OpenSea Mobile is live: Trade everything, together.
Get the app
Home
Collections
Tokens
Perps
Trading Cards
FeedActivity
Drops
Rewards
Tools
Beta
Studio
Sign in
Aggregating
Networks
Platform Terms
Wallet & Onramp Terms
Privacy Policy
Allow-List Mint Builder
Agent Tools
Allow-List Mint Builder

Allow-List Mint Builder

By
0x52f8...959a
Paid
Live
Pricing
$0.10USDCUSDC
Allow-List Mint Builder
Allow-List Mint Builder
By
0x52f8...959a
Paid
Live
Pricing
$0.10USDCUSDC
Call this tool
Build a ready-to-sign SeaDrop allow-list (FCFS / whitelist) mint transaction across 13 chains. Give it your merkle proof and the stage parameters the project published; it recomputes your leaf and checks the proof against the drop's on-chain merkle root before building anything, trying every known leaf and pair-ordering convention. If the proof does not match it refuses and explains why, so you never burn gas on an InvalidProof revert. The caller signs with its own wallet.
nft
ParameterTypeDescription
chain*
string
Chain the NFT contract is deployed on. Ignored when an OpenSea URL names the chain.
proof*
string[]
Your merkle proof for this allow list, as 32-byte hex strings.
minter*
string
Address on the allow list, which will sign and receive the NFTs.
contract*
string
NFT contract address, or an OpenSea item URL such as https://opensea.io/assets/base/0x.../1
quantity
integer
How many tokens to mint. Defaults to 1.
mintParams*
object
The stage parameters the project published: mintPrice, maxTotalMintableByWallet, startTime, endTime, dropStageIndex, maxTokenSupplyForStage, feeBps, restrictFeeRecipients.
ParameterTypeDescription
to*
string
SeaDrop contract to send the transaction to.
data*
string
ABI-encoded mintAllowList calldata.
value*
string
Wei to send, as a decimal string.
chainId*
number
gasLimit*
string
Suggested gas limit, estimated then padded.
quantity
number
affordable
boolean
collection
string
merkleRoot
string
The allow-list root read from SeaDrop.
stageStatus
string
leafEncoding
string
Which leaf hashing convention matched: single-keccak or double-keccak.
maxFeePerGas
string
Suggested ceiling in wei.
mintPriceWei
string
nativeSymbol
string
pairOrdering
string
Which pair ordering matched: sorted or unsorted.
baseFeePerGas
string
Current base fee in wei.
proofVerified*
boolean
Always true on success; the request fails otherwise.
minterBalanceWei
string
secondsUntilStart
number
0 when live. Wait this long before broadcasting an upcoming stage.
requiredBalanceWei
string
Mint value plus gasLimit * maxFeePerGas. The minter needs at least this much.
maxPriorityFeePerGas
string
Suggested tip in wei.
Tool ID
781
Chain
Base
Last Checked
Created
Updated
Onchain verification
Onchain hash verified
Endpoint
https://allowlist-builder.vercel.app/api
$0.10 USDC
No activity yet. Activity will appear here as the tool is used.
SeaDrop Mint Reader
SeaDrop Mint Readerseadrop-reader.vercel.app
Read the live SeaDrop mint configuration for an NFT collection across 13 chains, including Ethereum, Base, Optimism, Arbitrum, Polygon, Avalanche, BSC, Zora, and the newer Robinhood Chain and Arc. Accepts a contract address or an OpenSea item URL. Returns mint price, stage start and end, max per wallet, fee recipient and creator payout, and whether the stage is public or gated by an allow list, signed mint or token gate. Read-only: holds no keys.
$0.01 USDC
0x52f8...959a
NFT Mint Transaction Builder
NFT Mint Transaction Buildermint-builder-three.vercel.app
Build a ready-to-sign SeaDrop mint transaction for an NFT collection across 13 chains, including Ethereum, Base, Optimism, Arbitrum, Polygon, Avalanche, BSC, Zora, Robinhood Chain and Arc. Takes a contract or OpenSea URL, the minting wallet and a quantity; returns to, data, value, chainId, gas limit and suggested fees. The caller signs with its own wallet - no key is ever handled. Refuses to build a transaction that would revert, and says why.
$0.05 USDC
0x52f8...959a
Token Owner Powers Scan
Token Owner Powers Scantoken-scanner-nine.vercel.app
Scan an ERC-20 and report what powers its owner still holds: mint new supply, pause transfers, blacklist wallets, change fees or limits, or upgrade the contract. Reads the deployed bytecode directly, resolving proxies so the implementation is scanned too, and reports whether ownership is renounced plus any missing standard ERC-20 functions. Works on 13 chains including Robinhood Chain and Arc. Facts only: no score, no verdict, no trading advice.
