# rex

> Developer tooling for exploring Reth EVM Node execution internals.

- [rex — Reth Node Explorer](https://rexrex.mintlify.app/docs/index.md): Developer tooling for exploring Reth EVM Node execution internals.
- [Quickstart](https://rexrex.mintlify.app/docs/quickstart.md): Install Rex, start a Reth dev node, and inspect its txpool and database.
- [Chain](https://rexrex.mintlify.app/docs/chain/index.md): Inspect canonical chain heads, blocks, ancestry, and hash canonicality.
- [Inspect Chain Head](https://rexrex.mintlify.app/docs/chain/head.md): Show latest, safe, and finalized block heads.
- [Inspect a Block](https://rexrex.mintlify.app/docs/chain/block.md): Inspect one block by number, hash, or tag.
- [Inspect Block Ancestry](https://rexrex.mintlify.app/docs/chain/ancestry.md): Walk parent hashes from a starting block.
- [Check Block Canonicality](https://rexrex.mintlify.app/docs/chain/canonical.md): Compare a block hash with the canonical hash at the same block number.
- [Execution](https://rexrex.mintlify.app/docs/execution/index.md): Simulate calls, replay transactions, and inspect block-level state changes.
- [Simulate Execution](https://rexrex.mintlify.app/docs/execution/simulate.md): Run `eth_call` and `eth_estimateGas` for a manual call or existing transaction.
- [Replay a Transaction](https://rexrex.mintlify.app/docs/execution/replay-tx.md): Replay one transaction with `debug_traceTransaction` and summarize the call tree.
- [Trace Block State Diff](https://rexrex.mintlify.app/docs/execution/state-diff.md): Summarize account and storage changes produced by a block.
- [Engine](https://rexrex.mintlify.app/docs/engine/index.md): Inspect authenticated Engine API capabilities and payload body data.
- [Inspect Engine Capabilities](https://rexrex.mintlify.app/docs/engine/capabilities.md): Exchange and print the Engine API methods supported by the execution client.
- [Fetch Payload Bodies](https://rexrex.mintlify.app/docs/engine/payload-bodies.md): Fetch execution payload bodies by execution block hash.
- [Network](https://rexrex.mintlify.app/docs/network/index.md): Inspect node identity, connectivity, and established devp2p peers.
- [Inspect Network Status](https://rexrex.mintlify.app/docs/network/status.md): Show the node's listening state, established peer count, and network ID.
- [Inspect Node Identity](https://rexrex.mintlify.app/docs/network/node.md): Show the local node's devp2p identity, addresses, ports, and protocols.
- [Inspect Network Peers](https://rexrex.mintlify.app/docs/network/peers.md): Show established peer sessions, directions, trust flags, and protocol capabilities.
- [TxPool](https://rexrex.mintlify.app/docs/txpool/index.md): Inspect pending, queued, replaced, and competing transactions in a running Reth node.
- [Inspect the TxPool](https://rexrex.mintlify.app/docs/txpool/inspect.md): View pending and queued txpool transactions from txpool_content.
- [Inspect One Sender](https://rexrex.mintlify.app/docs/txpool/sender.md): Filter txpool_content to transactions sent by a single address.
- [Find TxPool Nonce Gaps](https://rexrex.mintlify.app/docs/txpool/nonce-gaps.md): Compare the latest on-chain nonce with sender nonces in the txpool.
- [Estimate Replacement Thresholds](https://rexrex.mintlify.app/docs/txpool/replacement.md): Inspect the local fee bump needed to replace a transaction already in the pool.
- [Inspect TxPool Fees](https://rexrex.mintlify.app/docs/txpool/fees.md): Summarize fee fields exposed by transactions in the current txpool snapshot.
- [Find Duplicate Sender Nonces](https://rexrex.mintlify.app/docs/txpool/duplicates.md): Find same-sender, same-nonce transaction conflicts in the txpool.
- [Inspect TxPool Stats](https://rexrex.mintlify.app/docs/txpool/stats.md): Show aggregate txpool counts, gas, blobs, transaction types, and top senders.
- [Watch TxPool Changes](https://rexrex.mintlify.app/docs/txpool/watch.md): Poll the txpool and print transactions added or removed between snapshots.
- [Database](https://rexrex.mintlify.app/docs/db/index.md): Inspect local Reth MDBX tables, schema compatibility, and static-file storage without writing data.
- [Inspect Database Info](https://rexrex.mintlify.app/docs/db/info.md): Summarize MDBX table pages, freelist pages, the data file, and Reth static files.
- [Inspect Database Tables](https://rexrex.mintlify.app/docs/db/tables.md): Show MDBX entry and page statistics for every table in the pinned Reth schema.
- [Check Database Version](https://rexrex.mintlify.app/docs/db/version.md): Compare the on-disk Reth schema version with the schema supported by Rex.


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