# ScriptMasterLabs MCP x402 Graph API

> ScriptMasterLabs MCP x402 Graph API is a paid API for AI agents from mcp-x402-discovery.onrender.com, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Returns a graph/discovery view of available pay-per-call data endpoints covering crypto, RWA, federal, SEC, and Section 8/HUD housing data via x402 micropayment protocol

## Facts

- Endpoint: GET https://mcp-x402-discovery.onrender.com/x402/graph
- 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/scriptmasterlabs-mcp-x402-graph-api-dd5d93d0
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_z242-amTNqcUp_LY8F0Ux

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-mcp-x402-graph-api-dd5d93d0
```

Example prompt: Show me the graph of all available pay-per-call data APIs on ScriptMasterLabs — I want to see what crypto, SEC, and HUD housing endpoints I can call with USDC, maybe filtered to the top 10 by reputation.

## When to prefer this

Use this endpoint when you need to programmatically discover what data APIs are available on the ScriptMasterLabs x402 platform before committing to specific calls. Prefer this over individual endpoint calls when you want a broad map of available routes across crypto, SEC, RWA, federal, and HUD housing domains. It is the discovery/graph layer — call it first to understand the menu of available pay-per-call APIs.

## Known failure modes

- 402 Payment Required if called without valid x402 payment or API key
- Empty or minimal response if no endpoints match the task/limit filters
- Service unavailable if the Render.com deployment is cold-started or down
- Unexpected response schema since output is loosely typed as {}
- Rate limiting or rejection if marketplace key is invalid or expired

## 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 a structured graph or listing of available x402-gated API endpoints on the platform, including route names, categories (crypto, RWA, federal, SEC, HUD housing, compliance), and metadata to help callers discover which endpoints they can pay to access. Response schema is minimally documented (example: {}) so exact shape may vary.

## Request schema (JSON Schema)

```json
{
 "type": "object",
 "$schema": "https://json-schema.org/draft/2020-12/schema",
 "required": [
  "input"
 ],
 "properties": {
  "input": {
   "type": "object",
   "required": [
    "type",
    "method"
   ],
   "properties": {
    "type": {
     "type": "string",
     "const": "http"
    },
    "method": {
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "task": {
       "type": "string"
      },
      "limit": {
       "type": "integer"
      },
      "min_rep": {
       "type": "integer"
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-mcp-x402-graph-api-dd5d93d0/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from mcp-x402-discovery.onrender.com](https://www.zero.xyz/host/mcp-x402-discovery.onrender.com/llms.txt)