gmail-mcp-server (ndungukamami-sketch/gmail-mcp-server) is an MCP server listed on the M8ven Trust Index. M8ven has not graded it: we have no way to read this server ourselves. No publisher has claimed this listing.
A secure MCP server that enables Claude to read, search, send, reply, forward, and manage Gmail messages and labels through natural language commands.
Emerging. No concerning findings. Grades remain capped until the project builds reputation through adoption. Grades reflect the full trust pyramid: code, verification depth, and reputation. New projects cap at C until adoption is earned.
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ndungukamami-sketch
Source: Glama
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Install from
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Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.
When Vitest UI server is listening, arbitrary file can be read and executed
sanitize-html has incomplete URI scheme validation in that allows javascript: URIs through action, formaction, data, poster, and background attributes
GMAIL_MCP_CONCURRENCYexport ="5" # parallel API fetch limitGMAIL_MCP_CONFIG_DIRexport ="$HOME/.config/gmail-mcp" # token storage dirGMAIL_MCP_CREDENTIALS_PATHexport ="./credentials.json" # credentials locationGMAIL_MCP_LOG_LEVELexport ="info" # debug info warn errorGMAIL_MCP_REDIRECT_PORTexport ="3000" # OAuth callback portTool 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
18/18 tools missing one or more hints — list_emails (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); read_email (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); search_emails (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +15 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.).
Tool test coverage
Only 2/18 tools referenced in tests (11%)
Write tests that reference each tool by name so every tool has at least one test.
Dev dependencies
1 critical/high in dev-only deps (does not ship to users)
Upgrade dev dependencies when convenient.
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