Api Endpoint

nohumans.directory

Should my agent pay this x402 endpoint? For any listing in nohumans.directory (id from /v1/discover), one call returns pay, caution or avoid with plain reasons: probe history and latency, whether its payment address is stable, whether we bought from it ourselves and it delivered (with the on-chain tx), its on-chain payments in the last 30 days, and whether the live price matches the listed one. Check before spending on an unfamiliar paid API.

Open interactive test console

Offering

Provider
api.nohumans.directory
Method
GET
Offering type
Api Endpoint
Transport type
http
Category
Blockchain And Crypto
Delivery
Not provided
Pricing model
Not provided
x402 version
2

Endpoint context

URL
https://api.nohumans.directory/v1/listings/:id/verdict
MIME type
application/json
First seen
2026-10-16T01:50:10.647Z
Last seen
Tags
trust-score, reputation, due-diligence, fraud-check, pre-spend

Payment pricing

x402 payment terms are the authoritative price for calling this endpoint.

Payment option 1
0.005 USDC
Atomic price: 5000 · Network: eip155:8453 · Asset: USDC · Scheme: exact
Raw x402 terms
[
  {
    "scheme": "exact",
    "network": "eip155:8453",
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "amount": "5000",
    "payTo": "0xA733875f2F7E8A2817040B5c60B63Ae07D58a1d6"
  }
]

Observed health

Status
Healthy
Latest latency
84 ms
Average latency
302 ms
HTTP status
402
Last checked
Reachability
100% over 14 checks

Latency is measured to the first response headers. A reachable result does not verify response accuracy or merchant identity.

Input schema

{
  "type": "object",
  "properties": {
    "type": {
      "type": "string",
      "const": "http"
    },
    "method": {
      "type": "string",
      "enum": [
        "GET"
      ]
    },
    "discoverable": {
      "type": "boolean"
    },
    "pathParams": {
      "type": "object",
      "properties": {
        "id": {
          "type": "string",
          "description": "Listing id, as returned by GET /v1/discover or /v1/listings. Any listing works."
        }
      },
      "required": [
        "id"
      ]
    },
    "queryParams": {
      "type": "object",
      "properties": {},
      "required": []
    }
  },
  "required": [
    "type",
    "method"
  ]
}

Output schema

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "properties": {
        "discoverable": {
          "type": "boolean"
        },
        "method": {
          "enum": [
            "GET"
          ],
          "type": "string"
        },
        "pathParams": {
          "properties": {
            "id": {
              "description": "Listing id, as returned by GET /v1/discover or /v1/listings. Any listing works.",
              "type": "string"
            }
          },
          "required": [
            "id"
          ],
          "type": "object"
        },
        "queryParams": {
          "properties": {},
          "required": [],
          "type": "object"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "method"
      ],
      "type": "object"
    },
    "output": {
      "properties": {
        "example": {
          "properties": {
            "as_of": {
              "type": "integer"
            },
            "endpoint_url": {
              "type": "string"
            },
            "listing_id": {
              "type": "string"
            },
            "method_note": {
              "type": [
                "string",
                "null"
              ]
            },
            "onchain_30d": {
              "properties": {
                "payments": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "source": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "unique_payers": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "volume_usd": {
                  "type": [
                    "number",
                    "null"
                  ]
                }
              },
              "type": "object"
            },
            "paid_verification": {
              "description": "our own real purchase from this endpoint and whether it delivered",
              "properties": {
                "tx_hash": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "verified": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "payto": {
              "properties": {
                "address": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "distinct_recent": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "first_seen_at": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "shared_by_listings": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "stable_since": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "unstable": {
                  "type": "boolean"
                }
              },
              "type": "object"
            },
            "price": {
              "properties": {
                "declared": {
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "matches": {
                  "type": [
                    "boolean",
                    "null"
                  ]
                },
                "observed_usd": {
                  "type": [
                    "number",
                    "null"
                  ]
                }
              },
              "type": "object"
            },
            "probe": {
              "properties": {
                "consecutive_failures": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "last_probed_at": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "last_reason": {
                  "type": [
                    "string",
                    "null"
                  ]
                },
                "neutral_streak": {
                  "type": "integer"
                },
                "p50_latency_ms": {
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "p95_latency_ms": {
                  "type": [
                    "number",
                    "null"
                  ]
                },
                "probe_count": {
                  "type": [
                    "integer",
                    "null"
                  ]
                },
                "score": {
                  "type": [
                    "number",
                    "null"
                  ]
                }
              },
              "type": "object"
            },
            "purchase_history": {
              "type": "string"
            },
            "reasons": {
              "description": "why, in plain words",
              "items": {
                "type": "string"
              },
              "type": "array"
            },
            "rule": {
              "type": "string"
            },
            "self_referential": {
              "description": "true when nohumans.directory operates this endpoint (by host or by the payTo its live challenge names): the verdict is then not an independent check and is never better than caution",
              "type": "boolean"
            },
            "status": {
              "description": "verified, unverified or failing",
              "type": "string"
            },
            "verdict": {
              "description": "pay, caution or avoid",
              "enum": [
                "pay",
                "caution",
                "avoid"
              ],
              "type": "string"
            },
            "verification": {
              "description": "x402 WG draft verifier object; our verdict cites it. See verification_rule",
              "type": [
                "object",
                "null"
              ]
            },
            "verification_rule": {
              "type": "string"
            },
            "verified_via": {
              "type": [
                "string",
                "null"
              ]
            }
          },
          "required": [
            "listing_id",
            "verdict",
            "reasons",
            "as_of",
            "rule"
          ],
          "type": "object"
        },
        "type": {
          "type": "string"
        }
      },
      "required": [
        "type"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}