# SOC 2018 Child Code Lookup

> SOC 2018 Child Code Lookup is a paid API for AI agents from industry-occupation-codes.x402tookit.com, paid per call via x402, $0.02/call, status unknown (last checked 2026-11-02).

Returns the list of SOC 2018 codes one level below a given SOC code, traversing the hierarchy from major group to minor group to broad occupation to detailed occupation.

## Facts

- Endpoint: GET https://industry-occupation-codes.x402tookit.com/soc-children?utm_source=zero.xyz
- Price: $0.02/call
- Payment: x402
- Status: unknown
- Last checked: 2026-11-02
- Activations on Zero: 0
- Tags: x402
- Canonical page: https://www.zero.xyz/c/soc-2018-child-code-lookup-81406bd6
- Structured record (JSON): https://api.zero.xyz/v1/capabilities/cap_XSZYMlfhb8mwFd79BPRf8

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 soc-2018-child-code-lookup-81406bd6
```

Example prompt: Show me all the child codes one level below SOC code 15-1200 in the SOC 2018 hierarchy — I want to see what broad occupations are under that minor group.

## When to prefer this

Use this endpoint when you need to programmatically traverse the SOC 2018 occupational classification hierarchy one level at a time — from major group down to minor, broad, or detailed occupation. Prefer this over a flat code search when you need structured parent-child relationships rather than keyword matching, or when building UI trees, dropdown menus, or hierarchical classifiers based on official BLS SOC taxonomy.

## Known failure modes

- Invalid or malformed SOC code returns an error or empty children array
- Providing a detailed occupation code (lowest level) returns no children since there is no level below
- Omitting the code parameter when expecting major group children — major groups are not supported and the code must be omitted intentionally
- Payment failure due to insufficient USDC balance (x402 protocol)
- Network timeout or service unavailability

## How this service works

List the codes one level below a SOC 2018 code (major to minor to broad to detailed); omit the code for the 23 major groups.

## Output

Returns a structured object containing the parent SOC code and its metadata (code, title, level, level name), an array of child codes each with code, title, level, and level name, a child count, the child level name, source attribution, and an asOf timestamp. Also includes diagnostic fields like degraded status, disclaimer, and reasons.

## 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": {
     "enum": [
      "GET"
     ],
     "type": "string"
    },
    "queryParams": {
     "type": "object",
     "required": [],
     "properties": {
      "code": {
       "type": "string",
       "description": "SOC 2018 group code like 15-0000, 15-1200 or 15-1250 (omit for the major groups)"
      }
     }
    }
   },
   "additionalProperties": false
  },
  "output": {
   "type": "object",
   "required": [
    "type"
   ],
   "properties": {
    "type": {
     "type": "string"
    },
    "example": {
     "type": "object",
     "properties": {
      "asOf": {
       "type": [
        "null",
        "string"
       ]
      },
      "parent": {
       "type": [
        "null",
        "object"
       ],
       "properties": {
        "code": {
         "type": [
          "null",
          "string"
         ]
        },
        "level": {
         "type": [
          "null",
          "number"
         ]
        },
        "title": {
         "type": [
          "null",
          "string"
         ]
        },
        "levelName": {
         "type": [
          "null",
          "string"
         ]
        }
       }
      },
      "source": {
       "type": [
        "null",
        "string"
       ]
      },
      "reasons": {
       "type": [
        "array",
        "null"
       ]
      },
      "summary": {
       "type": [
        "null",
        "string"
       ]
      },
      "verdict": {
       "type": [
        "null",
        "string"
       ]
      },
      "children": {
       "type": [
        "array",
        "null"
       ],
       "items": {
        "type": "object",
        "properties": {
         "code": {
          "type": [
           "null",
           "string"
          ]
         },
         "level": {
          "type": [
           "null",
           "number"
          ]
         },
         "title": {
          "type": [
           "null",
           "string"
          ]
         },
         "levelName": {
          "type": [
           "null",
           "string"
          ]
         }
        }
       }
      },
      "degraded": {
       "type": [
        "boolean",
        "null"
       ]
      },
      "childCount": {
… (truncated)
```

## More

- Live health (JSON, refreshed every minute): https://www.zero.xyz/c/soc-2018-child-code-lookup-81406bd6/health.json
- [Zero catalog index](https://www.zero.xyz/llms.txt)
- [Other services from industry-occupation-codes.x402tookit.com](https://www.zero.xyz/host/industry-occupation-codes.x402tookit.com/llms.txt)