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eth_getBlockTransactionCountByHash

eth_getBlockTransactionCountByHash JSON-RPC reference for MegaETH.

Summary

Returns the number of transactions in the block matching the given hash.

The public MegaETH endpoint supports this method. The standard, node, and gateway layers below identify behavior that differs from a generic Ethereum endpoint.

Parameters

blockHash Hash32 REQUIRED

Target block hash.

Result

result Quantity | null

Transaction count; null when the block is not found.

Comparison with Ethereum Standard JSON-RPC

Ethereum Standard

The canonical Ethereum method uses the parameter and result contract documented above, including the stated null, false, or zero-value semantics where applicable.

MegaETH Node Behavior

The node looks up the block and returns its transaction count. An unknown block produces null.

MegaETH Public Gateway

The gateway caches successful hash-based lookups for 30 minutes in the simple read tier.

Errors

The | Scope | column distinguishes method failures from gateway policy errors.

Code
Scope
Message
When it happens

-32602

Request

Invalid params

Block hash missing or malformed

-32005

Transport/policy

Rate limit exceeded

The caller exceeds the public gateway's simple read budget.

-32099

Transport/policy

Payload too large

The request body exceeds the 128 KiB public endpoint limit.

See also Error Codes.

Examples

Endpoint: https://mainnet.megaeth.com/rpc

Capture date: July 24, 2026

Outcome: success

Sources

  • Spec: [email protected]:ethereum/execution-apis.git @ d24f58b56dcd16ab0f0c70ec609bcc1c42750b51: src/eth/block.yaml

  • Code: [email protected]:megaeth-labs/mega-reth.git @ ab60376631228edab3a6df180f295280bad26e93: crates/rpc/rpc-eth-api/src/core.rs

  • Code: [email protected]:megaeth-labs/mega-rpc.git @ 06aa35aa95d569c227cc25d2aa12834eb0458aa0: workers/src/spec/methods.ts

  • Probe: MegaETH Mainnet public endpoint, July 24, 2026

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