odatav4-mcp (singlebarrel/odatav4-mcp) is an MCP server listed on the M8ven Trust Index. It scores 56 out of 100, grade D. It declares 19 tools. No publisher has claimed this listing.
An MCP server for OData v4 endpoints, especially Microsoft Dataverse/Dynamics 365, enabling authentication, schema discovery, querying, CRUD, and more via natural language.
Caution. Specific findings reduced this grade. They are listed on the page. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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The grade above is for the source repository. Registries can serve a different version, so we mark the ones we were not able to read.
These names and descriptions are the publisher's own, read from the source code. We print them as written. Our assessment is the findings above, not this list.
loginauth_statusShow whether a user is signed in and which accounts are cached.
logoutSign out: remove all cached accounts and tokens.
service_infoShow the configured OData service root and basic status.
whoamiDataverse WhoAmI: returns the calling user's UserId, BusinessUnitId, and OrganizationId.
list_entity_setsdescribe_entitylist_operationsquerynext_pageFetch the next page of a previous query using its @odata.nextLink value.
get_recordRetrieve a single record by primary key (GUID) or alternate key (key='value').
create_recordupdate_recorddelete_recordDelete a record by key. This is irreversible — confirm with the user first.
associate_recordsdisassociate_recordsRemove an association created via a navigation property (DELETE $ref).
call_functioncall_actionraw_requestDisclosed 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
Anthropic's MCP TypeScript SDK has a ReDoS vulnerability
Model Context Protocol (MCP) TypeScript SDK does not enable DNS rebinding protection by default
fast-xml-parser affected by numeric entity expansion bypassing all entity expansion limits (incomplete fix for CVE-2026-26278)
ODATA_AUTHno Set to none for anonymous OData services (e.g. public test services).ODATA_CACHE_DIRno Where tokens and $metadata are cached (default ~/.config/odatav4-mcp/<host>).ODATA_CLIENT_IDno Override the Entra app id (default: the well-known Dataverse dev-tools client).ODATA_LOGIN_FLOWno interactive (default: opens a browser, localhost redirect) or devicecode (enter a code at microsoft.com/devicelogin — for headless/SSH, or if your tenant blocks the browser flow).ODATA_TENANTno Tenant id or domain (default organizations). Set this if your account exists in multiple tenants.ODATA_URLyes Service root. A bare Dataverse org URL (https://yourorg.crm.dynamics.com) is expanded to /api/data/v9.2/ automatically.Tool 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
19/19 tools missing one or more hints — login (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); auth_status (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); logout (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +16 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.
License file
No license file
Add a LICENSE file (MIT, Apache-2.0, etc.).
Tests exist
No test files found
Add tests that exercise each declared tool.
Production dependencies are patched
1 critical, 5 high severity in production deps — fast-xml-parser@4.5.1 (critical), @modelcontextprotocol/sdk@1.12.1 (high)
Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.
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