RunLayer alternatives for enterprise MCP

TL;DR: RunLayer is a security-focused MCP routing gateway that enforces access controls across servers you already operate, with strong threat detection, SSO, and hybrid VPC deployment. RunLayer ships 200+ pre-built connectors alongside its registry of 18,000+ pre-vetted servers, and for teams whose integration footprint stays within that catalog, routing governance may be sufficient. Composio's catalog covers 1,000+ managed integrations where the provider API maintenance, token refresh edge cases, and scope updates are handled at the platform layer rather than by your engineering team. Composio combines infrastructure-layer policy enforcement with SOC 2 Type II and ISO/IEC 27001 certifications, and AES-256 credential isolation from both your application code and the LLM context. RunLayer remains the better fit if your MCP server estate is already built and your primary need is routing governance or shadow-IT detection.

IT leaders evaluating MCP gateways focus almost exclusively on routing security, which is the right instinct but only half the question. The more precise question is: does the vendor's connector catalog cover the tools your agents actually need in production, and who handles maintenance when an upstream API changes? RunLayer ships 200+ pre-built connectors alongside its pre-vetted server registry. If your integration footprint exceeds that catalog, or if you need the OAuth lifecycle managed at the platform layer rather than maintained in-house per server, that gap compounds with every new integration your agents require.

This analysis covers RunLayer, Composio Enterprise, MintMCP, TrueFoundry, and Kong, comparing them across deployment model, identity integration, audit depth, and whether managed integrations arrive pre-built or must be constructed from scratch. The comparisons also distinguish between vendors that govern access only and vendors that govern the full agent action lifecycle, from routing and authorization through execution, recovery, and verified outcomes.

Assessing RunLayer within your security stack

It is worth being precise about what RunLayer does well before comparing alternatives, because dismissing it carelessly is the same error as adopting it without understanding its scope.

RunLayer is a genuinely strong product in the MCP governance space. The platform integrates with Okta and Entra ID for SSO, supports SCIM provisioning and group sync, and connects to all major identity providers. Its threat detection capability runs automated semantic analysis through ToolGuard and ListGuard, flagging tool poisoning, command injection, prompt injection through MCP tool schemas, and supply chain attacks on third-party MCP servers. RunLayer also maintains a registry of pre-vetted MCP servers and offers deep visibility into unmanaged MCP infrastructure across enterprise environments.

Deployment options span SaaS cloud, self-hosted VPC, and hybrid configurations. Audit trails use a hash-based approach that tracks credential usage without logging the credential itself, and Runlayer Watch discovers unmanaged MCPs, skills, plugins, and agents running across an organization's devices, giving operators visibility beyond MCP servers alone.

The meaningful differentiator at enterprise scale is scope rather than quality: RunLayer routes and governs access to MCP servers. Composio routes, governs, and supplies the tools.

Enforcing least privilege and identity in MCP

RunLayer's access controls operate at the gateway layer, meaning admins restrict which users can reach which MCP servers and which tools those servers expose. Its SSO integration connects Okta or Entra ID group membership directly to MCP server access, so IT does not need a parallel access management system for MCP. This is a sound architectural choice for organizations with an existing, governed MCP estate.

The challenge engineering teams describe consistently is that enforcing least privilege at the routing layer still requires each MCP server to have a well-scoped permission model beneath it. If that server holds overly broad OAuth scopes, the routing gateway cannot narrow them after the fact. Engineering teams who have worked through this pattern report that least privilege must be enforced at both the routing layer and the integration layer simultaneously, which doubles the governance surface when integrations are built in-house.

The identity layer governs access not to routing endpoints alone but to the managed integrations those endpoints expose, so a single group policy controls both who can use the Salesforce tools and which actions those tools can execute.

Audit evidence and self-hosted deployment

RunLayer's hash-based audit trail records which credential was used and when, without storing the raw credential in the log. This is a reasonable privacy-preserving design for organizations that need credential usage evidence without the log itself becoming a credential exposure risk.

During a formal audit, IT teams need logs that capture denied calls alongside successful ones. A log that records only completed actions cannot demonstrate that a control prevented unauthorized access. Composio's audit architecture records every tool call including denials, with user, team, tool, action, and outcome captured per event, producing chain-of-custody evidence an IT team can hand directly to an auditor.

