What is Airdrop Checker X402?
Airdrop Checker X402 is an MCP server that checks wallet eligibility for active crypto airdrops. It scans wallet interactions against known airdrop contracts via Etherscan and returns token names, estimated values, deadlines, and claim URLs. It is part of the klymax402 marketplace, using x402 micropayments (USDC on Base L2) for pay-per-call access—no API key, no signup, and no rate limits.
How to use Airdrop Checker X402?
Add the server to your MCP client config (e.g., Claude Desktop, Cursor, ElizaOS) with the URL https://airdrop-checker.api.klymax402.com/mcp. Alternatively, call the HTTP endpoint directly with a wallet address; any x402-aware client automatically handles the 402 payment challenge. Use the tool crypto_check_airdrops with parameter address (Ethereum wallet).
Key features of Airdrop Checker X402
- Pay-per-call via x402 (USDC on Base L2, no signup)
- No API key or rate‑limit walls
- Returns eligible airdrops with token name, value, and claim URL
- Supports any Ethereum wallet address (0x...)
- Integrates with MCP clients and x402-aware HTTP clients
Use cases of Airdrop Checker X402
- Discovering unclaimed airdrops for a given wallet address
- Monitoring multiple wallets for eligibility changes
- Building airdrop farming dashboards or agent workflows
- Checking eligibility on demand without manual Etherscan queries
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