io.github.foxxx009Published by GitHub account foxxx009v1.1.0Updated Oct 24, 2026
Pay-per-call research tools for AI agents, paid via x402 USDC. Remote MCP, one free tool.
A remote MCP server offering pay-per-call web, domain, GitHub, crypto, stock, weather and public-data research tools, settled in USDC on Base via x402.
Web executable via Streamable HTTP. Remote servers run from the web runtime once configured in a workspace.
Paste this prompt into Claude Code, Codex, Cursor or another agent — or into SourceWeft chat. The agent reads this server's install guide, shows you its publisher, endpoint and sign-in, and adds it to your client once you agree. Keys never go into a command.
Read https://sourceweft.com/mcp/io.github.foxxx009%2Fx402-tools-mcp/install.md and connect the MCP server it describes to my client. Before changing any config, show me its publisher, endpoint and sign-in method and wait for my OK. Never put an API key in a command or in a file I would commit; ask me where it should come from.Add this to your client's mcpServers config.
{
"mcpServers": {
"x402-tools": {
"type": "http",
"url": "https://fitze-x402-seller.app.workbuddy.host/mcp"
}
}
}An MCP server that gives any AI agent six research and data tools, paid per call in USDC on Base through x402.
No API keys. No subscription. No monthly minimum. You pay a cent or two when your agent actually calls a tool.
Agent sandboxes are frequently firewalled from the open web, and the usual
workaround — an API-key-gated scraping service — means a subscription, an
account, and a monthly floor you pay whether or not you use it. x402 removes
all three: the server answers 402 Payment Required, the client signs a USDC
transfer authorisation, and the call proceeds. That is the whole handshake.
1. Fund a wallet. Any Base wallet with a few dollars of USDC. It needs no ETH — gas is paid by the settlement facilitator.
2. Export the key.
3. Register the server with your MCP client:
Or run it locally:
X402_BASE_URL lets you point the same server at your own x402 seller.
Only two things: the tool arguments, and an EIP-3009 signature authorising a USDC transfer for the quoted amount. The private key never leaves the process. Signing is local; settlement happens on Base.
X-PAYMENT; the 402 response always
states the exact amount before you pay anything.repo_diligence and web_brief are priced higher because they do real
multi-request work. Call them deliberately.Prefer not to run anything locally? The same service is exposed as a remote Streamable HTTP MCP endpoint:
Add it to any MCP client (Claude Desktop, Cursor, etc.) as a remote server
URL. free_url_check runs without payment; paid tools answer HTTP 402 with
x402 payment requirements and settle in USDC on Base when an x402-capable
client retries. Listed in the official MCP Registry as
io.github.foxxx009/x402-tools-mcp.
MIT
Source: README.md at commit c7be9bc
$0.005 per call — Fetch a public URL and return status, final URL, title, cleaned text (scripts/styles stripped, truncated) and the top 20 absolute links. Useful when an agent itself cannot reach the open web.
urlrequiredmaxChars$0.005 per call — Domain due-diligence bundle: RDAP registrar + creation/expiry dates + status, DNS records (A/MX/NS/TXT), and Certificate Transparency history via crt.sh. Use to vet a domain before trusting or linking to it.
domainrequired$0.005 per call — GitHub repo snapshot: stars, forks, open-issue count, watchers, primary language, SPDX license, created/pushed dates and latest release tag. Use to triage a repo before contributing or depending on it.
reporequired$0.005 per call — Base ERC-20 due-diligence: on-chain name, symbol, decimals and total supply via eth_call. Use to sanity-check a Base token address before interacting with it.
addressrequired$0.03 per call — Deep GitHub repo due-diligence: base snapshot + last 5 commits (author/date/message), contributor count, archived flag, security-policy presence, latest release cadence and open/closed issue ratio. Use to decide whether to depend on or contribute to a repo before trusting it.
reporequired$0.02 per call — Multi-source research brief from 1–3 URLs. For each source extract title, meta description, key sentences (numbered/quoted/date-or-figure-bearing) and outbound links. Returns a structured, citable brief other agents can consume without their own web access.
urlsrequiredmaxSentences$0.01 per call — Real-time stock quotes: price, change, change percent, open, high, low, volume, turnover, currency and exchange timestamp. Covers A-shares (sh600000, sz000001), Hong Kong (hk00700) and US (usAAPL or plain AAPL). Accepts several symbols at once separated by commas. No API key needed, sourced from Tencent qt.gtimg.cn with a Nasdaq fallback for US tickers.
symbolsFREE — FREE: check whether a public URL is reachable and what it is. Returns HTTP status, final URL after redirects, content type and page title. Use web_fetch (paid) for full text and links.
urlrequired$0.002 per call — Recent earthquakes from the USGS GeoJSON feed (no API key). Returns magnitude, place, time, depth and coordinates for each event. Params: period = hour|day|week (default day); minmag = minimum magnitude (default 0); limit = max events (default 20).
limitminmagperiod$0.002 per call — Current weather from Open-Meteo (no API key, no signup). Given lat/lon returns temperature (C), apparent temperature, humidity, wind speed, precipitation and a WMO weather code. Params: lat, lon (required).
latrequiredlonrequired$0.002 per call — Live fiat exchange rates (open.er-api.com, no key, ~200 currencies). Params: base = ISO code (default USD); to = comma list or single code (default EUR,GBP,JPY,CNY). Returns rates and the last-update timestamp.
tobase$0.02 per call — SEC EDGAR full-text search (efts.sec.gov, no key). Find filings by term. Params: q = search term (required); forms = comma list e.g. 10-K,8-K; limit = max hits (default 10). Returns filing date, company, CIK and accession number for each hit.
qrequiredformslimit$0.02 per call — FDA recall enforcement reports from open.fda.gov (no key, rate-limited). Params: type = food|drug|device (default food); reason = free-text filter; limit = max records (default 10). Returns recall reason, status, date and product description for each match.
typelimitreason90% of the applicable checks met
How complete this listing is, computed from the registry entry, the endpoint and public sources. Not a rating of the server and not a statement that it is safe or working today: reachability is a dated check, and no installs or reviews go into the score.
Declare a license in the repository or the registry entry.
export X402_PRIVATE_KEY=0x<private key of that wallet>{ "mcpServers": { "x402-tools": { "command": "npx", "args": ["-y", "x402-tools-mcp"], "env": { "X402_PRIVATE_KEY": "0x..." } } }}git clone https://github.com/foxxx009/x402-tools-mcpcd x402-tools-mcp && npm installX402_PRIVATE_KEY=0x... node index.jshttps://fitze-x402-seller.app.workbuddy.host/mcp