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

Summary: If your go-live hinges on Solana, Tron, and Ethereum support from day one, you need providers that offer multi-chain RPC, production tooling, and hard uptime commitments—not marketing fluff. This post maps the vendors that can actually sign SLAs across all three chains and shows how to architect a launch-ready stack with measurable SLOs, failover, and streaming.

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

• Most product roadmaps now ship with at least one Solana workload (throughput/fees), one EVM workload (ecosystem/tooling), and a Tron rail (USDT/settlement) from the start. A provider gap on any of the three blocks a key user journey—payments, on-chain state, or analytics.
• Public RPC won’t cut it for production: no uptime commitments, no response-time guarantees, and no troubleshooting SLAs when traffic spikes or reorgs happen. That’s a risk you can remove with contractual SLAs and active monitoring by the vendor.

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

Below are the vendors that can credibly provide day-one coverage for all three networks and will back it with defined service levels. For each, we summarize what’s unique, what’s guaranteed, and what to watch.

QuickNode

What you get

• Chain coverage: Ethereum, Solana, and Tron RPCs, with docs and operational guidance for each. (quicknode.com)
• Enterprise uptime: 99.99% uptime with SLA-backed guarantees and multi-region, multi-cloud architecture. (quicknode.com)
• Data plumbing: managed Streams for exactly-once delivery of chain data to S3/PostgreSQL/Snowflake/webhooks—useful for indexing or BI from day one. Solana is supported with real-time and historical backfill. (quicknode.com)
• Solana subscriptions: guidance across WebSockets, Yellowstone Geyser gRPC, and Streams—so you can pick latency vs. manageability trade-offs explicitly. (quicknode.com)

Watch-outs

• Validate the uptime metric in the contract language (e.g., per-endpoint vs. platform-wide, p95 latency targets, service credits). Marketing pages often cite 99.99%; ensure the MSA exhibits match. (quicknode.com)

When to prefer

• You need one vendor to run EVM + SVM + TVM with a single support channel and want a push-based data plane (Streams) on day one. (quicknode.com)

Chainstack

What you get

• Chain coverage: Ethereum, Solana, and full Tron support—including all three Tron namespaces: /jsonrpc (read-only), /wallet (full node ops), and /walletsolidity (confirmed data). (chainstack.com)
• SLA: documented 99.9% quarterly uptime commitment with service credits. Homepage markets 99.99%+ realized uptime, but the contractual SLA is 99.9%. (chainstack.com)
• Throughput and plans: Growth plan highlights 250 RPS and 20M RU/month; good for POCs that must still meet performance gates. (chainstack.com)
• Tron caveats addressed: MetaMask is not supported on Tron; JSON-RPC is read-only for some methods; use /wallet for writes. WebSocket event subscriptions on Tron aren’t currently supported—plan polling or gRPC accordingly. (chainstack.com)

Watch-outs

• If you need SLA language above 99.9% or bespoke response-time objectives, negotiate that at Enterprise tier. (chainstack.com)

When to prefer

• You value clear Tron ergonomics and a straightforward 99.9% SLA baseline, with an option to mix global shared nodes and dedicated nodes later. (docs.chainstack.com)

Ankr

What you get

• Chain coverage: Ethereum, Solana (HTTPS/WSS), and Tron (JSON-RPC + native HTTP/gRPC) with tiered plans and Enterprise “custom SLA” options. (ankr.com)
• Solana specifics: WSS plus REST/gRPC paths and enterprise knobs (region orchestration, preferred chains). (ankr.com)

Watch-outs

• Some Solana RPC methods may be gated by plan; Enterprise can enable what you need—confirm per-method compatibility in your SOW. (ankr.com)

When to prefer

• You want flexible per-chain orchestration, gRPC where available, and are ready to define custom SLAs at Enterprise tier. (ankr.com)

GetBlock

What you get

• Chain coverage: 100+ chains with dedicated nodes for Solana, Tron, Ethereum; full vs. archive options, tracing for ETH/BSC, and region selection. (getblock.io)
• SLA: documented availability tiers—Shared 99%, Dedicated 99.9%, and Dedicated with load balancer 99.99%; clear response-time targets and support channels. (getblock.io)
• Dedicated node tiers: “High” vs. “Standard” with stated SLAs (up to 99.9% at High). Recent infra upgrades and simplified pricing for full and archive nodes. (docs.getblock.io)

Watch-outs

• If you need “reads + writes + websockets + archive + low latency” across all three chains, verify each interface per chain in the order form (e.g., Solana Geyser, Tron /walletsolidity). (docs.getblock.io)

