# ScriptMasterLabs Stablecoin Watch API

> ScriptMasterLabs Stablecoin Watch API is a paid API for AI agents from acp-x402-scriptmasterlabs.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-10-11).

Returns real-time stablecoin market data, metrics, and monitoring information for major stablecoins, paid per-call via USDC on Base using the x402 protocol.

## Facts

- Endpoint: GET https://acp-x402-scriptmasterlabs.onrender.com/x402/stablecoin-watch?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-stablecoin-watch-api-3b6fca92
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_5E0l9uQ6No2ZluZZlXBcP

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-stablecoin-watch-api-3b6fca92
```

Example prompt: Pull the latest stablecoin watch data for USDC and USDT so I can check their peg stability and current market caps.

## When to prefer this

Choose this endpoint when you need pay-per-call, microtransaction-priced stablecoin market data settled in USDC on Base via the x402 protocol — particularly when building crypto-native agents that already handle x402 payments and need stablecoin peg monitoring or supply metrics without a subscription commitment.

## Known failure modes

- Payment not received or x402 payment header missing — returns 402 Payment Required
- Invalid or unsupported properties filter — may return empty or malformed response
- Service unavailable on Render free tier cold start — high latency or timeout
- Upstream data source outage causing stale or missing stablecoin data
- Malformed request returns generic error with no schema detail

## 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 stablecoin market data including current price, peg status, circulating supply, market capitalization, and related metrics for major stablecoins. Response is a JSON object with stablecoin-specific fields, though the exact schema is minimally documented.

## 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-stablecoin-watch-api-3b6fca92/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from acp-x402-scriptmasterlabs.onrender.com](https://www.zero.xyz/host/acp-x402-scriptmasterlabs.onrender.com/llms.txt)