1,500+ apps. One plug.
Your users connect an app once, under your brand. Your agent, or Claude, ChatGPT and Cursor, can then use it through one MCP endpoint or REST, with every action graded read, write or destructive so your policies decide what runs.
The catalog, counted.
The apps agents reach for first.
Every app, searchable.
Anything else your agent needs.
Official MCP servers
More SaaS vendors now run their own remote MCP servers. Arc0 puts them behind the same connect flow, vault, policies and audit log as everything else, so your agent sees one endpoint and your customers see one set of controls.
Your own APIs
Internal services and long-tail APIs can be added from an OpenAPI description, with each operation graded read, write or destructive. This is on our roadmap. Tell us what you need.
How actions are graded
Every action is tagged read, write or destructive, so one policy covers a whole app and new actions inherit a safe default. For how scopes and policies fit together, see the concepts.
Missing an app?
Tell us which app your agent needs and what it should be allowed to do there.