Command K
Build MCP
  • API → MCP
    OpenAPI or GraphQL in, MCP out.
  • Hosting & analytics
    Quotas, logs, free tier.
  • MCP auth
    OAuth 2.1, shared presets.
CMD+K Widget
  • AI assistant
    AutoView, confirm-UX.
  • Knowledge base
    Grounding with citations.
  • Connected tools
    End-user marketplace.
  • Guided toursSoon
    Step-by-step in-product.
  • Whitelabel
    Your brand end-to-end.
Monetize
  • Usage attribution
    Per-user spend & margin.
  • Billing meters
    Stripe today, more soon.
One layer. Three pillars.Explore the product
Use casesMarketplacePricing
  • Learn MCP
    What MCP is, why it matters, how to ship one.
  • Docs
    Guides, references, and quickstarts.
  • Blog
    MCP, in-product AI, and monetization.
  • Changelog
    What shipped, week by week.
  • MCP servers
    Public directory of hosted MCPs.
Book a demoSign inStart free trial
The Command+K blog

Field notes on AI-native SaaS.

How to ship MCP servers, embed in-product AI assistants, and monetize AI usage — written by the team building the platform.

All clustersMCP educationIn-product AIAI monetizationComparison & discovery
Clear tag: #Debugging ×
  • MCP education

    We tested 25 "official" MCP servers for one-click OAuth. Ten failed.

    A registration_endpoint in a provider's OAuth metadata isn't proof it accepts self-registration. Real testing against Intercom, Calendly, PostHog, Freshdesk and 21 other MCP servers found a charset bug and ten false positives — here's what broke and how we fixed the marketplace around it.

    Sep 13, 2026 · 6 min
  • MCP education

    Cloudflare might be blocking your AI customers — the AI-bot trap for MCP servers

    Cloudflare's AI-bot protections block legitimate Claude and ChatGPT traffic to APIs and MCP servers. How to spot edge blocking (zero server logs, OAuth passes, tool calls vanish) and fix it without disabling bot protection.

    Jul 11, 2026 · 5 min
  • MCP education

    The three bugs that break real MCP clients (found with Claude in production)

    A 405-vs-401 handshake detail, a missing CORS header, and Cloudflare's AI-bot blocking: three production bugs that pass spec review but break Claude, Cursor and ChatGPT — with symptoms and fixes.

    Jul 11, 2026 · 6 min
Command K

The MCP, widget, and monetization layer for product teams shipping AI features in production.

Product
  • Build MCP
  • CMD+K Widget
  • Monetize
  • Use cases
  • Marketplace
  • Compare
  • Alternatives
  • Pricing
  • Predictable pricing
Developers
  • Learn MCP
  • Docs
  • MCP servers
  • Blog
  • Guides
  • Changelog
  • Status
  • Security
Company
  • About
  • Partners
  • Contact
  • Trust & refunds
  • Terms
  • Privacy
  • DPA
commandplusk.com · © 2026