Transactions

set-crowdloan-max-contribution

Set or clear the per-contributor max for a non-finalized crowdloan (creator only).

Caps how much any single contributor can put in, useful to keep a raise broadly distributed. Omitting the amount clears the limit. Only the creator may change it, and only while the loan has not been finalized.

Signer	Pallet	Wraps
`coldkey`	Crowdloan	`Crowdloan.set_max_contribution`

Parameters

Parameter	Type	Required	Description
`crowdloan_id`	integer	yes	Identifier of the crowdloan, assigned when it was created.
`new_max_contribution_tao`	number \| `"all"`	no	Largest total any single contributor may put in. Omit to clear the limit.

Address parameters (--hotkey, --coldkey, --dest, ...) accept a raw ss58 address, an address-book or proxy-book name, or a local wallet/hotkey name.

CLI

Preview with --dry-run (shows fee, effects, and policy result without submitting), then submit:

btcli tx set-crowdloan-max-contribution \
  --crowdloan-id <int> --dry-run
btcli tx set-crowdloan-max-contribution \
  --crowdloan-id <int> -w my_coldkey

Python

import bittensor as sub
from bittensor.wallet import Wallet

wallet = Wallet(name="my_coldkey", hotkey="my_hotkey")
intent = sub.SetCrowdloanMaxContribution(crowdloan_id=0)

async with sub.Client("finney") as client:
    plan = await client.plan(intent, wallet)   # fee, effects, policy — no submission
    result = await client.execute(intent, wallet)
    if not result.success:
        print(result.error.code, result.error.remediation)

Or build it by op name, as an agent would:

await client.execute_tool("set_crowdloan_max_contribution", {...}, wallet)