Crypto Whitelist & Airdrop
Giveaway Tool with Wallet Validation
Collect validated wallet addresses, grow your Telegram and Discord communities, and build your whitelist or airdrop distribution list in a single giveaway. SweepWidget auto-validates BTC, ETH, Solana, and BEP-20 addresses so you never export a list full of typos and invalid wallets.
Crypto Wallet Address Collection
SweepWidget supports five wallet address entry methods. Each one creates a field inside the giveaway widget where participants paste their wallet address. For BTC, ETH/BEP-20, BEP-2, and Solana, the address is automatically validated against the correct format before the entry is accepted. Invalid addresses are rejected on the spot. No more cleaning up malformed addresses from your export file.
Validates Bitcoin addresses (Legacy, SegWit, and Bech32 formats) before accepting the entry. Invalid or malformed addresses are rejected immediately.
Validates Ethereum and BEP-20 (BSC) addresses. Both use the same 0x format, so a single entry method covers ERC-20 tokens, BSC tokens, and NFTs on either chain.
Validates BEP-2 (Binance Chain) addresses. The address format starts with "bnb" and is checked for correct length and encoding before the entry is accepted.
Validates Solana addresses (Base58 encoded, 32-44 characters). Popular for NFT mints, SPL token airdrops, and Solana-based DeFi protocols.
A free-text wallet field for any other blockchain. Use this for Polygon, Avalanche, Cosmos, Cardano, Tron, or any chain not covered by the auto-validated methods. No format validation on this field.
Commonly Paired Entry Methods for Crypto Projects
Wallet collection is one part of a token launch or airdrop campaign. Most crypto projects combine wallet addresses with community growth actions in a single giveaway. Here are the entry methods crypto teams pair most often with wallet collection.
Grow your Telegram community alongside wallet collection. API-verified through the Telegram Bot API, so every join is confirmed as real. Full Telegram giveaway details.
Build your Discord server alongside the airdrop. API-verified join confirmation prevents fake entries. Full Discord giveaway details.
X is where crypto projects announce and gain visibility. Follow grows your audience. Repost spreads your giveaway to each participant's followers. Post lets participants create their own announcement. Full X giveaway details.
Each participant gets a unique referral link. Every person they bring in earns them bonus entries. This creates the viral loop that makes airdrops spread. Full referral giveaway details.
Capture email addresses alongside wallet addresses. Use email for token launch announcements, mint date reminders, and post-airdrop communication. Syncs with 35+ CRM integrations. Full email subscription details.
All wallet address entry methods and the social platform methods listed above can be combined in a single giveaway. Participants complete each action to maximize their entries, and you collect wallet addresses, grow communities, and build email lists simultaneously.
Anti-Bot Protection and Wallet Validation
Crypto airdrops and whitelist campaigns attract sybil attackers and bot farms. One person creates dozens of wallets, submits them all through different accounts, and dilutes your distribution list. SweepWidget layers multiple security measures so your whitelist contains real people, not bot-generated addresses.
Wallet Address Auto-Validation
BTC, ETH/BEP-20, BEP-2, and Solana wallet addresses are validated against their correct format before the entry is accepted. If a participant pastes a truncated address, an address from the wrong chain, or random text, the entry is rejected. You never have to manually scrub your wallet list for formatting errors. The export file is clean from the start.
reCAPTCHA and Automation Blocking
Google reCAPTCHA stops automated scripts from mass-submitting wallet addresses. This is the first line of defense against bot farms that use scripts to submit hundreds of entries per hour. Combined with VPN blocking, it makes automated submission significantly harder.
Geo-Blocking for Regulatory Compliance
Restrict your airdrop or whitelist to participants from specific countries. This is important for token projects that need to exclude residents of jurisdictions with restrictive crypto regulations. Block specific countries or allow only specific ones. Geo-blocking uses IP-based location detection.
Email Verification
Require participants to verify their email address before their entry counts. This adds a layer of identity confirmation. A bot farm can generate thousands of wallet addresses, but verifying thousands of unique email addresses is much harder. SweepWidget also blocks high-risk email TLDs commonly used by disposable email services.
Blacklist
Block specific email addresses and IP addresses. If someone abused a previous campaign, they are automatically blocked from future ones. Blacklists persist across all your giveaways.
Whitelist
Restrict entry to a pre-approved list of email addresses. Use this for invite-only whitelist campaigns, early supporter rewards, or private presale access. Only people on your list can enter.
VPN Blocking
Detect and block entries from VPN and proxy connections. Prevents sybil attackers from cycling through different IP addresses to submit multiple entries with different wallets.
IP Limits
Set the maximum number of entries allowed from a single IP address. A straightforward way to prevent one person from submitting multiple wallet addresses from the same network.
Every wallet address entry method includes auto-validation on the Premium plan. Combine with anti-bot protection and geo-blocking for a clean, compliant whitelist.
Build a Full Token Launch Campaign in One Giveaway
Most crypto projects run airdrops and whitelist campaigns across multiple tools. One tool for the whitelist form, another for Telegram growth, a third for referral tracking, and manual spreadsheets to tie it all together. SweepWidget handles everything in a single giveaway. Here is how crypto teams combine entry methods to run a complete token launch campaign.
