Controlled MCP tool execution

One MCP endpoint.
Every tool. With guardrails.

Connect your agent to Koncrate once. It discovers installed plugins, and every tool call passes through one gateway that enforces install state, scopes, confirmation, and audit — before it ever reaches a plugin's backend.

Connect your agent Build & publish a plugin

1. Install Koncrate in your agent

Add the gateway as a remote MCP server. In Claude Code:

claude mcp add --transport http koncrate \
  https://koncrate-gateway.linaomasa929.workers.dev/mcp

Or, for clients that take a JSON config:

{
  "mcpServers": {
    "koncrate": {
      "type": "http",
      "url": "https://koncrate-gateway.linaomasa929.workers.dev/mcp"
    }
  }
}

That's it — no per-plugin endpoints. One connection, scoped to your workspace.

2. Your agent learns the rest on its own

On connect, the gateway tells the agent its policy and exposes self-serve tools. No prompt engineering required:

koncrate.recommend_plugins

Find catalog plugins that fit the current task.

koncrate.request_install

Ask to install a plugin — a human approves before tools appear.

koncrate.scaffold_plugin

Generate a manifest + a deployable backend skeleton from a short spec.

koncrate.publish_plugin

Submit a finished plugin to the catalog for review.

3. Build a plugin: logic in your backend, guardrails ours

Scaffold. Describe your tools; get a manifest and a Cloudflare Workers backend skeleton.
Implement & deploy. Fill in each tool's logic and deploy your own backend (starts at $0).
Publish. Submit the manifest. Once reviewed, it's installable by everyone.
Get paid. Set your price; calls flow through the gateway, metered and audited.

You own the business logic and the backend. Koncrate owns discovery, auth, policy, confirmation, audit, and billing.

Pricing

For users

Connecting and installing plugins is free. You pay only for paid plugins you use.

For developers

You set your own price — free, per-call, or monthly. Koncrate adds a small platform fee on top and handles metering, so you focus on the tool.

Billing is rolling out; the first cohort of plugins is free to publish.

One MCP endpoint.Every tool. With guardrails.