# ScriptMasterLabs SAM Entity Verification API

> ScriptMasterLabs SAM Entity Verification 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 2026-09-16).

Verifies U.S. federal entity registration status and details via SAM.gov using UEI, CAGE code, or entity name, settled via x402 micropayment in USDC on Base.

## Facts

- Endpoint: GET https://acp-x402-discovery.onrender.com/x402/sam-entity-verification
- Price: $0.001/call
- Payment: x402
- Status: unknown
- Last checked: 2026-09-16
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/scriptmasterlabs-sam-entity-verification-api-5ede7d2e
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_VsNw2GUy_8UMP5Z9XYGym

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-sam-entity-verification-api-5ede7d2e
```

Example prompt: Can you verify whether the company with UEI G24VZA4RLMK3 is actively registered in SAM.gov and pull their entity details?

## When to prefer this

Use this endpoint when you need to programmatically verify U.S. federal entity registration status via SAM.gov and want pay-per-call micropayment billing (no subscription) settled in USDC on Base via x402. Prefer this over building a direct SAM.gov integration when you need lightweight, agent-native, pay-as-you-go access without managing API keys or monthly plans.

## Known failure modes

- Entity not found in SAM.gov — returns empty result or 404-equivalent
- Invalid or malformed UEI format — query rejected
- CAGE code does not match any registered entity
- Payment not settled via x402 — 402 Payment Required response
- SAM.gov upstream outage or rate limit — service temporarily unavailable

## 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 SAM.gov entity registration details for the queried entity, including registration status (active/inactive), entity name, UEI, CAGE code, and associated federal compliance metadata, based on query by UEI, CAGE code, or entity name.

## 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",
     "properties": {
      "uei": {
       "type": "string",
       "example": "G24VZA4RLMK3"
      },
      "cage": {
       "type": "string",
       "example": "21U51"
      },
      "entity_name": {
       "type": "string",
       "example": "Script Master Labs"
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-sam-entity-verification-api-5ede7d2e/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)