x402serps

Name: x402serps
Price: 0.004 USDC
Availability: InStock

real-time web search results (title, url, snippet) for AI agents, one query, 10 results per $0.004 (num up to 100), with freshness/date-range filters and pagination

SearchLiveeip155:8453Exactvia cdp

https://x402serps.com/api/v1/search

x402serpsSearchWeb searchSerp

Calls · 30d

This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 5 snapshots so far.

$0.13

Verified settled volume

12 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.

Calls · 30d

Upstream's own call count for this endpoint, not ours.

Unique payers · 30d

Last called 2026-11-04 18:59Z

—

Upstream on-chain volume

Reported by the source catalog.

Paid to

0x4473c593876D7E4313Ef09Bd6D5f04cF54258B02

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.

{
  "error": "Payment required",
  "accepts": [
    {
      "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
      "extra": {
        "name": "USD Coin",
        "version": "2"
      },
      "payTo": "0x4473c593876D7E4313Ef09Bd6D5f04cF54258B02",
      "amount": "4000",
      "scheme": "exact",
      "network": "eip155:8453",
      "maxTimeoutSeconds": 300
    },
    {
      "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
      "extra": {
        "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
        "transactionVersions": [
          0,
          1
        ]
      },
      "payTo": "99V43C6cN5fxidQLNzZf2nCiC1FQ6SDUFaB3Deeq8wtm",
      "amount": "4000",
      "scheme": "exact",
      "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
      "maxTimeoutSeconds": 300
    }
  ],
  "resource": {
    "url": "https://x402serps.com/api/v1/search",
    "tags": [
      "x402serps",
      "search",
      "web search",
      "serp"
    ],
    "iconUrl": "https://x402serps.com/logo.png",
    "mimeType": "application/json",
    "description": "real-time web search results (title, url, snippet) for AI agents, one query, 10 results per $0.004 (num up to 100), with freshness/date-range filters and pagination",
    "serviceName": "x402serps"
  },
  "extensions": {
    "bazaar": {
      "info": {
        "input": {
          "type": "http",
          "method": "GET",
          "queryParams": {
            "q": "x402 payments protocol",
            "num": "10"
          }
        },
        "output": {
          "type": "json",
          "example": {
            "query": "x402 payments protocol",
            "results": [
              {
                "url": "https://www.x402.org/",
                "title": "x402 payments protocol",
                "snippet": "An open standard for internet-native payments over HTTP 402.",
                "position": 1
              }
            ],
            "provider": "primary"
          }
        }
      },
      "schema": {
        "type": "object",
        "$schema": "https://json-schema.org/draft/2020-12/schema",
        "required": [
          "input"
        ],
        "properties": {
          "input": {
            "type": "object",
            "required": [
              "type",
              "method"
            ],
            "properties": {
              "type": {
                "type": "string",
                "const": "http"
              },
              "method": {
                "enum": [
                  "GET"
                ],
                "type": "string"
              },
              "queryParams": {
                "type": "object",
                "required": [
                  "q"
                ],
                "properties": {
                  "q": {
                    "type": "string",
                    "description": "Search query"
                  },
                  "num": {
                    "type": "string",
                    "description": "Results 1-100, default 10"
                  }
                }
              }
            },
            "additionalProperties": false
          },
          "output": {
            "type": "object",
            "required": [
              "type"
            ],
            "properties": {
              "type": {
                "type": "string"
              },
              "example": {
                "type": "object",
                "properties": {
                  "query": {
                    "type": "string"
                  },
                  "results": {
                    "type": "array",
                    "items": {
                      "type": "object",
                      "properties": {
                        "url": {
                          "type": "string"
                        },
                        "title": {
                          "type": "string"
                        },
                        "snippet": {
                          "type": "string"
                        },
                        "position": {
                          "type": "number"
                        }
                      }
                    }
                  },
                  "provider": {
                    "type": "string"
                  }
                }
              }
            }
          }
        }
      }
    }
  },
  "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.

