can get some good sleep at night--without having to build an infrastructure team that’s as large as your app team.

7Block Labs can set up this architecture in just a week! We’re here to help you choose the right providers, negotiate SLAs, handle the wire routing and streams, and make sure your SLOs are validated under load. Let’s get your users making transactions right from day one!