# ScriptMasterLabs — Federal Contractor Firms Lookup by NAICS

> ScriptMasterLabs — Federal Contractor Firms Lookup by NAICS 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 list of federal contractor firms filtered by 6-digit NAICS code, with optional state and set-aside type filtering

## Facts

- Endpoint: GET https://mcp-x402-discovery.onrender.com/x402/firms
- 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-federal-contractor-firms-lookup-by-naics-8fc6eb43
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_phVTTe8L5e4xHdgMq40bm

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-federal-contractor-firms-lookup-by-naics-8fc6eb43
```

Example prompt: Find me up to 15 SDVOSB-certified federal contractor firms in Texas for NAICS code 541511 — I need the full list of qualifying companies.

## When to prefer this

Use this endpoint when you need to discover federal contractor firms eligible for specific set-aside programs (SDVOSB, WOSB, SDB, MINORITY) within a given industry (NAICS code) and optionally a specific US state. It is well-suited for procurement research, teaming partner searches, competitive landscape analysis, and compliance verification in federal contracting contexts. It is pay-per-call via x402/USDC, making it cost-efficient for on-demand lookups rather than bulk data subscriptions.

## Known failure modes

- Missing or invalid NAICS code returns a 400 or validation error
- Payment not provided triggers a 402 Payment Required response unless using X-Api-Market-Key
- Invalid state code may return empty results or an error
- Requesting more than 25 rows returns a validation error
- No matching firms found returns an empty result set
- Service unavailability on the Render-hosted endpoint may return 503

## 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

A list of federal contractor firm records matching the specified NAICS code, optionally filtered by state and set-aside type (SDVOSB, WOSB, SDB, or MINORITY), with up to 25 firms per response.

## 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": [
      "naics"
     ],
     "properties": {
      "rows": {
       "type": "integer",
       "default": 10,
       "maximum": 25,
       "minimum": 1
      },
      "naics": {
       "type": "string",
       "description": "6-digit NAICS code (required)."
      },
      "state": {
       "type": "string",
       "description": "2-letter state code (optional)."
      },
      "set_aside": {
       "enum": [
        "SDVOSB",
        "WOSB",
        "SDB",
        "MINORITY"
       ],
       "type": "string",
       "default": "SDVOSB"
      }
     }
    }
   }
  },
  "output": {
   "properties": {
    "example": {}
   }
  }
 }
}
```

## Response schema (JSON Schema)

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

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/scriptmasterlabs-federal-contractor-firms-lookup-by-naics-8fc6eb43/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)