> For the complete documentation index, see [llms.txt](https://docs.lumia.org/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.lumia.org/reference.md).

# Reference

**Who this is for:** anyone who needs a value to copy (an RPC URL, a chain ID, a contract address, a method name) and wants the one place it's guaranteed to be current. This section is lookup-only: no task steps, no concept explanations, no marketing language. Every other page in this tree links to a table here instead of restating a value.

<table data-view="cards"><thead><tr><th></th><th></th><th data-hidden data-card-target data-type="content-ref"></th></tr></thead><tbody><tr><td><strong>Networks &#x26; Endpoints</strong></td><td>Chain IDs, RPC/WSS, explorers, bridge, and DA layer for mainnet and Beam testnet</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/networks-and-endpoints">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/networks-and-endpoints</a></td></tr><tr><td><strong>Contract Addresses</strong></td><td>AggLayer/settlement, account-abstraction, and RWA framework contract addresses</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/contract-addresses">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/contract-addresses</a></td></tr><tr><td><strong>JSON-RPC API</strong></td><td>Supported JSON-RPC methods and Lumia-specific <code>zkevm_*</code> extensions</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/json-rpc-api">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/json-rpc-api</a></td></tr><tr><td><strong>KYC Verifier API</strong></td><td>On-chain KYC verifier REST endpoints</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/rest-apis">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/rest-apis</a></td></tr><tr><td><strong>SDKs</strong></td><td>What SDKs and reference implementations actually exist today</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/sdks">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/sdks</a></td></tr><tr><td><strong>EVM Opcode Support</strong></td><td>Modified/unsupported opcodes, precompile support</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/evm-opcode-support">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/evm-opcode-support</a></td></tr><tr><td><strong>Gas &#x26; Fees</strong></td><td>Fee calculation formula, fee token</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/gas-and-fees">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/gas-and-fees</a></td></tr><tr><td><strong>Block Explorers</strong></td><td>Mainnet and Beam testnet explorer URLs</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/block-explorers-reference">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/block-explorers-reference</a></td></tr><tr><td><strong>CLI &#x26; Tools</strong></td><td>Lumia-specific CLI, supported plugin versions</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/cli-and-tools">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/cli-and-tools</a></td></tr><tr><td><strong>Error Codes</strong></td><td>Error/response-code table</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/error-codes">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/error-codes</a></td></tr><tr><td><strong>Testnet Faucet</strong></td><td>Faucet URL, claim amount, cooldown</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/testnet-faucet">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/testnet-faucet</a></td></tr><tr><td><strong>Retired Testnet (1952959480)</strong></td><td>Deprecation notice for the old "Lumia Testnet"</td><td><a href="https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/retired-testnet-1952959480">https://app.gitbook.com/s/chmhPiVNAafGw48c4oU2/reference/retired-testnet-1952959480</a></td></tr></tbody></table>