`x402_seller_lookup`

Pack: factline-x402-health · Connect: https://pipeworx.io/mcp (see Connect below for a single-pack URL)

No MCP client? Call it directly: GET https://gateway.pipeworx.io/v1/tools/x402_seller_lookup for the schema, then POST the same URL with its arguments for the data.

Look up ONE x402 seller by origin, host or URL (e.g. “api.exa.ai” or “https://stableenrich.dev”) and get Factline’s nightly probe history (per-day ok/latency), uptime, listed payTo wallets, and a health reading. Check this before paying a seller. A seller Factline does not track returns found:false (“not tracked yet”), which means UNKNOWN, not healthy and not unhealthy. Returns source and data_as_of (date of the latest probe; null with retrieved_at when the seller is not tracked).

Parameters

Name	Type	Required	Description
`origin`	string	yes	Seller origin, host or any URL on the seller (e.g. “api.exa.ai”)

Example call

Arguments

{
  "origin": "api.exa.ai"
}

curl

curl -X POST https://gateway.pipeworx.io/factline-x402-health/mcp \
  -H 'Content-Type: application/json' \
  -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"x402_seller_lookup","arguments":{"origin":"api.exa.ai"}}}'

TypeScript (@pipeworx/sdk)

import { Pipeworx } from '@pipeworx/sdk';
const pipeworx = new Pipeworx();

const result = await pipeworx.call('x402_seller_lookup', {
  "origin": "api.exa.ai"
});

Response shape

Field	Type	Description
`source`	string
`cite_as`	string
`cadence`	string
`data_as_of`	string
`query`	string
`host`	string
`found`	boolean
`origin`	string
`name`	string
`health`	string
`health_basis`	string
`warnings`	array
`uptime`	object
`probes`	array
`listings`	number
`payers_30d`	number
`real_payers_30d`	null
`calls_30d`	number
`catalogues`	array
`networks`	array
`tags`	array
`cheapest_usd`	number
`listed_since`	string
`last_seen`	string
`wallets`	array
`claimed_by_seller`	boolean
`verified_wallets`	array

Full JSON Schema

{
  "type": "object",
  "properties": {
    "source": {
      "type": "string"
    },
    "cite_as": {
      "type": "string"
    },
    "cadence": {
      "type": "string"
    },
    "data_as_of": {
      "type": "string"
    },
    "query": {
      "type": "string"
    },
    "host": {
      "type": "string"
    },
    "found": {
      "type": "boolean"
    },
    "origin": {
      "type": "string"
    },
    "name": {
      "type": "string"
    },
    "health": {
      "type": "string"
    },
    "health_basis": {
      "type": "string"
    },
    "warnings": {
      "type": "array",
      "items": {}
    },
    "uptime": {
      "type": "object",
      "properties": {
        "valid_402_rate": {
          "type": "number"
        },
        "median_ms": {
          "type": "number"
        },
        "probe_days": {
          "type": "number"
        },
        "checked": {
          "type": "string"
        }
      },
      "additionalProperties": true
    },
    "probes": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "day": {
            "type": "string"
          },
          "ok": {
            "type": "number"
          },
          "ms": {
            "type": "number"
          }
        },
        "additionalProperties": true
      }
    },
    "listings": {
      "type": "number"
    },
    "payers_30d": {
      "type": "number"
    },
    "real_payers_30d": {
      "type": "null"
    },
    "calls_30d": {
      "type": "number"
    },
    "catalogues": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "networks": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "tags": {
      "type": "array",
      "items": {
        "type": "string"
      }
    },
    "cheapest_usd": {
      "type": "number"
    },
    "listed_since": {
      "type": "string"
    },
    "last_seen": {
      "type": "string"
    },
    "wallets": {
      "type": "array",
      "items": {
        "type": "object",
        "properties": {
          "network": {
            "type": "string"
          },
          "address": {
            "type": "string"
          },
          "catalogues": {
            "type": "array",
            "items": {
              "type": "string"
            }
          },
          "first_seen": {
            "type": "string"
          },
          "last_seen": {
            "type": "string"
          },
          "also_listed_by": {
            "type": "number"
          },
          "verified_by_seller": {
            "type": "boolean"
          }
        },
        "additionalProperties": true
      }
    },
    "claimed_by_seller": {
      "type": "boolean"
    },
    "verified_wallets": {
      "type": "array",
      "items": {}
    }
  },
  "additionalProperties": true
}

Connect

Add this to your MCP client config — every tool in the catalog, including this one — or use one-click install buttons:

{
  "mcpServers": {
    "pipeworx": {
      "url": "https://pipeworx.io/mcp"
    }
  }
}

Connect to just the factline-x402-health pack

{
  "mcpServers": {
    "factline-x402-health": {
      "url": "https://gateway.pipeworx.io/factline-x402-health/mcp"
    }
  }
}

See Getting Started for client-specific install steps.

x402_seller_lookup