Unsupported methods
These method families are outside the documented product surface. An upstream may support additional methods, but that does not make them supported by this service. The reasons and alternatives below distinguish product policy from protocol requirements.
| Family | Methods | Why | Use instead |
|---|---|---|---|
| Filters | eth_newFilter, eth_newBlockFilter, eth_newPendingTransactionFilter, eth_getFilterChanges, eth_getFilterLogs, eth_uninstallFilter | Stateful filter methods are not part of this product surface. Their node-local state also needs routing affinity that a generic upstream pool cannot guarantee. | Poll eth_getLogs with explicit ranges, or use eth_subscribe on a WebSocket-enabled network. |
| Blob fee | eth_blobBaseFee | Not offered in this reference; blob-fee APIs and fields depend on the selected network and upstream. | Where supported, inspect baseFeePerBlobGas in eth_feeHistory. Blob fee is separate from the execution gas fee. |
| Simulation | eth_simulateV1 | Multi-transaction and multi-block simulation is outside this product surface. | Use eth_call for an individual read or simulation. eth_createAccessList prepares access lists; neither replaces the full eth_simulateV1 feature set. |
| Utility | web3_sha3, eth_protocolVersion | Not offered in this reference; eth_protocolVersion is a legacy client/network protocol query. | For web3_sha3, compute Keccak-256 locally (not NIST SHA3-256). No protocol-version query is exposed here. |
| Mempool | txpool_status, txpool_content | The txpool namespace is not offered. A node-local pool would not represent every pending transaction on the network. | No substitute — mempool data needs a dedicated service. |
| Tracing | trace_block, trace_transaction, debug_traceTransaction | The debug/trace namespaces are not offered. Tracing requires the relevant execution state; historical availability depends on the node configuration. | Use a tracing provider with the required state retention. Recent tracing does not inherently require a full archive node. |
| Node-managed accounts | eth_sendTransaction, eth_sign, eth_signTransaction | These require access to a node-managed signing account. This service does not hold or unlock user signing keys. | Sign locally and broadcast with eth_sendRawTransaction. |
| Legacy node / mining | eth_coinbase, eth_mining, eth_hashrate | Not offered by this product. On post-Merge Ethereum, mining-status methods do not describe proof-of-stake validation; other networks have different consensus rules. | Use eth_blockNumber and eth_syncing for the serving node, and chain-specific consensus data for validator monitoring. |
Deep archive state (older than the upstream's window) is also outside scope — standard full-node data only.