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.
This is shipped work, not theory: we are the primary authors of Enkrypt AI’s open-source Secure MCP Gateway and its public Python SDK, and we designed the Kong gateway layer behind that platform.
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.
What Clients Say About Our MCP Security Work
In their words.
Tanay BaswaEx-Founding Engineer, Enkrypt AIIntegrAuth is an exceptional tech partner. Their deep expertise across cloud architecture, IAM, API gateways, and backend development is top-notch. They are highly professional, remarkably skilled, and deliver secure, robust solutions every time. Highly recommended!
Regoeng MooketsiCo-founder & CTO, I'Curity SolutionsGreat team with deep IAM, MCP and AI knowledge. Always breaking barriers and innovating.
Nitin Aravind BirurAI Researcher, Enkrypt AIIntegrAuth brings genuinely impressive expertise in Kong Gateway and system/architecture design for DevOps infrastructure. They think through problems critically instead of just applying quick fixes, and it shows in the quality of their recommendations.
Communication is consistently great throughout a project. They keep you in the loop, explain trade-offs clearly, and are accommodating whenever requirements shift. Delivery is on time, every time, which isn't something you can say about every vendor.
Beyond the technical skills, they're just great to work with, patient, responsive, and easy to collaborate with. Highly recommend IntegrAuth for Kong Gateway or infra architecture expertise.
Rohith ShettyUX Design Manager, Enkrypt AIQuality of work done is top notch, would highly recommend.
Tavernt MuchenjeCo-founder & Managing Director, I'Curity SolutionsI'Curity Solutions have had a great experience working with IntegrAuth on CIAM, authentication, and API Gateway integration projects. Their team demonstrates strong technical expertise across identity and access management, authentication, API security, and integration.
They are professional, responsive, and collaborative throughout the engagements, taking the time to understand the requirements and work with us to develop practical solutions.
We particularly appreciate their consultative approach, technical knowledge, and commitment to delivering quality outcomes. We would confidently recommend them to organisations looking for a capable and reliable partner for CIAM, authentication, API integration, and API security initiatives.
Divyanshu KumarFounding AI Research Engineer, Enkrypt AII've been working with IntegrAuth for almost two and a half years, and they've been a great team to work with. They're technically strong and have deep expertise across Kong Gateway, security, authentication and authorization, and audit trails. Their experience with Kong Gateways, OpenSearch and Elasticsearch has also been really valuable for us.
What I've particularly liked is how quickly they understand a problem and come up with practical solutions. They're professional, responsive, and get things done without unnecessary back and forth. Having worked closely with them for this long, I'd definitely recommend the IntegrAuth team.
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: IAM & SSO · API Gateways · Custom Software · AI Agent Security · API Security · Kong & Lua Plugins
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.
akhil@integrauth.com