# ScriptMasterLabs ACP x402 Percentage API

> ScriptMasterLabs ACP x402 Percentage 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 2026-10-20).

Returns a percentage-based calculation or data point (crypto, RWA, federal, SEC, or compliance domain) via pay-per-call x402 micropayment settled in USDC on Base.

## Facts

- Endpoint: GET https://acp-x402-discovery.onrender.com/x402/percentage?utm_source=zero.xyz
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-10-20
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-acp-x402-percentage-api-8f4fbf94
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_1HftT0JZLK32-dKmDSQ6T

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-percentage-api-8f4fbf94
```

Example prompt: Can you pull the percentage data point from the ScriptMasterLabs x402 API — I need the current rate or ratio figure for my crypto or RWA compliance analysis?

## When to prefer this

Choose this endpoint when you need a percentage-based financial or compliance figure from crypto, RWA, federal, or SEC domains and are operating in a micropayment-enabled x402 environment with USDC on Base. Prefer this over free alternatives when pay-per-call access control and blockchain-settled payments are required or desired. Best suited for agentic workflows that already handle x402 payment headers automatically.

## Known failure modes

- Payment not settled — 402 response if USDC micropayment is not provided or fails
- Invalid or missing properties parameter — malformed request returns error
- Service unavailable — hosted on Render free tier which may spin down, causing cold-start delays or 503 errors
- Empty response schema — response structure is underspecified and may return minimal or undocumented fields
- Rate limiting or quota exhaustion if many calls are made in rapid succession

## 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 numeric percentage value or ratio relevant to the requested domain (crypto, RWA, federal, or SEC/compliance context), delivered as a JSON response after micropayment settlement in USDC on Base via x402 protocol.

## 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-percentage-api-8f4fbf94/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)