On deployment: RunLayer's VPC option keeps MCP traffic within the organization's own infrastructure, which addresses strict data residency rules directly. Composio's self-hosted deployment is available at the Enterprise tier and covers the same data residency requirement.

Gateway routing versus platform-level governance

The central architectural distinction in this market is not security quality: it is category. A routing gateway enforces policies on traffic passing through it. A platform-level governance system enforces policies and also supplies the tools that generate the traffic.

RunLayer governs access and ships 200+ pre-built connectors alongside its 18,000+ pre-vetted server registry. Composio governs access and provides a managed catalog of 1,000+ integrations where Composio absorbs the OAuth lifecycle maintenance (token refresh, provider API changes, and scope configuration updates) rather than leaving that obligation with your engineering team. The differentiator is catalog depth and who owns the maintenance commitment after go-live, not whether connectors exist.

The question you should ask is: does the vendor's connector catalog cover your production integration footprint, and does the vendor maintain those connectors when upstream APIs change, or does that obligation fall to your engineering team?

How gateways enforce security policies

RunLayer's policy model is UI-driven, meaning admins configure access rules through the dashboard and those rules evaluate at the routing layer as traffic passes through. This works well for operators who need a governed proxy in front of servers they already manage.

Composio's policy-as-code enforcement evaluates access restrictions in the request path before the tool call reaches the target API. An admin disabling the delete action for a Slack integration means the agent cannot delete, regardless of what the model reasons, what a prompt contains, or what a user attempts to inject.

The restriction evaluates at the infrastructure layer, not in the prompt, which closes the gap that Composio's shadow AI governance analysis identifies as the core risk: a model-layer guardrail bends under adversarial input, and an infrastructure-layer control does not.

When RunLayer routing suffices for MCP

RunLayer's strengths align with specific enterprise scenarios. The table below maps each scenario to the relevant RunLayer capability and the Composio complement for teams whose requirements extend beyond routing governance.

Top RunLayer alternatives for secure MCP

The two tables below cover the five most-evaluated alternatives in the enterprise MCP gateway market as of mid-2026. The comparison is split across deployment and identity dimensions in the first table and audit depth with integration coverage in the second.

RunLayer security and audit comparison

Table 1: Deployment and identity

Table 2: Audit depth and integration coverage

Managing tool integrations with Composio

The operational case for a managed catalog is straightforward. WorkOS analysis estimates 150 hours of senior engineer time to build one OAuth integration, followed by approximately 300 hours per year in ongoing maintenance per integration to handle provider API changes, token refresh edge cases, and scope configuration updates. A three-integration stack accumulates substantial engineering overhead in the first year of operation before the team writes a single line of agent logic.

At 300 hours of annual maintenance against a 150-hour build, maintenance cost overtakes the original build cost inside the first year, before the second integration is added.

Composio's MCP gateway replaces that build obligation with a catalog configuration task. The Composio MCP Gateway video walkthrough demonstrates how teams connect tools without custom server builds.

Assessing MintMCP access controls

MintMCP provides SSO and SCIM-driven RBAC, tool-level allowlisting, per-agent identity with machine-to-machine auth, and token rotation with complete audit trails. MintMCP also carries SOC 2 Type II attestation with continuous compliance monitoring. For teams that need lightweight access control without the complexity of an enterprise platform, MintMCP covers the basics, and Composio provides that same lightweight entry point through the free tier (100,000 tool calls per month) while adding ISO/IEC 27001:2022 certification, pre-filled compliance packs, and a managed integration catalog of 1,000+ apps as the organization scales.

Evaluating TrueFoundry for MCP security

TrueFoundry is an ML infrastructure platform that includes MCP gateway capabilities alongside model serving and MLOps management. Its primary strength is consolidating LLM deployment and orchestration into a single control plane, with RBAC policies integrated with enterprise identity providers including Okta and Azure AD via OAuth 2.0. For teams running a unified ML engineering environment, that consolidation has value, and Composio integrates with the same MLOps workflows through API-based connections while specializing in the SaaS tool catalog and credential governance that TrueFoundry does not prioritize. For teams whose primary problem is governed access to SaaS tools like Salesforce, Gmail, or GitHub, TrueFoundry's catalog does not map to that use case.

