# Script Master Labs — Cascade Signal (Equity Ticker)

> Script Master Labs — Cascade Signal (Equity Ticker) is a paid API for AI agents from mcp-x402.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns a cascade signal for a given U.S. equity ticker symbol, paid per-call in USDC via x402 on Base.

## Facts

- Endpoint: POST https://mcp-x402.onrender.com/x402/cascade-signal
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-14
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/script-master-labs-cascade-signal-equity-ticker-6bf5ca1b
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_AA3li_ZaC3e8UX3ylA1ph

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 script-master-labs-cascade-signal-equity-ticker-6bf5ca1b -d '<json body>'
```

Example prompt: What's the cascade signal for NVDA right now? Use the Script Master Labs x402 pay-per-call signal endpoint.

## When to prefer this

Choose this endpoint when you need a cascade-style signal for a specific U.S. equity ticker and are operating in an x402-compatible payment environment with USDC on Base. It is best suited for agents that can handle micropayment settlement natively and need per-call, on-demand signal data rather than bulk or subscription-based feeds.

## Known failure modes

- Missing or invalid ticker symbol returns a 400-level error
- Payment failure or insufficient USDC balance results in a 402 Payment Required response
- Unknown or unsupported ticker symbol may return null or empty signal
- Service unavailability on Render hosting may cause 503 errors
- Malformed request body (missing required 'symbol' field) returns a validation error

## How this service works

Pay-per-call crypto, RWA, federal, SEC, Section 8/HUD housing, and compliance APIs via x402. Primary: USDC on Base (eip155:8453). Also accepts Global Dollar (USDG) on Robinhood Chain (eip155:4663) via sovereign X-PAYMENT-TX. Hyphen routes only (e.g. /x402/gas-tracker, /x402/pha-lookup, /x402/sec-8k). MARKETPLACE REVIEW: use free /x402/playground/* (no key, no payment). Production /x402/* returns 402 unless paid via x402 or X-Api-Market-Key / X-API-Key from seller dashboard.

## Output

Returns cascade signal data for the requested equity ticker, likely including signal strength, direction, or related computed indicators. The response is returned after a per-call USDC payment is settled on Base via the x402 protocol.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "properties": {
  "symbol": {
   "type": "string",
   "description": "Equity ticker."
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/script-master-labs-cascade-signal-equity-ticker-6bf5ca1b/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402.onrender.com](https://www.zero.xyz/host/mcp-x402.onrender.com/llms.txt)