D365 Finance & Operations MCP Server
Enables AI assistants to explore metadata, query data, and perform write operations across multiple Microsoft Dynamics 365 Finance & Operations environments. It features specialized tools for OData execution and data analysis with built-in read-only safety for production environments.
Warning. Serious findings were identified. Review the full report before connecting. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
How we verified
Verified is a snapshot. Live keeps it current, and builds your track record.
⚡ Connect GitHub → continuous verification on every pushwhy connect →Who stands behind it
zhound420
Source: Glama
Claim it to get a verified publisher badge, a free copy of our full audit findings, and direct contact for any high-priority issues we find. Or connect your repo for our deepest verification, Live Monitored: read-only, revoke anytime. What we access →
Install from
M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.
Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
fast-xml-parser has an entity encoding bypass via regex injection in DOCTYPE entity names
@modelcontextprotocol/sdk has cross-client data leak via shared server/transport instance reuse
fast-xml-parser has RangeError DoS Numeric Entities Bug
fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)
fast-xml-parser affected by DoS through entity expansion in DOCTYPE (no expansion limit)
D365_CLIENT_IDAzure AD application (client) IDD365_CLIENT_SECRETAzure AD client secretD365_CONFIG_FILEPath to config file if not in default locationD365_ENVIRONMENT_DISPLAY_NAMED365_ENVIRONMENT_NAMED365_ENVIRONMENT_TYPEOptional: "production" or "non-production" (defaults to "production" for safety)D365_ENVIRONMENT_URLD365 F&O environment URL (e.g., https://contoso.operations.dynamics.com)D365_SINGLE_ENV"": "production"D365_TENANT_IDAzure AD tenant IDMCP_HTTP_PORTMCP_TRANSPORTTool annotations
No tools have read-only/destructive annotations
Add readOnlyHint or destructiveHint annotations to every tool so hosts can warn users before invoking.
All four hints declared on every tool
22/22 tools missing one or more hints — aggregate (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); analyze_customer (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); batch_crud (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +19 more. OpenAI's directory rejects tools where any of the four hints are missing or non-boolean.
For every tool, set all four hints (readOnlyHint, destructiveHint, idempotentHint, openWorldHint) to explicit true/false values that match the handler’s actual behaviour.
Destructive tools are labelled
2 tools perform destructive updates without destructiveHint — save_query deletes at line 82 (fs.unlink(tempFile)); delete_saved_query deletes at line 82 (fs.unlink(tempFile))
Add destructiveHint:true to any tool whose handler calls .delete(), .upsert(), .update(), unlink, rm, DELETE, DROP, REPLACE INTO, or any operation that overwrites existing data.
Descriptions match behaviour
1 tool describes read intent but its handler mutates — save_query (line 77: fs.writeFile(tempFile, content, "utf-8"))
Rename the tool, rewrite the description, or move the side-effect into a separate clearly-named tool.
Tool inputs are validated
21/22 tool handlers declare input schemas (95%)
Declare an inputSchema with zod/joi/yup on every tool definition.
Tool test coverage
Only 0/22 tools referenced in tests (0%)
Write tests that reference each tool by name so every tool has at least one test.
Shell command execution
2 child_process/subprocess calls in production code — runs shell commands (setup.js:217, setup.js:238)
Prefer library functions over shell-outs. If you must shell out, ensure all inputs are properly escaped.
Production dependencies are patched
1 critical, 4 high severity in production deps — fast-xml-parser@5.3.3 (critical), @modelcontextprotocol/sdk@1.25.3 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
Tool description accuracy
save_query: description implies read-only but handler writes/deletes/executes
Update tool descriptions to accurately reflect all capabilities — especially write, delete, or execute operations.
Claim the listing to review these findings one by one and send us a correction where you disagree, straight to the team. Claiming also means we tell you when the grade moves, and reach you first if we find anything urgent.
[](https://m8ven.ai/mcp/zhound420/d365fo-claude-connector)?variant=verified from the URL.Vetting this one by hand? Tool Check is an MCP that scores other MCPs. Add it once and ask Claude, ChatGPT, or any MCP client to grade a server, surface CVEs, check the publisher, and suggest safer alternatives — before you install.
https://m8ven.ai/api/mcp/tool-check