All servers · Agent payments (x402) · Payments & accounting

Harpd Agent Data

com.harpd/agent-data · v1.0.1

Measured by MCP Station

Description written by the publisher, not verified

Live rankings and pricing for 10,000+ AI products and LLMs. Free tier; paid data via x402.

Connect

claude mcp add --transport http agent-data https://api.harpd.com/mcp

{
  "mcpServers": {
    "agent-data": {
      "url": "https://api.harpd.com/mcp"
    }
  }
}

Tools as reported by the server

• get_historical_data
  The rank history of one AI product over 3, 6 or 12 months: position over time, rank movement, best and worst position, and the archived period results. This is the one thing a single page view of the board cannot tell an agent — whether a position is rising or falling. PAID: 0.05 USDC per call, sett
• get_rank
  Free Harpd Rank board for any scope and category, in the unified agent envelope. FREE: no payment, no API key, no account required. Canonical: https://harpd.com/rank/
• harpd_compare
  Head-to-head comparison of 2–8 AI products: category, published rank, list pricing where the product is a priced model, and the material differences between them. PAID: 0.01 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attache
• harpd_optimize
  Given a task and the model currently running it, returns cheaper candidate models that still clear the task quality floor, with per-call and projected monthly savings, the performance trade-off, a confidence value and the evidence behind every number. PAID: 0.01 USDC per call, settled over x402 on B
• harpd_research
  A structured research answer over the Harpd catalog: matching products, category distribution, price bands, evidence per claim and the sources behind them. PAID: 0.05 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign
• search_products
  Free keyword search over the published Harpd AI product catalog, with category filters and stable machine-readable results. FREE: no payment, no API key, no account required. Canonical: https://harpd.com/products/
• verify_agent_payment
  A deliberately trivial paid product that exists so an agent can prove its whole x402 payment path — 402 challenge, signing, settlement, receipt — before it spends anything on data. Costs $0.01 and returns the request it received plus the settlement receipt. PAID: 0.01 USDC per call, settled over x40

JSON · Text for agents · Registry updated 2026-09-18