Kong audit and credential management

Kong's enterprise MCP gateway positions Kong as the OAuth 2.0 resource server in the MCP authentication flow, centralizing security policy enforcement across every Kong-managed MCP server. Kong's architecture is designed so that credentials only meet inside the gateway and access tokens are not passed through to upstream services by default, though passthrough_credentials: true and token exchange can be explicitly configured to forward credentials upstream when the deployment requires it. The distinction at enterprise scale is managed catalog depth: Kong is a general-purpose API gateway extended for MCP, and teams extending it for agent tool access still need to build the OAuth lifecycle management per server rather than drawing from a pre-built integration catalog.

Why Composio meets rigorous security standards

Architecting secure integration workflows and credential isolation

Credential isolation in Composio is structural, not configurable. Tokens are stored with AES-256 encryption and decrypted inside an isolated execution runtime at the moment of each tool call. The architecture documentation is explicit: if decryption happens inside your application layer before the API call is made, the token enters the application's memory space and potentially the model's context. Composio decrypts inside an isolated runtime after the policy check passes, so the raw token never reaches your code or the model. That security property holds regardless of how the calling application is written.

Policy-as-code enforcement requirements

Administrators configure policy restrictions through the Composio dashboard, and those restrictions evaluate in the request path before the tool call reaches the target API. A prompt that instructs the agent to bypass a restriction does not reach the point where it matters: the infrastructure layer has already evaluated and blocked the call.

SOC 2 and ISO 27001 compliance baseline

Composio holds SOC 2 Type II and ISO/IEC 27001 certifications. Pre-filled compliance packs covering common enterprise frameworks are available for download, which reduces the time your IT team spends assembling vendor documentation in response to security questionnaires. When your buying committee includes legal, procurement, and security, third-party attested certifications ready before the question arrives turn a two-week documentation sprint into a one-day turnaround.

The Assista AI case study shows Gmail, Calendar, GitHub, and Drive integrations deployed in production within days. The Zams case study covers Salesforce, HubSpot, Notion, and Slack integrations shipped rapidly. The 11x customer case study documents approximately 380 engineering hours saved across three integrations, alongside $4.2M in enterprise deals unlocked after deployment.

Self-learning execution across 300M+ tool calls

Composio's self-learning capability distills patterns from over 300 million tool calls per month into execution improvements that make repeat tasks 30% more accurate on approximately 2× fewer tokens.

Your engineering team does not need to tune prompts or fine-tune models to realize the improvement. The platform's pattern recognition handles it in the execution layer, which preserves engineering velocity for product-specific logic rather than infrastructure optimization.

Architecting secure identity and access flows

Configuring SSO and SCIM 2.0 for managed MCP

Composio supports SSO via SAML and OIDC with documented integrations for Okta, Microsoft Entra ID, and Google Workspace. Every team gets a unique, scoped MCP endpoint.

SCIM 2.0 maps directory groups to teams with explicit, auditable logic, so provisioning and deprovisioning occur without the manual gateway configuration step that typically creates orphaned access during personnel changes.

MCP vendor assessment: a risk-based scorecard

Mapping user roles to specific actions

Role-to-action mapping must operate at the action level, not just the server level. Restricting a user to a specific MCP server still allows all actions that server exposes unless the access control system can restrict individual operations. Verify that each candidate gateway supports action-level denylisting per role and confirm those restrictions are enforced in the request path rather than through prompt-level instructions the model can reason around.

Evaluating log coverage for compliance

A compliance-grade audit log captures user identity, team, tool name, specific action, timestamp, outcome (success or failure), and denied calls with the same event structure as successful ones. Logs that capture only successful calls cannot demonstrate that a control prevented unauthorized access, which limits their value as compliance evidence. When evaluating vendors, request a log sample before the security review closes rather than accepting a description of what the log captures.

Managed services vs. in-house dev

Build vs. Buy TCO comparison per integration

Per WorkOS analysis, a single OAuth integration requires approximately 150 hours to build and roughly 300 hours per year in ongoing maintenance. At 300 hours of annual maintenance against a 150-hour build, maintenance cost overtakes the original build cost inside the first year of operation.

Mandatory security and compliance proofs

Non-negotiable attestations for enterprise deployment:

• SOC 2 Type II (security, availability, and confidentiality criteria): Composio holds this certification.

• ISO/IEC 27001:2022: Composio holds this certification, mapping to the information security management requirements most enterprise procurement checklists require.

