# ScriptMasterLabs ACP x402 Airdrop Check API

> ScriptMasterLabs ACP x402 Airdrop Check API is a paid API for AI agents from acp-x402-discovery.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-27).

Checks whether a given wallet address is eligible for or has received a cryptocurrency airdrop, settled via x402 micropayment in USDC on Base.

## Facts

- Endpoint: GET https://acp-x402-discovery.onrender.com/x402/airdrop-check?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-27
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-acp-x402-airdrop-check-api-13d77cd4
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_QqzLXfvIp1N4QCIl1ZkXp

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 scriptmasterlabs-acp-x402-airdrop-check-api-13d77cd4
```

Example prompt: Can you check if my wallet address 0xAbC123... is eligible for or has already received any crypto airdrops, using the ScriptMasterLabs x402 airdrop check?

## When to prefer this

Use this endpoint when you need a quick, pay-per-call airdrop eligibility or claim status check for a specific wallet address without committing to a subscription. Ideal for agents handling one-off or low-frequency airdrop queries settled in USDC on Base via x402 micropayments.

## Known failure modes

- Invalid or malformed wallet address returns an error or empty result
- Wallet address not found in any airdrop registry returns no eligibility
- Payment failure via x402 prevents the call from completing
- Rate limiting or service unavailability on Render hosting
- Airdrop data may be stale or incomplete if not recently indexed

## How this service works

Pay-per-call crypto, RWA, federal, SEC, and compliance APIs. Settled in USDC on Base via x402. Hyphen routes only (e.g. /x402/rwa-aggregates, /x402/gas-tracker).

## Output

Returns airdrop eligibility and/or receipt status for the queried wallet address, potentially including details such as eligible token amounts, claim status, airdrop project name, and relevant blockchain metadata.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "properties": {
   "type": "string"
  }
 }
}
```

## Response schema (JSON Schema)

```json
{
 "example": {}
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-acp-x402-airdrop-check-api-13d77cd4/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from acp-x402-discovery.onrender.com](https://www.zero.xyz/host/acp-x402-discovery.onrender.com/llms.txt)