Prefactor: MCP Auth, Agent Identity, and the Future of Authentication

TL;DR:

Prefactor is building the authentication infrastructure for AI-native platforms. We enable secure, scoped, and auditable access for autonomous agents — starting with MCP support, but pushing beyond it.

MCP is a meaningful step, not the endgame. Our vision is a world where agents hold portable, verifiable identities that move seamlessly across systems — like passports for machines, with the simplicity of an API.

🤖 The Problem: Authentication Was Built for Humans

Authentication today assumes a human user. MFA, CAPTCHAs, login UIs — everything is built around someone typing, clicking, or proving they’re real. That’s fine for people. But it breaks down fast when the actor isn’t human.

AI agents are becoming first-class citizens in software:

• They write and send emails

• They trigger workflows in your SaaS

• They call your APIs and impersonate users

These agents don’t have fingers. They can’t click “log in.” They don’t do password resets. But they do need access — secure, scoped, and governed.

This is the core challenge of agent identity. And legacy auth systems don’t solve it.

🔑 MCP: A Stepping Stone to True Agent Identity

The Machine Client Protocol (MCP) is an emerging spec designed to support non-human access to APIs and systems. It introduces critical primitives:

• Token-based agent access

• Delegation from a human or system to an agent

• Scoped permissions and expiration

• Stateless validation with auditability

This is a welcome evolution — but it’s not the whole story.

MCP doesn’t solve agent identity as a lifecycle. It doesn’t support:

• Cross-organization identity for agents

• Persistent, portable credentials

• Complex delegation chains or multi-system authority

• Identity resolution or reputation for agents over time

MCP is a starting point — not the standard that will define the agent-native future.

We believe agent identity should work like a passport for machines — persistent, portable, and programmable.
And it should be as easy to integrate as an API call.

🧭 Our Mission: Infrastructure for Agent Identity

At Prefactor, we’re building the auth infrastructure layer for the agent era — starting where it hurts most: MCP authentication and scoped delegated access.

Our mission is to make agent-first authentication:

• Secure

• Scalable

• Developer-friendly

• Composable with modern CI/CD pipelines

We don’t believe in reinventing identity UIs or shipping black-box SDKs. We believe in infra-as-code that integrates directly into your stack — and gives you control over every permission and delegation an agent is granted.

⚙️ What We’ve Built

We’re building a platform that gives teams everything they need to support agent access today — and scale into the future:

• ✅ MCP-compliant token generation and validation

• ✅ Agent-scoped identity and delegated authority

• ✅ Policy-as-code access control

• ✅ Audit-ready logging for non-human actors

• ✅ Hosted infrastructure with CI/CD integration

• ✅ White-glove implementation support tailored to your stack

Whether you're building an AI-native product or fielding RFPs asking for agent login, Prefactor makes it possible to say: "Yes — we support that."

🧠 Our Long-Term Vision: Agent Identity as a Primitive

Our roadmap doesn’t stop at delegation and token validation.

We’re working toward a world where:

• Agents have persistent identity across systems and vendors

• Delegation is dynamic and traceable

• Agent access is governed like infra, not like user accounts

• Cross-platform interoperability is built in from day one

• And autonomous software can safely authenticate and act in complex environments

This is where agent-native identity infrastructure needs to go — and we’re building it.

🚀 Join the Teams Adopting MCP the Right Way

MCP is here. Agent login is becoming a requirement. Don’t duct tape it together with user impersonation or service accounts.

With Prefactor, you can:

• Support agent authentication in hours, not weeks

• Handle delegation, scoping, and audit cleanly

• Future-proof your platform for autonomous software

👉 Want to explore agent identity for your platform?
Request early access to Prefactor