Roundhouse

nohumans.directory

A machine-readable registry of paid (x402) APIs and datasets, with automated verification and longitudinal reputation. Agents query it; you mostly don

SearchLiveeip155:8453Exactvia cdp
https://api.nohumans.directory/v1/demand/clusters
x402DemandMarket-researchDirectorySeller
Calls · 30d
2
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 9 snapshots so far.
$9.84
Verified settled volume
20 settlements proven x402 by their on-chain EIP-3009 marker.
$0.250
Listed price
As published in the catalog. Always read the live 402 before paying.
2
Calls · 30d
Upstream's own call count for this endpoint, not ours.
2
Unique payers · 30d
Last called 2026-09-19 20:32Z
—
Upstream on-chain volume
Reported by the source catalog.
Paid to
0xA733875f2F7E8A2817040B5c60B63Ae07D58a1d6

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.

Live 402 challenge

Captured by the enrichment pass, not read just now. Prices can change — always read the 402 the endpoint answers with.

{
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0xA733875f2F7E8A2817040B5c60B63Ae07D58a1d6",
      "amount": "250000",
      "scheme": "exact",
      "network": "eip155:8453",
      "mimeType": "application/json",
      "resource": "https://api.nohumans.directory/v1/demand/clusters",
      "description": "nohumans.directory demand clusters: what agents searched this directory for over the last 30 days, grouped by meaning rather than exact wording, with searches and distinct-client counts per cluster. Self-monitoring sellers excluded, exclusion published; k-anonymity floor of 3 clients per cluster. The free tier at /v1/demand is the same shape, delayed. Money buys currency and the clustering — never raw queries or client identifiers.",
      "outputSchema": {
        "input": {
          "type": "http",
          "method": "GET"
        },
        "output": {
          "type": "object",
          "properties": {
            "clusters": {
              "type": "array"
            },
            "window_days": {
              "type": "integer"
            },
            "delay_seconds": {
              "type": "integer"
            },
            "distinct_query_texts": {
              "type": "integer"
            },
            "total_queries_analyzed": {
              "type": "integer"
            },
            "clusters_below_privacy_floor": {
              "type": "integer"
            }
          }
        }
      },
      "maxAmountRequired": "250000",
      "maxTimeoutSeconds": 60
    }
  ],
  "resource": {
    "url": "https://api.nohumans.directory/v1/demand/clusters",
    "tags": [
      "x402",
      "demand",
      "market-research",
      "directory",
      "seller"
    ],
    "mimeType": "application/json",
    "description": "nohumans.directory demand clusters: what agents searched this directory for over the last 30 days, grouped by meaning rather than exact wording, with searches and distinct-client counts per cluster. Self-monitoring sellers excluded, exclusion published; k-anonymity floor of 3 clients per cluster. The free tier at /v1/demand is the same shape, delayed. Money buys currency and the clustering — never raw queries or client identifiers.",
    "serviceName": "nohumans.directory"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "discoverable": true
        },
        "output": {
          "type": "json",
          "example": {
            "clusters": [
              {
                "label": "ECB reference rates",
                "clients": 6,
                "searches": 44
              }
            ],
            "window_days": 30,
            "delay_seconds": 0,
            "distinct_query_texts": 312,
            "total_queries_analyzed": 1234,
            "clusters_below_privacy_floor": 41
          }
        }
      },
      "schema": {
        "properties": {
          "input": {
            "type": "object",
            "properties": {
              "queryParams": {
                "type": "object",
                "required": [],
                "properties": {}
              }
            }
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object"
              }
            }
          }
        }
      },
      "routeTemplate": "/v1/demand/clusters"
    },
    "builder-code": {
      "info": {
        "a": "bc_jght1wny"
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "properties": {
          "a": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "App builder code"
          },
          "s": {
            "type": "array",
            "items": {
              "type": "string",
              "pattern": "^[a-z0-9_]{1,32}$"
            },
            "maxItems": 11,
            "description": "Service builder codes"
          },
          "w": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$",
            "description": "Wallet builder code"
          }
        },
        "additionalProperties": false
      }
    }
  },
  "x402Version": 2
}

Accepts

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

0.25USDC≈ $0.25 USD
on Base · exact scheme

Pay 0.25 USDC on Base to 0xA733…8a1d6. The signed payment is good for 1 minute.

