Trello MCP (dannbleeker/trello-mcp) is an MCP server listed on the M8ven Trust Index. It scores 74 out of 100, grade C. It declares 48 tools. No publisher has claimed this listing.

Back to MCP Trust IndexM8ven
C
Emerging
74/100
2 months ago

Trello MCP

A personal remote MCP server that lets Claude read and update Trello boards, with safety guards and access control.

→ dannbleeker/trello-mcp· listed on glama

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.

How we verified

Code Verified⚡ Live Monitored: not connected

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

dannbleeker

Source: Glama

Is this your MCP?

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 →

⚡ Connect GitHub for Live Monitored

Install from

Glama

M8ven verifies MCPs across every public registry — install directly from whichever one you prefer.

// key findings
✅
No credential exfiltration, no sensitive file access, no obfuscation
Static analysis found nothing flowing your secrets to unexpected places.
✅
Open source with a license and README
Anyone can audit the code, the license is declared, and the publisher documents what it does.
🔐
You'll be asked for 3 credentials: TRELLO_API_KEY, TRELLO_KEY, TRELLO_TOKEN
These are read from process.env at runtime. Make sure you trust where they’ll be sent.
// known CVEs in dependencies1 medium14 low

Disclosed vulnerabilities in this server's declared npm dependencies (via OSV). Whether each is reachable depends on the installed versions.

mediumhono@4.12.9GHSA-xf4j-xp2r-rqqx

Hono: Path traversal in toSSG() allows writing files outside the output directory

lowhono@4.12.9GHSA-26pp-8wgv-hjvm

Hono missing validation of cookie name on write path in setCookie()

lowhono@4.12.9GHSA-2gcr-mfcq-wcc3

Hono: app.mount() strips mount prefix using undecoded path, causing incorrect routing for percent-encoded paths

lowhono@4.12.9GHSA-3hrh-pfw6-9m5x

Hono: Cookie helper does not sanitize sameSite and priority, allowing Set-Cookie injection

lowhono@4.12.9GHSA-458j-xx4x-4375

hono Improperly Handles JSX Attribute Names Allows HTML Injection in hono/jsx SSR

Depend on this server? Get alerted when its CVEs change.Watch this server free →
// environment variables
To run this server yourself, you supply these values. They go in your own MCP client configuration and stay on your machine. The secret label means the value is sensitive, not that the server mishandles it.
🔐 secretTRELLO_API_KEY
🔐 secretTRELLO_KEYpnpm exec wrangler secret put
🔐 secretTRELLO_TOKENpnpm exec wrangler secret put
// quality suggestions

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

48/48 tools missing one or more hints — list_boards (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_lists (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint); list_cards (missing: readOnlyHint, destructiveHint, idempotentHint, openWorldHint), +45 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.

Tests exist

No test files found

Add tests that exercise each declared tool.

Production dependencies are patched

1 medium severity in production deps

Run npm audit fix, or upgrade the affected packages to a non-vulnerable version.

Dependency freshness

1/7 production deps stale: just-pick@2023-07-12 (2.9y)

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.

// full audit trail
The findings above are the summary. The full trail, every check we ran, each deduction, the network hosts observed and the dependency advisories, goes to verified publishers, along with an alert whenever a new one lands. Verified publishers can also review each finding and dispute it in one click. Publisher corrections have sharpened several of our checks this month, because the maintainer knows the codebase better than any scanner.
// improvement guidance — verified publishers only
We have 4 concrete improvements we can share with the publisher of this MCP. Each comes with specific guidance to raise the trust score.
// embed badge in your README
[![M8ven Score](https://m8ven.ai/badge/mcp/dannbleeker/trello-mcp)](https://m8ven.ai/mcp/dannbleeker/trello-mcp)
Shows your grade and updates automatically. Prefer no grade? Append ?variant=verified to the badge URL.
commit: b7aa540480242d7fe312e85533e65e69fc25c636
code hash: 930d042dfcb91ac5fcd9b7bbf671f579ae52930d99bf5d7289b9c539565a0996
verified: 6/13/2026, 9:42:28 AM
view raw JSON →
Check MCPs from inside your assistant
Tool Check · MCP

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
check_toolsearch_toolscompare_toolsrecommend_alternativescheck_publisherreport_concern
How to add it →Free · no account needed · works in any MCP client