# ScriptMasterLabs Stablecoin Watch API

> ScriptMasterLabs Stablecoin Watch 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 2026-10-26).

Returns real-time stablecoin market data, metrics, and monitoring information, paid per-call via x402 USDC micropayments on Base.

## Facts

- Endpoint: GET https://acp-x402-discovery.onrender.com/x402/stablecoin-watch?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-26
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-stablecoin-watch-api-b4255471
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_mzAfAOO88VtssCzRogvfc

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-b4255471
```

Example prompt: Pull the latest stablecoin watch data for me — I want to see peg status, supply, and any notable market movements across major stablecoins like USDC, USDT, and DAI right now.

## When to prefer this

Choose this endpoint when you need lightweight, pay-per-call stablecoin monitoring data without a subscription, especially in agent workflows that settle micropayments in USDC on Base via the x402 protocol. Suitable for occasional stablecoin health checks where a full data subscription is overkill.

## Known failure modes

- Payment failure or insufficient USDC balance results in 402 Payment Required response
- Invalid or missing properties parameter may return empty or malformed response
- Service hosted on Render free tier may experience cold-start latency or downtime
- Sparse input schema may cause unpredictable filtering behavior
- No schema documentation means response structure is not guaranteed to be stable

## 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 peg status, circulating supply, issuer details, price metrics, and other relevant monitoring indicators for tracked stablecoins. Response format is JSON with example-based schema.

## 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-b4255471/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)