---
schema_version: "1"
id: b6a8f66913276597f5ae29e59d4ebb33d369cc6ea74a36dea473257004d7bef3
title: MCP Schema Validation Policy
collection: mulesoft
version: current
locale: en-us
portal_url: https://docs.salesforce.com/mulesoft/current/en-us/gateway/1.9/policies-included-mcp-schema-validation.md
canonical_url: https://docs.mulesoft.com/gateway/1.9/policies-included-mcp-schema-validation
source_site: docs.mulesoft.com
content_type: documentation
content_hash: 776655f441625f8460a63109b29cd963249773f0dbad3a07107e29622d0271f4
description: MuleSoft Documentation Site
release: "1.9"
latest: false
---
---
product: Omni Gateway
version: 1.9
keywords: api gateway, flex gateway, gateway, policy
---

# MCP Schema Validation Policy

> For the full documentation index, see: https://docs.mulesoft.com/llms.txt

<table><colgroup><col> <col></colgroup><tbody><tr><td><p><strong>Policy Name</strong></p></td><td><p>MCP Schema Validation</p></td></tr><tr><td><p><strong>Summary</strong></p></td><td><p>Validates MCP requests to ensure they conform to the MCP specification</p></td></tr><tr><td><p><strong>Category</strong></p></td><td><p>MCP</p></td></tr><tr><td><p><strong>First Flex Gateway version available</strong></p></td><td><p>v1.9.3</p></td></tr><tr><td><p><strong>Returned Status Codes</strong></p></td><td></td></tr></tbody></table>

## Summary

The MCP Schema Validation policy validates that every every JSON RPC request to the MCP server
complies with the MCP schema (MCP 2024\_11\_05 standard). If validation fails it will report a
Policy Violation.

There are no configuration parameters for this policy.

### Flex Gateway Local Mode

The MCP Schema Validation policy isn’t supported in Local Mode.