0.004USDC≈ $0.004 USD

on Base · exact scheme

Pay 0.004 USDC on Base to 0x4473…58B02. The signed payment is good for 5 minutes.

Paid to: 0x4473…58B02
USD Coin contract: 0x8335…02913
Payment window: 5 minutes
As published: 4000 smallest units

4000units

on solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp · exact scheme

That figure is in the token’s smallest units. Roundhouse does not hold this contract’s decimals, so it is shown as published rather than converted.

Paid to: 99V43C…q8wtm
Token contract: EPjFWd…TDt1v
Payment window: 5 minutes

The catalog’s raw entry

[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x4473c593876D7E4313Ef09Bd6D5f04cF54258B02",
    "amount": "4000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  },
  {
    "asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
    "extra": {
      "feePayer": "BENrLoUbndxoNMUS5JXApGMtNykLjFXXixMtpDwDR9SP",
      "transactionVersions": [
        0
      ]
    },
    "payTo": "99V43C6cN5fxidQLNzZf2nCiC1FQ6SDUFaB3Deeq8wtm",
    "amount": "4000",
    "scheme": "exact",
    "network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "body": {
          "q": "x402 payments protocol",
          "num": 10
        },
        "type": "http",
        "method": "POST",
        "bodyType": "json"
      },
      "output": {
        "type": "json",
        "example": {
          "query": "x402 payments protocol",
          "results": [
            {
              "url": "https://www.x402.org/",
              "title": "x402 payments protocol",
              "snippet": "An open standard for internet-native payments over HTTP 402.",
              "position": 1
            }
          ],
          "provider": "primary"
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method",
            "bodyType",
            "body"
          ],
          "properties": {
            "body": {
              "type": "object",
              "required": [
                "q"
              ],
              "properties": {
                "q": {
                  "type": "string",
                  "description": "Search query (alias: query)"
                },
                "gl": {
                  "type": "string",
                  "description": "Country code"
                },
                "hl": {
                  "type": "string",
                  "description": "Language code"
                },
                "num": {
                  "type": "number",
                  "description": "Results 1-100, default 10"
                },
                "tbs": {
                  "type": "string",
                  "description": "Raw tbs filter, e.g. qdr:w"
                },
                "page": {
                  "type": "number",
                  "description": "Result page 1-10 (pagination)"
                },
                "dateTo": {
                  "type": "string",
                  "description": "Custom date range end YYYY-MM-DD"
                },
                "dateFrom": {
                  "type": "string",
                  "description": "Custom date range start YYYY-MM-DD (with dateTo)"
                },
                "freshness": {
                  "type": "string",
                  "description": "Recency filter: hour, day, week, month or year"
                }
              }
            },
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "POST"
              ],
              "type": "string"
            },
            "bodyType": {
              "enum": [
                "json",
                "form-data",
                "text"
              ],
              "type": "string"
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "properties": {
                "query": {
                  "type": "string"
                },
                "results": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "properties": {
                      "url": {
                        "type": "string"
                      },
                      "title": {
                        "type": "string"
                      },
                      "snippet": {
                        "type": "string"
                      },
                      "position": {
                        "type": "number"
                      }
                    }
                  }
                },
                "provider": {
                  "type": "string"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog: 2026-11-04 18:59Z
Last indexed by Roundhouse: 2026-11-09 03:50Z
Last enriched (probe, favicon, geo): 2026-11-06 22:45Z
x402 version: 2
Max timeout: 300s
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. 5 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 x402serps 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=x402serps'
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://x402serps.com/api/v1/search, 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. Either pay over x402 (mint a personal key for $0.01 at
GET https://api.roundhouseai.io/v0/test/x402), or ask me for an organization key, which I create at
https://roundhouseai.io/dashboard/connections. If you have neither, ask before going further.

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