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Metorial

Open-source MCP and skills gateway that connects AI agents to company tools through one governed link, with SSO, access policies, a security layer and a full trace of agent activity.

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What it does

Metorial is a gateway between AI agents and the tools a company uses. Agents that support MCP connect through it to approved tools and skills, each tied to the person behind the agent, and every call is recorded. The site says Metorial is backed by Y Combinator and describes it as open source. More than 1,000 integrations are available, and teams can add internal systems and private APIs as their own providers. Metorial handles authentication, identity, hosting and security. Magic MCP combines the approved tools into a single URL that people connect to through single sign-on, with no tokens to manage. For governance, Portals give employees a place to sign in and see the tools and skills they are allowed to use, with SSO, SAML and SCIM support. Protoguard checks messages and tool calls against policies and, according to the site, catches prompt injection, watches for provider schema changes and blocks requests outside policy. Tracing keeps a searchable record of sessions, messages and tool calls, and Skills let experts write a workflow once for every teammate's agent to use. The site says it works with Codex, Claude Code, Cursor, Copilot and in-house agents, and that Metorial can run in your own cloud.

Capabilities

  • MCP gateway with role-based access, so agents act under a real person's identity
  • 1,000+ integrations, plus your own tools and private APIs
  • Magic MCP: one link for all approved tools, with single sign-on
  • Protoguard security layer that checks messages and tool calls against policies
  • Tracing with searchable record and replay of sessions and tool calls
  • Skills: shared workflows that teammates' agents can reuse

When to use it

  • You are rolling out AI agents across a company and need security or IT to approve and control tool access
  • You want one connection for MCP clients such as Claude Code or Cursor instead of managing tokens for each tool
  • You need an audit trail of what agents did, tied to a real user
  • You want to run an MCP gateway in your own cloud

Alternatives to explore

  • Runlayer
  • Arcade.dev
  • Composio