Ext Ops Panel
Open dashboard

SiteCheck

29 pay-per-call agent tools: web reader, PDF, tech stack, email, domain, Solana, KYB. Paid via x402

MCP server · by bck-stack

About

SiteCheck is an MCP server published by bck-stack. Marketplaces we read that list it: 1 (Official MCP Registry). The last change we recorded was on 2026-10-12. As of our marketplace pass on 2026-10-13.

What it asks for

  • Runs remotely

None of the marketplaces we read publishes its tools or the settings it asks for.

What it declares, asks for and runs, in full

Only install plugins from developers you trust. We list what marketplaces publish and do not test plugins.

Works with

  • Claude Code
  • Codex
  • Cursor
  • VS Code
  • Copilot CLI

A one-click link opens the client, which asks you to confirm before it adds the server.

From the marketplaces that list it and the MCP transport it declares, as each client documents them. We do not test plugins.

Connect

Commands and configs built only from what its marketplaces declare. We do not run them for you and do not test plugins.

As a remote MCP server

Built from what Official MCP Registry declares.

Claude CodeTerminal
claude mcp add --transport http sitecheck https://api.sitecheck-api.workers.dev/mcp
Codex~/.codex/config.toml
[mcp_servers.sitecheck]
url = "https://api.sitecheck-api.workers.dev/mcp"
Cursor~/.cursor/mcp.json
{
  "mcpServers": {
    "sitecheck": {
      "url": "https://api.sitecheck-api.workers.dev/mcp"
    }
  }
}

Where it is published

MarketplaceStatusVersionFiguresVerifiedFirst seen
Official MCP Registry (Open the registry record) Listed 1.2.0 Forks (GitHub): 0
Stars (GitHub): 1
Not marked

Each figure is the marketplace's own and is never added up across marketplaces. A marketplace that publishes no figure shows none: no number is not zero.

What changed

Nothing has moved on this plugin since we started watching it.

Similar plugins

Products whose own names, descriptions, tools and skills are closest in meaning to this one, on every marketplace we read. Closeness is ranked within this list only.

  • Stride20k x402 Data Gateway

    x402 analytics feed + 20+ pay-per-call agent tools over x402 (data, LLM, risk), no accounts.

    by Marysbrain · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • agentsvc.io

    111 pay-per-call agent tools via x402: web, crypto safety, docs, company checks, IOTA, monitoring

    by agentsvc.io · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • discovery-oracle bot.402/discovery-oracle

    Discover live agent APIs, ranked endpoints, trust, payment telemetry, and x402 surfaces.

    by 402.bot · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • callingly com.callingly/callingly

    Lets AI agents get leads on the phone: call, send SMS, and schedule callbacks for sales teams.

    by callingly.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • AgentBIT

    x402 router-proxy + 79 keyless pay-per-call tools on Base. Pay once, we run the best tool.

    by agentbit.app · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Signal Desk by LarryBuildsAI

    One-to-three-cent spend routing, lead research, token-risk, and agent-tool comparison preflights.

    by LarryLemonBot · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Scrooge Tool Mill

    8 pay-per-call agent tools: company card $0.03, page meta $0.002. USDC on Base via x402.

    by yummlees · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • Scout Packs

    B2B data for AI agents: lead lookup, deliverability scoring, domain intel. x402 $0.01-$0.03/call.

    by tigerops-win · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • AgentUtility Web Probe

    MCP server for the @agentutility web-probe cluster — pay-per-call x402 tools, no API keys, USDC on…

    by agentutility.ai · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • paygentic io.github.discover-dmc/paygentic

    Pay-per-call APIs for AI agents: web scraping, DNS/email checks, classification, trading risk.

    by discover-dmc · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Similar plugins by marketplace

The same question asked of one marketplace at a time: is there an analog of this plugin there?

Has a listing on Claude Code: claude-plugins-community (5)
  • FastMCP server for Apollo

    FastMCP server for Apollo.io — 22 tools: sequences, campaign health, mailbox warmup, enrichment,…

    by adelaidasofia · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • sfagent-tools

    AI-powered testing for Salesforce Agentforce agents. Claude reads your agent's topics, actions, and configuration, then autonomously generates and runs test conversations…

    by lucianostraga · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • greenflash

    Analyze real user-agent conversations to surface where users get blocked, optimize prompts, and understand what drives engagement or churn

    by greenflash-ai · Plugin bundle

    Listed on: Claude Code: claude-plugins-community · Describes nearly the same job

  • apollo

    Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.

    by apolloio · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • Synthflow

    Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…

    by SynthFlowAI · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Claude Code: claude-plugins-official (5)
  • zoominfo

    Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…

    by Zoominfo · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins · Describes nearly the same job

  • apollo

    Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.

    by apolloio · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • Synthflow

    Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…

    by SynthFlowAI · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • windsor-ai

    Connect Claude Code to 325+ business data sources via Windsor.ai. Query marketing, sales, CRM, ecommerce, finance, and analytics data from Google Ads, Meta, HubSpot, Salesforce…

    by windsor-ai · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude Code: claude-plugins-community · Describes nearly the same job

  • Dynatrace

    Dynatrace observability skills: DQL query patterns, application and infrastructure monitoring, log analysis, problem investigation, and incident response workflows, with the…

    by Dynatrace · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Claude: knowledge-work-plugins (5)
  • zoominfo

    Search companies and contacts, enrich leads, find lookalikes, and get AI-ranked contact recommendations. Pre-built skills chain multiple ZoomInfo tools into complete B2B sales…

    by Zoominfo · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude: knowledge-work-plugins · Describes nearly the same job

  • Synthflow

    Connects Claude Code to the Synthflow AI voice-agent platform through its hosted MCP server, with skills for reviewing calls and auditing agent prompts, plus a docs-search…

    by SynthFlowAI · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

  • Common Room

    Turn Common Room into your GTM copilot. Research accounts and contacts, prep for calls with attendee profiles and talking points, and draft personalized outreach across email…

    by Common Room · Plugin bundle

    Listed on: Claude: knowledge-work-plugins · Describes nearly the same job

  • Customer Support

    Triage tickets, draft responses, escalate issues, and build your knowledge base. Research customer context and turn resolved issues into self-service content.

    by Anthropic · Plugin bundle

    Listed on: Claude: knowledge-work-plugins · Describes nearly the same job

  • nimble

    Nimble web data toolkit — search, extract, map, crawl the web and work with structured data agents

    by Nimbleway · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Claude: knowledge-work-plugins, Claude Code: claude-plugins-community · Describes nearly the same job

Has a listing on Codex: openai-curated (openai/plugins) (5)
  • Twilio Developer Kit

    Twilio Skills provide procedural knowledge for AI coding agents — which APIs to use, in what order, and what to avoid. Covers Messaging, Voice, Verify, SendGrid, and 30+ products.

    by Twilio · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Stripe

    Develop your payments integration faster with the ability to create products, prices, and payment links directly in ChatGPT. Run your business from ChatGPT with the ability to…

    by Stripe · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Cloudflare

    Cloudflare platform plugin with curated skills for Workers, Wrangler, and Agents SDK plus the official Cloudflare API MCP server.

    by Cloudflare · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • Datadog (Preview)

    Available for US1 customers only. Analyze, investigate, and act on your Datadog telemetry directly from ChatGPT using natural language. Ask questions about your production…

    by Datadog · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

  • PostHog

    PostHog gives your AI agent direct access to your product analytics, feature flags, experiments, error tracking, surveys, logs, and LLM analytics. Ask questions about your data…

    by PostHog Inc. · Plugin bundle

    Listed on: Codex: openai-curated (openai/plugins) · Describes nearly the same job

Has a listing on Community GitHub marketplaces (5)
  • FastMCP server for Apollo

    FastMCP server for Apollo.io — 22 tools: sequences, campaign health, mailbox warmup, enrichment,…

    by adelaidasofia · MCP server

    Listed on: Official MCP Registry, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • Salt

    Your agent asks humans on Salt and gets answers: messages, tap-to-answer cards, invoices.

    by saltapp.ai · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • apollo

    Prospect, enrich leads, load outreach sequences, and query sales analytics with Apollo.io — one-click MCP server integration for Claude Code and Cowork.

    by apolloio · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Claude Code: claude-plugins-community, Community GitHub marketplaces · Describes nearly the same job

  • Dynatrace

    Dynatrace observability skills: DQL query patterns, application and infrastructure monitoring, log analysis, problem investigation, and incident response workflows, with the…

    by Dynatrace · Plugin bundle

    Listed on: Claude Code: claude-plugins-official, Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

  • FastMCP seed raise pipeline tracker — syncs from Obsidian CRM, generates meeting

    FastMCP seed raise pipeline tracker — syncs from Obsidian CRM, generates meeting prep, tracks…

    by adelaidasofia · MCP server

    Listed on: Official MCP Registry, Community GitHub marketplaces · Describes nearly the same job

Has a listing on Copilot CLI: github/awesome-copilot (5)
  • stripe

    Accept payments and grow your business. Stripe's agent plugin includes best practices, upgrade guidance, and our MCP server.

    by stripe · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • chronicle-stats

