MCP vs. agent connectors: how agents reach apps
MCP is the standard interface for handing tools to an agent. Agent connectors handle auth, hosting, and breadth. Here's how they fit.
People frame this as MCP vs. connectors, like one wins. Wrong question. MCP is a protocol. Connectors are infrastructure. You want both.
What MCP is
MCP (Model Context Protocol) is a standard interface for handing an agent tools and data. Instead of a bespoke tool format per model, you write an MCP server once and any client that speaks the protocol can call it. That standardization is useful, and I build on MCP in my own stack.
But a protocol doesn’t run anything. It defines the shape of the call, not the auth, the hosting, or the accounts behind it.
What agent connectors add
The hard part of connecting an agent to your real apps isn’t the call format. It’s everything around it: OAuth per service, token refresh, rate limits, a server to host it all — then doing it again for every new app.
That’s the layer CoreSpeed handles. One OAuth connects an agent to 50+ apps you already use — Gmail, Slack, Notion, GitHub, Stripe, HubSpot — instead of a key per service. It also carries what a raw protocol won’t: memory, plain-English policy rules, human-in-the-loop approvals, and Agent Pay budgets so an agent can act without going off the rails.
MCP and agent connectors are complementary
MCP is the wire format. The connector is the access-and-control plane behind it. MCP says how a tool gets exposed. The connector decides which apps, under which auth, with which guardrails — and keeps that working as things change.
You can wire every integration by hand on top of MCP. I have. It’s the setup tax that kills most agent projects before they ship.
Give the agent the standard, and give it real access too. corespeed.io