2s.

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.

Eligibility: probeable
Failures: 0
Last quote: 2026-08-12 22:00:02 UTC
Last probe: 2026-08-12 22:00:02 UTC

Payment requirements / accepts[] 2 options

State	Network	Scheme	Atomic amount	Asset	payTo / untrusted
active	eip155:8453	exact	2500	0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913	0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5
active	solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp	exact	2500	EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v	TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn

All advertised payment options are stored. Base (`eip155:8453`) is the operational network for ranking and canaries; non-Base options remain visible for transparency.

Probe evidence 1 recent

healthy 2026-08-12 22:00:02 UTC GET · HTTP 402 · 51ms · accepts 2 · base 1 ok

Request: GET https://2s.io/api/business/naics
Robots: allow
Note: http_402;accepts=2;base=1
Accepts fingerprint: 6fcb2e53e8049ab29748ddd9a2e9ed532a49654f11ec569f4e7b9fb89b260a10

Accepts snapshot

[
  {
    "amount": "2500",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "assetTransferMethod": null,
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "maxTimeoutSeconds": 60,
    "network": "eip155:8453",
    "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
    "paymentFlow": null,
    "raw": {
      "amount": "2500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "max_timeout_seconds": 60,
      "network": "eip155:8453",
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "pay_to": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "scheme": "exact"
    },
    "scheme": "exact"
  },
  {
    "amount": "2500",
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "assetTransferMethod": null,
    "extra": {
      "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
      "name": "USDC",
      "version": "1"
    },
    "maxTimeoutSeconds": 60,
    "network": "solana:5eykt4usfv8p8njdtrepy1vzqkqzkvdp",
    "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
    "paymentFlow": null,
    "raw": {
      "amount": "2500",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USDC",
        "version": "1"
      },
      "maxTimeoutSeconds": 60,
      "max_timeout_seconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "pay_to": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "scheme": "exact"
    },
    "scheme": "exact"
  }
]

PaymentRequired raw

{
  "accepts": [
    {
      "amount": "2500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "scheme": "exact"
    },
    {
      "amount": "2500",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USDC",
        "version": "1"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "scheme": "exact"
    }
  ],
  "error": "PAYMENT-SIGNATURE required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "limit": 3,
            "query": "software publishers"
          },
          "type": "http"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "properties": {
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "properties": {
                  "code": {
                    "description": "Exact NAICS code, 2–6 digits (e.g. 513210) or sector range (e.g. 31-33).",
                    "type": "string"
                  },
                  "level": {
                    "description": "Restrict search results to one level: 2=sector … 6=national industry.",
                    "type": "integer"
                  },
                  "limit": {
                    "description": "1–50, default 20 (search mode).",
                    "type": "integer"
                  },
                  "query": {
                    "description": "Free-text industry/activity description to search.",
                    "type": "string"
                  }
                }
              },
              "type": {
                "const": "http"
              }
            },
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "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.",
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "serviceName": "2s",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "url": "https://2s.io/api/business/naics"
  },
  "x402Version": 2
}

Response headers

{
  "access-control-allow-headers": "Authorization, Content-Type",
  "access-control-allow-methods": "GET, POST, OPTIONS",
  "access-control-allow-origin": "*",
  "access-control-max-age": "86400",
  "age": "0",
  "cache-control": "public, max-age=0, must-revalidate",
  "content-security-policy": "default-src 'none'; style-src 'self' 'unsafe-inline'; img-src 'self' data:; font-src 'self'; connect-src 'self'; frame-ancestors 'none'; base-uri 'none'",
  "content-type": "application/json",
  "date": "Wed, 12 Aug 2026 22:00:02 GMT",
  "payment-required": "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",
  "permissions-policy": "geolocation=(), camera=(), microphone=()",
  "referrer-policy": "no-referrer",
  "server": "Vercel",
  "strict-transport-security": "max-age=63072000; includeSubDomains; preload",
  "transfer-encoding": "chunked",
  "x-content-type-options": "nosniff",
  "x-frame-options": "DENY",
  "x-matched-path": "/api/business/naics",
  "x-payment-requirements": "x402",
  "x-vercel-cache": "MISS",
  "x-vercel-id": "iad1::iad1::jx4kn-1786572002235-a4c8bd02b1df"
}

