What is Megadinals?

It enables anyone to permanently inscribe data - text, images, SVG, code, HTML, JSON, or any file - directly on MegaETH using on-chain transactions.

Megadinals also introduces MEGA-20, a fungible token standard inspired by BRC-20 mechanics, designed for fair launches, open minting, and enforced fees to reduce bot spam.

Inscriptions are permanent, open, and indexed by the Megadinals Explorer.

[001] How It Works

Megadinals records arbitrary data directly on MegaETH through transaction calldata and protocol-recognized payloads.

Inscriptions can be simple raw data such as text, SVG, images, or structured JSON for NFT collections and MEGA-20 tokens.

Every valid inscription is indexed, rendered, and displayed inside the Megadinals Explorer.

Once confirmed on MegaETH, the inscription becomes a permanent on-chain artifact.

{
  "p": "mega-20",
  "op": "deploy",
  "tick": "MEGAS",
  "max": "21000000",
  "lim": "420"
}

This is the actual deploy of $MEGAS - the first MEGA-20 token on MegaETH. Anyone can mint 420 tokens per transaction for just 0.00015 ETH.

[002] Key Features

L1-Powered Inscriptions: Data is written directly on MegaETH transactions, without relying on external storage like IPFS.

Fair Launch Mechanics: No pre-mines, no private allocations, no whitelist advantage. Every user participates under the same minting rules.

Native MegaETH Integration: Designed to work with MegaETH-compatible wallets and EVM infrastructure.

Raw Inscriptions: Users can inscribe raw data directly. Text, SVG, images, JSON, HTML, and code can be written on-chain.

MEGA-20 Fungible Tokens: Deploy, mint, and transfer BRC-20-style tokens on MegaETH. Tickers are first come, first served. Fees are enforced to reduce spam and bot abuse.

02 Creating an Inscription

To create an inscription on MegaETH, you need a MegaETH-compatible wallet with enough ETH or MegaETH testnet gas for transaction fees.

Steps: Connect your wallet on the Megadinals Inscribe page. Choose your format: text, image, SVG, JSON, HTML, or file upload. Upload or paste your content. Review the platform fee and network gas. Click Inscribe. Your wallet signs the transaction. Wait for MegaETH confirmation. Your inscription becomes permanently stored on-chain.

03 Supported Formats

Maximum size may be constrained by MegaETH transaction limits and gas costs.

Last updated: MAR 25, 2026

Next: How It Works

Megadinals is an experimental protocol - not a financial product. No returns should be expected.

04 Fees & Costs

Megadinals uses a hybrid fee model.

Raw inscriptions are kept simple and accessible, while MEGA-20 token operations require enforced fees to reduce spam and bot activity.

Inscriptions

Raw inscriptions are visible in the Megadinals Explorer once indexed. The indexer is open and reads valid Megadinals inscription data from MegaETH transactions.

MEGA-20 Tokens

MEGA-20 fees are strictly enforced. Operations without the correct fee are ignored by the indexer. This prevents bots from minting entire supplies for free.

Other

All fee-based operations are handled through protocol-recognized transactions. If a transaction fails, the operation is not indexed.

05 Protocol Specification

All Megadinals operations use MegaETH transactions with structured protocol payloads.

Protocol identifier:

{
  "p": "megadinals"
}

For MEGA-20 tokens:

{
  "p": "mega-20"
}

06 Operations

Example: Inscribe Operation

{
  "p": "megadinals",
  "op": "inscribe",
  "type": "image/svg+xml",
  "name": "My First Megadinal",
  "data": "<svg>...</svg>"
}

Example: Transfer Operation

{
  "p": "megadinals",
  "op": "transfer",
  "symbol": "MEGAS",
  "id": "42",
  "to": "0x0000000000000000000000000000000000000000"
}

07 MEGA-20 Token Standard

MEGA-20 is a fungible token standard on MegaETH, inspired by BRC-20 on Bitcoin.

Anyone can deploy and mint tokens using structured Megadinals JSON payloads.

Key Rules: Ticker is 4-5 uppercase letters (A-Z), first come first served, first valid deploy claims ticker forever, fixed 8 decimals, deploy/mint/transfer fees enforced, operations without required payment ignored, fair launch only, no pre-mines.

08 Deploy a MEGA-20 Token

Create a new fungible token.

Fee: 0.00015 ETH / MegaETH gas equivalent

{
  "p": "mega-20",
  "op": "deploy",
  "tick": "MEGAS",
  "max": "21000000",
  "lim": "420"
}

If the ticker already exists or the required fee is not paid, the deploy is ignored by the indexer.

09 Mint MEGA-20 Tokens

Mint tokens from an existing deployment.

Fee: 0.00015 ETH / MegaETH gas equivalent per mint

{
  "p": "mega-20",
  "op": "mint",
  "tick": "MEGAS",
  "amt": "420"
}

Validation Rules: ticker must exist, amount must be less than or equal to mint limit, total minted supply must not exceed max supply, required mint fee must be paid, and transaction must be valid on MegaETH.

Anti-Bot Design: every mint requires a protocol fee. This makes large-scale bot minting expensive and helps keep launches fair for normal users.

10 Transfer MEGA-20 Tokens

Send MEGA-20 tokens to another address.

Fee: 0.0005 ETH / MegaETH gas equivalent

{
  "p": "mega-20",
  "op": "transfer",
  "tick": "MEGAS",
  "amt": "500",
  "to": "0x0000000000000000000000000000000000000000"
}

The indexer verifies the sender's balance using the transaction sender address. You can only transfer tokens you own.

11 Transfer Inscriptions

Transfer ownership of any Megadinals inscription - text, SVG, image, JSON, HTML, or code - to another wallet.

Use the inscription ID from the Megadinals Explorer.

{
  "p": "megadinals",
  "op": "transfer",
  "id": "442",
  "to": "0x0000000000000000000000000000000000000000"
}

Only network gas is required unless the protocol defines an additional transfer fee. The indexer verifies ownership from the transaction sender. You can only transfer inscriptions you own.

12 Marketplace

The Megadinals Marketplace allows listing, buying, and trading inscriptions. All marketplace actions are represented through on-chain Megadinals operations and indexed by the protocol.

v1: OTC Trading - transfers are peer-to-peer. Buyers and sellers coordinate off-chain through Discord, Telegram, X, or other channels, then settle ownership on-chain.

v2: Escrow Marketplace (coming soon) - list to buy flow with escrow-style verification. The buyer pays, the indexer verifies payment, and ownership transfers according to marketplace rules.

Disclaimer: Megadinals is an experimental inscription and token protocol built for MegaETH. It is not a financial product. MEGA-20 tokens are experimental assets. No profit, return, or future value should be expected.