Permit MCP Gateway

What it does

MCP lets AI agents connect to your tools, but its built-in auth is limited. There's no fine-grained authorization, no governance, and no connection to your existing IdP infrastructure. Permit MCP Gateway is a zero-trust proxy that adds what's missing to any MCP server without touching its code. Swap one URL and every tool call gets OAuth authentication, Zanzibar-style authorization, consent screens, and full decision logging. No SDK to install. No agents to rewrite. Works with any MCP server.

The drop-in trust layer for MCP—authentication, fine-grained authorization, consent, and audit for AI agents. Zero standing permissions. Enterprise-grade security.

Authentication, fine-grained authorization, consent, and audit—so your agents can move fast without turning your SaaS and data into open desert. Deploy AI agents with confidence. Real-time visibility, intelligent detection, and enterprise-grade security. Every session starts with a real human. The gateway authenticates users via your existing IdP—SSO, OIDC, OAuth 2.1—and binds every agent action to a verified identity. Drop-in proxy for any MCP server. No changes to your existing setup. https://your-gateway.agent.security/mcp?upstream_mcp=https://api.salesforce.com/platform/mcp/v1-beta.2/sobject-all https://your-gateway.agent.security/mcp?upstream_mcp=https://api.githubcopilot.com/mcp/…from permit.io

In the maker’s words, at launch

Hi HN, Gabriel, Co-Founder at Permit.io. We're releasing Permit MCP Gateway today, an authorization proxy for MCP servers. TL;DR - we built an MCP Gateway that developers love and CISOs trust. Watch more[0] Now, after your little hate on using fancy copy on HN, to the real thing: MCP is in a strange place. Developers…

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