NAIF FixGraph · RPC Doctor

RPC returned an invalid or restricted response

The endpoint responded, but the expected chainId and blockNumber results were not both available.

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Problem signature

INVALID_OR_RESTRICTED_RPC_RESPONSE

Likely causes

Provider restricts one of the methods
Batch JSON-RPC requests are not supported
Proxy returns a partial or altered response

What to check first

Call eth_chainId and eth_blockNumber separately
Check whether batching is supported
Inspect provider method restrictions

Test yours freeGet the bounded fix · from 29 USDC

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