Roundhouse

Alien Probe

single-fact naics lookup. Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titles verbatim from the Census workbook, with the three range-spelled sectors (31-33, 44-45, 48-49) expanded to one entry per member sector. NAICS is a closed set, so a well-formed code absent from this snapshot is absent from the 2022 vintage. Refresh is a redeploy, never a live fetch.

OtherLiveeip155:8453Exactvia cdp
https://lookups.alienprobe.ai/v1/lookup/naics/:code
NaicsIndustryCompanyClassificationCensus
Calls · 30d
1↑ 40%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.58
Verified settled volume
36 settlements proven x402 by their on-chain EIP-3009 marker.
$0.0040
Listed price
As published in the catalog. Always read the live 402 before paying.
1
Calls · 30d
Upstream's own call count for this endpoint, not ours.
1
Unique payers · 30d
Last called 2026-09-12 17:00Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x701fd2Fc3295Ff2E98d986BD2032A966f54555f7

The wallet the 402 directs payment to. Its whole payment record — every payer, every chain — is on the merchant page.

Asset 0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913

Provider

The payTo wallet does not resolve to a registered ERC-8004 agent. That is not a verdict on the service — most of the catalog is unregistered.

Accepts

The payment requirements as published to the catalog. Read the live 402 before paying — a price here is a claim, not a quote.

0.004USDC≈ $0.004 USD
on Base · exact scheme

Pay 0.004 USDC on Base to 0x701f…555f7. The signed payment is good for 1 minute.

Paid to
0x701f…555f7
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
4000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x701fd2Fc3295Ff2E98d986BD2032A966f54555f7",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "pathParams": {
          "code": "513210"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "answer": {
            "code": "513210",
            "level": 6,
            "title": "Software Publishers",
            "vintage": "2022",
            "parent_code": "51321"
          },
          "source": {
            "name": "US Census Bureau 2022 NAICS reference file, 2-6 digit codes and titles",
            "vintage": "2022",
            "coverage": "Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titles verbatim from the Census workbook, with the three range-spelled sectors (31-33, 44-45, 48-49) expanded to one entry per member sector. NAICS is a closed set, so a well-formed code absent from this snapshot is absent from the 2022 vintage. Refresh is a redeploy, never a live fetch.",
            "snapshot_sha256": "c55e3851d335b79ede774cb06a2dfa39c9cd3f09afbf7187c84a97b2f91ef7d1"
          },
          "subject": {
            "type": "naics",
            "value": "513210"
          },
          "delivered_at": "2026-08-22T00:00:00.000Z",
          "schema_version": "naics-lookup.v1"
        }
      }
    },
    "schema": {
      "type": "object",
      "required": [
        "input",
        "output"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "pathParams"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "type": "string"
            },
            "pathParams": {
              "type": "object",
              "required": [
                "code"
              ],
              "properties": {
                "code": {
                  "type": "string",
                  "pattern": "^[0-9]{2,6}$",
                  "description": "the NAICS code to resolve, 2 to 6 digits"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type",
            "example"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "json"
            },
            "example": {
              "type": "object",
              "required": [
                "schema_version",
                "subject",
                "answer",
                "source",
                "delivered_at"
              ],
              "properties": {
                "answer": {
                  "type": "object",
                  "required": [
                    "code",
                    "title",
                    "level",
                    "parent_code",
                    "vintage"
                  ],
                  "properties": {
                    "code": {
                      "type": "string",
                      "pattern": "^[0-9]{2,6}$",
                      "description": "the NAICS code to resolve, 2 to 6 digits"
                    },
                    "level": {
                      "type": "integer",
                      "maximum": 6,
                      "minimum": 2
                    },
                    "title": {
                      "type": "string",
                      "minLength": 1
                    },
                    "vintage": {
                      "type": "string",
                      "const": "2022"
                    },
                    "parent_code": {
                      "type": [
                        "string",
                        "null"
                      ]
                    }
                  },
                  "additionalProperties": false
                },
                "source": {
                  "type": "object",
                  "required": [
                    "name",
                    "vintage",
                    "snapshot_sha256",
                    "coverage"
                  ],
                  "properties": {
                    "name": {
                      "type": "string",
                      "const": "US Census Bureau 2022 NAICS reference file, 2-6 digit codes and titles"
                    },
                    "vintage": {
                      "type": "string",
                      "const": "2022"
                    },
                    "coverage": {
                      "type": "string",
                      "const": "Complete for the bundled 2022 vintage: all 2129 NAICS 2022 codes at levels 2 through 6, titles verbatim from the Census workbook, with the three range-spelled sectors (31-33, 44-45, 48-49) expanded to one entry per member sector. NAICS is a closed set, so a well-formed code absent from this snapshot is absent from the 2022 vintage. Refresh is a redeploy, never a live fetch."
                    },
                    "snapshot_sha256": {
                      "type": "string",
                      "const": "c55e3851d335b79ede774cb06a2dfa39c9cd3f09afbf7187c84a97b2f91ef7d1"
                    }
                  },
                  "additionalProperties": false
                },
                "subject": {
                  "type": "object",
                  "required": [
                    "type",
                    "value"
                  ],
                  "properties": {
                    "type": {
                      "type": "string",
                      "const": "naics"
                    },
                    "value": {
                      "type": "string",
                      "pattern": "^[0-9]{2,6}$",
                      "description": "the NAICS code to resolve, 2 to 6 digits"
                    }
                  },
                  "additionalProperties": false
                },
                "delivered_at": {
                  "type": "string",
                  "minLength": 1
                },
                "schema_version": {
                  "type": "string",
                  "const": "naics-lookup.v1"
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        }
      }
    },
    "routeTemplate": "/v1/lookup/naics/:code"
  }
}

Provenance

Seen in the source catalog
2026-09-12 17:00Z
Last indexed by Roundhouse
2026-09-24 07:20Z
Last enriched (probe, favicon, geo)
2026-09-23 20:15Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 400
Report

Hand this page to an agent

Copy the prompt and paste it into Claude, an MCP client or your own agent — it will vet this service and call it over the free read API. No key, no account.

GET api.roundhouseai.io/v0/endpoints

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far. Verified volume counts only settlements with an on-chain EIP-3009 marker.

Open skill.md
Show the prompt
Using Roundhouse, look up the x402 service Alien Probe and tell me whether it is
worth paying: what a call costs, whether the endpoint answered when last probed, and what
its payment record actually shows.

curl -s 'https://api.roundhouseai.io/v0/endpoints?q=Alien%20Probe'
curl -s 'https://api.roundhouseai.io/v0/merchants/<the payTo wallet returned above>'

Then call it: read the price from the live 402 at https://lookups.alienprobe.ai/v1/lookup/naics/:code, never from
a cached figure, and pay with an x402 client.

The /v0 API needs an API key (`authorization: Bearer rh_live_…`) on everything except
/v0/unified* and /v0/endpoints. Mint a personal key for $0.01 at GET https://api.roundhouseai.io/v0/test/x402,
or use an organization key from https://roundhouseai.io/dashboard/team.

If you do not have Roundhouse tools or skills installed, read
https://roundhouseai.io/skill.md first — it is the whole procedure.