Web Search

Interactive Bitcoin 4-year halving cycle chart on a polar disc. Live price, 200W MA, Mayer Multiple, RSI, MACD, Pi Cycle and optional paid cycle projections.

SearchLiveeip155:8453Exactvia cdp
SearchWebTavilyReseller
Calls · 30d
5↓ 22%
This endpoint's own trailing-30-day call count, as published by the upstream catalog and snapshotted daily. 30 snapshots so far.
$0.51
Verified settled volume
30 settlements proven x402 by their on-chain EIP-3009 marker.
$0.030
Listed price
As published in the catalog. Always read the live 402 before paying.
4
Calls · 30d
Upstream's own call count for this endpoint, not ours.
3
Unique payers · 30d
Last called 2026-09-11 01:26Z
Upstream on-chain volume
Reported by the source catalog.
Paid to
0x9862ca83b72aB95521F457aFf6e6EFb03d8164C3

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.

0.03USDC≈ $0.03 USD
on Base · exact scheme

Pay 0.03 USDC on Base to 0x9862…164C3. The signed payment is good for 5 minutes.

USD Coin contract
0x8335…02913
Payment window
5 minutes
As published
30000 smallest units
The catalog’s raw entry
[
  {
    "asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
    "extra": {
      "name": "USD Coin",
      "version": "2"
    },
    "payTo": "0x9862ca83b72aB95521F457aFf6e6EFb03d8164C3",
    "amount": "30000",
    "scheme": "exact",
    "network": "eip155:8453",
    "maxTimeoutSeconds": 300
  }
]

Extensions

{
  "bazaar": {
    "info": {
      "input": {
        "type": "http",
        "method": "GET",
        "queryParams": {
          "q": "who is Leo Messi",
          "max": "5",
          "depth": "basic"
        }
      },
      "output": {
        "type": "json",
        "example": {
          "count": 1,
          "query": "who is Leo Messi",
          "answer": "Lionel Messi is an Argentine professional footballer widely regarded as one of the greatest players of all time.",
          "results": [
            {
              "url": "https://en.wikipedia.org/wiki/Lionel_Messi",
              "score": 0.8135,
              "title": "Lionel Messi - Wikipedia",
              "snippet": "Lionel Andrés Messi is an Argentine professional footballer who plays as a forward for and captains both Major League Soccer club Inter Miami and the Argentina national team."
            }
          ],
          "responseTimeMs": 1340
        }
      }
    },
    "schema": {
      "type": "object",
      "$schema": "https://json-schema.org/draft/2020-12/schema",
      "required": [
        "input"
      ],
      "properties": {
        "input": {
          "type": "object",
          "required": [
            "type",
            "method"
          ],
          "properties": {
            "type": {
              "type": "string",
              "const": "http"
            },
            "method": {
              "enum": [
                "GET"
              ],
              "type": "string"
            },
            "queryParams": {
              "type": "object",
              "required": [
                "q"
              ],
              "properties": {
                "q": {
                  "type": "string",
                  "examples": [
                    "who is Leo Messi",
                    "latest news on EU AI Act enforcement"
                  ],
                  "maxLength": 400,
                  "minLength": 1,
                  "description": "Search query. Required, 1-400 characters."
                },
                "max": {
                  "type": "string",
                  "default": "5",
                  "pattern": "^\\d{1,2}$",
                  "examples": [
                    "5",
                    "10"
                  ],
                  "description": "Maximum number of results to return. Integer 1-10. Default: 5."
                },
                "depth": {
                  "enum": [
                    "basic",
                    "advanced"
                  ],
                  "type": "string",
                  "default": "basic",
                  "examples": [
                    "basic",
                    "advanced"
                  ],
                  "description": "Search depth. \"advanced\" costs Tavily more upstream but is not priced differently to the buyer yet. Default: basic."
                },
                "exclude_domains": {
                  "type": "string",
                  "examples": [
                    "pinterest.com"
                  ],
                  "description": "Optional comma-separated domains to exclude from results."
                },
                "include_domains": {
                  "type": "string",
                  "examples": [
                    "wikipedia.org",
                    "nytimes.com,bbc.com"
                  ],
                  "description": "Optional comma-separated domains to restrict results to, e.g. wikipedia.org,bbc.com."
                }
              },
              "additionalProperties": false
            }
          },
          "additionalProperties": false
        },
        "output": {
          "type": "object",
          "required": [
            "type"
          ],
          "properties": {
            "type": {
              "type": "string"
            },
            "example": {
              "type": "object",
              "required": [
                "query",
                "count",
                "results"
              ],
              "properties": {
                "count": {
                  "type": "integer",
                  "description": "Number of results returned"
                },
                "query": {
                  "type": "string",
                  "description": "Query as sent to Tavily"
                },
                "answer": {
                  "type": [
                    "string",
                    "null"
                  ],
                  "description": "Tavily's short synthesized answer, null if unavailable"
                },
                "results": {
                  "type": "array",
                  "items": {
                    "type": "object",
                    "required": [
                      "title",
                      "url",
                      "snippet",
                      "score"
                    ],
                    "properties": {
                      "url": {
                        "type": "string",
                        "description": "Source URL"
                      },
                      "score": {
                        "type": "number",
                        "description": "Tavily relevance score for this result (higher = more relevant)"
                      },
                      "title": {
                        "type": "string",
                        "description": "Page title as indexed by Tavily"
                      },
                      "snippet": {
                        "type": "string",
                        "description": "Tavily's extracted content for this result, capped to 500 characters"
                      }
                    }
                  },
                  "description": "Ranked search results, most relevant first"
                },
                "responseTimeMs": {
                  "type": "integer",
                  "description": "Upstream Tavily response time in milliseconds"
                }
              }
            }
          }
        }
      }
    }
  }
}

Provenance

Seen in the source catalog
2026-09-11 01:26Z
Last indexed by Roundhouse
2026-09-24 10:00Z
Last enriched (probe, favicon, geo)
2026-09-23 04:15Z
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. 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 Web Search 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=Web%20Search'
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://4yearcycle.com/x402/web-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. 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.