Onto MCP Server

Onto is an MCP integration. Clean Markdown and AI-readability scoring for any URL. Built for AI agents.

Hosted connection

The registry lists a streamable-http connection at https://api.buildonto.dev/mcp.

Packages and local setup

The published npm package is @ontosdk/mcp, version 1.5.2. Its declared MCP transport is stdio.

The package declares ONTO_API_KEY (required): Your Onto API key (get one at https://app.buildonto.dev/read/keys — free tier includes 1,000 credits/month).; ONTO_API_BASE: Optional override for the Onto API base URL. Defaults to https://api.buildonto.dev..

Before connecting

Check the maintainer’s instructions for account access, authentication and the supported client configuration. Once connected, inspect the tools your client receives and try a small task that matches the server’s stated purpose. The registry description does not include a verified, complete tool list.

Project and source

View the publisher’s registry entry · Project repository · Project website. This profile uses version 1.5.2 from the registry. Registration identifies the publisher namespace; it does not establish that this is a first-party integration for every service it connects.

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