# Klymax402 Airdrop Checker

> Klymax402 Airdrop Checker is a paid API for AI agents from klymax402.com, paid per call via x402, $0.012/call, status unknown (last checked 2026-09-14).

Checks an Ethereum wallet address for active airdrop eligibility, returning eligible airdrops, potential rewards, and transaction scan data.

## Facts

- Endpoint: GET https://klymax402.com/api/airdrop-checker/api/check
- Price: $0.012/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/klymax402-airdrop-checker-f4bd69b2
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_xPrOaA-4KzOhFBe3800Di

Status and success rate cover calls made through Zero and Zero's own probes. Third-party monitors may report differently.

## How to call it through Zero

Zero handles the 402 payment challenge and records the run. With the Zero CLI installed (`npm i -g @zeroxyz/cli`):

```sh
zero fetch --capability klymax402-airdrop-checker-f4bd69b2
```

Example prompt: Can you check if my Ethereum wallet 0x4B20993Bc481177ec7E8f571ceCaE8A9e22C02db is eligible for any active airdrops and tell me what I might be able to claim?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call airdrop eligibility check for any Ethereum wallet address without managing API keys. Ideal for agents that need on-demand DeFi airdrop lookups without committing to a subscription service. Choose this over manually querying individual airdrop protocols when you want aggregated results across multiple active airdrops in a single call.

## Known failure modes

- Invalid or malformed Ethereum address returns an error
- No eligible airdrops found returns empty eligibility object
- Wallet with no transaction history may return zero scanned transactions
- Network or provider downtime may cause timeout or 5xx error
- Payment failure (insufficient USDC balance) prevents the call from completing

## How this service works

One MCP endpoint gives your AI agent access to 100 APIs -- crypto, DeFi, web, AI, finance and utilities. No API keys, USDC on Base from $0.003/call.

## Output

Returns a JSON object with the queried wallet address, eligibility details for each active airdrop, potential reward amounts, total number of active airdrops checked, number of transactions scanned, and the timestamp of the check.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [
      "address"
     ],
     "properties": {
      "address": {
       "type": "string",
       "description": "Ethereum wallet address (0x...)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object"
    }
   }
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "type": "json",
 "example": {
  "address": "example",
  "eligible": {},
  "checkedAt": "example",
  "potential": {},
  "totalActiveAirdrops": 1,
  "transactionsScanned": 1
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/klymax402-airdrop-checker-f4bd69b2/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from klymax402.com](https://www.zero.xyz/host/klymax402.com/llms.txt)