When to prefer

• You want single-tenant isolation per chain with a 99.99% target via LB and clear incident response SLAs. (getblock.io)

Solana specialist you may add on top: Helius

What you get

• Solana-only, but with enterprise-grade features: LaserStream gRPC (drop-in Geyser replacement), Sender (parallel submission via Helius + Jito), regional endpoints, and “latency and uptime SLAs” at Enterprise. Used by top Solana teams; SOC 2. (helius.dev)

When to prefer

• Your Solana path is latency-critical (trading, market data, maker/taker UX). Pair Helius for Solana streaming/tx landing with a multi-chain provider for ETH/TRX RPC. (helius.dev)

Architecture patterns we recommend for day one

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

• Base RPC: QuickNode or Chainstack for ETH/TRX/SOL RPC+WebSockets; add Streams (QuickNode) or gRPC where needed. (quicknode.com)
• Solana streaming: LaserStream for lowest-latency slot/tx/account feeds; Sender to broadcast via Jito and Helius simultaneously. (helius.dev)
• Why: you get one throat to choke for RPC SLAs across all three chains, and a specialist for Solana’s highest-variance workloads.

1. Dual-provider active-active with health checks

• Primary: Dedicated nodes or global clusters with 99.9%–99.99% SLA.
• Secondary: Another vendor’s dedicated/shared cluster, with sticky failover and circuit breakers.
• Mechanics: Per-chain health probes (p95 latency, 5xx/timeout rate, slot/head lag) drive weighted routing. For Tron, split reads (/walletsolidity) vs writes (/wallet) to ensure consistency. (docs.chainstack.com)
• Why: removes single-vendor dependency and lets you A/B test latency.

1. Single-tenant dedicated where compliance demands it

• For SOC or data-segmentation needs, deploy dedicated nodes (GetBlock High tier + LB; or similar from others) to lock 99.99% SLA and predictable throughput. (getblock.io)

Practical, chain-specific notes that save time

Solana

• Choose your subscription model up front: WebSockets (easy), Geyser gRPC (low latency, more ops), or managed Streams (push-based, exactly-once, backfills). Don’t mix until you define reconciliation rules. (quicknode.com)
• For tx landing, parallel-submit via Sender (Jito + Helius) to reduce drop rates during volatile slots. Preserve idempotency on client. (helius.dev)
• Plan for regional endpoints close to your order-matching or signing services; verify provider has FRA/AMS/NYC/TYO/SGP or equivalents.

Tron

• Understand the three API surfaces: /jsonrpc (mostly read), /wallet (writes, account/tx), /walletsolidity (finalized reads). MetaMask won’t help—use TronLink/TronWeb and hit /wallet for sends. WebSocket subscriptions aren’t supported; poll or use HTTP/gRPC. (docs.chainstack.com)
• For exchange-like flows, route user balance checks to /walletsolidity and pending transfer monitoring to /wallet, then reconcile after confirmation. (docs.chainstack.com)

Ethereum

• If you need historic traces, ensure “archive + tracing” is explicitly included (some providers require dedicated/enterprise SKUs). GetBlock, for example, can provide ETH full nodes with tracing. (getblock.io)
• For mempool-sensitive UX, confirm WebSocket reliability and backpressure behavior; if available, evaluate provider add-ons such as multi-region broadcast. (quicknode.com)

SLAs that actually matter: how to write them

Ask for measurable, enforceable SLOs per chain and interface:

• Uptime per endpoint: e.g., 99.99% monthly uptime for RPC HTTPS and WebSocket, per chain/region; enumerate exclusions explicitly. QuickNode markets 99.99%; Chainstack guarantees 99.9% by default; GetBlock offers 99.99% on LB’d dedicated nodes. (quicknode.com)
• Latency: p95 and p99 round-trip thresholds by method class (reads vs writes). Tie credits to misses over a rolling window.
• Data delivery guarantees: for Streams or gRPC, require “exactly-once” semantics, reorg handling, and max-lag SLOs for hot paths. (quicknode.com)
• Incident response: initial acknowledgment and ETA windows, plus escalation paths. GetBlock publishes response-time commitments per severity; use those as a model if your vendor is vague. (getblock.io)
• Credits with teeth: tiered service credits that scale with outage minutes, applied automatically where possible.

