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Free MCP Server

by mart402 Your server? Claim it
answering

Free is answering right now. Last checked 1 min ago. It exposes 6 tools.

Free read-only tools: Market402 x402 index search, operator track records, PDF price quotes.

Uptime history 6 days of history
6 days agonow
100.0%
Uptime 24h
92 of 92 checks
6
Tools
read from the server
667 ms
Response time
average over 24h
open, no key
Access
streamable-http

Nothing serious here today

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

Three servers free · no card

Connect this server

Endpoint below is the one we actually reach during checks — not the one copied from a README. Last verified 1 min ago.

run in your terminal
claude mcp add free --transport http https://mart402.com/mcp/free
Settings → Connectors → Add custom connector, then paste this address
https://mart402.com/mcp/free
~/.codex/config.toml
[mcp_servers.free]
url = "https://mart402.com/mcp/free"
.cursor/mcp.json
{
  "mcpServers": {
    "free": {
      "url": "https://mart402.com/mcp/free"
    }
  }
}
.vscode/mcp.json
{
  "servers": {
    "free": {
      "type": "http",
      "url": "https://mart402.com/mcp/free"
    }
  }
}

Available tools 6

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

catalog
get_catalog
Mart402 product catalog: all products, prices, payment config, error codes, rate limits. Free.
operator
operator_history
Free 12-week measured score history for any x402 operator from the Market402 index (weekly series, trend, volatility, badge). Check a seller's record before your agent pays an unfamiliar endpoint.
portrait
portrait_precheck
FREE analyzability check before paying for portrait_analysis: is a face detectable, is the photo quality good enough (clipping/color cast)? Deterministic, no LLM. 10/hour/IP.
quote
quote_parse
Free quote for PDF parsing: page count, route (text/scan-OCR) and the exact final price, before any payment. Use the returned quote_id with parse_document (on /mcp or /mcp/docs).
sample
get_sample
Free recorded sample response for a paid product (from real production runs, marked sample:true) - see the exact response shape before paying anything. Available: document-pipeline, enrich, extract, jp-bonus-net, jp-business-days, jp-company, jp-consumption-tax, jp-crypto-tax, jp-dependent-threshold, jp-mortgage, jp-overtime-wage, jp-payroll-net, jp-payroll-suite, jp-payslip-audit, jp-retirement-tax, jp-social-insurance, meal-vision, ocr, parse, pdf-info, pdf-merge, pdf-pages, portrait-analysis, report-pack, structured, style-profile, style-report, verify.
x402
search_x402_services
Search the Market402 verified index of the whole x402 economy by capability (e.g. 'ocr', 'market-data'). Every result is a real, probed resource with a measured 402 Score. Free.

Endpoints

URLTransportStateLatencyChecked
https://mart402.com/mcp/free streamable-http answering 447 ms 1 min ago

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Free — questions

Answers built from our own checks of this server.

What can Free do?
It exposes 6 tools, read directly from the server on our last check. Among them: get_catalog, get_sample, operator_history, portrait_precheck, quote_parse, search_x402_services. 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 Free working right now?
We send a real MCP handshake every 15 minutes. Over the last 24 hours 92 of 92 checks got a reply (100.0%), average response time 667 ms. The bar chart above shows every period we have measured.
How do I connect Free?
Copy the ready config from this page. We generate it for Claude Code, Claude Desktop, Codex, Cursor and VS Code, each in the form that client actually reads. It is a remote server, so there is nothing to install — the client connects to the address.
Does Free need an API key?
No. Free completed a full MCP handshake with us as an anonymous client and listed its tools without asking for anything. All 6 of them are readable on this page. This is what we observed, not what the docs claim.
How fast is Free?
It answers our handshake in 667 ms on average, which is faster than 17% 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.