# ScriptMasterLabs ACP x402 HTTP Check

> ScriptMasterLabs ACP x402 HTTP Check is a paid API for AI agents from acp-x402-scriptmasterlabs.onrender.com, paid per call via x402, $0.002/call, status unknown (last checked 2026-10-11).

Performs a basic HTTP connectivity check via the x402 pay-per-call API gateway, settling payment in USDC on Base

## Facts

- Endpoint: GET https://acp-x402-scriptmasterlabs.onrender.com/x402/http-check?utm_source=zero.xyz
- Price: $0.002/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-11
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-acp-x402-http-check-16a29ea1
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_uAj90Mx9ivbKmfuHerBhO

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-http-check-16a29ea1
```

Example prompt: Can you check if the HTTP endpoint at https://example.com/api/health is reachable and responding right now?

## When to prefer this

Use this endpoint when you need a pay-per-call, micropayment-settled HTTP connectivity check without committing to a subscription-based monitoring service. Ideal for ad-hoc, agent-driven checks where you need a quick one-off probe of an HTTP endpoint and want to pay per use in USDC via x402. Less suited for continuous uptime monitoring or bulk checks.

## Known failure modes

- Target URL is unreachable or returns a non-2xx status — endpoint may indicate failure or timeout
- Invalid or missing properties parameter — may return an error or empty response
- Payment settlement failure via x402 — call not processed if USDC payment on Base fails
- Service on Render may be cold-starting, causing high latency or timeout on first call
- Malformed URL input — endpoint may reject or return an error response

## 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 a basic HTTP connectivity check result indicating whether the target URL is reachable, along with HTTP status code and any response metadata available from the probe.

## 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-http-check-16a29ea1/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)