    See your local Copilot token usage by day, model, and session, and get tips to use it more efficiently.

    by Julia Muiruri · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • apify

    Helps devs extract data from any website with thousands of trusted scrapers, crawlers, and automations from Apify Store. Integrate ready-made Actors to access all popular social…

    by apify · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • datadog

    Use Datadog directly in Copilot / VS Code through a preconfigured Datadog MCP server. Query logs, metrics, traces, dashboards, and more through natural conversation.

    by datadog-labs · Plugin bundle

    Listed on: Copilot CLI: github/awesome-copilot · Describes nearly the same job

  • BLEA

    Safe BLE diagnostics, evidence workflows, and guarded automation for AI agents.

    by Nitmi · MCP server

    Listed on: Official MCP Registry, Copilot CLI: github/awesome-copilot · Describes nearly the same job

Has a listing on Copilot CLI: github/copilot-plugins (5)
  • workiq

    Query Microsoft 365 data with natural language — emails, meetings, documents, Teams messages, and more.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • microsoft-365-agents-toolkit

    Toolkit for building Microsoft 365 Copilot declarative agents — scaffolding, JSON manifest development, and capability configuration.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • workiq-productivity

    WorkIQ productivity skills powered by the local WorkIQ CLI — read-only insights across email, meetings, calendar, Teams, SharePoint, projects, and people.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • canvas-apps

    Build Power Apps Canvas Apps using the Canvas Authoring MCP server.

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

  • model-apps

    Build and deploy Power Apps generative pages for model-driven apps with specialist agents for planning, entity creation, and parallel code generation. Requires PAC CLI >= 2.7.0…

    by microsoft · Plugin bundle

    Listed on: Copilot CLI: github/copilot-plugins · Describes nearly the same job

Has a listing on Cursor: cursor/plugins (5)
  • Gong

    Pull account summaries, deal insights, and call briefs.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Amplemarket

    Search people and companies, enrich leads, run sequences.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Salesforce (Headless 360, Beta)

    Manage records, users, and org setup across Salesforce.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Clay

    Enrich people and companies, run AI research agents.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

  • Guru

    Search company knowledge and draft verified answers.

    by Cursor · Plugin bundle

    Listed on: Cursor: cursor/plugins · Describes nearly the same job

Has a listing on Docker MCP Catalog (5)
  • Close

    Streamline sales processes with integrated calling, email, SMS, and automated workflows for small and scaling businesses.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Telnyx

    Enables interaction with powerful telephony, messaging, and AI assistant APIs.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • HubSpot

    Unite marketing, sales, and customer service with AI-powered automation, lead management, and comprehensive analytics.

    by docker · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

  • Postman MCP Server

    Give your AI agents trusted access to the full Postman platform.

    by postman.com · MCP server

    Listed on: Official MCP Registry, Docker MCP Catalog · Describes nearly the same job

  • Apify

    Apify is the world's largest marketplace of tools for web scraping, data extraction, and web automation. You can extract structured data from social media, e-commerce, search…

    by apify · MCP server

    Listed on: Docker MCP Catalog · Describes nearly the same job

Has a listing on Official MCP Registry (5)
  • Stride20k x402 Data Gateway

    x402 analytics feed + 20+ pay-per-call agent tools over x402 (data, LLM, risk), no accounts.

    by Marysbrain · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • agentsvc.io

    111 pay-per-call agent tools via x402: web, crypto safety, docs, company checks, IOTA, monitoring

    by agentsvc.io · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • discovery-oracle bot.402/discovery-oracle

    Discover live agent APIs, ranked endpoints, trust, payment telemetry, and x402 surfaces.

    by 402.bot · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • callingly com.callingly/callingly

    Lets AI agents get leads on the phone: call, send SMS, and schedule callbacks for sales teams.

    by callingly.com · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

  • AgentBIT

    x402 router-proxy + 79 keyless pay-per-call tools on Base. Pay once, we run the best tool.

    by agentbit.app · MCP server

    Listed on: Official MCP Registry · Describes nearly the same job

Found by meaning, not by shared code or a shared repository: similar plugins stay separate products, and this is not a review or a recommendation.

Is this your plugin?

Add it to your projects and prove you maintain it with a file in its repository, a file on your domain or a DNS record. You get alerts when a marketplace lists it, drops it, changes its verified mark or what it asks for, and its remote endpoint goes on monitoring as a web service.

Data comes from the Official MCP Registry (registry.modelcontextprotocol.io), CC0 1.0. Figures come from our own regular passes over the marketplaces, last read on . We publish no contact details for plugin publishers.

Where the data comes from: how the catalog is built