• Data Processing Agreement (DPA): Available at Enterprise tier with Composio. Confirm scope of data processed and subprocessor list.

• Service Level Agreement (SLA): Available at Enterprise tier. Confirm uptime commitment and incident response timelines.

Procurement readiness: five questions to ask any MCP gateway vendor

1. Where are OAuth tokens stored, what encryption standard applies, and is that enforced by architecture or by configuration?

2. Do audit logs capture denied calls with the same granularity as successful ones?

3. Is the policy model code-driven and auditable, or UI-only with no GitOps or dry-run workflow?

4. What third-party certifications are in place, and when were they last renewed?

5. What is the subprocessor list, and are any subprocessors in jurisdictions that conflict with your data residency requirements?

Key considerations for your vendor shortlist

A hybrid approach is architecturally viable for teams with mixed requirements, using RunLayer for on-premise or air-gapped local network routing and Composio for the 1,000+ managed SaaS integrations where cloud routing is acceptable. This reduces the in-house build obligation while preserving strict local control where it is required.

Composio's trust center provides downloadable evidence for both SOC 2 Type II and ISO/IEC 27001:2022, reducing the documentation assembly burden during a formal vendor review.

Two confirmed deployment paths are available: managed cloud with regional data handling, and fully self-hosted at the Enterprise tier for environments where no external routing is permitted.

If your integration backlog is growing faster than your engineering team can address it, or if an enterprise prospect has asked about credential handling and you need a documented answer before the next review, book a technical architecture review to walk through your specific security requirements.

FAQs

What is the difference between RunLayer and Composio?

RunLayer is a routing gateway that enforces security policies on MCP servers you have already built and operate, with strong threat detection, a pre-vetted server registry, and VPC deployment. Composio is both a routing gateway and a managed platform with 1,000+ pre-built integrations, AES-256 credential isolation, and policy-as-code enforcement evaluated before the LLM is involved.

Does Composio hold SOC 2 Type II certification?

Yes, Composio holds SOC 2 Type II and ISO/IEC 27001:2022 certifications.

How does Composio prevent prompt injection from bypassing access controls?

Policy-as-code enforcement evaluates access restrictions in the request path before the tool call reaches the target API, which means the restriction executes at the infrastructure layer and does not depend on the model's reasoning or the prompt's contents.

What does it cost to build and maintain MCP server integrations in-house?

Per WorkOS analysis, a single OAuth integration requires approximately 150 hours to build and roughly 300 hours per year in ongoing maintenance per integration to handle provider API changes and token refresh edge cases. At 300 hours of annual maintenance against a 150-hour build, maintenance cost overtakes the original build cost inside the first year.

What identity providers does Composio support?

Composio supports SSO via SAML and OIDC with documented integrations for Okta, Microsoft Entra ID, and Google Workspace, plus SCIM 2.0 for continuous directory group-to-team mapping.

How does Composio's self-learning capability improve agent performance over time?

Composio distills patterns from over 300 million tool calls per month into execution improvements that make repeat tasks 30% more accurate on approximately 2× fewer tokens. No prompt tuning or model fine-tuning is required from the engineering team to realize the improvement; the platform handles optimization in the execution layer automatically.

Can Composio be self-hosted for strict data residency requirements?

Yes, Composio's self-hosted deployment is available at the Enterprise tier.

Key terms

MCP (Model Context Protocol): An open protocol that standardizes how AI agents communicate with external tools and data sources. Agents invoke structured operations on backend systems through MCP servers.

Policy-as-code: Access control rules defined and enforced programmatically in the infrastructure layer, evaluated in the request path before any model interaction, rather than described in natural language instructions the model can interpret.

Credential isolation: An architectural property where decrypted credentials never enter application memory or the LLM context window, instead resolving inside an isolated execution runtime at the moment of each tool call.

SCIM 2.0: System for Cross-domain Identity Management, a standard that automates user provisioning and deprovisioning by syncing directory group membership to application access in real time.

Audit log granularity: The level of detail captured per event in an access log, including whether denied calls are recorded with the same field completeness as successful ones, which determines whether the log can serve as compliance evidence.

Self-learning execution: A platform mechanism by which patterns from 300M+ tool calls per month are distilled into execution improvements, making repeat tasks 30% more accurate on approximately 2× fewer tokens without requiring manual prompt adjustment or model fine-tuning.