Can you recommend a Solana RPC provider with enhanced APIs for specific workloads?

When developers ask for a Solana RPC provider with enhanced APIs, they usually mean one of three things: they need WebSocket subscriptions that stay connected, they need to query historical or account data without hitting a shared public endpoint, or they are running a workload (trading bot, indexer, wallet) that outgrows free public RPC. The short answer is that OnFinality provides Solana RPC over HTTP and WebSocket, with dedicated node options when you need more control over capacity. The longer answer is about matching features to your actual workload, which is what this article covers.

Which Solana RPC setup fits your workload?

Before comparing providers, identify what your application actually does. Solana's JSON-RPC surface is broad, and "enhanced" means different things depending on whether you are reading accounts, streaming events, or replaying history.

If you are in the first row, a managed shared RPC plan is usually enough. If you are in rows two through five, plan for a dedicated or private endpoint so your traffic is not competing with unrelated users.

What "enhanced APIs" means on Solana

Solana does not have a single official "enhanced API" label the way some EVM chains have trace or debug namespaces. Instead, enhanced access usually refers to a combination of the following capabilities. Confirm each one with your provider before you commit.

• WebSocket subscriptions. Methods such as accountSubscribe, logsSubscribe, slotSubscribe, and signatureSubscribe push updates instead of requiring polling. This is essential for real-time UIs and bots.
• Archive and history access. Being able to call getBlock, getTransaction, and getSignaturesForAddress for older slots. Many public endpoints only serve recent data.
• Higher request throughput. The ability to send more requests per second without being throttled, which matters for indexers and backfills.
• Dedicated capacity. A private endpoint or dedicated node so your performance is not affected by other tenants.
• Consistent connection handling. WebSocket connections that survive long idle periods, which many free tiers do not guarantee.

If a provider cannot clearly describe how they handle these five areas, treat the "enhanced" claim with caution.

Solana chain settings at a glance

When you connect to Solana through OnFinality, use the following settings. These match the chain configuration for Solana Mainnet.

For development and testing, use Solana Devnet rather than pointing test traffic at mainnet. Devnet has its own faucet and airdrop flow, and it keeps your mainnet usage clean.

Testing a Solana endpoint before you commit

The fastest way to evaluate any Solana RPC provider is to run the same small set of calls against each candidate and compare behavior, not marketing copy. Start with a basic health check:

curl -s https://solana.api.onfinality.io/public \
  -X POST \
  -H "Content-Type: application/json" \
  -d '{
    "jsonrpc": "2.0",
    "id": 1,
    "method": "getHealth"
  }'

A healthy node returns {"jsonrpc":"2.0","result":"ok","id":1}. If it does not, stop there.

Next, test the calls that matter for your workload. For a wallet, check getLatestBlockhash and getFeeForMessage. For an indexer, try getSignaturesForAddress on an address with a long history and see whether the provider returns older signatures or truncates. For a bot, open a WebSocket and subscribe to logs:

const ws = new WebSocket("wss://solana.api.onfinality.io/public-ws");

ws.onopen = () => {
  ws.send(JSON.stringify({
    jsonrpc: "2.0",
    id: 1,
    method: "logsSubscribe",
    params: [{ mentions: ["<YOUR_PROGRAM_ID>"] }, { commitment: "confirmed" }]
  }));
};

ws.onmessage = (event) => {
  const msg = JSON.parse(event.data);
  console.log("log notification", msg.params?.result);
};

Leave the connection open for a few minutes. If it drops while idle, that provider will not work for subscription-based features without extra reconnection logic.

Comparing Solana RPC providers on the features that matter

Use a feature matrix rather than a single "best" label. The table below shows how to think about the main options, with OnFinality listed first.

When you evaluate, ask each provider three questions: how long do WebSocket connections stay open when idle, how far back does history go, and what happens when you exceed your plan's request rate. The answers separate a real production option from a demo endpoint.

When a dedicated Solana node is the better call

Shared RPC plans are cost-effective for most read-heavy applications. But some workloads justify a dedicated node:

• You run a trading system where latency variance matters more than average latency.
• You backfill large ranges of Solana history and do not want to be throttled mid-job.
• You need predictable capacity during network congestion, when public endpoints slow down.
• You want isolation from other tenants so a noisy neighbor cannot affect your throughput.

A dedicated node is not automatically faster for every request, but it removes the variability that comes from sharing infrastructure. If your application's reliability depends on consistent RPC behavior, that isolation is often worth it.

A practical migration and rollout checklist

Moving from a public endpoint to a managed or dedicated Solana RPC provider is mostly about avoiding surprises. Work through this list before you cut over production traffic.

1. Inventory your RPC calls. List every method your app uses, including WebSocket subscriptions. This tells you which features you cannot compromise on.
2. Run a parallel test. Point a staging environment at the new endpoint and compare responses, latency, and error rates against your current setup.
3. Check WebSocket behavior under idle and load. Subscribe, wait, and confirm the connection survives. Then subscribe to a busy program and watch for dropped messages.
4. Verify history depth. Query an old signature or block and confirm the provider returns it.
5. Add failover. Configure a secondary endpoint in your client so a single provider issue does not take down your app.
6. Monitor after cutover. Track error rates, p95 latency, and WebSocket reconnects for at least a week.

For a broader framework that applies across chains, see how to choose an RPC provider.

Common pitfalls with Solana RPC

A few issues show up repeatedly when teams move to a new Solana endpoint:

• Assuming all endpoints serve full history. Many do not. Test before you rely on it.
• Ignoring commitment levels. processed, confirmed, and finalized behave differently. Pick the level your application can tolerate.
• Polling instead of subscribing. If you need real-time updates, WebSocket subscriptions are usually cheaper and faster than tight polling loops.
• No reconnection logic. Even good providers occasionally drop connections. Your client should reconnect and resubscribe automatically.
• Sending test traffic to mainnet. Use Solana Devnet for development so you do not consume mainnet capacity or confuse your metrics.

Key Takeaways

• "Enhanced APIs" on Solana usually means WebSocket subscriptions, archive/history access, higher throughput, and dedicated capacity.
• Match the provider to your workload: wallets need reliability, bots need low-latency subscriptions, indexers need history depth.
• OnFinality provides Solana RPC over HTTP and WebSocket, plus dedicated node options for teams that need isolation.
• Always test WebSocket idle behavior and history depth before committing to a provider.
• Plan failover from day one, and use Devnet for development traffic.
• Review RPC pricing and supported RPC networks to see what fits your plan.

FAQ

Does OnFinality support Solana WebSocket subscriptions? Yes. Solana is available over both HTTP and WebSocket, including subscription methods such as logsSubscribe and accountSubscribe.

Can I get historical Solana data through RPC? History depth depends on the plan and node configuration. If you need deep history for indexing, discuss archive requirements with the provider or consider a dedicated node.

Should I use a shared or dedicated Solana endpoint? Start with a shared managed plan if your traffic is read-heavy and predictable. Move to a dedicated node if you need consistent latency, high throughput, or isolation from other tenants.

How do I test a Solana RPC provider quickly? Run getHealth, then test the specific methods your app uses, including a WebSocket subscription held open for several minutes.

Where can I find Solana Devnet settings? See the Solana Devnet page for endpoint and faucet details.