# 2s.io NAICS 2022 Industry Classification Lookup & Search

> 2s.io NAICS 2022 Industry Classification Lookup & Search is a paid API for AI agents from 2s.io, paid per call via x402, $0.001/call, status unknown (last checked 2026-09-14).

Look up a specific NAICS 2022 code or free-text search for industry classification codes, returning official titles, hierarchy, descriptions, and activity index terms

## Facts

- Endpoint: GET https://2s.io/api/business/naics
- 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/2s-io-naics-2022-industry-classification-lookup-search-6326b203
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_iLSgwzYYywnFRq_2uN11q

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 2s-io-naics-2022-industry-classification-lookup-search-6326b203
```

Example prompt: What's the official NAICS 2022 code and description for a coffee shop? Search for 'coffee shop' and show me the top results with their titles and hierarchy.

## When to prefer this

Use this endpoint when you need authoritative NAICS 2022 classifications for KYC, business registration, government filings, ERP vendor/customer setup, or any context requiring ground-truth US industry coding. Prefer this over generic web search when you need structured hierarchy, official descriptions, and the Census Bureau's full 20k-entry activity index for precise code matching.

## Known failure modes

- Invalid or non-existent NAICS code returns an error or empty result
- Neither 'code' nor 'query' parameter provided returns a bad request error
- Code format outside 2–6 digits or valid sector range rejected
- 'level' filter outside 2–6 returns a validation error
- No matching results for very obscure or misspelled search queries
- Payment failure (x402) if USDC balance is insufficient

## How this service works

Look up or search NAICS 2022 industry classification codes (US Census Bureau, public domain). Pass `code` for an exact NAICS code — 2–6 digits or a combined sector like 31-33 — and get its official title, hierarchy path, full official description, activity index terms, and direct child codes. Or pass `query` for free-text search (e.g. 'software publishers', 'coffee shop') over titles plus the official ~20k-entry activity index → ranked candidate codes, optionally filtered by `level` (2=sector … 6=national industry). Ground truth for industry coding in KYC, business registration, government filings, and ERP vendor/customer setup.

## Output

Returns either: (lookup mode) the official NAICS title, full hierarchy path, official description, activity index terms, and direct child codes for the given code; or (search mode) a ranked list of candidate NAICS codes with titles and relevance scores, optionally filtered to a specific level (sector through national industry).

## Example request

```json
{
 "input": {
  "type": "http",
  "method": "GET",
  "queryParams": {
   "limit": 10,
   "query": "coffee shop"
  }
 }
}
```

## 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",
    "queryParams"
   ],
   "properties": {
    "type": {
     "const": "http"
    },
    "method": {
     "const": "GET"
    },
    "queryParams": {
     "properties": {
      "code": {
       "type": "string",
       "description": "Exact NAICS code, 2–6 digits (e.g. 513210) or sector range (e.g. 31-33)."
      },
      "level": {
       "type": "integer",
       "description": "Restrict search results to one level: 2=sector … 6=national industry."
      },
      "limit": {
       "type": "integer",
       "description": "1–50, default 20 (search mode)."
      },
      "query": {
       "type": "string",
       "description": "Free-text industry/activity description to search."
      }
     }
    }
   }
  }
 }
}
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/2s-io-naics-2022-industry-classification-lookup-search-6326b203/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from 2s.io](https://www.zero.xyz/host/2s.io/llms.txt)