MCP Security & Secure MCP Libraries
The Model Context Protocol is how AI agents reach your tools and data — which makes every MCP server a new door into your systems. We design, build, and harden that door: authentication, tool-level authorization, gateways, and guardrails, all on open standards.
Why MCP Deployments Get Breached
Agents don't get phished — they get over-permissioned, poisoned, and impersonated.
- Tool poisoning. Malicious or compromised MCP tool descriptions steer the model into exfiltrating data or invoking tools it never should — the instructions hide in the metadata your agent trusts.
- Weak or missing authentication. Many MCP servers still ship with static keys or no auth at all, instead of OAuth 2.1 with protected-resource metadata (RFC 9728) and properly scoped tokens.
- Over-privileged tools. One "do everything" scope shared by every tool means the least trustworthy tool holds the same power as the most trusted one (OWASP MCP02).
- Confused deputy & token passthrough. Servers that forward the caller's token downstream let an attacker launder privileges through your agent instead of attacking you directly.
- Prompt injection into tool calls. Untrusted content — a web page, an email, a document — becomes instructions, and the agent's tools execute them with the agent's permissions.
- Shadow MCP servers & missing audit. No registry of which agents talk to which servers, no kill switch, and no trail proving what a machine actually did on whose behalf.
What We Deliver
Concrete, standards-based building blocks — designed, implemented, and handed over with docs your team owns.
MCP Gateway Architecture
A policy-enforcing front door for every agent-to-tool call: authentication, scope checks, rate limits, allow-listing, and full audit — designed for your stack and traffic.
OAuth 2.1 for MCP Servers
Proper authorization-server integration, protected-resource metadata (RFC 9728), dynamic client registration, and scoped, short-lived tokens instead of static keys.
Secure MCP Server Development
We build or retrofit MCP servers with hardened libraries: input validation, least-privilege tool design, safe output handling, and defense against tool poisoning.
Tool-Level Authorization
Per-tool, per-agent scope design and fine-grained checks (FGA/ReBAC with OpenFGA or OPA) so each tool can do exactly what it needs — and nothing else.
Guardrails Integration
Enkrypt AI Guardrails and LiteLLM-based gateways wired into the request path: prompt-injection screening, PII filters, and policy checks before a tool ever fires.
Agent Registry, Kill Switch & Audit
An inventory of every agent and MCP server, credentials that can be revoked in one action, and audit trails that prove what ran, when, and on whose behalf.
Learn It Free First
We teach everything we practice — these IntegrAuth Academy lessons cover the same ground, free, no sign-up.
Governing MCP
Agents, tools & guardrails — how MCP calls get governed end to end
IntegrAuth Academy · freePrompt Injection
When the data becomes the instructions — and how to contain it
IntegrAuth Academy · freeThe Agent Registry & Kill Switch
Inventorying agents and revoking a compromised one in seconds
IntegrAuth Academy · freeAgent Audit Trails
Proving what the machine did — logs that survive an incident review
IntegrAuth Academy · freeScan Your MCP Surface — Free
Point our free micro-tools at your own MCP setup. Every check mirrors one we run in real engagements.
MCP Auth Scan
Grade a remote MCP server's OAuth 2.1 authorization setup (RFC 9728/8414)
mcpauthscan.integrauth.comMCP Scopes
Score MCP tool over-privilege (OWASP MCP02)
mcpscopes.integrauth.comTool Poison Check
Scan MCP tool definitions for tool-poisoning indicators
toolpoisoncheck.integrauth.comA2A Scan
Grade an A2A Agent Card's declared auth schemes
a2ascan.integrauth.comAI Gateway Check
Grade a LiteLLM / AI-gateway config for hardening gaps
aigatewaycheck.integrauth.comWell-Known Scan
Map & grade a domain's OAuth/OIDC/MCP .well-known discovery surface
wellknownscan.integrauth.comRelated deep dives: AI Agent Security · API Security
Secure Your Agents' Front Door
Tell us what your agents talk to — we'll tell you where the doors are, and help you lock the ones that matter.
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