MCP.Market

SiteCheck MCP server

online · 100% uptime
by bck-stack·io.github.bck-stack/sitecheck·v1.8.5
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225 pay-per-call agent tools: Polymarket, chain reads, DeFi, web, SEC, KYB, geo, dev, AI. x402

B79/100grade B
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Safety scan
B79/100

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Adoption
Growing

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If you have run it, two minutes of your experience saves the next person an afternoon.

SiteCheck tools

Tool list not cached yet. `describe` through the gateway fetches it live.

Not scanned yet. New listings are scanned within a day or two of arriving.

How SiteCheck compares

Against every graded AI and agents MCP server, from our own scans and uptime checks. Updated after each scan run.

Safety score
79/100
higher than 58% of 4,460 AI and agents servers
Uptime
100%
of our recent checks; the typical remote AI and agents server answers 100%
Response time
78 ms
faster than 91% of 2,331 AI and agents servers

Release history: 8 versions in the registry since 2026-10-08, latest 2026-10-16, typically several a day.

Install SiteCheck in Claude Code, Cursor or VS Code

claude mcp add --transport http sitecheck https://api.sitecheck-api.workers.dev/mcp?ref=registry
Add to Cursor

What the publisher says

From the SiteCheck repository's README, as published. We do not edit it. Read it on GitHub

SiteCheck: pay-per-call tools for AI agents (x402 on Base, Solana and Arc)

Live: https://api.sitecheck-api.workers.dev · listed on x402scan, the official MCP Registry (io.github.bck-stack/sitecheck), Smithery and mcpservers.org · MCP: /mcp · discovery: /.well-known/x402, /openapi.json

SiteCheck is a small API that AI agents can use without an account or API key: 29 pay-per-call tools in all. Besides its AI and web tools (including a web page to Markdown reader), it sells PDF to text, translation, tech stack detection, sitemap URLs, exchange rates, e-mail, domain and Solana token and wallet data, business and compliance data (EU VAT, IBAN, LEI, US recalls, OSHA/EPA enforcement, UK insolvency notices), prediction-market data and unsigned trade transactions powered by Panta. Every call is paid per request in USDC with the x402 protocol, on Base, Solana or Arc (Circle's L1), whichever the buyer holds USDC on. Call it, get a 402 Payment Required listing the price on each network, sign the payment and get the result. It runs on Cloudflare Workers and Workers AI.

Shortened. The full README is on GitHub.

Nothing above is checked by us. What we check is on the safety report.

SiteCheck: common questions

Is SiteCheck MCP server safe?
Mostly: it is graded B (79/100). Read the SiteCheck safety report
How do I install SiteCheck?
It runs remotely at api.sitecheck-api.workers.dev. Add it to Claude Code, Cursor, VS Code or Claude Desktop with the snippets above, or call it through the mcp.market gateway without installing anything.
Does SiteCheck need an API key?
Not as far as the registry entry and our scan can tell: no credentials are declared or required.
Is SiteCheck maintained?
The last commit was 26 days ago (2026-10-09). The latest release is v1.8.5.
Is SiteCheck up?
100% of our last 28 checks got an answer. We check remote servers about four times a day.
What can I use instead of SiteCheck?
Servers from other publishers that do the same job: Ausca MCP server, agent-device MCP server and You.com Web Access & AI MCP server.
How does SiteCheck compare with other AI and agents MCP servers?
safety score 79/100 (higher than 58% of 4,460 AI and agents servers); uptime 100% (of our recent checks; the typical remote AI and agents server answers 100%); response time 78 ms (faster than 91% of 2,331 AI and agents servers). Full comparison.

Alternatives to SiteCheck

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