Never build Permissions again. Zero-latency fine-grained authorization as a service for human, machine, and agentic identities.
This is the 4th launch from Permit.io. View more

Permit.io MCP Gateway
Launching today
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.







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The concept is strong but security tools live and de by trust .Would be great to see audits compliance certifications or deeper technical docs.
Hmm , MCP is powerful, but auth and governance are definitely the messy part right now. Adding OAuth and fine grained permissions without changing the server code sounds super practical. The “just swap the URL” part is especially cool. Congrats on the launch .
What stands out to me is the “no code changes” part. A lot of security tools require heavy integration, so just swapping a URL and getting full authorization control sounds very appealing.
The consent and authorization flow sounds strong. I’d just want to make sure it stays simple for end users and doesn't add too much friction.
I like the direction here. Instead of building new systems, you’re improving what already exists and making it safer.
Formaly
This is Great!
Def gonna try this out!