What Agents Buy

Connect Remote server

claude mcp add --transport http whatagentsbuy https://whatagentsbuy.com/mcp

{
  "mcpServers": {
    "whatagentsbuy": {
      "url": "https://whatagentsbuy.com/mcp"
    }
  }
}

{
  "servers": {
    "whatagentsbuy": {
      "type": "http",
      "url": "https://whatagentsbuy.com/mcp"
    }
  }
}

Settings > Connectors > Add custom connector
URL: https://whatagentsbuy.com/mcp

Tools 7 found in our last check

• find_api

  USE WHEN you need an API that does something and want payable options. Searches the whole x402 market for what you describe and returns a ranked, pre-vetted shortlist, proven-accurate sellers first, then payment-safety, then price. Covers every reachable endpoint, not just ones…

• check_before_paying

  USE WHEN your agent is about to pay an x402 API and you want to know if it is safe and worth it. Returns one verdict for a URL or host in the `verdict` field (gate on that; `light` is the same decision as a colour, for display): CLEAR (nothing alarming), HOLD (pay but resolve th…

• look_up_seller

  USE WHEN you have a specific seller host and want its full track record. Returns every grade earned by actually paying it, what was quoted versus charged, whether goods arrived, its settlement volume, and its Organic Demand Score with the demand-shape read (is the volume real in…

• rank_sellers

  USE WHEN you want a ranked list of sellers across the market. by='revenue' ranks by raw USDC received (who is busy); by='real_demand' ranks by Organic Demand Score (whose money comes from many independent wallets rather than one wallet supplying almost all of it). The two disagr…

• rank_by_accuracy

  USE WHEN a category has an objective right answer (crypto-price, stock-price, fx-rate, gas-price, wallet-balance, weather) and you want the sellers we PAID ranked by how close their returned value was to a primary source that cannot be a reseller (exchange median, chain balanceO…

• market_size

  USE WHEN asked how big x402 is, whether it is growing, or what settled recently. Returns both what actually settled on Base over the last day (from chain logs, per tracked seller) and the live market pulse (24h volume and payments with day-over-day change, a 7-day series, and st…

• known_payment_traps

  USE WHEN writing payment code, or before trusting an unfamiliar seller. The field notes: each is a specific way an agent paying an API loses money or is misled, what it cost to learn, and what to do instead. (Formerly named list_traps.)

Details

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