On-Chain Tasks

This page maps the on-chain Create Task dialog to what the app stores and executes.

Contract Address#

Target	What happens
Contract Address	ABI Function or raw hex calldata
OpenSea Drop URL	The app resolves the drop, phase, price, and SeaDrop calldata
Transient Mint URL	The app resolves the mint details and prefills the task

For a normal contract address, Zyper attempts ABI lookup and then renders a function picker. If the ABI cannot be found, you can paste an ABI manually or switch to raw hex calldata. For launchpad links, Zyper will resolves and fill the necessary fields. You will choose which phase and how many NFTs to mint, then set up the wallets, RPC, and gas settings.

More launchpad supports coming soon

Function or Hex Mode#

ABI mode lists state-changing functions only. Pick the function and fill each argument. Hex mode skips ABI encoding and sends the raw calldata you provide. This is useful when a site or extension capture already gave you the final data field.

Function mode is better used when you want to fill out the parameters differently. Hex is better used for a tx that has same exact content.

Fields & Value#

In ABI mode, Fields fills the selected function’s inputs in order. Separate top-level inputs with semicolons—for example 2;0xabc…;[1,2,3]. The number of entries must match the function ABI. Fields is disabled for a function with no inputs and in Hex mode, where the raw calldata is already encoded.

Field templates#

Token	Meaning
{address}	The spawned task wallet’s full 0x… address. This is the normal choice for an ABI address field.
{wallet} / {self}	The signing wallet as lowercase 40-character hex without 0x. Works in ABI fields and inside raw calldata; it can also be used as the Contract Address for a self-send.
{id} / {idN} / {idA-B}	Owner-scan scavenger search for an available token ID. {id777} searches IDs from 0 through 777; {id100-777} limits it to that explicit range.
{n} / {nN} / {nA-B}	Generic simulation scavenger search. {n777} searches numbers from 1 through 777.

Scavenger templates are case-insensitive. Adding an {id…} or {n…} token locks the task to Simulate and disables Spam: Zyper searches for a value whose call succeeds, broadcasts it, and looks for another candidate if that value is lost to another minter first.

Value#

Value is the total decimal amount of the selected chain’s native asset sent with each transaction—not a per-item price. Use 0 or leave it empty for a free/non-payable call. For a generic paid mint, enter the mint price multiplied by the quantity. Supported launchpad resolvers normally calculate and prefill the total for you. In ABI mode, Value is disabled when the selected function is not payable.

Wallets and RPC#

Choose a wallet group and the wallet used for the tasks. One task = one wallet. RPC pick is optional, by default all RPC for that chain is selected. You can select single or multiple RPC. The RPC distribution depends on Multi-RPC Broadcast in your settings.

If Multi-RPC broadcast is on, Zyper sends to every URL in the task’s RPC list in parallel. Same exact payload and gas settings, no nonce-clash risk. First RPC to accept it wins. If Multi-RPC broadcast is off, Zyper assigns each task with 1 RPC, round-robin style.

Gas Settings#

If left on auto, Zyper will pick the recommended gas by the RPC endpoint at the moment of transaction firing.

• Gas Limit — most of the time you want to leave this on auto. Filling the gas limit reducing one RPC call needed before firing the transaction, but wrongly configured amount can risk running out of gas before transaction filled.
• Max Fee and Priority Fee — max fee is the max gwei amount you’re willing to spend on the transaction. While the priority fee is the tip you’re willing to give for your transactions to be included. The priority fee will always be spent. Max fee must always bigger or equal the priority fee.

Timing Settings#

• Nonce — most of the time you’d want to leave this on auto. use this to target specific nonce of the wallet
• Timestamp — unix format, the tasks will wait until the timestamp hit and then start firing.
• Delay — the time spent to wait until next retry

Modes#

• Simulate — repeatedly simulate the transaction until it doesn’t reverts, then broadcasts the real transaction.
• Spam — repeatedly signs and broadcasts attempts until success, or task stop, or a max attempt count / an end timestamp / the spam guardrail reached.
• Simulate OFF (Instant) — signs and send transactions instantly, regardless of reverts.

See Modes for the full behavior and combinations.

Flashbots#

Flashbots is mainnet-only and requires Settings > Flashbots to be configured.

Outside Spam, enabling Flashbots submits the same signed transaction as a bundle while the public mempool broadcast also happens. Turning on Flashbots Only skips the public mempool and waits for the bundle path.

In Spam mode, Flashbots changes Spam into a bundle-only spam path on mainnet. Missed bundles cost no gas and do not consume nonce.

Building One, Start to Finish#

Build and start an on-chain task

7 steps

1. 1

   Step 1

   Set the target

   Paste a contract address, an OpenSea drop URL, or a Transient mint URL. Zyper resolves what it can and prefills the rest.

2. 2

   Step 2

   Pick the function, or switch to hex

   ABI mode lists state-changing functions and renders an argument form. Hex mode sends raw calldata you already have — better when the transaction content is always identical.

3. 3

   Step 3

   Fill fields and value

   Enter one ABI argument per semicolon-separated field. Value is the total native-asset amount for the transaction; supported launchpads normally prefill it.

4. 4

   Step 4

   Choose wallets and RPC

   One task = one wallet. RPC selection is optional — by default every RPC for that chain is selected.

5. 5

   Step 5

   Set gas and timing

   Leave gas on auto unless you have a reason not to. Use Timestamp to hold the task until the drop opens.

6. 6

   Step 6

   Pick a mode

   Instant sends regardless of reverts. Simulate waits until the call stops reverting. Spam retries until something lands.

7. 7

   Step 7

   Save, then start

   Tasks are created Idle. Start the group or individual rows and watch the status pills.

Sweep#

For non-spam on-chain mints, you can enable sweep to transfer the NFT and ETH to another wallet instantly. This is usually used for wallets that are bought from WL market to protect your NFT and ETH.

Sweep is disabled in Spam because repeated attempts and post-success transfer sequencing do not compose cleanly.