ToolAssay

x402engine — Neural web search with highlighted snippets — find articles, news,

x402engine — Neural web search with highlighted snippets — find articles, news, research, and any web content

Answeringour last check, 2026-10-18
1 of 1checks answered this week
337 msmedian answer time
$0.01listed price per call
$0.01price it asked us

Paid test badge: not yet. The checks above are free: we call the tool without paying and read the payment request it sends back. The Verified badge needs paid calls whose answers match the promised output, and nobody can buy a badge.

Endpoint

POST https://x402engine.app/api/search/web

CategorySearch and research
Provider hostx402engine.app
Networkseip155:4326, eip155:8453, solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp
Payment schemesexact
Self-reported calls, 30 days5 from 4 payers (the provider's figure, not ours)

Our checks, last 30 days

DayResultHTTPAskedTime
2026-10-18 valid payment request 402$0.01 337 ms

Example input (from the provider)

{
  "body": {
    "category": "news",
    "includeDomains": [
      "arxiv.org",
      "github.com"
    ],
    "includeText": false,
    "numResults": 10,
    "query": "latest ethereum news"
  },
  "bodyType": "json",
  "method": "POST",
  "type": "http"
}

Promised output schema (from the provider)

{
  "$schema": "https://json-schema.org/draft/2020-12/schema",
  "properties": {
    "input": {
      "additionalProperties": false,
      "properties": {
        "body": {
          "additionalProperties": false,
          "properties": {
            "category": {
              "description": "Content category filter (news, research paper, company, tweet, github, pdf)",
              "example": "news",
              "type": "string"
            },
            "includeDomains": {
              "description": "Only include results from these domains",
              "example": [
                "arxiv.org",
                "github.com"
              ],
              "items": {
                "example": "arxiv.org",
                "type": "string"
              },
              "type": "array"
            },
            "includeText": {
              "default": false,
              "description": "Include full page text in results",
              "type": "boolean"
            },
            "numResults": {
              "default": 10,
              "description": "Number of results (1-30)",
              "example": 10,
              "type": "number"
            },
            "query": {
              "description": "Search query",
              "example": "latest ethereum news",
              "type": "string"
            }
          },
          "required": [
            "query"
          ],
          "type": "object"
        },
        "bodyType": {
          "enum": [
            "json",
            "form-data",
            "text"
          ],
          "type": "string"
        },
        "method": {
          "enum": [
            "POST"
          ],
          "type": "string"
        },
        "type": {
          "const": "http",
          "type": "string"
        }
      },
      "required": [
        "type",
        "bodyType",
        "body",
        "method"
      ],
      "type": "object"
    }
  },
  "required": [
    "input"
  ],
  "type": "object"
}

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