Reality check for DIY fallback

• If you plan to self-host nodes as a safety net, note that hyperscaler “Node Engine” SLAs can be materially lower than vendor-run multi-region clusters (e.g., Google Cloud’s Blockchain Node Engine SLO is ≥99.0% monthly). Use self-host only as a tertiary, not your day-one backbone. (cloud.google.com)

A launch blueprint you can execute this week

Day 0–1: Select vendors and regions

• Pick a primary (QuickNode or Chainstack) covering ETH/SOL/TRX in regions nearest your users.
• Add Solana specialist (Helius) for LaserStream + Sender if tx landing/streaming is critical. (helius.dev)
• If latency isolation is mandatory, add GetBlock dedicated nodes with LB for the most sensitive chain to lock 99.99% uptime on that path. (getblock.io)

Day 2–3: Wire endpoints and data paths

• RPC: provision HTTPS and WebSocket endpoints per chain; for Tron, wire /wallet (writes) and /walletsolidity (confirmed reads). (docs.chainstack.com)
• Streams/subscribe: stand up Streams pipelines (QuickNode) for blocks/receipts/logs, or LaserStream for Solana gRPC; push to S3/Postgres. (quicknode.com)
• Health probes: deploy synthetic RPC canaries that check p95, error rate, and head/slot lag every 30s; export to your alerting.

Day 4–5: Bake in resiliency

• Routing: set weighted, health-aware routing across primary/secondary providers. Configure circuit breakers on 5xx and timeouts at the SDK level.
• Tx multi-pathing: Solana writes via Sender; EVM broadcast to two regions; Tron writes only through /wallet and reconcile confirmation via /walletsolidity. (helius.dev)

Day 6: Prove your SLOs

• Load test per chain to your expected P95 TPS; capture p95 latency, error rate, and stream lag under load. For Solana, test WebSockets vs gRPC vs Streams to confirm the model you’ll use in production. (quicknode.com)
• Chaos drill: blackhole a region/provider; verify failover time-to-recover and user-visible error budgets.

Day 7: Lock the contract

• Attach the SLO appendix to your MSA: uptime per interface, p95/p99 latency, response times, data-delivery guarantees, and credits.

Example acceptance criteria you can copy

• Ethereum RPC HTTPS: 99.99% monthly uptime, p95 read latency ≤250 ms in US-East; p95 write latency ≤400 ms; p95 websocket message delay ≤300 ms; 0.1% max 5xx rate per 15 min.
• Solana Streams: exactly-once delivery in finality order; max lag ≤1 block for tip subscriptions; historical backfill throughput ≥N blocks/s. (quicknode.com)
• Tron: /walletsolidity read p95 ≤350 ms; /wallet write p95 ≤450 ms; JSON-RPC used only for read paths; no reliance on MetaMask. (docs.chainstack.com)
• Incident response: L1 ack <20 minutes; ETA in ≤1 hour for downtime incidents, with hourly updates—mirroring GetBlock’s published response SLOs. (getblock.io)

Cost/ops notes that surprise teams

• Streaming costs are data-frequency dependent; Solana tends to be “high-frequency” for filtered block delivery—budget accordingly and compress payloads server-side. (blog.quicknode.com)
• Archive + tracing on Ethereum can trigger dedicated SKU requirements—plan for it rather than discovering during an incident. (getblock.io)
• Tron’s split API model means more integration paths and monitoring targets; write down your source of truth per state (pending vs. confirmed). (docs.chainstack.com)

Vendor-by-vendor quick picks

• Need one throat to choke with 99.99% target and push-based data? QuickNode for RPC + Streams; add Solana Streams or Geyser later if needed. (quicknode.com)
• Want clear 99.9% SLA language and explicit Tron ergonomics? Chainstack. (chainstack.com)
• Prefer custom SLAs with gRPC/WSS breadth and flexible RU economics? Ankr. (ankr.com)
• Require single-tenant isolation with 99.99% via LB and fast incident acks? GetBlock Dedicated + LB. (getblock.io)
• Solana latency edge for trading or order flow? Helius LaserStream + Sender. (helius.dev)

The bottom line

If you must support Solana, Tron, and Ethereum on day one, you have credible options with real SLAs—but you need to choose with your SLOs and data model in mind. Pair a multi-chain provider that will sign 99.9–99.99% uptime with a Solana specialist if your throughput/latency needs demand it, define measurable acceptance criteria, and run failover drills before you push traffic. That’s how you ship multi-chain on time—and sleep at night—without building an infra team the size of your app team.

7Block Labs can stand up this architecture in a week: we’ll help you pick providers, negotiate SLAs, wire routing and streams, and validate SLOs under load. Let’s get your users transacting on day one.