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x402serps MCP server

Which MCP servers are x402serps's own, from the official registry and from asking its own domain, whether they answer, and what they offer. A program checked each of these, nobody copied them from a product page.

read 2026-11-03

← Back to x402serps

Whose server it is
  • Registry namecom.x402serps/searchverified in the MCP registry

The registry name sits under x402serps.com. The registry only lets a publisher use that namespace after proving control of the domain through DNS or HTTP.

When we asked itchecked 2026-11-03
  • Stateanswerschecked 2026-11-03
  • Tools12
  • Server calls itselfx402serps
  • Server version1.1.0
  • Protocol version2025-06-18

On 2026-11-03 the server answered initialize and tools/list without a sign-in. First answer in 144 ms.

Should an agent connect itNot proven either way yet
  • Its tools do every use case we checked: search Google web and news results from an agent; extract clean markdown text from public web pages; run deep research briefs with cited page excerpts.
  • Checked on 2 of the 7 days it takes to judge reliability.

Once connected

  • For "search Google web and news results from an agent", the likely first call is web_search.
  • For "extract clean markdown text from public web pages", the likely first call is extract.
  • For "run deep research briefs with cited page excerpts", the likely first call is deep_research.
  • Parameters are untyped or undescribed in 14 of 19 tools: check arguments before calling.

Said by rules from the measurements above. The likely first call is a model's pick from the tool list; read its description before relying on it.

Measured dailydaily checks: 2, the first on 2026-11-03
  • INITE MCP scoreafter a weeka score needs 7 daily checks: 2 so far
  • What an agent can do with it3 of 3 use cases
  • Answeredmeasuring2 of the 7 daily checks it takes to print a share
  • Median first answer360 ms
  • Space in an agent's context≈ 2,594 tokensthe definitions of all its tools (19), which an agent carries on every turn
  • Tool definitionsB · 88 of 100
  • Typed results0 of 19 toolsdeclared outputSchema: results come typed, read once
  • Parameters without a description: in 14 of 19

What an agent can do with it

  • can do · search Google web and news results from an agent
  • can do · extract clean markdown text from public web pages
  • can do · run deep research briefs with cited page excerpts

Each of the product's use cases, put to Jev against this server's tool list: can an agent do it with these tools?

Worth a look

None of the five warning signs in these definitions.

A program checks the server once a day: initialize and tools/list, no model. Tokens are the definitions' length at about four characters a token. The grade averages six checks of every tool's name, description, schema and annotations; it says how well the tools are described, not whether they work. The score weighs what was measured and nothing else: answering (25%), doing the product's job (25%), definitions (20%), context (10%), use (10%) and how readily a client connects (10%). A part that was not measured is left out, and a hidden instruction caps the score at 40. The state of vendors' MCP servers: method and numbers →

Tools it offers12 tools · read 2026-11-03
  • web_search

    Paid web search via x402 ($0.01 USDC on base). Pass an x402 payment in the X-PAYMENT header of the MCP request, or send header X-Trial: 1 for free trial calls (25 per network).

  • news_search

    Paid Google News search via x402 ($0.01 USDC on base). Pass an x402 payment in the X-PAYMENT header.

  • extract

    Fetch a public URL and return clean markdown via x402 ($0.003 USDC on base). Pass an x402 payment in the X-PAYMENT header.

  • search_extract

    Google web search plus clean markdown of the top N results (1-5) via x402 ($0.02 USDC on base). Pass an x402 payment in the X-PAYMENT header.

  • batch_search

    Up to 25 Google web searches in one call via x402 ($0.15 USDC on base). Pass an x402 payment in the X-PAYMENT header.

  • image_search

    Google Images results (title, page url, imageUrl, thumbnail, size) for one query, up to 20. Paid via x402 ($0.01 USDC on Base or Solana); send X-PAYMENT, or X-Trial: 1 for free trial calls.

  • places_search

    Google Maps/Places results (name, address, rating, phone, website, lat/lng) for one query, up to 20. Paid via x402 ($0.01 USDC on Base or Solana); send X-PAYMENT, or X-Trial: 1 for free trial calls.

  • shopping_search

    Google Shopping product results (title, price, store, rating, url, image) for one query, up to 20. Paid via x402 ($0.01 USDC on Base or Solana); send X-PAYMENT, or X-Trial: 1 for free trial calls.

  • scholar_search

    Google Scholar results (title, url, snippet, publication, year, citations, pdf) for one query, up to 20. Paid via x402 ($0.01 USDC on Base or Solana); send X-PAYMENT, or X-Trial: 1 for free trial calls.

  • video_search

    Google Videos results (title, url, channel, duration, date, thumbnail) for one query, up to 20. Paid via x402 ($0.01 USDC on Base or Solana); send X-PAYMENT, or X-Trial: 1 for free trial calls.

  • deep_research

    Search Google, read the top 3-8 pages in parallel and return a concise cited brief with source excerpts. Paid via x402 ($0.08 USDC on Base or Solana); send X-PAYMENT. Not in the free trial.

  • ai_visibility_check

    For 1-10 keywords, report where a brand/domain ranks on Google plus AI Overview, answer box, People Also Ask and knowledge graph presence, top competitors and a 0-100 score. Paid via x402 ($0.10 USDC flat on Base or Solana); send…

How to connect

Add the server to your MCP client config. Claude Desktop, Cursor and most other clients read this shape:

{
  "mcpServers": {
    "search": {
      "type": "http",
      "url": "https://x402serps.com/api/mcp"
    }
  }
}

Add it

Claude Code, in a terminal

claude mcp add --transport http x402serps https://x402serps.com/api/mcp

Add to CursorAdd to VS Code

claude.ai, ChatGPT and other clients: add https://x402serps.com/api/mcp as a custom connector in the settings.

OpenAPI spec

14 paths, read 2026-11-03. Open the spec ↗

Each line is something a program found when it went looking: the registry entry, the server's own answer, a spec that parses. A missing line means we did not find it, not that it does not exist.