Response body

{
  "accepts": [
    {
      "amount": "2500",
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "maxTimeoutSeconds": 60,
      "network": "eip155:8453",
      "payTo": "0x2b6D4988Db4723E6908Db86Ab2b8dFBc51FC32C5",
      "scheme": "exact"
    },
    {
      "amount": "2500",
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "Hc3sdEAsCGQcpgfivywog9uwtk8gUBUZgsxdME1EJy88",
        "name": "USDC",
        "version": "1"
      },
      "maxTimeoutSeconds": 60,
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "payTo": "TW6ntaGzvj63ZgPjszd4FCGmVTGfzv1MAYZbjYcyWhn",
      "scheme": "exact"
    }
  ],
  "error": "PAYMENT-SIGNATURE required",
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "method": "GET",
          "queryParams": {
            "limit": 3,
            "query": "software publishers"
          },
          "type": "http"
        },
        "output": {
          "example": {
            "items": [
              {
                "code": "513210",
                "description": "This industry comprises establishments primarily engaged in computer software publishing or publishing and reproduction…",
                "heading": "Information > Publishing Industries > Software Publishers > Software Publishers",
                "indexTerms": [
                  "Applications software, computer, packaged",
                  "Computer software publishers, packaged"
                ],
                "level": 6,
                "title": "Software Publishers"
              }
            ],
            "ok": true,
            "source": {
              "license": "Public domain (US government work)",
              "provider": "North American Industry Classification System — NAICS 2022 (US Census Bureau)",
              "url": "https://www.census.gov/naics/"
            },
            "total": 1
          },
          "schema": {
            "properties": {
              "items": {
                "items": {
                  "properties": {
                    "code": {
                      "type": "string"
                    },
                    "description": {
                      "type": "string"
                    },
                    "heading": {
                      "type": "string"
                    },
                    "indexTerms": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "level": {
                      "type": "integer"
                    },
                    "title": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": "array"
              },
              "ok": {
                "type": "boolean"
              },
              "source": {
                "properties": {
                  "license": {
                    "type": "string"
                  },
                  "provider": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "total": {
                "type": "integer"
              }
            },
            "type": "object"
          },
          "type": "json"
        }
      },
      "schema": {
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "input": {
            "properties": {
              "method": {
                "const": "GET"
              },
              "queryParams": {
                "properties": {
                  "code": {
                    "description": "Exact NAICS code, 2–6 digits (e.g. 513210) or sector range (e.g. 31-33).",
                    "type": "string"
                  },
                  "level": {
                    "description": "Restrict search results to one level: 2=sector … 6=national industry.",
                    "type": "integer"
                  },
                  "limit": {
                    "description": "1–50, default 20 (search mode).",
                    "type": "integer"
                  },
                  "query": {
                    "description": "Free-text industry/activity description to search.",
                    "type": "string"
                  }
                }
              },
              "type": {
                "const": "http"
              }
            },
            "required": [
              "type",
              "method",
              "queryParams"
            ],
            "type": "object"
          },
          "output": {
            "properties": {
              "items": {
                "items": {
                  "properties": {
                    "code": {
                      "type": "string"
                    },
                    "description": {
                      "type": "string"
                    },
                    "heading": {
                      "type": "string"
                    },
                    "indexTerms": {
                      "items": {
                        "type": "string"
                      },
                      "type": "array"
                    },
                    "level": {
                      "type": "integer"
                    },
                    "title": {
                      "type": "string"
                    }
                  },
                  "type": "object"
                },
                "type": "array"
              },
              "ok": {
                "type": "boolean"
              },
              "source": {
                "properties": {
                  "license": {
                    "type": "string"
                  },
                  "provider": {
                    "type": "string"
                  },
                  "url": {
                    "type": "string"
                  }
                },
                "type": "object"
              },
              "total": {
                "type": "integer"
              }
            },
            "type": "object"
          }
        },
        "required": [
          "input"
        ],
        "type": "object"
      }
    }
  },
  "resource": {
    "description": "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.",
    "iconUrl": "https://2s.io/icon-512.png",
    "mimeType": "application/json",
    "serviceName": "2s",
    "tags": [
      "public-records",
      "identifiers",
      "ai-agents",
      "us-gov-data",
      "x402",
      "upto-billing",
      "ai-gateway",
      "agent-infrastructure"
    ],
    "url": "https://2s.io/api/business/naics"
  },
  "x402Version": 2
}

Request headers

{
  "accept": "*/*",
  "user-agent": "Fetch402Bot/0.1 (+https://fetch402.com/crawler; contact: crawler@fetch402.com)"
}

Machine contract

Schemas.

InputJSON

{
  "method": "GET",
  "queryParams": {
    "limit": 3,
    "query": "software publishers"
  },
  "type": "http"
}

OutputJSON

{}

Latest evidenceProbe

healthy

No probe evidence recorded yet.

Run / 2026-08-12 22:00:02 UTC · ok

Provenance 2 sources

cdp_bazaar

GET https://2s.io/api/business/naics

Seen / 2026-08-13 00:00:36 UTC

quote_probe

GET https://2s.io/api/business/naics

Seen / 2026-08-12 22:00:02 UTC

Untrusted payment target

Fetch402 records advertised payTo values, but does not treat them as verified merchant identity until paid-delivery validation lands.