# Mast Drop Tip (scdoscan.io)

> Mast Drop Tip (scdoscan.io) is a paid API for AI agents from scdoscan.io, paid per call via x402, $1/call, status unknown (last checked 2026-10-16).

Sends a tip of any amount (minimum 1 USDC) to the Mast Drop game on the scdoscan.io platform via x402 micropayment on Base.

## Facts

- Endpoint: GET https://scdoscan.io/x402/mast-drop/tip?utm_source=zero.xyz
- Price: $1/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/mast-drop-tip-scdoscan-io-328bdf5b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_DvpIlNGngy9arkUsvtQCh

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 mast-drop-tip-scdoscan-io-328bdf5b
```

Example prompt: Send a tip of 2 USDC to the Mast Drop game on scdoscan.io using Base.

## When to prefer this

Use this endpoint when you want to send a voluntary tip of any amount (minimum 1 USDC) specifically to the Mast Drop game on scdoscan.io, as opposed to purchasing in-game items or hint packs. Choose this over other scdoscan.io endpoints when the user's intent is purely a gratuitous tip or donation rather than acquiring game assets.

## Known failure modes

- Insufficient USDC balance on Base — payment rejected
- Amount below minimum of 1 USDC — validation error
- Network congestion on Base causing delayed transaction confirmation
- x402 payment header missing or malformed — 402 Payment Required response
- SCDO AI Ledger agent unavailable — service temporarily down

## How this service works

Mast Drop - Tip (any amount). 1 USDC on Base, cost-plus priced by an SCDO AI Ledger agent (9Y9 PTY LTD, Australia).

## Output

Returns a JSON object with an 'ok' boolean indicating success, a 'tx' field containing the on-chain transaction hash, the 'amount' of USDC sent, and a 'credits' array reflecting any credited rewards or acknowledgment from the SCDO AI Ledger agent.

## 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",
      "HEAD",
      "DELETE"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "properties": {
      "amount": {
       "type": "string",
       "description": "USDC amount (min 1)"
      }
     }
    },
    "discoverable": {
     "type": "boolean"
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "ok": {
       "type": "boolean"
      },
      "tx": {
       "type": "string"
      },
      "amount": {
       "type": "string"
      },
      "credits": {
       "type": "array"
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/mast-drop-tip-scdoscan-io-328bdf5b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from scdoscan.io](https://www.zero.xyz/host/scdoscan.io/llms.txt)