$0.02 USDC
0x52f8...959a
Send Token Transaction Builder
Send Token Transaction Buildertransfer-builder-umber.vercel.app
Build a ready-to-sign token transfer across 13 chains, including Robinhood Chain and Arc. Send an ERC-20 by contract address, or native currency with token set to native. Returns to, data, value, chainId, gas limit and suggested fees. Flags low balance, unpayable gas and contract recipients before you sign. The caller signs with its own wallet: no key is ever handled.
$0.03 USDC
0x52f8...959a
Token Approval Checker and Revoke Builder
Token Approval Checker and Revoke Builderapproval-checker-nine.vercel.app
Find out which contracts can spend a wallet's ERC-20 tokens, and get ready-to-sign transactions to revoke them. Scans the Approval log history where the node allows it, and always checks well-known spenders such as Permit2, Seaport and the major routers, plus any you supply. Flags unlimited allowances and ones larger than the balance. Works on 13 chains including Robinhood Chain and Arc. The caller signs: no key is ever handled.
$0.04 USDC
0x52f8...959a
Send nft
Send nftkeyring-agent.blockchhub.link
Pay the send-nft execution fee (ERC-721/1155 transfer)
$0.05 USDC
BotPay NFT Mint - Nft
BotPay NFT Mint - Nftapi.botpay.network
Mint a BotPay NFT on Base after an x402 USDC payment.
$0.10 USDC
Standard constants
Standard constantsapi.onesource.io
The Standard Reserve (TSR), an on-chain reserve protocol on Robinhood Chain. Chain-read protocol constants: base rate, epoch length, floors, and where each one was last read from.
< $0.01 USDC
Loyal Spark - Gateway mint
Loyal Spark - Gateway mintapi.loyalspark.online
Mint ERC-20 loyalty tokens on Base to a customer wallet or email. Onchain loyalty platform on Base Network. Businesses launch branded rewards in minutes, customers earn real value with every purchase, and AI agents automate the rest via REST and MCP. On the paid retry send the payment together with header x-api-key: lsk_... or Authorization: Bearer lsk_.....
$0.01 USDC
NFT Data
NFT Datawww.nftdata.app
Provides structured NFT collection and market data for AI agents. Given an OpenSea collection slug, returns collection metadata, contract information, floor price, 24-hour sales and volume, total lifetime statistics, and owner count sourced directly from the OpenSea API v2.
< $0.01 USDC
0x3441...7534
x4o2 pump.fun Data - Coins searchpump.x4o2.com
pump.fun's coin search: matches on name, symbol, description or mint, ranked by USD market cap. Returns full coin records (mint, metadata, market cap, creator, bonding-curve state). Use to resolve a ticker or name to a mint.
< $0.01 USDC
Tokens newestapi.slamai.dev
Returns the newest tokens minted on the blockchain based on mint timestamp, filtered by an activity window and optional category.
< $0.01 USDC
x402 Base Tools - Gasbase.kagurazaka.dev
Current Base gas: base fee, priority fee percentiles over the last 10 blocks, the L1 data fee of a typical transaction, and what an ETH transfer, an ERC-20 transfer, a USDC transferWithAuthorization (an x402 payment), a swap and an NFT mint cost now in ETH and USD (ETH/USD from Chainlink).
< $0.01 USDC
Grokzilla x402 Micro Pay - Skills uuid mintgrokzilla.shop
Mint 1-32 UUID v4 (or v1) identifiers for agent job IDs and idempotency keys.
< $0.01 USDC
Gas multi
Gas multimoney-reactor.makar52nn2016.workers.dev
Live gas price across Base, Arbitrum, Optimism and Polygon in ONE call — cheapest-chain routing for agents that settle or mint on L2s
$0.05 USDC
Market stablecoin info
Market stablecoin infoapi.x402node.dev
Deep profile of any stablecoin - peg mechanism (fiat/crypto/algorithmic), circulating supply by chain, audit status and mint/redeem rules - risk intelligence agents need before holding that LLMs cannot look up live. stablecoin info, stablecoin reserves, peg mechanism, stablecoin audit, circulating supply, stablecoin risk Accepts payment on Base or Solana — either network works.
< $0.01 USDC
Solana token risk report (full) - Sol token report
Solana token risk report (full) - Sol token reportagent402.tools
Full public token-risk report for a Solana token mint, trimmed to what an agent acts on: score and risks, mint/freeze authority state, metadata mutability and update authority, supply and decimals, creator and creator balance, top 20 holders with percent, owner, insider flag and pool/locker labels, concentration totals, the deepest markets (liquidity, LP locked %), lockers, total market liquidity, LP providers, holder count, rugged flag, insider-network count, launchpad and transfer-fee config.
$0.01 USDC