Harpd Agent Data MCP Server

by harpd Your server? Claim it

answering

Harpd Agent Data is answering right now. Last checked 11 min ago. It exposes 7 tools.

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

Uptime history 2 hours of history

2 hours agonow

100.0%

Uptime 24h

3 of 3 checks

Tools

read from the server

756 ms

Response time

average over 24h

open, no key

Access

streamable-http

Nothing serious here today

Today is the operative word: we check Harpd Agent Data every 15 minutes and re-read its code on every release. Watch it and you find out the day that stops being true.

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 11 min ago.

Claude Code Claude Desktop Codex Cursor VS Code

run in your terminal

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

~/Library/Application Support/Claude/claude_desktop_config.json

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

~/.codex/config.toml

[mcp_servers.agent-data]
url = "https://api.harpd.com/mcp"

.cursor/mcp.json

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

.vscode/mcp.json

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

Available tools 7

Read directly from the server with tools/list, grouped by what they act on. If a tool disappears, we record the date.

compare

compare_products

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 attached; sign the payment and retry. Canonical: https://harpd.com/compare/

historical

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, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/rank/

optimize

optimize_model

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: 0.05 USDC per call, settled over x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/llm-cost-optimization/

products

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/

rank

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/

research

research_products

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 the payment and retry. Canonical: https://harpd.com/research/

verify

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 x402 on Base. This tool returns HTTP 402 with x402 payment requirements when no payment is attached; sign the payment and retry. Canonical: https://harpd.com/developers/agents/

Endpoints

URL	Transport	State	Latency	Checked
https://api.harpd.com/mcp	streamable-http	answering	771 ms	11 min ago

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Harpd Agent Data — questions

Answers built from our own checks of this server.

What can Harpd Agent Data do?

It exposes 7 tools, read directly from the server on our last check. Among them: compare_products, get_historical_data, get_rank, optimize_model, research_products, search_products and 1 more. The full list with descriptions is on this page — we take it from the server itself via tools/list, not from a README. How MCP servers expose tools in the first place →

Is Harpd Agent Data working right now?

We send a real MCP handshake every 15 minutes. Over the last 24 hours 3 of 3 checks got a reply (100.0%), average response time 756 ms. The bar chart above shows every period we have measured.

How do I connect Harpd Agent Data?

Copy the ready config from this page — we generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each with the file path that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.

Does Harpd Agent Data need an API key?

No. Harpd Agent Data completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 7 of them are readable on this page. This is what we observed, not what the docs claim.

How fast is Harpd Agent Data?

It answers our handshake in 756 ms on average, which is faster than 15% of all working MCP servers we measure. That is on the slow side — worth knowing if the tool sits inside an interactive loop. The comparison comes from our own checks across the whole registry, every 15 minutes.