Telegram Community Growth
API-verified channel and group membership
Telegram is where crypto communities live. Add Join Channel and Join Group as entry methods, both API-verified through the Telegram Bot API. Participants must actually join before the entry is credited. No self-reporting, no pasting usernames. You grow your announcement channel and discussion group at the same time.
Weight Telegram actions at 5 points each to make them the most attractive entries in your giveaway. Add Leave Comment as a third Telegram action to drive engagement beyond passive membership. Every Telegram action is confirmed server-side through the bot.
Discord Server Building
API-verified server membership
Discord is the second hub for crypto communities, especially for NFT projects and DeFi protocols that need structured channels for governance, support, and alpha discussions. The Discord Join Server entry method uses OAuth to verify the participant actually joined your server.
Running Telegram and Discord growth in the same giveaway means participants join both platforms as part of a single entry flow. You build two community platforms without running two separate campaigns.
Twitter/X Viral Reach
Follow, Post, and Repost actions (Free plan)
X is the discovery layer for crypto. When participants complete a Repost entry, your giveaway announcement spreads to their followers organically. Follow grows your X audience. Post lets participants create their own tweet about your project, generating unique content and reach beyond a single repost.
All three X entry methods are available on the Free plan. Even if your wallet collection requires Premium, the X actions cost nothing extra. Add them to every crypto giveaway for baseline visibility.
Referral Viral Loops
Unique referral links with bonus entries
The Refer-a-Friend entry method gives each participant a unique referral link. Every person they bring in earns them bonus entries. This is the mechanism that makes airdrops go viral. One person shares with five friends, those five share with five more, and your whitelist grows exponentially.
Pair referrals with a leaderboard to rank participants by referral count. Top referrers get guaranteed whitelist spots or larger token allocations. This creates competition and incentivizes aggressive sharing.
Example Campaign Stack for a Token Launch
This setup collects wallet addresses, grows Telegram and Discord, drives X visibility, and builds viral referral loops. All in a single giveaway. Export wallet addresses as CSV when the campaign ends.
Frequently Asked Questions
How do I run a crypto airdrop giveaway?
Create a giveaway in SweepWidget and add one or more wallet address entry methods (BTC, ETH/BEP-20, BEP-2, Solana, or Other). Each participant pastes their wallet address, which is auto-validated before the entry is accepted. Add community growth actions like Telegram Join, Discord Join, and X Follow/Repost to grow your channels alongside wallet collection. When the campaign ends, export all validated wallet addresses as a CSV file for your airdrop distribution.
How does wallet address validation work in SweepWidget?
For BTC, ETH/BEP-20, BEP-2, and Solana wallet address entry methods, SweepWidget checks the submitted address against the correct format for that blockchain. BTC addresses are validated for Legacy, SegWit, and Bech32 formats. ETH/BEP-20 addresses are checked for the 0x prefix and correct length. Solana addresses are validated as Base58 encoded strings. If the address does not match the expected format, the entry is rejected and the participant is asked to correct it.
Can I run an NFT whitelist presale with SweepWidget?
Yes. Add a wallet address entry method for the chain your NFT is on (typically ETH/BEP-20 or Solana), combine it with community actions like Discord Join and X Follow, and optionally add a leaderboard so top participants earn guaranteed whitelist spots. When the campaign ends, export the wallet addresses and use them as your whitelist for the mint. You can also use SweepWidget's email whitelist feature to restrict the giveaway to pre-approved participants only.
How do I prevent bots from entering my crypto giveaway?
SweepWidget provides multiple layers of anti-bot protection. Google reCAPTCHA blocks automated scripts. VPN blocking prevents users from masking their location. IP address limits stop one person from submitting multiple entries. Email verification confirms a real person behind each entry. Geo-blocking restricts entries to eligible countries. Email and IP blacklists let you block known abusers across all your campaigns. Telegram and Discord entry methods use API verification to confirm real membership.
What wallet types does SweepWidget support?
SweepWidget supports five wallet address entry methods. BTC (auto-validated), ETH/BEP-20 (auto-validated, covers Ethereum and Binance Smart Chain), BEP-2 (auto-validated, Binance Chain), Solana (auto-validated), and Other (free-text field for any blockchain). The Other field can be used for Polygon, Avalanche, Cosmos, Cardano, Tron, or any other chain. All wallet methods are available on the Premium plan.
Can I combine crypto wallet collection with social media entry methods?
Yes. This is the standard approach for crypto airdrop and whitelist campaigns. Add wallet address collection alongside Telegram Join, Discord Join, X Follow/Repost, Refer-a-Friend, and Email Subscription in a single giveaway. Participants complete each action to maximize their entries, and you collect wallet addresses while growing your communities at the same time. SweepWidget supports over 90 entry methods across 30+ platforms that can all be combined in one contest.
Launch Your Crypto Airdrop or Whitelist Campaign
Collect validated wallet addresses, grow Telegram and Discord, drive X visibility, and build viral referral loops. All in a single giveaway with anti-bot protection built in.
Create A Whitelist Or Airdrop Giveaway