Dwellir vs Other RPC Providers: What Should You Compare?

Dwellir decision checklist

Before you pick any RPC provider, confirm these points with the provider's docs or support team:

• Chain coverage: Does the provider offer the exact networks you need for mainnet and testnet? For example, if you target Base and Polkadot, check that both are available.
• Endpoint types: Can you get HTTPS for JSON-RPC calls and WSS for real-time subscriptions? Are archive nodes available for historical state?
• Authentication: How do you access endpoints? API keys, allowlists, or both? Does the key model fit your server-side backend?
• Rate limits and quotas: What happens when you exceed the free tier? Is pricing per request, per month, or bandwidth-based?
• Failover options: Does the provider give you multiple endpoints or a load-balanced URL? What is the fallback behavior if one node fails?
• Data fidelity: Are you reading from full nodes or archive nodes? For some queries, archive data is required.
• Support and documentation: Is there clear documentation, a status page, and a responsive support channel?
• Lock-in: Can you migrate to another provider with minimal code changes? Standard JSON-RPC should be portable.

Use this checklist to shortlist providers. It will also organize what to test during a trial period.

What Dwellir offers as an RPC provider

Dwellir positions itself as a robust blockchain infrastructure company. Based on its public site, it provides API access to more than 150 blockchain networks, including Ethereum, Arbitrum, Base, Polygon, BNB Smart Chain, Polkadot, Moonbeam, and Sui. The service exposes both HTTPS and WebSocket (WSS) endpoints, and for several networks it offers archive and full node options.

For example, Dwellir's documentation-style listing on its homepage shows endpoint URLs like:

https://api-base-mainnet-archive.n.dwellir.com/{API_KEY}
wss://api-base-mainnet-archive.n.dwellir.com/{API_KEY}

These endpoints require a key, which suggests an API-key-based authentication model. Some networks also appear to have public endpoints, although public endpoints are usually shared and may be rate limited.

The company highlights reliability and scalability as its core value proposition. That wording is common across RPC providers, so your evaluation should go beyond the landing page and look at concrete metrics and behaviors.

How to verify a provider's claims before investing time

RPC provider marketing pages sound similar: "reliable," "scalable," "best-in-class." You need to verify those claims through your own tests and through community feedback.

• Run a trial load test: Generate the type of traffic your dApp will produce. Use tools like hey or wrk to send many requests and observe latency, error rates, and throttling.
• Check the status page: Does the provider maintain an incident history and a public status page? Past incidents tell you how often outages happen and how transparent they are.
• Ask for a testnet endpoint: A provider that offers testnet access allows you to validate functionality without risking mainnet funds.
• Read the docs for rate limit specifics: Look for concrete numbers like "100 requests per second" or "1 million requests per month." Vague wording like "fair use" is a warning sign.
• Search for community discussions: Developer forums and Discord channels often contain real-world experiences about uptime and support responsiveness.

These verification steps apply to Dwellir, OnFinality, and any other provider you evaluate.

How to evaluate an RPC provider like Dwellir

Comparing RPC providers is not just about who has the longest chain list. The table below maps evaluation criteria to the questions that matter in production.

Ask your shortlisted providers for trial access and test each row. If a provider cannot answer these questions clearly, treat that as a warning sign.

Comparing Dwellir with alternatives like OnFinality

Dwellir is one of many RPC platforms in the Web3 infrastructure space. Others take a similar approach, including OnFinality, which offers a public RPC API service and dedicated nodes.

When comparing Dwellir to an alternative like OnFinality, consider:

• Network list: Both providers support many popular chains, but the exact list changes over time. Review the current supported RPC networks on OnFinality to see if your chains are present.
• Node types: Check whether the provider gives you access to archive, full, and WebSocket endpoints. OnFinality supports a range of node configurations across networks.
• Dedicated nodes: If you need isolated capacity, dedicated nodes may be more cost-effective than paying per request. OnFinality offers dedicated node infrastructure for teams that want their own endpoint without running the node themselves.
• Pricing: RPC costs come in many forms: free tiers, pay-as-you-go, or monthly subscriptions. Compare the pricing models against your traffic pattern. See RPC pricing for OnFinality's current structure.

