Why My App Works on One RPC but Not Another

What This Error Actually Is

RPC-specific failures occur when dApps function correctly with one RPC provider but fail with another, despite both connecting to the same blockchain network. This stems from differences in RPC implementation, rate limits, supported methods, and data availability.

Why This Commonly Happens

RPC providers implement different rate limits, archive node access, and method support. Some providers may not support historical data queries, trace methods, or specific eth_call parameters that the application requires.

What It Does Not Mean (Common Misinterpretations)

RPC-specific failures don't indicate problems with the smart contracts or blockchain network. The contracts work identically regardless of which RPC is used to interact with them.

How This Type of Issue Is Typically Analyzed

Comparing RPC provider capabilities, rate limits, and supported methods reveals differences that cause application failures. Testing specific queries against different providers identifies which operations are unsupported.

Common Risk Areas or Oversights

Applications that rely on archive node data, trace methods, or high request volumes may fail on RPC providers with limited capabilities or strict rate limits.

Scope & Responsibility Boundary Disclaimer

This analysis explains RPC provider differences but does not recommend specific providers or guarantee compatibility with any particular RPC service.