Paid to
0xA733…8a1d6
USD Coin contract
0x8335…02913
Payment window
1 minute
As published
250000 smallest units
Buys
nohumans.directory demand clusters: what agents searched this directory for over the last 30 days, grouped by meaning rather than exact wording, with searches and distinct-client counts per cluster. Self-monitoring sellers excluded, exclusion published; k-anonymity floor of 3 clients per cluster. The free tier at /v1/demand is the same shape, delayed. Money buys currency and the clustering — never raw queries or client identifiers.
Returns
application/json
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0xA733875f2F7E8A2817040B5c60B63Ae07D58a1d6",
    "amount": "250000",
    "scheme": "exact",
    "network": "eip155:8453",
    "mimeType": "application/json",
    "resource": "https://api.nohumans.directory/v1/demand/clusters",
    "description": "nohumans.directory demand clusters: what agents searched this directory for over the last 30 days, grouped by meaning rather than exact wording, with searches and distinct-client counts per cluster. Self-monitoring sellers excluded, exclusion published; k-anonymity floor of 3 clients per cluster. The free tier at /v1/demand is the same shape, delayed. Money buys currency and the clustering — never raw queries or client identifiers.",
    "outputSchema": {
      "input": {
        "type": "http",
        "method": "GET"
      },
      "output": {
        "type": "object",
        "properties": {
          "clusters": {
            "type": "array"
          },
          "window_days": {
            "type": "integer"
          },
          "delay_seconds": {
            "type": "integer"
          },
          "distinct_query_texts": {
            "type": "integer"
          },
          "total_queries_analyzed": {
            "type": "integer"
          },
          "clusters_below_privacy_floor": {
            "type": "integer"
          }
        }
      }
    },
    "maxAmountRequired": "250000",
    "maxTimeoutSeconds": 60
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "discoverable": true
      },
      "output": {
        "type": "json",
        "example": {
          "clusters": [
            {
              "label": "ECB reference rates",
              "clients": 6,
              "searches": 44
            }
          ],
          "window_days": 30,
          "delay_seconds": 0,
          "distinct_query_texts": 312,
          "total_queries_analyzed": 1234,
          "clusters_below_privacy_floor": 41
        }
      }
    },
    "schema": {
      "properties": {
        "input": {
          "type": "object",
          "properties": {
            "queryParams": {
              "type": "object",
              "required": [],
              "properties": {}
            }
          }
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object"
            }
          }
        }
      }
    },
    "routeTemplate": "/v1/demand/clusters"
  },
  "builder-code": {
    "info": {
      "a": "bc_jght1wny"
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "properties": {
        "a": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "App builder code"
        },
        "s": {
          "type": "array",
          "items": {
            "type": "string",
            "pattern": "^[a-z0-9_]{1,32}$"
          },
          "maxItems": 11,
          "description": "Service builder codes"
        },
        "w": {
          "type": "string",
          "pattern": "^[a-z0-9_]{1,32}$",
          "description": "Wallet builder code"
        }
      },
      "additionalProperties": false
    }
  }
}

Provenance

Seen in the source catalog
2026-09-19 20:32Z
Last indexed by Roundhouse
2026-09-24 07:20Z
Last enriched (probe, favicon, geo)
2026-09-15 15:45Z
x402 version
2
Max timeout
60s
Liveness probe
HTTP 402
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. 9 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 nohumans.directory 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=nohumans.directory'
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://api.nohumans.directory/v1/demand/clusters, 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.