Base Jump API: Trace a Launchpad Token on Base from Mint to First Trades
Base Jump was a token launchpad on Base. Its contract, 0x31C0282Fa6D0A82aD22ab63BbaCd87F62B2a9bfD, receives no calls in the current realtime window, and the token the original guide used, SIBU at 0xEfC79f30b56f36bc49Bf47e8Dccf969fFF214EeD, was minted, distributed and traded within a few minutes on 28 October 2024 and has not moved since. The launch still makes a clean worked example, because the steps are the same for any launchpad on Base: find the launchpad contract from the token's first transfers, pull the launch trades, and read the contract's methods while it is live. Every query runs in the IDE on a free account. For launchpads active on Base today see the Clanker, Zora, Bankr and APE Store pages.
One coverage fact shapes the page. On Base the Transfers and DEXTradeByTokens cubes reach years back on the combined dataset, while Calls and Events cover the realtime window only. So the mint and the trades of a 2024 launch are still queryable, but method-level analysis of a contract only works while it is active.
Step 1: find the launchpad contract from the token
The first transfers of a token show where it was minted and who distributed it. The Transaction.To on those rows is the contract the deployer called. For SIBU the mint from the zero address went to the Base Jump contract, which then sent the supply on in the same transaction. Saved query here.
{
EVM(network: base, dataset: combined) {
Transfers(
where: {
Transfer: {
Currency: { SmartContract: { is: "0xEfC79f30b56f36bc49Bf47e8Dccf969fFF214EeD" } }
}
}
limit: { count: 10 }
orderBy: { ascending: Block_Time }
) {
Block {
Time
}
Transfer {
Sender
Receiver
Amount
Currency {
Symbol
Name
}
}
Transaction {
Hash
From
To
}
}
}
}
Step 2: pull the launch trades
DEXTradeByTokens on the combined dataset returns every trade of the token with the venue and the other side. For SIBU that is a short burst of Uniswap v3 trades against WETH. Saved query here.
{
EVM(network: base, dataset: combined) {
DEXTradeByTokens(
where: {
Trade: {
Currency: { SmartContract: { is: "0xEfC79f30b56f36bc49Bf47e8Dccf969fFF214EeD" } }
}
}
limit: { count: 50 }
orderBy: { ascending: Block_Time }
) {
Block {
Time
}
Trade {
Dex {
ProtocolName
}
Amount
Side {
Amount
Currency {
Symbol
}
}
}
Transaction {
Hash
From
}
}
}
}
Replace the selection with count, uniq(of: Transaction_From) and Block { first: Time(minimum: Block_Time) last: Time(maximum: Block_Time) } to size a launch in one row: trades, distinct traders, first and last trade.
Step 3: read a live contract's methods
For a launchpad that is active, group the Calls into its contract by signature to see what it exposes and which methods carry the volume. The example is the Clanker contract that emits TokenCreated on Base; put the Base Jump contract in its place and the result is empty, which is how you confirm a launchpad has gone quiet. Saved query here.
{
EVM(network: base) {
Calls(
where: {
Transaction: { To: { is: "0x375C15db32D28cEcdcAB5C03Ab889bf15cbD2c5E" } }
Block: { Time: { since_relative: { hours_ago: 24 } } }
}
orderBy: { descendingByField: "count" }
limit: { count: 20 }
) {
Call {
Signature {
Name
Signature
}
}
count
}
}
}
From there, filter Calls on one signature name and select Arguments to decode the parameters of each call; the Clanker page shows that shape for token creation events.
Frequently Asked Questions
Is the Base Jump launchpad still active?
Not on-chain. Its contract receives no calls in the realtime window, and the example token's only activity was on its launch day in October 2024. The queries here work as a pattern for any Base launchpad.
How do I find which launchpad deployed a token on Base?
Query the token's earliest Transfers on the combined dataset. The mint comes from the zero address, and Transaction.To on that row is the contract the deployer called, which is the launchpad or its factory.
Why does a Calls query for a 2024 contract return nothing on Base?
Calls and Events on Base cover the realtime window only. Transfers and DEXTradeByTokens reach history on the combined dataset, so use those cubes for anything older than the window.
Which Base launchpads have current guides?
Clanker, Zora, Bankr and APE Store each have a page with live queries for token creation, trades and traders.
Related pages
Ready to run this in production?
Get an API key and run these queries in minutes, or talk to us about plans and enterprise delivery.