There is no universally "best" provider. The right choice depends on your chain coverage requirements, your budget, and how much operational overhead you want to take on.

Practical RPC testing

Once you have an endpoint, test its behavior before writing application code. A simple curl request is enough to check whether the endpoint accepts your API key and returns the expected response.

For an Ethereum-compatible network, you can call eth_chainId:

curl -X POST "https://api-base-mainnet-archive.n.dwellir.com/YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"eth_chainId","params":[],"id":1}'

A successful response looks like:

{"jsonrpc":"2.0","id":1,"result":"0x2105"}

If you are evaluating OnFinality's endpoints, you can find the HTTPS and WSS URLs for each chain on the network pages. The same curl pattern works with OnFinality endpoints.

For Substrate-based networks such as Polkadot, use methods like system_health or chain_getHeader:

curl -X POST "https://api-polkadot.n.dwellir.com/YOUR_API_KEY" \
  -H "Content-Type: application/json" \
  --data '{"jsonrpc":"2.0","method":"system_health","params":[],"id":1}'

Always verify that the endpoint supports the methods your dApp actually uses. Archive queries like eth_getBalance with historical block numbers are only reliable if the provider runs archive nodes.

Common pitfalls when integrating an RPC provider

Even with a solid provider, integration mistakes can cause outages or skewed data. Watch for these pitfalls:

• Leaking API keys: If the key is part of the URL and you log URLs, the key is exposed. Use server-side proxies or strip query parameters before logging.
• Assuming all nodes are archive: Many providers run a mix of full and archive nodes. Historical state queries will fail on endpoints that are not archive. Confirm which type you need for each network.
• Ignoring WebSocket reconnects: Subscriptions over WSS drop after network interruptions. Implement reconnection logic with exponential backoff and resubscribe to all previous topics.
• Not testing rate limits early: Load test during a trial period. A provider that responds well in a single curl may throttle you when your dApp scales.
• Building a custom provider client: Stick to standard JSON-RPC libraries. Custom clients make migration harder and introduce edge-case bugs.

Using multiple providers for resilience

Even with a good HTTP endpoint, production dApps sometimes need a second source. A common pattern is to make one provider your primary and another your fallback. This way, if the primary has an outage or rate limits kick in, your app can switch with minimal disruption.

Dwellir and OnFinality both expose standard JSON-RPC endpoints, so failover logic can be implemented client-side with a small wrapper. For example, you might try OnFinality first and fall back to Dwellir, or vice versa, based on your preferences.

When you use multiple providers, be aware of data consistency. If one provider is an archive node and the other is not, you need to route archive queries to the archive endpoint. Similarly, WebSocket subscriptions typically need to be re-established when you switch providers.

Key Takeaways

• Dwellir is a multi-chain RPC provider that advertises broad network coverage and both HTTPS and WSS endpoints.
• Evaluating a provider requires checking chain coverage, archive support, rate limits, failover, and pricing transparency.
• Use a decision checklist to compare Dwellir with alternatives such as OnFinality, which offers RPC pricing and supported networks that can be reviewed directly.
• Test endpoints with curl before committing, and verify that archive methods work for the data you need.
• Plan for API key security, WebSocket reconnects, and rate limits in your application architecture.
• Consider dedicated nodes when you need isolated capacity instead of shared public endpoints.

Frequently Asked Questions

Is Dwellir a free RPC provider?

Dwellir's site shows that some networks have public endpoints, but most endpoints appear to require an API key. Public endpoints are typically shared and rate limited. Check Dwellir's current pricing page for details on free and paid tiers.

Does Dwellir support Polkadot?

Yes, Dwellir lists Polkadot as one of its supported networks and provides WSS endpoints for it. Substrate-specific methods should be available on those endpoints.

How does Dwellir compare to OnFinality for production dApps?

Both providers offer multi-chain RPC access. OnFinality also provides public RPC endpoints, a dashboard for API keys, and dedicated node infrastructure. The best choice depends on your chain list, traffic, and budget. Review supported networks on OnFinality to see if it covers the blockchains you need.

Can I use Dwellir endpoints in a mobile app?

You can, but be careful about exposing API keys. Recommended practice is to route requests through your own backend proxy so the key stays server-side.